[TS] Update auto-generated TypeScript Bindings
[ldk-java] / ts / bindings.c.body
index 3e655d013cd87bbd09e35981e269e9b10f94f7f0..8169a425e44d34ecf3d2ca5cff7a756eb47c1959 100644 (file)
@@ -21,6 +21,7 @@ void *malloc(size_t size);
 void free(void *ptr);
 
 #define MALLOC(a, _) malloc(a)
+#define do_MALLOC(a, _b, _c) malloc(a)
 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
 #define DO_ASSERT(a) (void)(a)
 #define CHECK(a)
@@ -40,8 +41,8 @@ _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
                ty elems[]; \
        }; \
        typedef struct name##array * name##Array; \
-       static inline name##Array init_##name##Array(size_t arr_len) { \
-               name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \
+       static inline name##Array init_##name##Array(size_t arr_len, int lineno) { \
+               name##Array arr = (name##Array)do_MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), #name" array init", lineno); \
                arr->arr_len = arr_len; \
                return arr; \
        }
@@ -54,7 +55,7 @@ DECL_ARR_TYPE(char, char);
 typedef charArray jstring;
 
 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
-       charArray arr = init_charArray(len);
+       charArray arr = init_charArray(len, __LINE__);
        memcpy(arr->elems, chars, len);
        return arr;
 }
@@ -78,6 +79,18 @@ uint32_t __attribute__((export_name("TS_malloc"))) TS_malloc(uint32_t size) {
 void __attribute__((export_name("TS_free"))) TS_free(uint32_t ptr) {
        FREE((void*)ptr);
 }
+
+jstring __attribute__((export_name("TS_get_ldk_c_bindings_version"))) TS_get_ldk_c_bindings_version() {
+       const char *res = check_get_ldk_bindings_version();
+       if (res == NULL) return NULL;
+       return str_ref_to_ts(res, strlen(res));
+}
+jstring __attribute__((export_name("TS_get_ldk_version"))) get_ldk_version() {
+       const char *res = check_get_ldk_version();
+       if (res == NULL) return NULL;
+       return str_ref_to_ts(res, strlen(res));
+}
+#include "version.c"
 static inline struct LDKThirtyTwoBytes ThirtyTwoBytes_clone(const struct LDKThirtyTwoBytes *orig) { struct LDKThirtyTwoBytes ret; memcpy(ret.data, orig->data, 32); return ret; }
 static inline LDKAccessError LDKAccessError_from_js(int32_t ord) {
        switch (ord) {
@@ -213,7 +226,7 @@ static inline LDKCVec_u8Z CVec_u8Z_clone(const LDKCVec_u8Z *orig) {
 struct LDKCVec_u8Z TxOut_get_script_pubkey (struct LDKTxOut* thing) {  return CVec_u8Z_clone(&thing->script_pubkey);}int8_tArray  __attribute__((export_name("TS_TxOut_get_script_pubkey"))) TS_TxOut_get_script_pubkey(uint32_t thing) {
        LDKTxOut* thing_conv = (LDKTxOut*)(thing & ~1);
        LDKCVec_u8Z ret_var = TxOut_get_script_pubkey(thing_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -232,11 +245,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_get_ok"))) TS_CResult_ChannelConfigDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(owner & ~1);
        LDKChannelConfig ret_var = CResult_ChannelConfigDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -250,11 +263,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_get_err"))) TS_CResult_ChannelConfigDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelConfigDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -268,11 +281,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_get_ok"))) TS_CResult_OutPointDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)(owner & ~1);
        LDKOutPoint ret_var = CResult_OutPointDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -286,11 +299,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_get_err"))) TS_CResult_OutPointDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_OutPointDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -303,7 +316,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_get_ok"))) TS_CResult_SecretKeyErrorZ_get_ok(uint32_t owner) {
        LDKCResult_SecretKeyErrorZ* owner_conv = (LDKCResult_SecretKeyErrorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult_SecretKeyErrorZ_get_ok(owner_conv).bytes, 32);
        return ret_arr;
 }
@@ -324,7 +337,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_get_ok"))) TS_CResult_PublicKeyErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PublicKeyErrorZ* owner_conv = (LDKCResult_PublicKeyErrorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, CResult_PublicKeyErrorZ_get_ok(owner_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -346,11 +359,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_get_ok"))) TS_CResult_TxCreationKeysDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(owner & ~1);
        LDKTxCreationKeys ret_var = CResult_TxCreationKeysDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -364,11 +377,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_get_err"))) TS_CResult_TxCreationKeysDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_TxCreationKeysDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -382,11 +395,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_get_ok"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(owner & ~1);
        LDKChannelPublicKeys ret_var = CResult_ChannelPublicKeysDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -400,11 +413,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_get_err"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelPublicKeysDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -418,11 +431,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_get_ok"))) TS_CResult_TxCreationKeysErrorZ_get_ok(uint32_t owner) {
        LDKCResult_TxCreationKeysErrorZ* owner_conv = (LDKCResult_TxCreationKeysErrorZ*)(owner & ~1);
        LDKTxCreationKeys ret_var = CResult_TxCreationKeysErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -459,11 +472,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_get_ok"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(owner & ~1);
        LDKHTLCOutputInCommitment ret_var = CResult_HTLCOutputInCommitmentDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -477,11 +490,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_get_err"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_HTLCOutputInCommitmentDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -495,11 +508,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_ok"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
        LDKCounterpartyChannelTransactionParameters ret_var = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -513,11 +526,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_err"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -531,11 +544,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_get_ok"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
        LDKChannelTransactionParameters ret_var = CResult_ChannelTransactionParametersDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -549,11 +562,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_get_err"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelTransactionParametersDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -567,11 +580,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_get_ok"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKHolderCommitmentTransaction ret_var = CResult_HolderCommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -585,11 +598,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_get_err"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_HolderCommitmentTransactionDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -603,11 +616,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_get_ok"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKBuiltCommitmentTransaction ret_var = CResult_BuiltCommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -621,11 +634,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_get_err"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_BuiltCommitmentTransactionDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -639,11 +652,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_get_ok"))) TS_CResult_TrustedClosingTransactionNoneZ_get_ok(uint32_t owner) {
        LDKCResult_TrustedClosingTransactionNoneZ* owner_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)(owner & ~1);
        LDKTrustedClosingTransaction ret_var = *CResult_TrustedClosingTransactionNoneZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner & ~1;
+       ret_ref = (uintptr_t)ret_var.inner & ~1;
        return ret_ref;
 }
 
@@ -663,11 +676,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_get_ok"))) TS_CResult_CommitmentTransactionDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKCommitmentTransaction ret_var = CResult_CommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -681,11 +694,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_get_err"))) TS_CResult_CommitmentTransactionDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_CommitmentTransactionDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -699,11 +712,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNoneZ_get_ok"))) TS_CResult_TrustedCommitmentTransactionNoneZ_get_ok(uint32_t owner) {
        LDKCResult_TrustedCommitmentTransactionNoneZ* owner_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)(owner & ~1);
        LDKTrustedCommitmentTransaction ret_var = *CResult_TrustedCommitmentTransactionNoneZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner & ~1;
+       ret_ref = (uintptr_t)ret_var.inner & ~1;
        return ret_ref;
 }
 
@@ -724,10 +737,10 @@ ptrArray  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_get_ok")))
        LDKCResult_CVec_SignatureZNoneZ* owner_conv = (LDKCResult_CVec_SignatureZNoneZ*)(owner & ~1);
        LDKCVec_SignatureZ ret_var = CResult_CVec_SignatureZNoneZ_get_ok(owner_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
-               int8_tArray ret_conv_12_arr = init_int8_tArray(64);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(64, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_var.data[m].compact_form, 64);
                ret_arr_ptr[m] = ret_conv_12_arr;
        }
@@ -751,11 +764,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_get_ok"))) TS_CResult_ShutdownScriptDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(owner & ~1);
        LDKShutdownScript ret_var = CResult_ShutdownScriptDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -769,11 +782,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_get_err"))) TS_CResult_ShutdownScriptDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ShutdownScriptDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -787,11 +800,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_get_ok"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_get_ok(uint32_t owner) {
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(owner & ~1);
        LDKShutdownScript ret_var = CResult_ShutdownScriptInvalidShutdownScriptZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -805,11 +818,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_get_err"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_get_err(uint32_t owner) {
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(owner & ~1);
        LDKInvalidShutdownScript ret_var = CResult_ShutdownScriptInvalidShutdownScriptZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -842,7 +855,7 @@ LDKCVec_u8Z write_LDKType_jcall(const void* this_arg) {
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = ret->arr_len;
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(ret_ref.data, ret->elems, ret_ref.datalen);
+       memcpy(ret_ref.data, ret->elems, ret_ref.datalen); FREE(ret);
        return ret_ref;
 }
 static void LDKType_JCalls_cloned(LDKType* new_obj) {
@@ -870,7 +883,7 @@ long  __attribute__((export_name("TS_LDKType_new"))) TS_LDKType_new(JSValue o) {
        return (long)res_ptr;
 }
 int16_t  __attribute__((export_name("TS_Type_type_id"))) TS_Type_type_id(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        int16_t ret_val = (this_arg_conv->type_id)(this_arg_conv->this_arg);
@@ -878,7 +891,7 @@ int16_t  __attribute__((export_name("TS_Type_type_id"))) TS_Type_type_id(uint32_
 }
 
 jstring  __attribute__((export_name("TS_Type_debug_str"))) TS_Type_debug_str(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        LDKStr ret_str = (this_arg_conv->debug_str)(this_arg_conv->this_arg);
@@ -888,11 +901,11 @@ jstring  __attribute__((export_name("TS_Type_debug_str"))) TS_Type_debug_str(uin
 }
 
 int8_tArray  __attribute__((export_name("TS_Type_write"))) TS_Type_write(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -911,7 +924,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_TypeZ_Some_get_some"))) TS_LD
        assert(obj->tag == LDKCOption_TypeZ_Some);
                        LDKType* some_ret = MALLOC(sizeof(LDKType), "LDKType");
                        *some_ret = Type_clone(&obj->some);
-       return (uint64_t)some_ret;
+       return (uintptr_t)some_ret;
 }
 static inline struct LDKCOption_TypeZ CResult_COption_TypeZDecodeErrorZ_get_ok(LDKCResult_COption_TypeZDecodeErrorZ *NONNULL_PTR owner){
 CHECK(owner->result_ok);
@@ -921,7 +934,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_get_o
        LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(owner & ~1);
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = CResult_COption_TypeZDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -932,11 +945,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_get_err"))) TS_CResult_COption_TypeZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_COption_TypeZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -971,11 +984,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_get_ok"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(owner & ~1);
        LDKChannelMonitorUpdate ret_var = CResult_ChannelMonitorUpdateDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -989,11 +1002,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_get_err"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelMonitorUpdateDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -1014,33 +1027,33 @@ uint32_t __attribute__((export_name("TS_LDKMonitorEvent_HTLCEvent_get_htlc_event
        LDKMonitorEvent *obj = (LDKMonitorEvent*)(ptr & ~1);
        assert(obj->tag == LDKMonitorEvent_HTLCEvent);
                        LDKHTLCUpdate htlc_event_var = obj->htlc_event;
-                       uint64_t htlc_event_ref = 0;
-                       CHECK((((uint64_t)htlc_event_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&htlc_event_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t htlc_event_ref = 0;
+                       CHECK((((uintptr_t)htlc_event_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&htlc_event_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_event_var);
-                       htlc_event_ref = (uint64_t)htlc_event_var.inner & ~1;
+                       htlc_event_ref = (uintptr_t)htlc_event_var.inner & ~1;
        return htlc_event_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMonitorEvent_CommitmentTxConfirmed_get_commitment_tx_confirmed"))) TS_LDKMonitorEvent_CommitmentTxConfirmed_get_commitment_tx_confirmed(uint32_t ptr) {
        LDKMonitorEvent *obj = (LDKMonitorEvent*)(ptr & ~1);
        assert(obj->tag == LDKMonitorEvent_CommitmentTxConfirmed);
                        LDKOutPoint commitment_tx_confirmed_var = obj->commitment_tx_confirmed;
-                       uint64_t commitment_tx_confirmed_ref = 0;
-                       CHECK((((uint64_t)commitment_tx_confirmed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&commitment_tx_confirmed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t commitment_tx_confirmed_ref = 0;
+                       CHECK((((uintptr_t)commitment_tx_confirmed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&commitment_tx_confirmed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_confirmed_var);
-                       commitment_tx_confirmed_ref = (uint64_t)commitment_tx_confirmed_var.inner & ~1;
+                       commitment_tx_confirmed_ref = (uintptr_t)commitment_tx_confirmed_var.inner & ~1;
        return commitment_tx_confirmed_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMonitorEvent_UpdateCompleted_get_funding_txo"))) TS_LDKMonitorEvent_UpdateCompleted_get_funding_txo(uint32_t ptr) {
        LDKMonitorEvent *obj = (LDKMonitorEvent*)(ptr & ~1);
        assert(obj->tag == LDKMonitorEvent_UpdateCompleted);
                        LDKOutPoint funding_txo_var = obj->update_completed.funding_txo;
-                       uint64_t funding_txo_ref = 0;
-                       CHECK((((uint64_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t funding_txo_ref = 0;
+                       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-                       funding_txo_ref = (uint64_t)funding_txo_var.inner & ~1;
+                       funding_txo_ref = (uintptr_t)funding_txo_var.inner & ~1;
        return funding_txo_ref;
 }
 int64_t __attribute__((export_name("TS_LDKMonitorEvent_UpdateCompleted_get_monitor_update_id"))) TS_LDKMonitorEvent_UpdateCompleted_get_monitor_update_id(uint32_t ptr) {
@@ -1052,11 +1065,11 @@ uint32_t __attribute__((export_name("TS_LDKMonitorEvent_UpdateFailed_get_update_
        LDKMonitorEvent *obj = (LDKMonitorEvent*)(ptr & ~1);
        assert(obj->tag == LDKMonitorEvent_UpdateFailed);
                        LDKOutPoint update_failed_var = obj->update_failed;
-                       uint64_t update_failed_ref = 0;
-                       CHECK((((uint64_t)update_failed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&update_failed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t update_failed_ref = 0;
+                       CHECK((((uintptr_t)update_failed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&update_failed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_failed_var);
-                       update_failed_ref = (uint64_t)update_failed_var.inner & ~1;
+                       update_failed_ref = (uintptr_t)update_failed_var.inner & ~1;
        return update_failed_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKCOption_MonitorEventZ_ty_from_ptr"))) TS_LDKCOption_MonitorEventZ_ty_from_ptr(uint32_t ptr) {
@@ -1070,7 +1083,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_MonitorEventZ_ty_from_ptr")))
 uint32_t __attribute__((export_name("TS_LDKCOption_MonitorEventZ_Some_get_some"))) TS_LDKCOption_MonitorEventZ_Some_get_some(uint32_t ptr) {
        LDKCOption_MonitorEventZ *obj = (LDKCOption_MonitorEventZ*)(ptr & ~1);
        assert(obj->tag == LDKCOption_MonitorEventZ_Some);
-                       uint64_t some_ref = ((uint64_t)&obj->some) | 1;
+                       uintptr_t some_ref = ((uintptr_t)&obj->some) | 1;
        return some_ref;
 }
 static inline struct LDKCOption_MonitorEventZ CResult_COption_MonitorEventZDecodeErrorZ_get_ok(LDKCResult_COption_MonitorEventZDecodeErrorZ *NONNULL_PTR owner){
@@ -1081,7 +1094,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErro
        LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(owner & ~1);
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = CResult_COption_MonitorEventZDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -1092,11 +1105,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_get_err"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_COption_MonitorEventZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -1110,11 +1123,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_get_ok"))) TS_CResult_HTLCUpdateDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(owner & ~1);
        LDKHTLCUpdate ret_var = CResult_HTLCUpdateDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -1128,11 +1141,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_get_err"))) TS_CResult_HTLCUpdateDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_HTLCUpdateDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -1163,11 +1176,11 @@ static inline struct LDKOutPoint C2Tuple_OutPointScriptZ_get_a(LDKC2Tuple_OutPoi
 uint32_t  __attribute__((export_name("TS_C2Tuple_OutPointScriptZ_get_a"))) TS_C2Tuple_OutPointScriptZ_get_a(uint32_t owner) {
        LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)(owner & ~1);
        LDKOutPoint ret_var = C2Tuple_OutPointScriptZ_get_a(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -1180,7 +1193,7 @@ static inline struct LDKCVec_u8Z C2Tuple_OutPointScriptZ_get_b(LDKC2Tuple_OutPoi
 int8_tArray  __attribute__((export_name("TS_C2Tuple_OutPointScriptZ_get_b"))) TS_C2Tuple_OutPointScriptZ_get_b(uint32_t owner) {
        LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)(owner & ~1);
        LDKCVec_u8Z ret_var = C2Tuple_OutPointScriptZ_get_b(owner_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -1201,7 +1214,7 @@ static inline struct LDKCVec_u8Z C2Tuple_u32ScriptZ_get_b(LDKC2Tuple_u32ScriptZ
 int8_tArray  __attribute__((export_name("TS_C2Tuple_u32ScriptZ_get_b"))) TS_C2Tuple_u32ScriptZ_get_b(uint32_t owner) {
        LDKC2Tuple_u32ScriptZ* owner_conv = (LDKC2Tuple_u32ScriptZ*)(owner & ~1);
        LDKCVec_u8Z ret_var = C2Tuple_u32ScriptZ_get_b(owner_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -1212,7 +1225,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_a"))) TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_a(uint32_t owner) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -1224,12 +1237,12 @@ uint32_tArray  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32Script
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(owner & ~1);
        LDKCVec_C2Tuple_u32ScriptZZ ret_var = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_b(owner_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t v = 0; v < ret_var.datalen; v++) {
                LDKC2Tuple_u32ScriptZ* ret_conv_21_conv = &ret_var.data[v];
                // Warning: we really need to clone here, but no clone is available for LDKC2Tuple_u32ScriptZ
-               ret_arr_ptr[v] = ((uint64_t)ret_conv_21_conv) | 1;
+               ret_arr_ptr[v] = ((uintptr_t)ret_conv_21_conv) | 1;
        }
        
        return ret_arr;
@@ -1253,21 +1266,21 @@ uint32_t __attribute__((export_name("TS_LDKPaymentPurpose_ty_from_ptr"))) TS_LDK
 int8_tArray __attribute__((export_name("TS_LDKPaymentPurpose_InvoicePayment_get_payment_preimage"))) TS_LDKPaymentPurpose_InvoicePayment_get_payment_preimage(uint32_t ptr) {
        LDKPaymentPurpose *obj = (LDKPaymentPurpose*)(ptr & ~1);
        assert(obj->tag == LDKPaymentPurpose_InvoicePayment);
-                       int8_tArray payment_preimage_arr = init_int8_tArray(32);
+                       int8_tArray payment_preimage_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_preimage_arr->elems, obj->invoice_payment.payment_preimage.data, 32);
        return payment_preimage_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKPaymentPurpose_InvoicePayment_get_payment_secret"))) TS_LDKPaymentPurpose_InvoicePayment_get_payment_secret(uint32_t ptr) {
        LDKPaymentPurpose *obj = (LDKPaymentPurpose*)(ptr & ~1);
        assert(obj->tag == LDKPaymentPurpose_InvoicePayment);
-                       int8_tArray payment_secret_arr = init_int8_tArray(32);
+                       int8_tArray payment_secret_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_secret_arr->elems, obj->invoice_payment.payment_secret.data, 32);
        return payment_secret_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKPaymentPurpose_SpontaneousPayment_get_spontaneous_payment"))) TS_LDKPaymentPurpose_SpontaneousPayment_get_spontaneous_payment(uint32_t ptr) {
        LDKPaymentPurpose *obj = (LDKPaymentPurpose*)(ptr & ~1);
        assert(obj->tag == LDKPaymentPurpose_SpontaneousPayment);
-                       int8_tArray spontaneous_payment_arr = init_int8_tArray(32);
+                       int8_tArray spontaneous_payment_arr = init_int8_tArray(32, __LINE__);
                        memcpy(spontaneous_payment_arr->elems, obj->spontaneous_payment.data, 32);
        return spontaneous_payment_arr;
 }
@@ -1297,11 +1310,11 @@ uint32_t __attribute__((export_name("TS_LDKNetworkUpdate_ChannelUpdateMessage_ge
        LDKNetworkUpdate *obj = (LDKNetworkUpdate*)(ptr & ~1);
        assert(obj->tag == LDKNetworkUpdate_ChannelUpdateMessage);
                        LDKChannelUpdate msg_var = obj->channel_update_message.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int64_t __attribute__((export_name("TS_LDKNetworkUpdate_ChannelClosed_get_short_channel_id"))) TS_LDKNetworkUpdate_ChannelClosed_get_short_channel_id(uint32_t ptr) {
@@ -1317,7 +1330,7 @@ jboolean __attribute__((export_name("TS_LDKNetworkUpdate_ChannelClosed_get_is_pe
 int8_tArray __attribute__((export_name("TS_LDKNetworkUpdate_NodeFailure_get_node_id"))) TS_LDKNetworkUpdate_NodeFailure_get_node_id(uint32_t ptr) {
        LDKNetworkUpdate *obj = (LDKNetworkUpdate*)(ptr & ~1);
        assert(obj->tag == LDKNetworkUpdate_NodeFailure);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->node_failure.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -1337,7 +1350,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_NetworkUpdateZ_ty_from_ptr"))
 uint32_t __attribute__((export_name("TS_LDKCOption_NetworkUpdateZ_Some_get_some"))) TS_LDKCOption_NetworkUpdateZ_Some_get_some(uint32_t ptr) {
        LDKCOption_NetworkUpdateZ *obj = (LDKCOption_NetworkUpdateZ*)(ptr & ~1);
        assert(obj->tag == LDKCOption_NetworkUpdateZ_Some);
-                       uint64_t some_ref = ((uint64_t)&obj->some) | 1;
+                       uintptr_t some_ref = ((uintptr_t)&obj->some) | 1;
        return some_ref;
 }
 static inline LDKCVec_RouteHopZ CVec_RouteHopZ_clone(const LDKCVec_RouteHopZ *orig) {
@@ -1360,39 +1373,39 @@ uint32_t __attribute__((export_name("TS_LDKSpendableOutputDescriptor_StaticOutpu
        LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)(ptr & ~1);
        assert(obj->tag == LDKSpendableOutputDescriptor_StaticOutput);
                        LDKOutPoint outpoint_var = obj->static_output.outpoint;
-                       uint64_t outpoint_ref = 0;
-                       CHECK((((uint64_t)outpoint_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&outpoint_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t outpoint_ref = 0;
+                       CHECK((((uintptr_t)outpoint_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&outpoint_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_var);
-                       outpoint_ref = (uint64_t)outpoint_var.inner & ~1;
+                       outpoint_ref = (uintptr_t)outpoint_var.inner & ~1;
        return outpoint_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKSpendableOutputDescriptor_StaticOutput_get_output"))) TS_LDKSpendableOutputDescriptor_StaticOutput_get_output(uint32_t ptr) {
        LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)(ptr & ~1);
        assert(obj->tag == LDKSpendableOutputDescriptor_StaticOutput);
-                       uint64_t output_ref = ((uint64_t)&obj->static_output.output) | 1;
-       return (uint64_t)output_ref;
+                       uintptr_t output_ref = ((uintptr_t)&obj->static_output.output) | 1;
+       return (uintptr_t)output_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKSpendableOutputDescriptor_DelayedPaymentOutput_get_delayed_payment_output"))) TS_LDKSpendableOutputDescriptor_DelayedPaymentOutput_get_delayed_payment_output(uint32_t ptr) {
        LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)(ptr & ~1);
        assert(obj->tag == LDKSpendableOutputDescriptor_DelayedPaymentOutput);
                        LDKDelayedPaymentOutputDescriptor delayed_payment_output_var = obj->delayed_payment_output;
-                       uint64_t delayed_payment_output_ref = 0;
-                       CHECK((((uint64_t)delayed_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&delayed_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t delayed_payment_output_ref = 0;
+                       CHECK((((uintptr_t)delayed_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&delayed_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(delayed_payment_output_var);
-                       delayed_payment_output_ref = (uint64_t)delayed_payment_output_var.inner & ~1;
+                       delayed_payment_output_ref = (uintptr_t)delayed_payment_output_var.inner & ~1;
        return delayed_payment_output_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKSpendableOutputDescriptor_StaticPaymentOutput_get_static_payment_output"))) TS_LDKSpendableOutputDescriptor_StaticPaymentOutput_get_static_payment_output(uint32_t ptr) {
        LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)(ptr & ~1);
        assert(obj->tag == LDKSpendableOutputDescriptor_StaticPaymentOutput);
                        LDKStaticPaymentOutputDescriptor static_payment_output_var = obj->static_payment_output;
-                       uint64_t static_payment_output_ref = 0;
-                       CHECK((((uint64_t)static_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&static_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t static_payment_output_ref = 0;
+                       CHECK((((uintptr_t)static_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&static_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(static_payment_output_var);
-                       static_payment_output_ref = (uint64_t)static_payment_output_var.inner & ~1;
+                       static_payment_output_ref = (uintptr_t)static_payment_output_var.inner & ~1;
        return static_payment_output_ref;
 }
 static inline LDKCVec_SpendableOutputDescriptorZ CVec_SpendableOutputDescriptorZ_clone(const LDKCVec_SpendableOutputDescriptorZ *orig) {
@@ -1450,7 +1463,7 @@ uint32_t __attribute__((export_name("TS_LDKEvent_ty_from_ptr"))) TS_LDKEvent_ty_
 int8_tArray __attribute__((export_name("TS_LDKEvent_FundingGenerationReady_get_temporary_channel_id"))) TS_LDKEvent_FundingGenerationReady_get_temporary_channel_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_FundingGenerationReady);
-                       int8_tArray temporary_channel_id_arr = init_int8_tArray(32);
+                       int8_tArray temporary_channel_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(temporary_channel_id_arr->elems, obj->funding_generation_ready.temporary_channel_id.data, 32);
        return temporary_channel_id_arr;
 }
@@ -1463,7 +1476,7 @@ int8_tArray __attribute__((export_name("TS_LDKEvent_FundingGenerationReady_get_o
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_FundingGenerationReady);
                        LDKCVec_u8Z output_script_var = obj->funding_generation_ready.output_script;
-                       int8_tArray output_script_arr = init_int8_tArray(output_script_var.datalen);
+                       int8_tArray output_script_arr = init_int8_tArray(output_script_var.datalen, __LINE__);
                        memcpy(output_script_arr->elems, output_script_var.data, output_script_var.datalen);
        return output_script_arr;
 }
@@ -1475,7 +1488,7 @@ int64_t __attribute__((export_name("TS_LDKEvent_FundingGenerationReady_get_user_
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentReceived_get_payment_hash"))) TS_LDKEvent_PaymentReceived_get_payment_hash(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentReceived);
-                       int8_tArray payment_hash_arr = init_int8_tArray(32);
+                       int8_tArray payment_hash_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_hash_arr->elems, obj->payment_received.payment_hash.data, 32);
        return payment_hash_arr;
 }
@@ -1487,47 +1500,47 @@ int64_t __attribute__((export_name("TS_LDKEvent_PaymentReceived_get_amt"))) TS_L
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentReceived_get_purpose"))) TS_LDKEvent_PaymentReceived_get_purpose(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentReceived);
-                       uint64_t purpose_ref = ((uint64_t)&obj->payment_received.purpose) | 1;
+                       uintptr_t purpose_ref = ((uintptr_t)&obj->payment_received.purpose) | 1;
        return purpose_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentSent_get_payment_id"))) TS_LDKEvent_PaymentSent_get_payment_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentSent);
-                       int8_tArray payment_id_arr = init_int8_tArray(32);
+                       int8_tArray payment_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_id_arr->elems, obj->payment_sent.payment_id.data, 32);
        return payment_id_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentSent_get_payment_preimage"))) TS_LDKEvent_PaymentSent_get_payment_preimage(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentSent);
-                       int8_tArray payment_preimage_arr = init_int8_tArray(32);
+                       int8_tArray payment_preimage_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_preimage_arr->elems, obj->payment_sent.payment_preimage.data, 32);
        return payment_preimage_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentSent_get_payment_hash"))) TS_LDKEvent_PaymentSent_get_payment_hash(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentSent);
-                       int8_tArray payment_hash_arr = init_int8_tArray(32);
+                       int8_tArray payment_hash_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_hash_arr->elems, obj->payment_sent.payment_hash.data, 32);
        return payment_hash_arr;
 }
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentSent_get_fee_paid_msat"))) TS_LDKEvent_PaymentSent_get_fee_paid_msat(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentSent);
-                       uint64_t fee_paid_msat_ref = ((uint64_t)&obj->payment_sent.fee_paid_msat) | 1;
+                       uintptr_t fee_paid_msat_ref = ((uintptr_t)&obj->payment_sent.fee_paid_msat) | 1;
        return fee_paid_msat_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_payment_id"))) TS_LDKEvent_PaymentPathFailed_get_payment_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathFailed);
-                       int8_tArray payment_id_arr = init_int8_tArray(32);
+                       int8_tArray payment_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_id_arr->elems, obj->payment_path_failed.payment_id.data, 32);
        return payment_id_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_payment_hash"))) TS_LDKEvent_PaymentPathFailed_get_payment_hash(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathFailed);
-                       int8_tArray payment_hash_arr = init_int8_tArray(32);
+                       int8_tArray payment_hash_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_hash_arr->elems, obj->payment_path_failed.payment_hash.data, 32);
        return payment_hash_arr;
 }
@@ -1539,7 +1552,7 @@ jboolean __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_rejected_
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_network_update"))) TS_LDKEvent_PaymentPathFailed_get_network_update(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathFailed);
-                       uint64_t network_update_ref = ((uint64_t)&obj->payment_path_failed.network_update) | 1;
+                       uintptr_t network_update_ref = ((uintptr_t)&obj->payment_path_failed.network_update) | 1;
        return network_update_ref;
 }
 jboolean __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_all_paths_failed"))) TS_LDKEvent_PaymentPathFailed_get_all_paths_failed(uint32_t ptr) {
@@ -1552,15 +1565,15 @@ uint32_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_path
        assert(obj->tag == LDKEvent_PaymentPathFailed);
                        LDKCVec_RouteHopZ path_var = obj->payment_path_failed.path;
                        uint32_tArray path_arr = NULL;
-                       path_arr = init_uint32_tArray(path_var.datalen);
+                       path_arr = init_uint32_tArray(path_var.datalen, __LINE__);
                        uint32_t *path_arr_ptr = (uint32_t*)(((uint8_t*)path_arr) + 4);
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
-                               uint64_t path_conv_10_ref = 0;
-                               CHECK((((uint64_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uint64_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                               uintptr_t path_conv_10_ref = 0;
+                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uint64_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        
@@ -1569,33 +1582,33 @@ uint32_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_path
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_short_channel_id"))) TS_LDKEvent_PaymentPathFailed_get_short_channel_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathFailed);
-                       uint64_t short_channel_id_ref = ((uint64_t)&obj->payment_path_failed.short_channel_id) | 1;
+                       uintptr_t short_channel_id_ref = ((uintptr_t)&obj->payment_path_failed.short_channel_id) | 1;
        return short_channel_id_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentPathFailed_get_retry"))) TS_LDKEvent_PaymentPathFailed_get_retry(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathFailed);
                        LDKRouteParameters retry_var = obj->payment_path_failed.retry;
-                       uint64_t retry_ref = 0;
-                       if ((uint64_t)retry_var.inner > 4096) {
-                               CHECK((((uint64_t)retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uint64_t)&retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t retry_ref = 0;
+                       if ((uintptr_t)retry_var.inner > 4096) {
+                               CHECK((((uintptr_t)retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                               CHECK((((uintptr_t)&retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(retry_var);
-                               retry_ref = (uint64_t)retry_var.inner & ~1;
+                               retry_ref = (uintptr_t)retry_var.inner & ~1;
                        }
        return retry_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentFailed_get_payment_id"))) TS_LDKEvent_PaymentFailed_get_payment_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentFailed);
-                       int8_tArray payment_id_arr = init_int8_tArray(32);
+                       int8_tArray payment_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_id_arr->elems, obj->payment_failed.payment_id.data, 32);
        return payment_id_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentFailed_get_payment_hash"))) TS_LDKEvent_PaymentFailed_get_payment_hash(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentFailed);
-                       int8_tArray payment_hash_arr = init_int8_tArray(32);
+                       int8_tArray payment_hash_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_hash_arr->elems, obj->payment_failed.payment_hash.data, 32);
        return payment_hash_arr;
 }
@@ -1609,10 +1622,10 @@ uint32_tArray __attribute__((export_name("TS_LDKEvent_SpendableOutputs_get_outpu
        assert(obj->tag == LDKEvent_SpendableOutputs);
                        LDKCVec_SpendableOutputDescriptorZ outputs_var = obj->spendable_outputs.outputs;
                        uint32_tArray outputs_arr = NULL;
-                       outputs_arr = init_uint32_tArray(outputs_var.datalen);
+                       outputs_arr = init_uint32_tArray(outputs_var.datalen, __LINE__);
                        uint32_t *outputs_arr_ptr = (uint32_t*)(((uint8_t*)outputs_arr) + 4);
                        for (size_t b = 0; b < outputs_var.datalen; b++) {
-                               uint64_t outputs_conv_27_ref = ((uint64_t)&outputs_var.data[b]) | 1;
+                               uintptr_t outputs_conv_27_ref = ((uintptr_t)&outputs_var.data[b]) | 1;
                                outputs_arr_ptr[b] = outputs_conv_27_ref;
                        }
                        
@@ -1621,7 +1634,7 @@ uint32_tArray __attribute__((export_name("TS_LDKEvent_SpendableOutputs_get_outpu
 uint32_t __attribute__((export_name("TS_LDKEvent_PaymentForwarded_get_fee_earned_msat"))) TS_LDKEvent_PaymentForwarded_get_fee_earned_msat(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentForwarded);
-                       uint64_t fee_earned_msat_ref = ((uint64_t)&obj->payment_forwarded.fee_earned_msat) | 1;
+                       uintptr_t fee_earned_msat_ref = ((uintptr_t)&obj->payment_forwarded.fee_earned_msat) | 1;
        return fee_earned_msat_ref;
 }
 jboolean __attribute__((export_name("TS_LDKEvent_PaymentForwarded_get_claim_from_onchain_tx"))) TS_LDKEvent_PaymentForwarded_get_claim_from_onchain_tx(uint32_t ptr) {
@@ -1632,7 +1645,7 @@ jboolean __attribute__((export_name("TS_LDKEvent_PaymentForwarded_get_claim_from
 int8_tArray __attribute__((export_name("TS_LDKEvent_ChannelClosed_get_channel_id"))) TS_LDKEvent_ChannelClosed_get_channel_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_ChannelClosed);
-                       int8_tArray channel_id_arr = init_int8_tArray(32);
+                       int8_tArray channel_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(channel_id_arr->elems, obj->channel_closed.channel_id.data, 32);
        return channel_id_arr;
 }
@@ -1644,13 +1657,13 @@ int64_t __attribute__((export_name("TS_LDKEvent_ChannelClosed_get_user_channel_i
 uint32_t __attribute__((export_name("TS_LDKEvent_ChannelClosed_get_reason"))) TS_LDKEvent_ChannelClosed_get_reason(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_ChannelClosed);
-                       uint64_t reason_ref = ((uint64_t)&obj->channel_closed.reason) | 1;
+                       uintptr_t reason_ref = ((uintptr_t)&obj->channel_closed.reason) | 1;
        return reason_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_DiscardFunding_get_channel_id"))) TS_LDKEvent_DiscardFunding_get_channel_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_DiscardFunding);
-                       int8_tArray channel_id_arr = init_int8_tArray(32);
+                       int8_tArray channel_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(channel_id_arr->elems, obj->discard_funding.channel_id.data, 32);
        return channel_id_arr;
 }
@@ -1658,21 +1671,21 @@ int8_tArray __attribute__((export_name("TS_LDKEvent_DiscardFunding_get_transacti
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_DiscardFunding);
                        LDKTransaction transaction_var = obj->discard_funding.transaction;
-                       int8_tArray transaction_arr = init_int8_tArray(transaction_var.datalen);
+                       int8_tArray transaction_arr = init_int8_tArray(transaction_var.datalen, __LINE__);
                        memcpy(transaction_arr->elems, transaction_var.data, transaction_var.datalen);
        return transaction_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathSuccessful_get_payment_id"))) TS_LDKEvent_PaymentPathSuccessful_get_payment_id(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathSuccessful);
-                       int8_tArray payment_id_arr = init_int8_tArray(32);
+                       int8_tArray payment_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_id_arr->elems, obj->payment_path_successful.payment_id.data, 32);
        return payment_id_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathSuccessful_get_payment_hash"))) TS_LDKEvent_PaymentPathSuccessful_get_payment_hash(uint32_t ptr) {
        LDKEvent *obj = (LDKEvent*)(ptr & ~1);
        assert(obj->tag == LDKEvent_PaymentPathSuccessful);
-                       int8_tArray payment_hash_arr = init_int8_tArray(32);
+                       int8_tArray payment_hash_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_hash_arr->elems, obj->payment_path_successful.payment_hash.data, 32);
        return payment_hash_arr;
 }
@@ -1681,15 +1694,15 @@ uint32_tArray __attribute__((export_name("TS_LDKEvent_PaymentPathSuccessful_get_
        assert(obj->tag == LDKEvent_PaymentPathSuccessful);
                        LDKCVec_RouteHopZ path_var = obj->payment_path_successful.path;
                        uint32_tArray path_arr = NULL;
-                       path_arr = init_uint32_tArray(path_var.datalen);
+                       path_arr = init_uint32_tArray(path_var.datalen, __LINE__);
                        uint32_t *path_arr_ptr = (uint32_t*)(((uint8_t*)path_arr) + 4);
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
-                               uint64_t path_conv_10_ref = 0;
-                               CHECK((((uint64_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uint64_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                               uintptr_t path_conv_10_ref = 0;
+                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uint64_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        
@@ -1705,9 +1718,9 @@ static inline LDKCVec_EventZ CVec_EventZ_clone(const LDKCVec_EventZ *orig) {
 static inline uintptr_t C2Tuple_usizeTransactionZ_get_a(LDKC2Tuple_usizeTransactionZ *NONNULL_PTR owner){
        return owner->a;
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_get_a"))) TS_C2Tuple_usizeTransactionZ_get_a(uint32_t owner) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_get_a"))) TS_C2Tuple_usizeTransactionZ_get_a(uint32_t owner) {
        LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)(owner & ~1);
-       int64_t ret_val = C2Tuple_usizeTransactionZ_get_a(owner_conv);
+       intptr_t ret_val = C2Tuple_usizeTransactionZ_get_a(owner_conv);
        return ret_val;
 }
 
@@ -1717,7 +1730,7 @@ static inline struct LDKTransaction C2Tuple_usizeTransactionZ_get_b(LDKC2Tuple_u
 int8_tArray  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_get_b"))) TS_C2Tuple_usizeTransactionZ_get_b(uint32_t owner) {
        LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)(owner & ~1);
        LDKTransaction ret_var = C2Tuple_usizeTransactionZ_get_b(owner_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -1745,7 +1758,7 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_get_b"))) TS_C2Tuple_
        LDKC2Tuple_u32TxOutZ* owner_conv = (LDKC2Tuple_u32TxOutZ*)(owner & ~1);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = C2Tuple_u32TxOutZ_get_b(owner_conv);
-       return (uint64_t)ret_ref;
+       return (uintptr_t)ret_ref;
 }
 
 static inline LDKCVec_C2Tuple_u32TxOutZZ CVec_C2Tuple_u32TxOutZZ_clone(const LDKCVec_C2Tuple_u32TxOutZZ *orig) {
@@ -1760,7 +1773,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_a"))) TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_a(uint32_t owner) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -1772,12 +1785,12 @@ uint32_tArray  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZ
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(owner & ~1);
        LDKCVec_C2Tuple_u32TxOutZZ ret_var = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_b(owner_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t u = 0; u < ret_var.datalen; u++) {
                LDKC2Tuple_u32TxOutZ* ret_conv_20_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
                *ret_conv_20_conv = ret_var.data[u];
-               ret_arr_ptr[u] = ((uint64_t)ret_conv_20_conv);
+               ret_arr_ptr[u] = ((uintptr_t)ret_conv_20_conv);
        }
        
        FREE(ret_var.data);
@@ -1855,7 +1868,7 @@ static inline struct LDKSignature C2Tuple_SignatureCVec_SignatureZZ_get_a(LDKC2T
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_get_a"))) TS_C2Tuple_SignatureCVec_SignatureZZ_get_a(uint32_t owner) {
        LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_SignatureCVec_SignatureZZ_get_a(owner_conv).compact_form, 64);
        return ret_arr;
 }
@@ -1867,10 +1880,10 @@ ptrArray  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_get_b
        LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(owner & ~1);
        LDKCVec_SignatureZ ret_var = C2Tuple_SignatureCVec_SignatureZZ_get_b(owner_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
-               int8_tArray ret_conv_12_arr = init_int8_tArray(64);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(64, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_var.data[m].compact_form, 64);
                ret_arr_ptr[m] = ret_conv_12_arr;
        }
@@ -1886,7 +1899,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_Signature
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(owner & ~1);
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_get_ok(owner_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 static inline void CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_get_err(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR owner){
@@ -1904,7 +1917,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_SignatureNoneZ_get_ok"))) TS_CResult_SignatureNoneZ_get_ok(uint32_t owner) {
        LDKCResult_SignatureNoneZ* owner_conv = (LDKCResult_SignatureNoneZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, CResult_SignatureNoneZ_get_ok(owner_conv).compact_form, 64);
        return ret_arr;
 }
@@ -1933,7 +1946,7 @@ LDKPublicKey get_per_commitment_point_LDKBaseSign_jcall(const void* this_arg, ui
        int8_tArray ret = (int8_tArray)js_invoke_function_1(j_calls->instance_ptr, 3, (uint32_t)idx);
        LDKPublicKey ret_ref;
        CHECK(ret->arr_len == 33);
-       memcpy(ret_ref.compressed_form, ret->elems, 33);
+       memcpy(ret_ref.compressed_form, ret->elems, 33); FREE(ret);
        return ret_ref;
 }
 LDKThirtyTwoBytes release_commitment_secret_LDKBaseSign_jcall(const void* this_arg, uint64_t idx) {
@@ -1941,23 +1954,23 @@ LDKThirtyTwoBytes release_commitment_secret_LDKBaseSign_jcall(const void* this_a
        int8_tArray ret = (int8_tArray)js_invoke_function_1(j_calls->instance_ptr, 4, (uint32_t)idx);
        LDKThirtyTwoBytes ret_ref;
        CHECK(ret->arr_len == 32);
-       memcpy(ret_ref.data, ret->elems, 32);
+       memcpy(ret_ref.data, ret->elems, 32); FREE(ret);
        return ret_ref;
 }
 LDKCResult_NoneNoneZ validate_holder_commitment_LDKBaseSign_jcall(const void* this_arg, const LDKHolderCommitmentTransaction * holder_tx) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKHolderCommitmentTransaction holder_tx_var = *holder_tx;
-       uint64_t holder_tx_ref = 0;
+       uintptr_t holder_tx_ref = 0;
        holder_tx_var = HolderCommitmentTransaction_clone(holder_tx);
-       CHECK((((uint64_t)holder_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&holder_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)holder_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&holder_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(holder_tx_var);
-       holder_tx_ref = (uint64_t)holder_tx_var.inner;
+       holder_tx_ref = (uintptr_t)holder_tx_var.inner;
        if (holder_tx_var.is_owned) {
                holder_tx_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 5, (uint32_t)holder_tx_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -1968,23 +1981,23 @@ LDKThirtyTwoBytes channel_keys_id_LDKBaseSign_jcall(const void* this_arg) {
        int8_tArray ret = (int8_tArray)js_invoke_function_0(j_calls->instance_ptr, 6);
        LDKThirtyTwoBytes ret_ref;
        CHECK(ret->arr_len == 32);
-       memcpy(ret_ref.data, ret->elems, 32);
+       memcpy(ret_ref.data, ret->elems, 32); FREE(ret);
        return ret_ref;
 }
 LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment_LDKBaseSign_jcall(const void* this_arg, const LDKCommitmentTransaction * commitment_tx) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKCommitmentTransaction commitment_tx_var = *commitment_tx;
-       uint64_t commitment_tx_ref = 0;
+       uintptr_t commitment_tx_ref = 0;
        commitment_tx_var = CommitmentTransaction_clone(commitment_tx);
-       CHECK((((uint64_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_var);
-       commitment_tx_ref = (uint64_t)commitment_tx_var.inner;
+       commitment_tx_ref = (uintptr_t)commitment_tx_var.inner;
        if (commitment_tx_var.is_owned) {
                commitment_tx_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 7, (uint32_t)commitment_tx_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -1992,10 +2005,10 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment_L
 }
 LDKCResult_NoneNoneZ validate_counterparty_revocation_LDKBaseSign_jcall(const void* this_arg, uint64_t idx, const uint8_t (* secret)[32]) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
-       int8_tArray secret_arr = init_int8_tArray(32);
+       int8_tArray secret_arr = init_int8_tArray(32, __LINE__);
        memcpy(secret_arr->elems, *secret, 32);
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 8, (uint32_t)idx, (uint32_t)secret_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2004,17 +2017,17 @@ LDKCResult_NoneNoneZ validate_counterparty_revocation_LDKBaseSign_jcall(const vo
 LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htlcs_LDKBaseSign_jcall(const void* this_arg, const LDKHolderCommitmentTransaction * commitment_tx) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKHolderCommitmentTransaction commitment_tx_var = *commitment_tx;
-       uint64_t commitment_tx_ref = 0;
+       uintptr_t commitment_tx_ref = 0;
        commitment_tx_var = HolderCommitmentTransaction_clone(commitment_tx);
-       CHECK((((uint64_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_var);
-       commitment_tx_ref = (uint64_t)commitment_tx_var.inner;
+       commitment_tx_ref = (uintptr_t)commitment_tx_var.inner;
        if (commitment_tx_var.is_owned) {
                commitment_tx_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 9, (uint32_t)commitment_tx_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2023,13 +2036,13 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htl
 LDKCResult_SignatureNoneZ sign_justice_revoked_output_LDKBaseSign_jcall(const void* this_arg, LDKTransaction justice_tx, uintptr_t input, uint64_t amount, const uint8_t (* per_commitment_key)[32]) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKTransaction justice_tx_var = justice_tx;
-       int8_tArray justice_tx_arr = init_int8_tArray(justice_tx_var.datalen);
+       int8_tArray justice_tx_arr = init_int8_tArray(justice_tx_var.datalen, __LINE__);
        memcpy(justice_tx_arr->elems, justice_tx_var.data, justice_tx_var.datalen);
        Transaction_free(justice_tx_var);
-       int8_tArray per_commitment_key_arr = init_int8_tArray(32);
+       int8_tArray per_commitment_key_arr = init_int8_tArray(32, __LINE__);
        memcpy(per_commitment_key_arr->elems, *per_commitment_key, 32);
        uint32_t ret = js_invoke_function_4(j_calls->instance_ptr, 10, (uint32_t)justice_tx_arr, (uint32_t)input, (uint32_t)amount, (uint32_t)per_commitment_key_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2038,23 +2051,23 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_output_LDKBaseSign_jcall(const vo
 LDKCResult_SignatureNoneZ sign_justice_revoked_htlc_LDKBaseSign_jcall(const void* this_arg, LDKTransaction justice_tx, uintptr_t input, uint64_t amount, const uint8_t (* per_commitment_key)[32], const LDKHTLCOutputInCommitment * htlc) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKTransaction justice_tx_var = justice_tx;
-       int8_tArray justice_tx_arr = init_int8_tArray(justice_tx_var.datalen);
+       int8_tArray justice_tx_arr = init_int8_tArray(justice_tx_var.datalen, __LINE__);
        memcpy(justice_tx_arr->elems, justice_tx_var.data, justice_tx_var.datalen);
        Transaction_free(justice_tx_var);
-       int8_tArray per_commitment_key_arr = init_int8_tArray(32);
+       int8_tArray per_commitment_key_arr = init_int8_tArray(32, __LINE__);
        memcpy(per_commitment_key_arr->elems, *per_commitment_key, 32);
        LDKHTLCOutputInCommitment htlc_var = *htlc;
-       uint64_t htlc_ref = 0;
+       uintptr_t htlc_ref = 0;
        htlc_var = HTLCOutputInCommitment_clone(htlc);
-       CHECK((((uint64_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_var);
-       htlc_ref = (uint64_t)htlc_var.inner;
+       htlc_ref = (uintptr_t)htlc_var.inner;
        if (htlc_var.is_owned) {
                htlc_ref |= 1;
        }
        uint32_t ret = js_invoke_function_5(j_calls->instance_ptr, 11, (uint32_t)justice_tx_arr, (uint32_t)input, (uint32_t)amount, (uint32_t)per_commitment_key_arr, (uint32_t)htlc_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2063,23 +2076,23 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_htlc_LDKBaseSign_jcall(const void
 LDKCResult_SignatureNoneZ sign_counterparty_htlc_transaction_LDKBaseSign_jcall(const void* this_arg, LDKTransaction htlc_tx, uintptr_t input, uint64_t amount, LDKPublicKey per_commitment_point, const LDKHTLCOutputInCommitment * htlc) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKTransaction htlc_tx_var = htlc_tx;
-       int8_tArray htlc_tx_arr = init_int8_tArray(htlc_tx_var.datalen);
+       int8_tArray htlc_tx_arr = init_int8_tArray(htlc_tx_var.datalen, __LINE__);
        memcpy(htlc_tx_arr->elems, htlc_tx_var.data, htlc_tx_var.datalen);
        Transaction_free(htlc_tx_var);
-       int8_tArray per_commitment_point_arr = init_int8_tArray(33);
+       int8_tArray per_commitment_point_arr = init_int8_tArray(33, __LINE__);
        memcpy(per_commitment_point_arr->elems, per_commitment_point.compressed_form, 33);
        LDKHTLCOutputInCommitment htlc_var = *htlc;
-       uint64_t htlc_ref = 0;
+       uintptr_t htlc_ref = 0;
        htlc_var = HTLCOutputInCommitment_clone(htlc);
-       CHECK((((uint64_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_var);
-       htlc_ref = (uint64_t)htlc_var.inner;
+       htlc_ref = (uintptr_t)htlc_var.inner;
        if (htlc_var.is_owned) {
                htlc_ref |= 1;
        }
        uint32_t ret = js_invoke_function_5(j_calls->instance_ptr, 12, (uint32_t)htlc_tx_arr, (uint32_t)input, (uint32_t)amount, (uint32_t)per_commitment_point_arr, (uint32_t)htlc_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2088,17 +2101,17 @@ LDKCResult_SignatureNoneZ sign_counterparty_htlc_transaction_LDKBaseSign_jcall(c
 LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void* this_arg, const LDKClosingTransaction * closing_tx) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKClosingTransaction closing_tx_var = *closing_tx;
-       uint64_t closing_tx_ref = 0;
+       uintptr_t closing_tx_ref = 0;
        closing_tx_var = ClosingTransaction_clone(closing_tx);
-       CHECK((((uint64_t)closing_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&closing_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)closing_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&closing_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(closing_tx_var);
-       closing_tx_ref = (uint64_t)closing_tx_var.inner;
+       closing_tx_ref = (uintptr_t)closing_tx_var.inner;
        if (closing_tx_var.is_owned) {
                closing_tx_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 13, (uint32_t)closing_tx_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2107,17 +2120,17 @@ LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void*
 LDKCResult_SignatureNoneZ sign_channel_announcement_LDKBaseSign_jcall(const void* this_arg, const LDKUnsignedChannelAnnouncement * msg) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKUnsignedChannelAnnouncement msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UnsignedChannelAnnouncement_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 14, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -2126,12 +2139,12 @@ LDKCResult_SignatureNoneZ sign_channel_announcement_LDKBaseSign_jcall(const void
 void ready_channel_LDKBaseSign_jcall(void* this_arg, const LDKChannelTransactionParameters * channel_parameters) {
        LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
        LDKChannelTransactionParameters channel_parameters_var = *channel_parameters;
-       uint64_t channel_parameters_ref = 0;
+       uintptr_t channel_parameters_ref = 0;
        channel_parameters_var = ChannelTransactionParameters_clone(channel_parameters);
-       CHECK((((uint64_t)channel_parameters_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&channel_parameters_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)channel_parameters_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&channel_parameters_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_var);
-       channel_parameters_ref = (uint64_t)channel_parameters_var.inner;
+       channel_parameters_ref = (uintptr_t)channel_parameters_var.inner;
        if (channel_parameters_var.is_owned) {
                channel_parameters_ref |= 1;
        }
@@ -2178,25 +2191,25 @@ long  __attribute__((export_name("TS_LDKBaseSign_new"))) TS_LDKBaseSign_new(JSVa
        return (long)res_ptr;
 }
 int8_tArray  __attribute__((export_name("TS_BaseSign_get_per_commitment_point"))) TS_BaseSign_get_per_commitment_point(uint32_t this_arg, int64_t idx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->get_per_commitment_point)(this_arg_conv->this_arg, idx).compressed_form, 33);
        return ret_arr;
 }
 
 int8_tArray  __attribute__((export_name("TS_BaseSign_release_commitment_secret"))) TS_BaseSign_release_commitment_secret(uint32_t this_arg, int64_t idx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->release_commitment_secret)(this_arg_conv->this_arg, idx).data, 32);
        return ret_arr;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_validate_holder_commitment"))) TS_BaseSign_validate_holder_commitment(uint32_t this_arg, uint32_t holder_tx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKHolderCommitmentTransaction holder_tx_conv;
@@ -2205,20 +2218,20 @@ uint32_t  __attribute__((export_name("TS_BaseSign_validate_holder_commitment")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(holder_tx_conv);
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = (this_arg_conv->validate_holder_commitment)(this_arg_conv->this_arg, &holder_tx_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_BaseSign_channel_keys_id"))) TS_BaseSign_channel_keys_id(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->channel_keys_id)(this_arg_conv->this_arg).data, 32);
        return ret_arr;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_sign_counterparty_commitment"))) TS_BaseSign_sign_counterparty_commitment(uint32_t this_arg, uint32_t commitment_tx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKCommitmentTransaction commitment_tx_conv;
@@ -2227,24 +2240,24 @@ uint32_t  __attribute__((export_name("TS_BaseSign_sign_counterparty_commitment")
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_conv);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = (this_arg_conv->sign_counterparty_commitment)(this_arg_conv->this_arg, &commitment_tx_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_validate_counterparty_revocation"))) TS_BaseSign_validate_counterparty_revocation(uint32_t this_arg, int64_t idx, int8_tArray secret) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        unsigned char secret_arr[32];
        CHECK(secret->arr_len == 32);
-       memcpy(secret_arr, secret->elems, 32);
+       memcpy(secret_arr, secret->elems, 32); FREE(secret);
        unsigned char (*secret_ref)[32] = &secret_arr;
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = (this_arg_conv->validate_counterparty_revocation)(this_arg_conv->this_arg, idx, secret_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_sign_holder_commitment_and_htlcs"))) TS_BaseSign_sign_holder_commitment_and_htlcs(uint32_t this_arg, uint32_t commitment_tx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKHolderCommitmentTransaction commitment_tx_conv;
@@ -2253,39 +2266,39 @@ uint32_t  __attribute__((export_name("TS_BaseSign_sign_holder_commitment_and_htl
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_conv);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = (this_arg_conv->sign_holder_commitment_and_htlcs)(this_arg_conv->this_arg, &commitment_tx_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
-uint32_t  __attribute__((export_name("TS_BaseSign_sign_justice_revoked_output"))) TS_BaseSign_sign_justice_revoked_output(uint32_t this_arg, int8_tArray justice_tx, int64_t input, int64_t amount, int8_tArray per_commitment_key) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+uint32_t  __attribute__((export_name("TS_BaseSign_sign_justice_revoked_output"))) TS_BaseSign_sign_justice_revoked_output(uint32_t this_arg, int8_tArray justice_tx, intptr_t input, int64_t amount, int8_tArray per_commitment_key) {
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction justice_tx_ref;
        justice_tx_ref.datalen = justice_tx->arr_len;
        justice_tx_ref.data = MALLOC(justice_tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(justice_tx_ref.data, justice_tx->elems, justice_tx_ref.datalen);
+       memcpy(justice_tx_ref.data, justice_tx->elems, justice_tx_ref.datalen); FREE(justice_tx);
        justice_tx_ref.data_is_owned = true;
        unsigned char per_commitment_key_arr[32];
        CHECK(per_commitment_key->arr_len == 32);
-       memcpy(per_commitment_key_arr, per_commitment_key->elems, 32);
+       memcpy(per_commitment_key_arr, per_commitment_key->elems, 32); FREE(per_commitment_key);
        unsigned char (*per_commitment_key_ref)[32] = &per_commitment_key_arr;
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_justice_revoked_output)(this_arg_conv->this_arg, justice_tx_ref, input, amount, per_commitment_key_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
-uint32_t  __attribute__((export_name("TS_BaseSign_sign_justice_revoked_htlc"))) TS_BaseSign_sign_justice_revoked_htlc(uint32_t this_arg, int8_tArray justice_tx, int64_t input, int64_t amount, int8_tArray per_commitment_key, uint32_t htlc) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+uint32_t  __attribute__((export_name("TS_BaseSign_sign_justice_revoked_htlc"))) TS_BaseSign_sign_justice_revoked_htlc(uint32_t this_arg, int8_tArray justice_tx, intptr_t input, int64_t amount, int8_tArray per_commitment_key, uint32_t htlc) {
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction justice_tx_ref;
        justice_tx_ref.datalen = justice_tx->arr_len;
        justice_tx_ref.data = MALLOC(justice_tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(justice_tx_ref.data, justice_tx->elems, justice_tx_ref.datalen);
+       memcpy(justice_tx_ref.data, justice_tx->elems, justice_tx_ref.datalen); FREE(justice_tx);
        justice_tx_ref.data_is_owned = true;
        unsigned char per_commitment_key_arr[32];
        CHECK(per_commitment_key->arr_len == 32);
-       memcpy(per_commitment_key_arr, per_commitment_key->elems, 32);
+       memcpy(per_commitment_key_arr, per_commitment_key->elems, 32); FREE(per_commitment_key);
        unsigned char (*per_commitment_key_ref)[32] = &per_commitment_key_arr;
        LDKHTLCOutputInCommitment htlc_conv;
        htlc_conv.inner = (void*)(htlc & (~1));
@@ -2293,32 +2306,32 @@ uint32_t  __attribute__((export_name("TS_BaseSign_sign_justice_revoked_htlc")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_justice_revoked_htlc)(this_arg_conv->this_arg, justice_tx_ref, input, amount, per_commitment_key_ref, &htlc_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
-uint32_t  __attribute__((export_name("TS_BaseSign_sign_counterparty_htlc_transaction"))) TS_BaseSign_sign_counterparty_htlc_transaction(uint32_t this_arg, int8_tArray htlc_tx, int64_t input, int64_t amount, int8_tArray per_commitment_point, uint32_t htlc) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+uint32_t  __attribute__((export_name("TS_BaseSign_sign_counterparty_htlc_transaction"))) TS_BaseSign_sign_counterparty_htlc_transaction(uint32_t this_arg, int8_tArray htlc_tx, intptr_t input, int64_t amount, int8_tArray per_commitment_point, uint32_t htlc) {
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction htlc_tx_ref;
        htlc_tx_ref.datalen = htlc_tx->arr_len;
        htlc_tx_ref.data = MALLOC(htlc_tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(htlc_tx_ref.data, htlc_tx->elems, htlc_tx_ref.datalen);
+       memcpy(htlc_tx_ref.data, htlc_tx->elems, htlc_tx_ref.datalen); FREE(htlc_tx);
        htlc_tx_ref.data_is_owned = true;
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        LDKHTLCOutputInCommitment htlc_conv;
        htlc_conv.inner = (void*)(htlc & (~1));
        htlc_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_counterparty_htlc_transaction)(this_arg_conv->this_arg, htlc_tx_ref, input, amount, per_commitment_point_ref, &htlc_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_sign_closing_transaction"))) TS_BaseSign_sign_closing_transaction(uint32_t this_arg, uint32_t closing_tx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKClosingTransaction closing_tx_conv;
@@ -2327,11 +2340,11 @@ uint32_t  __attribute__((export_name("TS_BaseSign_sign_closing_transaction"))) T
        CHECK_INNER_FIELD_ACCESS_OR_NULL(closing_tx_conv);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_closing_transaction)(this_arg_conv->this_arg, &closing_tx_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_BaseSign_sign_channel_announcement"))) TS_BaseSign_sign_channel_announcement(uint32_t this_arg, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKUnsignedChannelAnnouncement msg_conv;
@@ -2340,11 +2353,11 @@ uint32_t  __attribute__((export_name("TS_BaseSign_sign_channel_announcement")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_channel_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_BaseSign_ready_channel"))) TS_BaseSign_ready_channel(uint32_t this_arg, uint32_t channel_parameters) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKChannelTransactionParameters channel_parameters_conv;
@@ -2360,15 +2373,15 @@ LDKChannelPublicKeys LDKBaseSign_set_get_pubkeys(LDKBaseSign* this_arg) {
        return this_arg->pubkeys;
 }
 uint32_t  __attribute__((export_name("TS_BaseSign_get_pubkeys"))) TS_BaseSign_get_pubkeys(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKChannelPublicKeys ret_var = LDKBaseSign_set_get_pubkeys(this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2392,7 +2405,7 @@ LDKCVec_u8Z write_LDKSign_jcall(const void* this_arg) {
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = ret->arr_len;
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(ret_ref.data, ret->elems, ret_ref.datalen);
+       memcpy(ret_ref.data, ret->elems, ret_ref.datalen); FREE(ret);
        return ret_ref;
 }
 static void LDKSign_JCalls_cloned(LDKSign* new_obj) {
@@ -2426,11 +2439,11 @@ long  __attribute__((export_name("TS_LDKSign_new"))) TS_LDKSign_new(JSValue o, J
        return (long)res_ptr;
 }
 int8_tArray  __attribute__((export_name("TS_Sign_write"))) TS_Sign_write(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSign* this_arg_conv = (LDKSign*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -2441,7 +2454,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelMonitorZ_get_a(LD
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_get_a"))) TS_C2Tuple_BlockHashChannelMonitorZ_get_a(uint32_t owner) {
        LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_BlockHashChannelMonitorZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -2452,11 +2465,11 @@ static inline struct LDKChannelMonitor C2Tuple_BlockHashChannelMonitorZ_get_b(LD
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_get_b"))) TS_C2Tuple_BlockHashChannelMonitorZ_get_b(uint32_t owner) {
        LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(owner & ~1);
        LDKChannelMonitor ret_var = C2Tuple_BlockHashChannelMonitorZ_get_b(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2471,7 +2484,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitor
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(owner & ~1);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_ok(owner_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 static inline struct LDKDecodeError CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ *NONNULL_PTR owner){
@@ -2481,11 +2494,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2499,11 +2512,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_get_ok"))) TS_CResult_RouteHopDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)(owner & ~1);
        LDKRouteHop ret_var = CResult_RouteHopDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2517,11 +2530,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_get_err"))) TS_CResult_RouteHopDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RouteHopDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2542,11 +2555,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_get_ok"))) TS_CResult_RouteDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)(owner & ~1);
        LDKRoute ret_var = CResult_RouteDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2560,11 +2573,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_get_err"))) TS_CResult_RouteDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RouteDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2578,11 +2591,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_get_ok"))) TS_CResult_RouteParametersDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(owner & ~1);
        LDKRouteParameters ret_var = CResult_RouteParametersDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2596,11 +2609,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_get_err"))) TS_CResult_RouteParametersDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RouteParametersDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2621,11 +2634,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_get_ok"))) TS_CResult_PayeeDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PayeeDecodeErrorZ* owner_conv = (LDKCResult_PayeeDecodeErrorZ*)(owner & ~1);
        LDKPayee ret_var = CResult_PayeeDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2639,11 +2652,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_get_err"))) TS_CResult_PayeeDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_PayeeDecodeErrorZ* owner_conv = (LDKCResult_PayeeDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_PayeeDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2664,11 +2677,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_get_ok"))) TS_CResult_RouteHintDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)(owner & ~1);
        LDKRouteHint ret_var = CResult_RouteHintDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2682,11 +2695,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_get_err"))) TS_CResult_RouteHintDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RouteHintDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2700,11 +2713,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_get_ok"))) TS_CResult_RouteHintHopDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(owner & ~1);
        LDKRouteHintHop ret_var = CResult_RouteHintHopDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2718,11 +2731,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_get_err"))) TS_CResult_RouteHintHopDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RouteHintHopDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2743,11 +2756,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_get_ok"))) TS_CResult_RouteLightningErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)(owner & ~1);
        LDKRoute ret_var = CResult_RouteLightningErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2761,11 +2774,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_get_err"))) TS_CResult_RouteLightningErrorZ_get_err(uint32_t owner) {
        LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)(owner & ~1);
        LDKLightningError ret_var = CResult_RouteLightningErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2788,11 +2801,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_get_err"))) TS_CResult_NoneLightningErrorZ_get_err(uint32_t owner) {
        LDKCResult_NoneLightningErrorZ* owner_conv = (LDKCResult_NoneLightningErrorZ*)(owner & ~1);
        LDKLightningError ret_var = CResult_NoneLightningErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -2804,7 +2817,7 @@ static inline struct LDKPublicKey C2Tuple_PublicKeyTypeZ_get_a(LDKC2Tuple_Public
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_get_a"))) TS_C2Tuple_PublicKeyTypeZ_get_a(uint32_t owner) {
        LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_PublicKeyTypeZ_get_a(owner_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -2816,7 +2829,7 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_get_b"))) TS_C2T
        LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)(owner & ~1);
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = C2Tuple_PublicKeyTypeZ_get_b(owner_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 static inline LDKCVec_C2Tuple_PublicKeyTypeZZ CVec_C2Tuple_PublicKeyTypeZZ_clone(const LDKCVec_C2Tuple_PublicKeyTypeZZ *orig) {
@@ -2841,12 +2854,12 @@ uint32_t __attribute__((export_name("TS_LDKErrorAction_DisconnectPeer_get_msg"))
        LDKErrorAction *obj = (LDKErrorAction*)(ptr & ~1);
        assert(obj->tag == LDKErrorAction_DisconnectPeer);
                        LDKErrorMessage msg_var = obj->disconnect_peer.msg;
-                       uint64_t msg_ref = 0;
-                       if ((uint64_t)msg_var.inner > 4096) {
-                               CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       if ((uintptr_t)msg_var.inner > 4096) {
+                               CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                               CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                               msg_ref = (uint64_t)msg_var.inner & ~1;
+                               msg_ref = (uintptr_t)msg_var.inner & ~1;
                        }
        return msg_ref;
 }
@@ -2860,11 +2873,11 @@ uint32_t __attribute__((export_name("TS_LDKErrorAction_SendErrorMessage_get_msg"
        LDKErrorAction *obj = (LDKErrorAction*)(ptr & ~1);
        assert(obj->tag == LDKErrorAction_SendErrorMessage);
                        LDKErrorMessage msg_var = obj->send_error_message.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_ty_from_ptr"))) TS_LDKMessageSendEvent_ty_from_ptr(uint32_t ptr) {
@@ -2895,7 +2908,7 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_ty_from_ptr"))) TS_L
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendAcceptChannel_get_node_id"))) TS_LDKMessageSendEvent_SendAcceptChannel_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendAcceptChannel);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_accept_channel.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2903,17 +2916,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendAcceptChannel_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendAcceptChannel);
                        LDKAcceptChannel msg_var = obj->send_accept_channel.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendOpenChannel_get_node_id"))) TS_LDKMessageSendEvent_SendOpenChannel_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendOpenChannel);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_open_channel.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2921,17 +2934,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendOpenChannel_get_
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendOpenChannel);
                        LDKOpenChannel msg_var = obj->send_open_channel.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingCreated_get_node_id"))) TS_LDKMessageSendEvent_SendFundingCreated_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingCreated);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_funding_created.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2939,17 +2952,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingCreated_g
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingCreated);
                        LDKFundingCreated msg_var = obj->send_funding_created.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingSigned_get_node_id"))) TS_LDKMessageSendEvent_SendFundingSigned_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingSigned);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_funding_signed.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2957,17 +2970,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingSigned_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingSigned);
                        LDKFundingSigned msg_var = obj->send_funding_signed.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingLocked_get_node_id"))) TS_LDKMessageSendEvent_SendFundingLocked_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingLocked);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_funding_locked.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2975,17 +2988,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendFundingLocked_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendFundingLocked);
                        LDKFundingLocked msg_var = obj->send_funding_locked.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendAnnouncementSignatures_get_node_id"))) TS_LDKMessageSendEvent_SendAnnouncementSignatures_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendAnnouncementSignatures);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_announcement_signatures.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -2993,17 +3006,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendAnnouncementSign
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendAnnouncementSignatures);
                        LDKAnnouncementSignatures msg_var = obj->send_announcement_signatures.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_UpdateHTLCs_get_node_id"))) TS_LDKMessageSendEvent_UpdateHTLCs_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_UpdateHTLCs);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->update_htl_cs.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3011,17 +3024,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_UpdateHTLCs_get_upda
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_UpdateHTLCs);
                        LDKCommitmentUpdate updates_var = obj->update_htl_cs.updates;
-                       uint64_t updates_ref = 0;
-                       CHECK((((uint64_t)updates_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&updates_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t updates_ref = 0;
+                       CHECK((((uintptr_t)updates_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&updates_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(updates_var);
-                       updates_ref = (uint64_t)updates_var.inner & ~1;
+                       updates_ref = (uintptr_t)updates_var.inner & ~1;
        return updates_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendRevokeAndACK_get_node_id"))) TS_LDKMessageSendEvent_SendRevokeAndACK_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendRevokeAndACK);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_revoke_and_ack.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3029,17 +3042,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendRevokeAndACK_get
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendRevokeAndACK);
                        LDKRevokeAndACK msg_var = obj->send_revoke_and_ack.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendClosingSigned_get_node_id"))) TS_LDKMessageSendEvent_SendClosingSigned_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendClosingSigned);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_closing_signed.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3047,17 +3060,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendClosingSigned_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendClosingSigned);
                        LDKClosingSigned msg_var = obj->send_closing_signed.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendShutdown_get_node_id"))) TS_LDKMessageSendEvent_SendShutdown_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendShutdown);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_shutdown.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3065,17 +3078,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendShutdown_get_msg
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendShutdown);
                        LDKShutdown msg_var = obj->send_shutdown.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelReestablish_get_node_id"))) TS_LDKMessageSendEvent_SendChannelReestablish_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelReestablish);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_channel_reestablish.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3083,61 +3096,61 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelReestabli
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelReestablish);
                        LDKChannelReestablish msg_var = obj->send_channel_reestablish.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_BroadcastChannelAnnouncement_get_msg"))) TS_LDKMessageSendEvent_BroadcastChannelAnnouncement_get_msg(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_BroadcastChannelAnnouncement);
                        LDKChannelAnnouncement msg_var = obj->broadcast_channel_announcement.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_BroadcastChannelAnnouncement_get_update_msg"))) TS_LDKMessageSendEvent_BroadcastChannelAnnouncement_get_update_msg(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_BroadcastChannelAnnouncement);
                        LDKChannelUpdate update_msg_var = obj->broadcast_channel_announcement.update_msg;
-                       uint64_t update_msg_ref = 0;
-                       CHECK((((uint64_t)update_msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&update_msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t update_msg_ref = 0;
+                       CHECK((((uintptr_t)update_msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&update_msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_msg_var);
-                       update_msg_ref = (uint64_t)update_msg_var.inner & ~1;
+                       update_msg_ref = (uintptr_t)update_msg_var.inner & ~1;
        return update_msg_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_BroadcastNodeAnnouncement_get_msg"))) TS_LDKMessageSendEvent_BroadcastNodeAnnouncement_get_msg(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_BroadcastNodeAnnouncement);
                        LDKNodeAnnouncement msg_var = obj->broadcast_node_announcement.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_BroadcastChannelUpdate_get_msg"))) TS_LDKMessageSendEvent_BroadcastChannelUpdate_get_msg(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_BroadcastChannelUpdate);
                        LDKChannelUpdate msg_var = obj->broadcast_channel_update.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelUpdate_get_node_id"))) TS_LDKMessageSendEvent_SendChannelUpdate_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelUpdate);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_channel_update.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3145,30 +3158,30 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelUpdate_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelUpdate);
                        LDKChannelUpdate msg_var = obj->send_channel_update.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_HandleError_get_node_id"))) TS_LDKMessageSendEvent_HandleError_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_HandleError);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->handle_error.node_id.compressed_form, 33);
        return node_id_arr;
 }
 uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_HandleError_get_action"))) TS_LDKMessageSendEvent_HandleError_get_action(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_HandleError);
-                       uint64_t action_ref = ((uint64_t)&obj->handle_error.action) | 1;
+                       uintptr_t action_ref = ((uintptr_t)&obj->handle_error.action) | 1;
        return action_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelRangeQuery_get_node_id"))) TS_LDKMessageSendEvent_SendChannelRangeQuery_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelRangeQuery);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_channel_range_query.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3176,17 +3189,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendChannelRangeQuer
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendChannelRangeQuery);
                        LDKQueryChannelRange msg_var = obj->send_channel_range_query.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendShortIdsQuery_get_node_id"))) TS_LDKMessageSendEvent_SendShortIdsQuery_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendShortIdsQuery);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_short_ids_query.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3194,17 +3207,17 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendShortIdsQuery_ge
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendShortIdsQuery);
                        LDKQueryShortChannelIds msg_var = obj->send_short_ids_query.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKMessageSendEvent_SendReplyChannelRange_get_node_id"))) TS_LDKMessageSendEvent_SendReplyChannelRange_get_node_id(uint32_t ptr) {
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendReplyChannelRange);
-                       int8_tArray node_id_arr = init_int8_tArray(33);
+                       int8_tArray node_id_arr = init_int8_tArray(33, __LINE__);
                        memcpy(node_id_arr->elems, obj->send_reply_channel_range.node_id.compressed_form, 33);
        return node_id_arr;
 }
@@ -3212,11 +3225,11 @@ uint32_t __attribute__((export_name("TS_LDKMessageSendEvent_SendReplyChannelRang
        LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
        assert(obj->tag == LDKMessageSendEvent_SendReplyChannelRange);
                        LDKReplyChannelRange msg_var = obj->send_reply_channel_range.msg;
-                       uint64_t msg_ref = 0;
-                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t msg_ref = 0;
+                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uint64_t)msg_var.inner & ~1;
+                       msg_ref = (uintptr_t)msg_var.inner & ~1;
        return msg_ref;
 }
 static inline LDKCVec_MessageSendEventZ CVec_MessageSendEventZ_clone(const LDKCVec_MessageSendEventZ *orig) {
@@ -3243,11 +3256,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_get_err"))) TS_CResult_boolLightningErrorZ_get_err(uint32_t owner) {
        LDKCResult_boolLightningErrorZ* owner_conv = (LDKCResult_boolLightningErrorZ*)(owner & ~1);
        LDKLightningError ret_var = CResult_boolLightningErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3260,11 +3273,11 @@ static inline struct LDKChannelAnnouncement C3Tuple_ChannelAnnouncementChannelUp
 uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_a"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_a(uint32_t owner) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
        LDKChannelAnnouncement ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_a(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3277,11 +3290,11 @@ static inline struct LDKChannelUpdate C3Tuple_ChannelAnnouncementChannelUpdateCh
 uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_b"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_b(uint32_t owner) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
        LDKChannelUpdate ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_b(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3294,11 +3307,11 @@ static inline struct LDKChannelUpdate C3Tuple_ChannelAnnouncementChannelUpdateCh
 uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_c"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_c(uint32_t owner) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
        LDKChannelUpdate ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_c(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3326,7 +3339,7 @@ CHECK(owner->result_ok);
 int8_tArray  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_get_ok"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_get_ok(uint32_t owner) {
        LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(owner & ~1);
        LDKCVec_u8Z ret_var = CResult_CVec_u8ZPeerHandleErrorZ_get_ok(owner_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -3339,11 +3352,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_get_err"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_get_err(uint32_t owner) {
        LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(owner & ~1);
        LDKPeerHandleError ret_var = CResult_CVec_u8ZPeerHandleErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3366,11 +3379,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_get_err"))) TS_CResult_NonePeerHandleErrorZ_get_err(uint32_t owner) {
        LDKCResult_NonePeerHandleErrorZ* owner_conv = (LDKCResult_NonePeerHandleErrorZ*)(owner & ~1);
        LDKPeerHandleError ret_var = CResult_NonePeerHandleErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3394,11 +3407,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_get_err"))) TS_CResult_boolPeerHandleErrorZ_get_err(uint32_t owner) {
        LDKCResult_boolPeerHandleErrorZ* owner_conv = (LDKCResult_boolPeerHandleErrorZ*)(owner & ~1);
        LDKPeerHandleError ret_var = CResult_boolPeerHandleErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3413,7 +3426,7 @@ uint32_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_get_ok"))) TS
        LDKCResult_TxOutAccessErrorZ* owner_conv = (LDKCResult_TxOutAccessErrorZ*)(owner & ~1);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = CResult_TxOutAccessErrorZ_get_ok(owner_conv);
-       return (uint64_t)ret_ref;
+       return (uintptr_t)ret_ref;
 }
 
 static inline enum LDKAccessError CResult_TxOutAccessErrorZ_get_err(LDKCResult_TxOutAccessErrorZ *NONNULL_PTR owner){
@@ -3459,7 +3472,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_C2Tuple_usizeTransactionZZ_So
                        LDKC2Tuple_usizeTransactionZ* some_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
                        *some_conv = obj->some;
                        *some_conv = C2Tuple_usizeTransactionZ_clone(some_conv);
-       return ((uint64_t)some_conv);
+       return ((uintptr_t)some_conv);
 }
 uint32_t __attribute__((export_name("TS_LDKCOption_ClosureReasonZ_ty_from_ptr"))) TS_LDKCOption_ClosureReasonZ_ty_from_ptr(uint32_t ptr) {
        LDKCOption_ClosureReasonZ *obj = (LDKCOption_ClosureReasonZ*)(ptr & ~1);
@@ -3472,7 +3485,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_ClosureReasonZ_ty_from_ptr"))
 uint32_t __attribute__((export_name("TS_LDKCOption_ClosureReasonZ_Some_get_some"))) TS_LDKCOption_ClosureReasonZ_Some_get_some(uint32_t ptr) {
        LDKCOption_ClosureReasonZ *obj = (LDKCOption_ClosureReasonZ*)(ptr & ~1);
        assert(obj->tag == LDKCOption_ClosureReasonZ_Some);
-                       uint64_t some_ref = ((uint64_t)&obj->some) | 1;
+                       uintptr_t some_ref = ((uintptr_t)&obj->some) | 1;
        return some_ref;
 }
 static inline struct LDKCOption_ClosureReasonZ CResult_COption_ClosureReasonZDecodeErrorZ_get_ok(LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR owner){
@@ -3483,7 +3496,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErr
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(owner & ~1);
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = CResult_COption_ClosureReasonZDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -3494,11 +3507,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_get_err"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_COption_ClosureReasonZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3516,7 +3529,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_EventZ_ty_from_ptr"))) TS_LDK
 uint32_t __attribute__((export_name("TS_LDKCOption_EventZ_Some_get_some"))) TS_LDKCOption_EventZ_Some_get_some(uint32_t ptr) {
        LDKCOption_EventZ *obj = (LDKCOption_EventZ*)(ptr & ~1);
        assert(obj->tag == LDKCOption_EventZ_Some);
-                       uint64_t some_ref = ((uint64_t)&obj->some) | 1;
+                       uintptr_t some_ref = ((uintptr_t)&obj->some) | 1;
        return some_ref;
 }
 static inline struct LDKCOption_EventZ CResult_COption_EventZDecodeErrorZ_get_ok(LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR owner){
@@ -3527,7 +3540,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_get_
        LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(owner & ~1);
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = CResult_COption_EventZDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -3538,11 +3551,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_get_err"))) TS_CResult_COption_EventZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_COption_EventZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3556,11 +3569,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_get_ok"))) TS_CResult_NodeIdDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)(owner & ~1);
        LDKNodeId ret_var = CResult_NodeIdDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3574,11 +3587,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_get_err"))) TS_CResult_NodeIdDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NodeIdDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3593,7 +3606,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErr
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(owner & ~1);
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = CResult_COption_NetworkUpdateZDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -3604,11 +3617,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_get_err"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_COption_NetworkUpdateZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3627,10 +3640,10 @@ static void LDKAccess_JCalls_free(void* this_arg) {
 }
 LDKCResult_TxOutAccessErrorZ get_utxo_LDKAccess_jcall(const void* this_arg, const uint8_t (* genesis_hash)[32], uint64_t short_channel_id) {
        LDKAccess_JCalls *j_calls = (LDKAccess_JCalls*) this_arg;
-       int8_tArray genesis_hash_arr = init_int8_tArray(32);
+       int8_tArray genesis_hash_arr = init_int8_tArray(32, __LINE__);
        memcpy(genesis_hash_arr->elems, *genesis_hash, 32);
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 17, (uint32_t)genesis_hash_arr, (uint32_t)short_channel_id);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_TxOutAccessErrorZ ret_conv = *(LDKCResult_TxOutAccessErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -3658,16 +3671,16 @@ long  __attribute__((export_name("TS_LDKAccess_new"))) TS_LDKAccess_new(JSValue
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_Access_get_utxo"))) TS_Access_get_utxo(uint32_t this_arg, int8_tArray genesis_hash, int64_t short_channel_id) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKAccess* this_arg_conv = (LDKAccess*)this_arg_ptr;
        unsigned char genesis_hash_arr[32];
        CHECK(genesis_hash->arr_len == 32);
-       memcpy(genesis_hash_arr, genesis_hash->elems, 32);
+       memcpy(genesis_hash_arr, genesis_hash->elems, 32); FREE(genesis_hash);
        unsigned char (*genesis_hash_ref)[32] = &genesis_hash_arr;
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = (this_arg_conv->get_utxo)(this_arg_conv->this_arg, genesis_hash_ref, short_channel_id);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t __attribute__((export_name("TS_LDKCOption_AccessZ_ty_from_ptr"))) TS_LDKCOption_AccessZ_ty_from_ptr(uint32_t ptr) {
@@ -3684,7 +3697,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_AccessZ_Some_get_some"))) TS_
                        LDKAccess* some_ret = MALLOC(sizeof(LDKAccess), "LDKAccess");
                        *some_ret = obj->some;
                        // Warning: We likely need to clone here, but no clone is available, so we just do it for Java instances
-       return (uint64_t)some_ret;
+       return (uintptr_t)some_ret;
 }
 static inline struct LDKDirectionalChannelInfo CResult_DirectionalChannelInfoDecodeErrorZ_get_ok(LDKCResult_DirectionalChannelInfoDecodeErrorZ *NONNULL_PTR owner){
 CHECK(owner->result_ok);
@@ -3693,11 +3706,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_get_ok"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(owner & ~1);
        LDKDirectionalChannelInfo ret_var = CResult_DirectionalChannelInfoDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3711,11 +3724,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_get_err"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_DirectionalChannelInfoDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3729,11 +3742,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_get_ok"))) TS_CResult_ChannelInfoDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(owner & ~1);
        LDKChannelInfo ret_var = CResult_ChannelInfoDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3747,11 +3760,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_get_err"))) TS_CResult_ChannelInfoDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelInfoDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3765,11 +3778,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_get_ok"))) TS_CResult_RoutingFeesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(owner & ~1);
        LDKRoutingFees ret_var = CResult_RoutingFeesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3783,11 +3796,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_get_err"))) TS_CResult_RoutingFeesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RoutingFeesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3807,7 +3820,7 @@ uint32_t __attribute__((export_name("TS_LDKNetAddress_ty_from_ptr"))) TS_LDKNetA
 int8_tArray __attribute__((export_name("TS_LDKNetAddress_IPv4_get_addr"))) TS_LDKNetAddress_IPv4_get_addr(uint32_t ptr) {
        LDKNetAddress *obj = (LDKNetAddress*)(ptr & ~1);
        assert(obj->tag == LDKNetAddress_IPv4);
-                       int8_tArray addr_arr = init_int8_tArray(4);
+                       int8_tArray addr_arr = init_int8_tArray(4, __LINE__);
                        memcpy(addr_arr->elems, obj->i_pv4.addr.data, 4);
        return addr_arr;
 }
@@ -3819,7 +3832,7 @@ int16_t __attribute__((export_name("TS_LDKNetAddress_IPv4_get_port"))) TS_LDKNet
 int8_tArray __attribute__((export_name("TS_LDKNetAddress_IPv6_get_addr"))) TS_LDKNetAddress_IPv6_get_addr(uint32_t ptr) {
        LDKNetAddress *obj = (LDKNetAddress*)(ptr & ~1);
        assert(obj->tag == LDKNetAddress_IPv6);
-                       int8_tArray addr_arr = init_int8_tArray(16);
+                       int8_tArray addr_arr = init_int8_tArray(16, __LINE__);
                        memcpy(addr_arr->elems, obj->i_pv6.addr.data, 16);
        return addr_arr;
 }
@@ -3831,14 +3844,14 @@ int16_t __attribute__((export_name("TS_LDKNetAddress_IPv6_get_port"))) TS_LDKNet
 int8_tArray __attribute__((export_name("TS_LDKNetAddress_OnionV2_get_onion_v2"))) TS_LDKNetAddress_OnionV2_get_onion_v2(uint32_t ptr) {
        LDKNetAddress *obj = (LDKNetAddress*)(ptr & ~1);
        assert(obj->tag == LDKNetAddress_OnionV2);
-                       int8_tArray onion_v2_arr = init_int8_tArray(12);
+                       int8_tArray onion_v2_arr = init_int8_tArray(12, __LINE__);
                        memcpy(onion_v2_arr->elems, obj->onion_v2.data, 12);
        return onion_v2_arr;
 }
 int8_tArray __attribute__((export_name("TS_LDKNetAddress_OnionV3_get_ed25519_pubkey"))) TS_LDKNetAddress_OnionV3_get_ed25519_pubkey(uint32_t ptr) {
        LDKNetAddress *obj = (LDKNetAddress*)(ptr & ~1);
        assert(obj->tag == LDKNetAddress_OnionV3);
-                       int8_tArray ed25519_pubkey_arr = init_int8_tArray(32);
+                       int8_tArray ed25519_pubkey_arr = init_int8_tArray(32, __LINE__);
                        memcpy(ed25519_pubkey_arr->elems, obj->onion_v3.ed25519_pubkey.data, 32);
        return ed25519_pubkey_arr;
 }
@@ -3871,11 +3884,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_get_ok"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(owner & ~1);
        LDKNodeAnnouncementInfo ret_var = CResult_NodeAnnouncementInfoDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3889,11 +3902,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_get_err"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NodeAnnouncementInfoDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3912,11 +3925,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_get_ok"))) TS_CResult_NodeInfoDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(owner & ~1);
        LDKNodeInfo ret_var = CResult_NodeInfoDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3930,11 +3943,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_get_err"))) TS_CResult_NodeInfoDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NodeInfoDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3948,11 +3961,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_get_ok"))) TS_CResult_NetworkGraphDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(owner & ~1);
        LDKNetworkGraph ret_var = CResult_NetworkGraphDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3966,11 +3979,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_get_err"))) TS_CResult_NetworkGraphDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NetworkGraphDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -3990,10 +4003,10 @@ uint32_tArray __attribute__((export_name("TS_LDKCOption_CVec_NetAddressZZ_Some_g
        assert(obj->tag == LDKCOption_CVec_NetAddressZZ_Some);
                        LDKCVec_NetAddressZ some_var = obj->some;
                        uint32_tArray some_arr = NULL;
-                       some_arr = init_uint32_tArray(some_var.datalen);
+                       some_arr = init_uint32_tArray(some_var.datalen, __LINE__);
                        uint32_t *some_arr_ptr = (uint32_t*)(((uint8_t*)some_arr) + 4);
                        for (size_t m = 0; m < some_var.datalen; m++) {
-                               uint64_t some_conv_12_ref = ((uint64_t)&some_var.data[m]) | 1;
+                               uintptr_t some_conv_12_ref = ((uintptr_t)&some_var.data[m]) | 1;
                                some_arr_ptr[m] = some_conv_12_ref;
                        }
                        
@@ -4006,11 +4019,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_get_ok"))) TS_CResult_ScoringParametersDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ScoringParametersDecodeErrorZ* owner_conv = (LDKCResult_ScoringParametersDecodeErrorZ*)(owner & ~1);
        LDKScoringParameters ret_var = *CResult_ScoringParametersDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner & ~1;
+       ret_ref = (uintptr_t)ret_var.inner & ~1;
        return ret_ref;
 }
 
@@ -4021,11 +4034,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_get_err"))) TS_CResult_ScoringParametersDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ScoringParametersDecodeErrorZ* owner_conv = (LDKCResult_ScoringParametersDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ScoringParametersDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4039,11 +4052,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_get_ok"))) TS_CResult_InitFeaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(owner & ~1);
        LDKInitFeatures ret_var = CResult_InitFeaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4057,11 +4070,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_get_err"))) TS_CResult_InitFeaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_InitFeaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4075,11 +4088,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_get_ok"))) TS_CResult_ChannelFeaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(owner & ~1);
        LDKChannelFeatures ret_var = CResult_ChannelFeaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4093,11 +4106,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_get_err"))) TS_CResult_ChannelFeaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelFeaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4111,11 +4124,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_get_ok"))) TS_CResult_NodeFeaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(owner & ~1);
        LDKNodeFeatures ret_var = CResult_NodeFeaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4129,11 +4142,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_get_err"))) TS_CResult_NodeFeaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NodeFeaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4147,11 +4160,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_get_ok"))) TS_CResult_InvoiceFeaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(owner & ~1);
        LDKInvoiceFeatures ret_var = CResult_InvoiceFeaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4165,11 +4178,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_get_err"))) TS_CResult_InvoiceFeaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_InvoiceFeaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4183,11 +4196,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_get_ok"))) TS_CResult_ChannelTypeFeaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(owner & ~1);
        LDKChannelTypeFeatures ret_var = CResult_ChannelTypeFeaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4201,11 +4214,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_get_err"))) TS_CResult_ChannelTypeFeaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelTypeFeaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4220,7 +4233,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_get_ok")
        LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)(owner & ~1);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = CResult_NetAddressDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -4231,11 +4244,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_get_err"))) TS_CResult_NetAddressDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NetAddressDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4277,11 +4290,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_get_ok"))) TS_CResult_AcceptChannelDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(owner & ~1);
        LDKAcceptChannel ret_var = CResult_AcceptChannelDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4295,11 +4308,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_get_err"))) TS_CResult_AcceptChannelDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_AcceptChannelDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4313,11 +4326,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_get_ok"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(owner & ~1);
        LDKAnnouncementSignatures ret_var = CResult_AnnouncementSignaturesDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4331,11 +4344,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_get_err"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_AnnouncementSignaturesDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4349,11 +4362,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_get_ok"))) TS_CResult_ChannelReestablishDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(owner & ~1);
        LDKChannelReestablish ret_var = CResult_ChannelReestablishDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4367,11 +4380,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_get_err"))) TS_CResult_ChannelReestablishDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelReestablishDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4385,11 +4398,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_get_ok"))) TS_CResult_ClosingSignedDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(owner & ~1);
        LDKClosingSigned ret_var = CResult_ClosingSignedDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4403,11 +4416,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_get_err"))) TS_CResult_ClosingSignedDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ClosingSignedDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4421,11 +4434,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_get_ok"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(owner & ~1);
        LDKClosingSignedFeeRange ret_var = CResult_ClosingSignedFeeRangeDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4439,11 +4452,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_get_err"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ClosingSignedFeeRangeDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4457,11 +4470,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_get_ok"))) TS_CResult_CommitmentSignedDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(owner & ~1);
        LDKCommitmentSigned ret_var = CResult_CommitmentSignedDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4475,11 +4488,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_get_err"))) TS_CResult_CommitmentSignedDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_CommitmentSignedDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4493,11 +4506,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_get_ok"))) TS_CResult_FundingCreatedDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(owner & ~1);
        LDKFundingCreated ret_var = CResult_FundingCreatedDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4511,11 +4524,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_get_err"))) TS_CResult_FundingCreatedDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_FundingCreatedDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4529,11 +4542,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_get_ok"))) TS_CResult_FundingSignedDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(owner & ~1);
        LDKFundingSigned ret_var = CResult_FundingSignedDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4547,11 +4560,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_get_err"))) TS_CResult_FundingSignedDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_FundingSignedDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4565,11 +4578,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_get_ok"))) TS_CResult_FundingLockedDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_FundingLockedDecodeErrorZ* owner_conv = (LDKCResult_FundingLockedDecodeErrorZ*)(owner & ~1);
        LDKFundingLocked ret_var = CResult_FundingLockedDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4583,11 +4596,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_get_err"))) TS_CResult_FundingLockedDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_FundingLockedDecodeErrorZ* owner_conv = (LDKCResult_FundingLockedDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_FundingLockedDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4601,11 +4614,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_get_ok"))) TS_CResult_InitDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)(owner & ~1);
        LDKInit ret_var = CResult_InitDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4619,11 +4632,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_get_err"))) TS_CResult_InitDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_InitDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4637,11 +4650,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_get_ok"))) TS_CResult_OpenChannelDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(owner & ~1);
        LDKOpenChannel ret_var = CResult_OpenChannelDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4655,11 +4668,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_get_err"))) TS_CResult_OpenChannelDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_OpenChannelDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4673,11 +4686,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_get_ok"))) TS_CResult_RevokeAndACKDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(owner & ~1);
        LDKRevokeAndACK ret_var = CResult_RevokeAndACKDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4691,11 +4704,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_get_err"))) TS_CResult_RevokeAndACKDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_RevokeAndACKDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4709,11 +4722,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_get_ok"))) TS_CResult_ShutdownDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)(owner & ~1);
        LDKShutdown ret_var = CResult_ShutdownDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4727,11 +4740,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_get_err"))) TS_CResult_ShutdownDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ShutdownDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4745,11 +4758,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_get_ok"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(owner & ~1);
        LDKUpdateFailHTLC ret_var = CResult_UpdateFailHTLCDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4763,11 +4776,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_get_err"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UpdateFailHTLCDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4781,11 +4794,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_ok"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(owner & ~1);
        LDKUpdateFailMalformedHTLC ret_var = CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4799,11 +4812,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_err"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4817,11 +4830,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_get_ok"))) TS_CResult_UpdateFeeDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(owner & ~1);
        LDKUpdateFee ret_var = CResult_UpdateFeeDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4835,11 +4848,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_get_err"))) TS_CResult_UpdateFeeDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UpdateFeeDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4853,11 +4866,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_get_ok"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(owner & ~1);
        LDKUpdateFulfillHTLC ret_var = CResult_UpdateFulfillHTLCDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4871,11 +4884,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_get_err"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UpdateFulfillHTLCDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4889,11 +4902,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_get_ok"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(owner & ~1);
        LDKUpdateAddHTLC ret_var = CResult_UpdateAddHTLCDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4907,11 +4920,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_get_err"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UpdateAddHTLCDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4925,11 +4938,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_get_ok"))) TS_CResult_PingDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)(owner & ~1);
        LDKPing ret_var = CResult_PingDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4943,11 +4956,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_get_err"))) TS_CResult_PingDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_PingDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4961,11 +4974,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_get_ok"))) TS_CResult_PongDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)(owner & ~1);
        LDKPong ret_var = CResult_PongDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4979,11 +4992,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_get_err"))) TS_CResult_PongDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_PongDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -4997,11 +5010,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_ok"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKUnsignedChannelAnnouncement ret_var = CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5015,11 +5028,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_err"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5033,11 +5046,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_get_ok"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKChannelAnnouncement ret_var = CResult_ChannelAnnouncementDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5051,11 +5064,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_get_err"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelAnnouncementDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5069,11 +5082,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_get_ok"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(owner & ~1);
        LDKUnsignedChannelUpdate ret_var = CResult_UnsignedChannelUpdateDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5087,11 +5100,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_get_err"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UnsignedChannelUpdateDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5105,11 +5118,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_get_ok"))) TS_CResult_ChannelUpdateDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(owner & ~1);
        LDKChannelUpdate ret_var = CResult_ChannelUpdateDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5123,11 +5136,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_get_err"))) TS_CResult_ChannelUpdateDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ChannelUpdateDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5141,11 +5154,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_get_ok"))) TS_CResult_ErrorMessageDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(owner & ~1);
        LDKErrorMessage ret_var = CResult_ErrorMessageDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5159,11 +5172,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_get_err"))) TS_CResult_ErrorMessageDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ErrorMessageDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5177,11 +5190,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_ok"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKUnsignedNodeAnnouncement ret_var = CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5195,11 +5208,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_err"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5213,11 +5226,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_get_ok"))) TS_CResult_NodeAnnouncementDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKNodeAnnouncement ret_var = CResult_NodeAnnouncementDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5231,11 +5244,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_get_err"))) TS_CResult_NodeAnnouncementDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_NodeAnnouncementDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5249,11 +5262,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_get_ok"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(owner & ~1);
        LDKQueryShortChannelIds ret_var = CResult_QueryShortChannelIdsDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5267,11 +5280,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_get_err"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_QueryShortChannelIdsDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5285,11 +5298,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_ok"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(owner & ~1);
        LDKReplyShortChannelIdsEnd ret_var = CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5303,11 +5316,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_err"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5321,11 +5334,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_get_ok"))) TS_CResult_QueryChannelRangeDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(owner & ~1);
        LDKQueryChannelRange ret_var = CResult_QueryChannelRangeDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5339,11 +5352,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_get_err"))) TS_CResult_QueryChannelRangeDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_QueryChannelRangeDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5357,11 +5370,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_get_ok"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(owner & ~1);
        LDKReplyChannelRange ret_var = CResult_ReplyChannelRangeDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5375,11 +5388,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_get_err"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_ReplyChannelRangeDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5393,11 +5406,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_get_ok"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(owner & ~1);
        LDKGossipTimestampFilter ret_var = CResult_GossipTimestampFilterDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5411,11 +5424,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_get_err"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_GossipTimestampFilterDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5429,11 +5442,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_ok"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKDelayedPaymentOutputDescriptor ret_var = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5447,11 +5460,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_err"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5465,11 +5478,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_ok"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKStaticPaymentOutputDescriptor ret_var = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5483,11 +5496,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_err"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5502,7 +5515,7 @@ uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecode
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = CResult_SpendableOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -5513,11 +5526,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_get_err"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_SpendableOutputDescriptorDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5532,7 +5545,7 @@ uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_get_ok"))) TS_
        LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)(owner & ~1);
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = CResult_SignDecodeErrorZ_get_ok(owner_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 static inline struct LDKDecodeError CResult_SignDecodeErrorZ_get_err(LDKCResult_SignDecodeErrorZ *NONNULL_PTR owner){
@@ -5542,11 +5555,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_get_err"))) TS_CResult_SignDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_SignDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5559,7 +5572,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_get_ok"))) TS_CResult_RecoverableSignatureNoneZ_get_ok(uint32_t owner) {
        LDKCResult_RecoverableSignatureNoneZ* owner_conv = (LDKCResult_RecoverableSignatureNoneZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(68);
+       int8_tArray ret_arr = init_int8_tArray(68, __LINE__);
        memcpy(ret_arr->elems, CResult_RecoverableSignatureNoneZ_get_ok(owner_conv).serialized_form, 68);
        return ret_arr;
 }
@@ -5588,11 +5601,11 @@ ptrArray  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_get_ok")))
        LDKCResult_CVec_CVec_u8ZZNoneZ* owner_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(owner & ~1);
        LDKCVec_CVec_u8ZZ ret_var = CResult_CVec_CVec_u8ZZNoneZ_get_ok(owner_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
                LDKCVec_u8Z ret_conv_12_var = ret_var.data[m];
-               int8_tArray ret_conv_12_arr = init_int8_tArray(ret_conv_12_var.datalen);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(ret_conv_12_var.datalen, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_conv_12_var.data, ret_conv_12_var.datalen);
                CVec_u8Z_free(ret_conv_12_var);
                ret_arr_ptr[m] = ret_conv_12_arr;
@@ -5618,11 +5631,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_get_ok"))) TS_CResult_InMemorySignerDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(owner & ~1);
        LDKInMemorySigner ret_var = CResult_InMemorySignerDecodeErrorZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5636,11 +5649,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_get_err"))) TS_CResult_InMemorySignerDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_InMemorySignerDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -5661,7 +5674,7 @@ CHECK(owner->result_ok);
 int8_tArray  __attribute__((export_name("TS_CResult_TransactionNoneZ_get_ok"))) TS_CResult_TransactionNoneZ_get_ok(uint32_t owner) {
        LDKCResult_TransactionNoneZ* owner_conv = (LDKCResult_TransactionNoneZ*)(owner & ~1);
        LDKTransaction ret_var = CResult_TransactionNoneZ_get_ok(owner_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -5687,26 +5700,26 @@ static void LDKFilter_JCalls_free(void* this_arg) {
 }
 void register_tx_LDKFilter_jcall(const void* this_arg, const uint8_t (* txid)[32], LDKu8slice script_pubkey) {
        LDKFilter_JCalls *j_calls = (LDKFilter_JCalls*) this_arg;
-       int8_tArray txid_arr = init_int8_tArray(32);
+       int8_tArray txid_arr = init_int8_tArray(32, __LINE__);
        memcpy(txid_arr->elems, *txid, 32);
        LDKu8slice script_pubkey_var = script_pubkey;
-       int8_tArray script_pubkey_arr = init_int8_tArray(script_pubkey_var.datalen);
+       int8_tArray script_pubkey_arr = init_int8_tArray(script_pubkey_var.datalen, __LINE__);
        memcpy(script_pubkey_arr->elems, script_pubkey_var.data, script_pubkey_var.datalen);
        js_invoke_function_2(j_calls->instance_ptr, 18, (uint32_t)txid_arr, (uint32_t)script_pubkey_arr);
 }
 LDKCOption_C2Tuple_usizeTransactionZZ register_output_LDKFilter_jcall(const void* this_arg, LDKWatchedOutput output) {
        LDKFilter_JCalls *j_calls = (LDKFilter_JCalls*) this_arg;
        LDKWatchedOutput output_var = output;
-       uint64_t output_ref = 0;
-       CHECK((((uint64_t)output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t output_ref = 0;
+       CHECK((((uintptr_t)output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(output_var);
-       output_ref = (uint64_t)output_var.inner;
+       output_ref = (uintptr_t)output_var.inner;
        if (output_var.is_owned) {
                output_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 19, (uint32_t)output_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCOption_C2Tuple_usizeTransactionZZ ret_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(ret_ptr);
        FREE((void*)ret);
@@ -5735,21 +5748,21 @@ long  __attribute__((export_name("TS_LDKFilter_new"))) TS_LDKFilter_new(JSValue
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_Filter_register_tx"))) TS_Filter_register_tx(uint32_t this_arg, int8_tArray txid, int8_tArray script_pubkey) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFilter* this_arg_conv = (LDKFilter*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK(txid->arr_len == 32);
-       memcpy(txid_arr, txid->elems, 32);
+       memcpy(txid_arr, txid->elems, 32); FREE(txid);
        unsigned char (*txid_ref)[32] = &txid_arr;
        LDKu8slice script_pubkey_ref;
        script_pubkey_ref.datalen = script_pubkey->arr_len;
-       script_pubkey_ref.data = script_pubkey->elems;
+       script_pubkey_ref.data = script_pubkey->elems /* XXX script_pubkey leaks */;
        (this_arg_conv->register_tx)(this_arg_conv->this_arg, txid_ref, script_pubkey_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_Filter_register_output"))) TS_Filter_register_output(uint32_t this_arg, uint32_t output) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFilter* this_arg_conv = (LDKFilter*)this_arg_ptr;
        LDKWatchedOutput output_conv;
@@ -5759,7 +5772,7 @@ uint32_t  __attribute__((export_name("TS_Filter_register_output"))) TS_Filter_re
        output_conv = WatchedOutput_clone(&output_conv);
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = (this_arg_conv->register_output)(this_arg_conv->this_arg, output_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -5777,7 +5790,7 @@ uint32_t __attribute__((export_name("TS_LDKCOption_FilterZ_Some_get_some"))) TS_
                        LDKFilter* some_ret = MALLOC(sizeof(LDKFilter), "LDKFilter");
                        *some_ret = obj->some;
                        // Warning: We likely need to clone here, but no clone is available, so we just do it for Java instances
-       return (uint64_t)some_ret;
+       return (uintptr_t)some_ret;
 }
 static inline struct LDKLockedChannelMonitor *CResult_LockedChannelMonitorNoneZ_get_ok(LDKCResult_LockedChannelMonitorNoneZ *NONNULL_PTR owner){
 CHECK(owner->result_ok);
@@ -5786,11 +5799,11 @@ CHECK(owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_get_ok"))) TS_CResult_LockedChannelMonitorNoneZ_get_ok(uint32_t owner) {
        LDKCResult_LockedChannelMonitorNoneZ* owner_conv = (LDKCResult_LockedChannelMonitorNoneZ*)(owner & ~1);
        LDKLockedChannelMonitor ret_var = *CResult_LockedChannelMonitorNoneZ_get_ok(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner & ~1;
+       ret_ref = (uintptr_t)ret_var.inner & ~1;
        return ret_ref;
 }
 
@@ -5859,11 +5872,11 @@ uint32_t __attribute__((export_name("TS_LDKAPIError_IncompatibleShutdownScript_g
        LDKAPIError *obj = (LDKAPIError*)(ptr & ~1);
        assert(obj->tag == LDKAPIError_IncompatibleShutdownScript);
                        LDKShutdownScript script_var = obj->incompatible_shutdown_script.script;
-                       uint64_t script_ref = 0;
-                       CHECK((((uint64_t)script_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&script_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t script_ref = 0;
+                       CHECK((((uintptr_t)script_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&script_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(script_var);
-                       script_ref = (uint64_t)script_var.inner & ~1;
+                       script_ref = (uintptr_t)script_var.inner & ~1;
        return script_ref;
 }
 static inline void CResult_NoneAPIErrorZ_get_ok(LDKCResult_NoneAPIErrorZ *NONNULL_PTR owner){
@@ -5883,7 +5896,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_get_err"))) TS_CR
        LDKCResult_NoneAPIErrorZ* owner_conv = (LDKCResult_NoneAPIErrorZ*)(owner & ~1);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_NoneAPIErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -5920,7 +5933,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult__u832APIErrorZ_get_ok"))) TS_CResult__u832APIErrorZ_get_ok(uint32_t owner) {
        LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult__u832APIErrorZ_get_ok(owner_conv).data, 32);
        return ret_arr;
 }
@@ -5933,7 +5946,7 @@ uint32_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_get_err"))) TS_C
        LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)(owner & ~1);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult__u832APIErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -5950,7 +5963,7 @@ uint32_t __attribute__((export_name("TS_LDKPaymentSendFailure_ty_from_ptr"))) TS
 uint32_t __attribute__((export_name("TS_LDKPaymentSendFailure_ParameterError_get_parameter_error"))) TS_LDKPaymentSendFailure_ParameterError_get_parameter_error(uint32_t ptr) {
        LDKPaymentSendFailure *obj = (LDKPaymentSendFailure*)(ptr & ~1);
        assert(obj->tag == LDKPaymentSendFailure_ParameterError);
-                       uint64_t parameter_error_ref = ((uint64_t)&obj->parameter_error) | 1;
+                       uintptr_t parameter_error_ref = ((uintptr_t)&obj->parameter_error) | 1;
        return parameter_error_ref;
 }
 uint32_tArray __attribute__((export_name("TS_LDKPaymentSendFailure_PathParameterError_get_path_parameter_error"))) TS_LDKPaymentSendFailure_PathParameterError_get_path_parameter_error(uint32_t ptr) {
@@ -5958,13 +5971,13 @@ uint32_tArray __attribute__((export_name("TS_LDKPaymentSendFailure_PathParameter
        assert(obj->tag == LDKPaymentSendFailure_PathParameterError);
                        LDKCVec_CResult_NoneAPIErrorZZ path_parameter_error_var = obj->path_parameter_error;
                        uint32_tArray path_parameter_error_arr = NULL;
-                       path_parameter_error_arr = init_uint32_tArray(path_parameter_error_var.datalen);
+                       path_parameter_error_arr = init_uint32_tArray(path_parameter_error_var.datalen, __LINE__);
                        uint32_t *path_parameter_error_arr_ptr = (uint32_t*)(((uint8_t*)path_parameter_error_arr) + 4);
                        for (size_t w = 0; w < path_parameter_error_var.datalen; w++) {
                                LDKCResult_NoneAPIErrorZ* path_parameter_error_conv_22_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
                                *path_parameter_error_conv_22_conv = path_parameter_error_var.data[w];
                                *path_parameter_error_conv_22_conv = CResult_NoneAPIErrorZ_clone(path_parameter_error_conv_22_conv);
-                               path_parameter_error_arr_ptr[w] = (uint64_t)path_parameter_error_conv_22_conv;
+                               path_parameter_error_arr_ptr[w] = (uintptr_t)path_parameter_error_conv_22_conv;
                        }
                        
        return path_parameter_error_arr;
@@ -5974,10 +5987,10 @@ uint32_tArray __attribute__((export_name("TS_LDKPaymentSendFailure_AllFailedRetr
        assert(obj->tag == LDKPaymentSendFailure_AllFailedRetrySafe);
                        LDKCVec_APIErrorZ all_failed_retry_safe_var = obj->all_failed_retry_safe;
                        uint32_tArray all_failed_retry_safe_arr = NULL;
-                       all_failed_retry_safe_arr = init_uint32_tArray(all_failed_retry_safe_var.datalen);
+                       all_failed_retry_safe_arr = init_uint32_tArray(all_failed_retry_safe_var.datalen, __LINE__);
                        uint32_t *all_failed_retry_safe_arr_ptr = (uint32_t*)(((uint8_t*)all_failed_retry_safe_arr) + 4);
                        for (size_t k = 0; k < all_failed_retry_safe_var.datalen; k++) {
-                               uint64_t all_failed_retry_safe_conv_10_ref = ((uint64_t)&all_failed_retry_safe_var.data[k]) | 1;
+                               uintptr_t all_failed_retry_safe_conv_10_ref = ((uintptr_t)&all_failed_retry_safe_var.data[k]) | 1;
                                all_failed_retry_safe_arr_ptr[k] = all_failed_retry_safe_conv_10_ref;
                        }
                        
@@ -5988,13 +6001,13 @@ uint32_tArray __attribute__((export_name("TS_LDKPaymentSendFailure_PartialFailur
        assert(obj->tag == LDKPaymentSendFailure_PartialFailure);
                        LDKCVec_CResult_NoneAPIErrorZZ results_var = obj->partial_failure.results;
                        uint32_tArray results_arr = NULL;
-                       results_arr = init_uint32_tArray(results_var.datalen);
+                       results_arr = init_uint32_tArray(results_var.datalen, __LINE__);
                        uint32_t *results_arr_ptr = (uint32_t*)(((uint8_t*)results_arr) + 4);
                        for (size_t w = 0; w < results_var.datalen; w++) {
                                LDKCResult_NoneAPIErrorZ* results_conv_22_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
                                *results_conv_22_conv = results_var.data[w];
                                *results_conv_22_conv = CResult_NoneAPIErrorZ_clone(results_conv_22_conv);
-                               results_arr_ptr[w] = (uint64_t)results_conv_22_conv;
+                               results_arr_ptr[w] = (uintptr_t)results_conv_22_conv;
                        }
                        
        return results_arr;
@@ -6003,19 +6016,19 @@ uint32_t __attribute__((export_name("TS_LDKPaymentSendFailure_PartialFailure_get
        LDKPaymentSendFailure *obj = (LDKPaymentSendFailure*)(ptr & ~1);
        assert(obj->tag == LDKPaymentSendFailure_PartialFailure);
                        LDKRouteParameters failed_paths_retry_var = obj->partial_failure.failed_paths_retry;
-                       uint64_t failed_paths_retry_ref = 0;
-                       if ((uint64_t)failed_paths_retry_var.inner > 4096) {
-                               CHECK((((uint64_t)failed_paths_retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uint64_t)&failed_paths_retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t failed_paths_retry_ref = 0;
+                       if ((uintptr_t)failed_paths_retry_var.inner > 4096) {
+                               CHECK((((uintptr_t)failed_paths_retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                               CHECK((((uintptr_t)&failed_paths_retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(failed_paths_retry_var);
-                               failed_paths_retry_ref = (uint64_t)failed_paths_retry_var.inner & ~1;
+                               failed_paths_retry_ref = (uintptr_t)failed_paths_retry_var.inner & ~1;
                        }
        return failed_paths_retry_ref;
 }
 int8_tArray __attribute__((export_name("TS_LDKPaymentSendFailure_PartialFailure_get_payment_id"))) TS_LDKPaymentSendFailure_PartialFailure_get_payment_id(uint32_t ptr) {
        LDKPaymentSendFailure *obj = (LDKPaymentSendFailure*)(ptr & ~1);
        assert(obj->tag == LDKPaymentSendFailure_PartialFailure);
-                       int8_tArray payment_id_arr = init_int8_tArray(32);
+                       int8_tArray payment_id_arr = init_int8_tArray(32, __LINE__);
                        memcpy(payment_id_arr->elems, obj->partial_failure.payment_id.data, 32);
        return payment_id_arr;
 }
@@ -6025,7 +6038,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_get_ok"))) TS_CResult_PaymentIdPaymentSendFailureZ_get_ok(uint32_t owner) {
        LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult_PaymentIdPaymentSendFailureZ_get_ok(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6038,7 +6051,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_ge
        LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(owner & ~1);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_PaymentIdPaymentSendFailureZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6059,7 +6072,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_get_err
        LDKCResult_NonePaymentSendFailureZ* owner_conv = (LDKCResult_NonePaymentSendFailureZ*)(owner & ~1);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_NonePaymentSendFailureZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6068,7 +6081,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentIdZ_get_a(LDKC2
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_get_a"))) TS_C2Tuple_PaymentHashPaymentIdZ_get_a(uint32_t owner) {
        LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_PaymentHashPaymentIdZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6078,7 +6091,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentIdZ_get_b(LDKC2
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_get_b"))) TS_C2Tuple_PaymentHashPaymentIdZ_get_b(uint32_t owner) {
        LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_PaymentHashPaymentIdZ_get_b(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6091,7 +6104,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPa
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(owner & ~1);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_ok(owner_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 static inline struct LDKPaymentSendFailure CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR owner){
@@ -6102,7 +6115,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPa
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(owner & ~1);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6111,7 +6124,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentSecretZ_get_a(L
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_get_a"))) TS_C2Tuple_PaymentHashPaymentSecretZ_get_a(uint32_t owner) {
        LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_PaymentHashPaymentSecretZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6121,7 +6134,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentSecretZ_get_b(L
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_get_b"))) TS_C2Tuple_PaymentHashPaymentSecretZ_get_b(uint32_t owner) {
        LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_PaymentHashPaymentSecretZ_get_b(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6134,7 +6147,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(owner & ~1);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_ok(owner_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 static inline void CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR owner){
@@ -6154,7 +6167,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(owner & ~1);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_ok(owner_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 static inline struct LDKAPIError CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR owner){
@@ -6165,7 +6178,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(owner & ~1);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6175,7 +6188,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_get_ok"))) TS_CResult_PaymentSecretNoneZ_get_ok(uint32_t owner) {
        LDKCResult_PaymentSecretNoneZ* owner_conv = (LDKCResult_PaymentSecretNoneZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult_PaymentSecretNoneZ_get_ok(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6195,7 +6208,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_get_ok"))) TS_CResult_PaymentSecretAPIErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult_PaymentSecretAPIErrorZ_get_ok(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6208,7 +6221,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_get_err"
        LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(owner & ~1);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_PaymentSecretAPIErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6218,7 +6231,7 @@ CHECK(owner->result_ok);
 }
 int8_tArray  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_get_ok"))) TS_CResult_PaymentPreimageAPIErrorZ_get_ok(uint32_t owner) {
        LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, CResult_PaymentPreimageAPIErrorZ_get_ok(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6231,7 +6244,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_get_er
        LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(owner & ~1);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_PaymentPreimageAPIErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -6255,25 +6268,25 @@ static void LDKWatch_JCalls_free(void* this_arg) {
 LDKCResult_NoneChannelMonitorUpdateErrZ watch_channel_LDKWatch_jcall(const void* this_arg, LDKOutPoint funding_txo, LDKChannelMonitor monitor) {
        LDKWatch_JCalls *j_calls = (LDKWatch_JCalls*) this_arg;
        LDKOutPoint funding_txo_var = funding_txo;
-       uint64_t funding_txo_ref = 0;
-       CHECK((((uint64_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t funding_txo_ref = 0;
+       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-       funding_txo_ref = (uint64_t)funding_txo_var.inner;
+       funding_txo_ref = (uintptr_t)funding_txo_var.inner;
        if (funding_txo_var.is_owned) {
                funding_txo_ref |= 1;
        }
        LDKChannelMonitor monitor_var = monitor;
-       uint64_t monitor_ref = 0;
-       CHECK((((uint64_t)monitor_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&monitor_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t monitor_ref = 0;
+       CHECK((((uintptr_t)monitor_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&monitor_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(monitor_var);
-       monitor_ref = (uint64_t)monitor_var.inner;
+       monitor_ref = (uintptr_t)monitor_var.inner;
        if (monitor_var.is_owned) {
                monitor_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 20, (uint32_t)funding_txo_ref, (uint32_t)monitor_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        FREE((void*)ret);
@@ -6282,25 +6295,25 @@ LDKCResult_NoneChannelMonitorUpdateErrZ watch_channel_LDKWatch_jcall(const void*
 LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_LDKWatch_jcall(const void* this_arg, LDKOutPoint funding_txo, LDKChannelMonitorUpdate update) {
        LDKWatch_JCalls *j_calls = (LDKWatch_JCalls*) this_arg;
        LDKOutPoint funding_txo_var = funding_txo;
-       uint64_t funding_txo_ref = 0;
-       CHECK((((uint64_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t funding_txo_ref = 0;
+       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-       funding_txo_ref = (uint64_t)funding_txo_var.inner;
+       funding_txo_ref = (uintptr_t)funding_txo_var.inner;
        if (funding_txo_var.is_owned) {
                funding_txo_ref |= 1;
        }
        LDKChannelMonitorUpdate update_var = update;
-       uint64_t update_ref = 0;
-       CHECK((((uint64_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t update_ref = 0;
+       CHECK((((uintptr_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_var);
-       update_ref = (uint64_t)update_var.inner;
+       update_ref = (uintptr_t)update_var.inner;
        if (update_var.is_owned) {
                update_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 21, (uint32_t)funding_txo_ref, (uint32_t)update_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        FREE((void*)ret);
@@ -6315,10 +6328,10 @@ LDKCVec_MonitorEventZ release_pending_monitor_events_LDKWatch_jcall(const void*
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKMonitorEvent), "LDKCVec_MonitorEventZ Elements");
        else
                ret_constr.data = NULL;
-       uint32_t* ret_vals = ret->elems;
+       uint32_t* ret_vals = ret->elems /* XXX ret leaks */;
        for (size_t o = 0; o < ret_constr.datalen; o++) {
                uint32_t ret_conv_14 = ret_vals[o];
-               void* ret_conv_14_ptr = (void*)(((uint64_t)ret_conv_14) & ~1);
+               void* ret_conv_14_ptr = (void*)(((uintptr_t)ret_conv_14) & ~1);
                CHECK_ACCESS(ret_conv_14_ptr);
                LDKMonitorEvent ret_conv_14_conv = *(LDKMonitorEvent*)(ret_conv_14_ptr);
                FREE((void*)ret_conv_14);
@@ -6350,7 +6363,7 @@ long  __attribute__((export_name("TS_LDKWatch_new"))) TS_LDKWatch_new(JSValue o)
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_Watch_watch_channel"))) TS_Watch_watch_channel(uint32_t this_arg, uint32_t funding_txo, uint32_t monitor) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKOutPoint funding_txo_conv;
@@ -6365,11 +6378,11 @@ uint32_t  __attribute__((export_name("TS_Watch_watch_channel"))) TS_Watch_watch_
        monitor_conv = ChannelMonitor_clone(&monitor_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->watch_channel)(this_arg_conv->this_arg, funding_txo_conv, monitor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_Watch_update_channel"))) TS_Watch_update_channel(uint32_t this_arg, uint32_t funding_txo, uint32_t update) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKOutPoint funding_txo_conv;
@@ -6384,21 +6397,21 @@ uint32_t  __attribute__((export_name("TS_Watch_update_channel"))) TS_Watch_updat
        update_conv = ChannelMonitorUpdate_clone(&update_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->update_channel)(this_arg_conv->this_arg, funding_txo_conv, update_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_tArray  __attribute__((export_name("TS_Watch_release_pending_monitor_events"))) TS_Watch_release_pending_monitor_events(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKCVec_MonitorEventZ ret_var = (this_arg_conv->release_pending_monitor_events)(this_arg_conv->this_arg);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
                *ret_conv_14_copy = ret_var.data[o];
-               uint64_t ret_conv_14_ref = (uint64_t)ret_conv_14_copy;
+               uintptr_t ret_conv_14_ref = (uintptr_t)ret_conv_14_copy;
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        
@@ -6419,7 +6432,7 @@ static void LDKBroadcasterInterface_JCalls_free(void* this_arg) {
 void broadcast_transaction_LDKBroadcasterInterface_jcall(const void* this_arg, LDKTransaction tx) {
        LDKBroadcasterInterface_JCalls *j_calls = (LDKBroadcasterInterface_JCalls*) this_arg;
        LDKTransaction tx_var = tx;
-       int8_tArray tx_arr = init_int8_tArray(tx_var.datalen);
+       int8_tArray tx_arr = init_int8_tArray(tx_var.datalen, __LINE__);
        memcpy(tx_arr->elems, tx_var.data, tx_var.datalen);
        Transaction_free(tx_var);
        js_invoke_function_1(j_calls->instance_ptr, 23, (uint32_t)tx_arr);
@@ -6446,13 +6459,13 @@ long  __attribute__((export_name("TS_LDKBroadcasterInterface_new"))) TS_LDKBroad
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_BroadcasterInterface_broadcast_transaction"))) TS_BroadcasterInterface_broadcast_transaction(uint32_t this_arg, int8_tArray tx) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBroadcasterInterface* this_arg_conv = (LDKBroadcasterInterface*)this_arg_ptr;
        LDKTransaction tx_ref;
        tx_ref.datalen = tx->arr_len;
        tx_ref.data = MALLOC(tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(tx_ref.data, tx->elems, tx_ref.datalen);
+       memcpy(tx_ref.data, tx->elems, tx_ref.datalen); FREE(tx);
        tx_ref.data_is_owned = true;
        (this_arg_conv->broadcast_transaction)(this_arg_conv->this_arg, tx_ref);
 }
@@ -6472,7 +6485,7 @@ LDKSecretKey get_node_secret_LDKKeysInterface_jcall(const void* this_arg) {
        int8_tArray ret = (int8_tArray)js_invoke_function_0(j_calls->instance_ptr, 24);
        LDKSecretKey ret_ref;
        CHECK(ret->arr_len == 32);
-       memcpy(ret_ref.bytes, ret->elems, 32);
+       memcpy(ret_ref.bytes, ret->elems, 32); FREE(ret);
        return ret_ref;
 }
 LDKCVec_u8Z get_destination_script_LDKKeysInterface_jcall(const void* this_arg) {
@@ -6481,7 +6494,7 @@ LDKCVec_u8Z get_destination_script_LDKKeysInterface_jcall(const void* this_arg)
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = ret->arr_len;
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(ret_ref.data, ret->elems, ret_ref.datalen);
+       memcpy(ret_ref.data, ret->elems, ret_ref.datalen); FREE(ret);
        return ret_ref;
 }
 LDKShutdownScript get_shutdown_scriptpubkey_LDKKeysInterface_jcall(const void* this_arg) {
@@ -6496,7 +6509,7 @@ LDKShutdownScript get_shutdown_scriptpubkey_LDKKeysInterface_jcall(const void* t
 LDKSign get_channel_signer_LDKKeysInterface_jcall(const void* this_arg, bool inbound, uint64_t channel_value_satoshis) {
        LDKKeysInterface_JCalls *j_calls = (LDKKeysInterface_JCalls*) this_arg;
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 27, (uint32_t)inbound, (uint32_t)channel_value_satoshis);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKSign ret_conv = *(LDKSign*)(ret_ptr);
        FREE((void*)ret);
@@ -6507,16 +6520,16 @@ LDKThirtyTwoBytes get_secure_random_bytes_LDKKeysInterface_jcall(const void* thi
        int8_tArray ret = (int8_tArray)js_invoke_function_0(j_calls->instance_ptr, 28);
        LDKThirtyTwoBytes ret_ref;
        CHECK(ret->arr_len == 32);
-       memcpy(ret_ref.data, ret->elems, 32);
+       memcpy(ret_ref.data, ret->elems, 32); FREE(ret);
        return ret_ref;
 }
 LDKCResult_SignDecodeErrorZ read_chan_signer_LDKKeysInterface_jcall(const void* this_arg, LDKu8slice reader) {
        LDKKeysInterface_JCalls *j_calls = (LDKKeysInterface_JCalls*) this_arg;
        LDKu8slice reader_var = reader;
-       int8_tArray reader_arr = init_int8_tArray(reader_var.datalen);
+       int8_tArray reader_arr = init_int8_tArray(reader_var.datalen, __LINE__);
        memcpy(reader_arr->elems, reader_var.data, reader_var.datalen);
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 29, (uint32_t)reader_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignDecodeErrorZ ret_conv = *(LDKCResult_SignDecodeErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -6525,11 +6538,11 @@ LDKCResult_SignDecodeErrorZ read_chan_signer_LDKKeysInterface_jcall(const void*
 LDKCResult_RecoverableSignatureNoneZ sign_invoice_LDKKeysInterface_jcall(const void* this_arg, LDKCVec_u8Z invoice_preimage) {
        LDKKeysInterface_JCalls *j_calls = (LDKKeysInterface_JCalls*) this_arg;
        LDKCVec_u8Z invoice_preimage_var = invoice_preimage;
-       int8_tArray invoice_preimage_arr = init_int8_tArray(invoice_preimage_var.datalen);
+       int8_tArray invoice_preimage_arr = init_int8_tArray(invoice_preimage_var.datalen, __LINE__);
        memcpy(invoice_preimage_arr->elems, invoice_preimage_var.data, invoice_preimage_var.datalen);
        CVec_u8Z_free(invoice_preimage_var);
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 30, (uint32_t)invoice_preimage_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_RecoverableSignatureNoneZ ret_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(ret_ptr);
        FREE((void*)ret);
@@ -6540,7 +6553,7 @@ LDKThirtyTwoBytes get_inbound_payment_key_material_LDKKeysInterface_jcall(const
        int8_tArray ret = (int8_tArray)js_invoke_function_0(j_calls->instance_ptr, 31);
        LDKThirtyTwoBytes ret_ref;
        CHECK(ret->arr_len == 32);
-       memcpy(ret_ref.data, ret->elems, 32);
+       memcpy(ret_ref.data, ret->elems, 32); FREE(ret);
        return ret_ref;
 }
 static void LDKKeysInterface_JCalls_cloned(LDKKeysInterface* new_obj) {
@@ -6572,35 +6585,35 @@ long  __attribute__((export_name("TS_LDKKeysInterface_new"))) TS_LDKKeysInterfac
        return (long)res_ptr;
 }
 int8_tArray  __attribute__((export_name("TS_KeysInterface_get_node_secret"))) TS_KeysInterface_get_node_secret(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->get_node_secret)(this_arg_conv->this_arg).bytes, 32);
        return ret_arr;
 }
 
 int8_tArray  __attribute__((export_name("TS_KeysInterface_get_destination_script"))) TS_KeysInterface_get_destination_script(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->get_destination_script)(this_arg_conv->this_arg);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
 }
 
 uint32_t  __attribute__((export_name("TS_KeysInterface_get_shutdown_scriptpubkey"))) TS_KeysInterface_get_shutdown_scriptpubkey(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKShutdownScript ret_var = (this_arg_conv->get_shutdown_scriptpubkey)(this_arg_conv->this_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -6608,53 +6621,53 @@ uint32_t  __attribute__((export_name("TS_KeysInterface_get_shutdown_scriptpubkey
 }
 
 uint32_t  __attribute__((export_name("TS_KeysInterface_get_channel_signer"))) TS_KeysInterface_get_channel_signer(uint32_t this_arg, jboolean inbound, int64_t channel_value_satoshis) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = (this_arg_conv->get_channel_signer)(this_arg_conv->this_arg, inbound, channel_value_satoshis);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 int8_tArray  __attribute__((export_name("TS_KeysInterface_get_secure_random_bytes"))) TS_KeysInterface_get_secure_random_bytes(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->get_secure_random_bytes)(this_arg_conv->this_arg).data, 32);
        return ret_arr;
 }
 
 uint32_t  __attribute__((export_name("TS_KeysInterface_read_chan_signer"))) TS_KeysInterface_read_chan_signer(uint32_t this_arg, int8_tArray reader) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKu8slice reader_ref;
        reader_ref.datalen = reader->arr_len;
-       reader_ref.data = reader->elems;
+       reader_ref.data = reader->elems /* XXX reader leaks */;
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = (this_arg_conv->read_chan_signer)(this_arg_conv->this_arg, reader_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_KeysInterface_sign_invoice"))) TS_KeysInterface_sign_invoice(uint32_t this_arg, int8_tArray invoice_preimage) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKCVec_u8Z invoice_preimage_ref;
        invoice_preimage_ref.datalen = invoice_preimage->arr_len;
        invoice_preimage_ref.data = MALLOC(invoice_preimage_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(invoice_preimage_ref.data, invoice_preimage->elems, invoice_preimage_ref.datalen);
+       memcpy(invoice_preimage_ref.data, invoice_preimage->elems, invoice_preimage_ref.datalen); FREE(invoice_preimage);
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_invoice)(this_arg_conv->this_arg, invoice_preimage_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_KeysInterface_get_inbound_payment_key_material"))) TS_KeysInterface_get_inbound_payment_key_material(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, (this_arg_conv->get_inbound_payment_key_material)(this_arg_conv->this_arg).data, 32);
        return ret_arr;
 }
@@ -6696,7 +6709,7 @@ long  __attribute__((export_name("TS_LDKFeeEstimator_new"))) TS_LDKFeeEstimator_
        return (long)res_ptr;
 }
 int32_t  __attribute__((export_name("TS_FeeEstimator_get_est_sat_per_1000_weight"))) TS_FeeEstimator_get_est_sat_per_1000_weight(uint32_t this_arg, uint32_t confirmation_target) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFeeEstimator* this_arg_conv = (LDKFeeEstimator*)this_arg_ptr;
        LDKConfirmationTarget confirmation_target_conv = LDKConfirmationTarget_from_js(confirmation_target);
@@ -6717,12 +6730,12 @@ static void LDKLogger_JCalls_free(void* this_arg) {
 void log_LDKLogger_jcall(const void* this_arg, const LDKRecord * record) {
        LDKLogger_JCalls *j_calls = (LDKLogger_JCalls*) this_arg;
        LDKRecord record_var = *record;
-       uint64_t record_ref = 0;
+       uintptr_t record_ref = 0;
        record_var = Record_clone(record);
-       CHECK((((uint64_t)record_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&record_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)record_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&record_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(record_var);
-       record_ref = (uint64_t)record_var.inner;
+       record_ref = (uintptr_t)record_var.inner;
        if (record_var.is_owned) {
                record_ref |= 1;
        }
@@ -6754,7 +6767,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelManagerZ_get_a(LD
 }
 int8_tArray  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_get_a"))) TS_C2Tuple_BlockHashChannelManagerZ_get_a(uint32_t owner) {
        LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)(owner & ~1);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, C2Tuple_BlockHashChannelManagerZ_get_a(owner_conv).data, 32);
        return ret_arr;
 }
@@ -6765,11 +6778,11 @@ static inline struct LDKChannelManager *C2Tuple_BlockHashChannelManagerZ_get_b(L
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_get_b"))) TS_C2Tuple_BlockHashChannelManagerZ_get_b(uint32_t owner) {
        LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)(owner & ~1);
        LDKChannelManager ret_var = *C2Tuple_BlockHashChannelManagerZ_get_b(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner & ~1;
+       ret_ref = (uintptr_t)ret_var.inner & ~1;
        return ret_ref;
 }
 
@@ -6779,7 +6792,7 @@ CHECK(owner->result_ok);
 }
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(uint32_t owner) {
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(owner & ~1);
-       uint64_t ret_ret = (uint64_t)CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(owner_conv) | 1;
+       uintptr_t ret_ret = (uintptr_t)CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(owner_conv) | 1;
        return ret_ret;
 }
 
@@ -6790,11 +6803,11 @@ CHECK(!owner->result_ok);
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_err"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_err(uint32_t owner) {
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(owner & ~1);
        LDKDecodeError ret_var = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_err(owner_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -6820,10 +6833,10 @@ LDKCVec_MessageSendEventZ get_and_clear_pending_msg_events_LDKMessageSendEventsP
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKMessageSendEvent), "LDKCVec_MessageSendEventZ Elements");
        else
                ret_constr.data = NULL;
-       uint32_t* ret_vals = ret->elems;
+       uint32_t* ret_vals = ret->elems /* XXX ret leaks */;
        for (size_t s = 0; s < ret_constr.datalen; s++) {
                uint32_t ret_conv_18 = ret_vals[s];
-               void* ret_conv_18_ptr = (void*)(((uint64_t)ret_conv_18) & ~1);
+               void* ret_conv_18_ptr = (void*)(((uintptr_t)ret_conv_18) & ~1);
                CHECK_ACCESS(ret_conv_18_ptr);
                LDKMessageSendEvent ret_conv_18_conv = *(LDKMessageSendEvent*)(ret_conv_18_ptr);
                FREE((void*)ret_conv_18);
@@ -6853,17 +6866,17 @@ long  __attribute__((export_name("TS_LDKMessageSendEventsProvider_new"))) TS_LDK
        return (long)res_ptr;
 }
 uint32_tArray  __attribute__((export_name("TS_MessageSendEventsProvider_get_and_clear_pending_msg_events"))) TS_MessageSendEventsProvider_get_and_clear_pending_msg_events(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKMessageSendEventsProvider* this_arg_conv = (LDKMessageSendEventsProvider*)this_arg_ptr;
        LDKCVec_MessageSendEventZ ret_var = (this_arg_conv->get_and_clear_pending_msg_events)(this_arg_conv->this_arg);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t s = 0; s < ret_var.datalen; s++) {
                LDKMessageSendEvent *ret_conv_18_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
                *ret_conv_18_copy = ret_var.data[s];
-               uint64_t ret_conv_18_ref = (uint64_t)ret_conv_18_copy;
+               uintptr_t ret_conv_18_ref = (uintptr_t)ret_conv_18_copy;
                ret_arr_ptr[s] = ret_conv_18_ref;
        }
        
@@ -6885,7 +6898,7 @@ void handle_event_LDKEventHandler_jcall(const void* this_arg, const LDKEvent * e
        LDKEventHandler_JCalls *j_calls = (LDKEventHandler_JCalls*) this_arg;
        LDKEvent *ret_event = MALLOC(sizeof(LDKEvent), "LDKEvent ret conversion");
        *ret_event = Event_clone(event);
-       js_invoke_function_1(j_calls->instance_ptr, 35, (uint32_t)(uint64_t)ret_event);
+       js_invoke_function_1(j_calls->instance_ptr, 35, (uint32_t)(uintptr_t)ret_event);
 }
 static void LDKEventHandler_JCalls_cloned(LDKEventHandler* new_obj) {
        LDKEventHandler_JCalls *j_calls = (LDKEventHandler_JCalls*) new_obj->this_arg;
@@ -6909,7 +6922,7 @@ long  __attribute__((export_name("TS_LDKEventHandler_new"))) TS_LDKEventHandler_
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_EventHandler_handle_event"))) TS_EventHandler_handle_event(uint32_t this_arg, uint32_t event) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKEventHandler* this_arg_conv = (LDKEventHandler*)this_arg_ptr;
        LDKEvent* event_conv = (LDKEvent*)event;
@@ -6930,7 +6943,7 @@ void process_pending_events_LDKEventsProvider_jcall(const void* this_arg, LDKEve
        LDKEventsProvider_JCalls *j_calls = (LDKEventsProvider_JCalls*) this_arg;
        LDKEventHandler* handler_ret = MALLOC(sizeof(LDKEventHandler), "LDKEventHandler");
        *handler_ret = handler;
-       js_invoke_function_1(j_calls->instance_ptr, 36, (uint32_t)(uint64_t)handler_ret);
+       js_invoke_function_1(j_calls->instance_ptr, 36, (uint32_t)(uintptr_t)handler_ret);
 }
 static void LDKEventsProvider_JCalls_cloned(LDKEventsProvider* new_obj) {
        LDKEventsProvider_JCalls *j_calls = (LDKEventsProvider_JCalls*) new_obj->this_arg;
@@ -6954,10 +6967,10 @@ long  __attribute__((export_name("TS_LDKEventsProvider_new"))) TS_LDKEventsProvi
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_EventsProvider_process_pending_events"))) TS_EventsProvider_process_pending_events(uint32_t this_arg, uint32_t handler) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKEventsProvider* this_arg_conv = (LDKEventsProvider*)this_arg_ptr;
-       void* handler_ptr = (void*)(((uint64_t)handler) & ~1);
+       void* handler_ptr = (void*)(((uintptr_t)handler) & ~1);
        CHECK_ACCESS(handler_ptr);
        LDKEventHandler handler_conv = *(LDKEventHandler*)(handler_ptr);
        (this_arg_conv->process_pending_events)(this_arg_conv->this_arg, handler_conv);
@@ -6976,13 +6989,13 @@ static void LDKListen_JCalls_free(void* this_arg) {
 void block_connected_LDKListen_jcall(const void* this_arg, LDKu8slice block, uint32_t height) {
        LDKListen_JCalls *j_calls = (LDKListen_JCalls*) this_arg;
        LDKu8slice block_var = block;
-       int8_tArray block_arr = init_int8_tArray(block_var.datalen);
+       int8_tArray block_arr = init_int8_tArray(block_var.datalen, __LINE__);
        memcpy(block_arr->elems, block_var.data, block_var.datalen);
        js_invoke_function_2(j_calls->instance_ptr, 37, (uint32_t)block_arr, (uint32_t)height);
 }
 void block_disconnected_LDKListen_jcall(const void* this_arg, const uint8_t (* header)[80], uint32_t height) {
        LDKListen_JCalls *j_calls = (LDKListen_JCalls*) this_arg;
-       int8_tArray header_arr = init_int8_tArray(80);
+       int8_tArray header_arr = init_int8_tArray(80, __LINE__);
        memcpy(header_arr->elems, *header, 80);
        js_invoke_function_2(j_calls->instance_ptr, 38, (uint32_t)header_arr, (uint32_t)height);
 }
@@ -7009,22 +7022,22 @@ long  __attribute__((export_name("TS_LDKListen_new"))) TS_LDKListen_new(JSValue
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_Listen_block_connected"))) TS_Listen_block_connected(uint32_t this_arg, int8_tArray block, int32_t height) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        LDKu8slice block_ref;
        block_ref.datalen = block->arr_len;
-       block_ref.data = block->elems;
+       block_ref.data = block->elems /* XXX block leaks */;
        (this_arg_conv->block_connected)(this_arg_conv->this_arg, block_ref, height);
 }
 
 void  __attribute__((export_name("TS_Listen_block_disconnected"))) TS_Listen_block_disconnected(uint32_t this_arg, int8_tArray header, int32_t height) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
        (this_arg_conv->block_disconnected)(this_arg_conv->this_arg, header_ref, height);
 }
@@ -7041,16 +7054,16 @@ static void LDKConfirm_JCalls_free(void* this_arg) {
 }
 void transactions_confirmed_LDKConfirm_jcall(const void* this_arg, const uint8_t (* header)[80], LDKCVec_C2Tuple_usizeTransactionZZ txdata, uint32_t height) {
        LDKConfirm_JCalls *j_calls = (LDKConfirm_JCalls*) this_arg;
-       int8_tArray header_arr = init_int8_tArray(80);
+       int8_tArray header_arr = init_int8_tArray(80, __LINE__);
        memcpy(header_arr->elems, *header, 80);
        LDKCVec_C2Tuple_usizeTransactionZZ txdata_var = txdata;
        uint32_tArray txdata_arr = NULL;
-       txdata_arr = init_uint32_tArray(txdata_var.datalen);
+       txdata_arr = init_uint32_tArray(txdata_var.datalen, __LINE__);
        uint32_t *txdata_arr_ptr = (uint32_t*)(((uint8_t*)txdata_arr) + 4);
        for (size_t c = 0; c < txdata_var.datalen; c++) {
                LDKC2Tuple_usizeTransactionZ* txdata_conv_28_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
                *txdata_conv_28_conv = txdata_var.data[c];
-               txdata_arr_ptr[c] = ((uint64_t)txdata_conv_28_conv);
+               txdata_arr_ptr[c] = ((uintptr_t)txdata_conv_28_conv);
        }
        
        FREE(txdata_var.data);
@@ -7058,13 +7071,13 @@ void transactions_confirmed_LDKConfirm_jcall(const void* this_arg, const uint8_t
 }
 void transaction_unconfirmed_LDKConfirm_jcall(const void* this_arg, const uint8_t (* txid)[32]) {
        LDKConfirm_JCalls *j_calls = (LDKConfirm_JCalls*) this_arg;
-       int8_tArray txid_arr = init_int8_tArray(32);
+       int8_tArray txid_arr = init_int8_tArray(32, __LINE__);
        memcpy(txid_arr->elems, *txid, 32);
        js_invoke_function_1(j_calls->instance_ptr, 40, (uint32_t)txid_arr);
 }
 void best_block_updated_LDKConfirm_jcall(const void* this_arg, const uint8_t (* header)[80], uint32_t height) {
        LDKConfirm_JCalls *j_calls = (LDKConfirm_JCalls*) this_arg;
-       int8_tArray header_arr = init_int8_tArray(80);
+       int8_tArray header_arr = init_int8_tArray(80, __LINE__);
        memcpy(header_arr->elems, *header, 80);
        js_invoke_function_2(j_calls->instance_ptr, 41, (uint32_t)header_arr, (uint32_t)height);
 }
@@ -7077,12 +7090,12 @@ LDKCVec_TxidZ get_relevant_txids_LDKConfirm_jcall(const void* this_arg) {
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKThirtyTwoBytes), "LDKCVec_TxidZ Elements");
        else
                ret_constr.data = NULL;
-       int8_tArray* ret_vals = (void*) ret->elems;
+       int8_tArray* ret_vals = (void*) ret->elems /* XXX ret leaks */;
        for (size_t m = 0; m < ret_constr.datalen; m++) {
                int8_tArray ret_conv_12 = ret_vals[m];
                LDKThirtyTwoBytes ret_conv_12_ref;
                CHECK(ret_conv_12->arr_len == 32);
-               memcpy(ret_conv_12_ref.data, ret_conv_12->elems, 32);
+               memcpy(ret_conv_12_ref.data, ret_conv_12->elems, 32); FREE(ret_conv_12);
                ret_constr.data[m] = ret_conv_12_ref;
        }
        return ret_constr;
@@ -7112,12 +7125,12 @@ long  __attribute__((export_name("TS_LDKConfirm_new"))) TS_LDKConfirm_new(JSValu
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_Confirm_transactions_confirmed"))) TS_Confirm_transactions_confirmed(uint32_t this_arg, int8_tArray header, uint32_tArray txdata, int32_t height) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
        LDKCVec_C2Tuple_usizeTransactionZZ txdata_constr;
        txdata_constr.datalen = txdata->arr_len;
@@ -7125,50 +7138,50 @@ void  __attribute__((export_name("TS_Confirm_transactions_confirmed"))) TS_Confi
                txdata_constr.data = MALLOC(txdata_constr.datalen * sizeof(LDKC2Tuple_usizeTransactionZ), "LDKCVec_C2Tuple_usizeTransactionZZ Elements");
        else
                txdata_constr.data = NULL;
-       uint32_t* txdata_vals = txdata->elems;
+       uint32_t* txdata_vals = txdata->elems /* XXX txdata leaks */;
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                uint32_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (this_arg_conv->transactions_confirmed)(this_arg_conv->this_arg, header_ref, txdata_constr, height);
 }
 
 void  __attribute__((export_name("TS_Confirm_transaction_unconfirmed"))) TS_Confirm_transaction_unconfirmed(uint32_t this_arg, int8_tArray txid) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK(txid->arr_len == 32);
-       memcpy(txid_arr, txid->elems, 32);
+       memcpy(txid_arr, txid->elems, 32); FREE(txid);
        unsigned char (*txid_ref)[32] = &txid_arr;
        (this_arg_conv->transaction_unconfirmed)(this_arg_conv->this_arg, txid_ref);
 }
 
 void  __attribute__((export_name("TS_Confirm_best_block_updated"))) TS_Confirm_best_block_updated(uint32_t this_arg, int8_tArray header, int32_t height) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
        (this_arg_conv->best_block_updated)(this_arg_conv->this_arg, header_ref, height);
 }
 
 ptrArray  __attribute__((export_name("TS_Confirm_get_relevant_txids"))) TS_Confirm_get_relevant_txids(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        LDKCVec_TxidZ ret_var = (this_arg_conv->get_relevant_txids)(this_arg_conv->this_arg);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
-               int8_tArray ret_conv_12_arr = init_int8_tArray(32);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(32, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_var.data[m].data, 32);
                ret_arr_ptr[m] = ret_conv_12_arr;
        }
@@ -7190,35 +7203,35 @@ static void LDKPersist_JCalls_free(void* this_arg) {
 LDKCResult_NoneChannelMonitorUpdateErrZ persist_new_channel_LDKPersist_jcall(const void* this_arg, LDKOutPoint channel_id, const LDKChannelMonitor * data, LDKMonitorUpdateId update_id) {
        LDKPersist_JCalls *j_calls = (LDKPersist_JCalls*) this_arg;
        LDKOutPoint channel_id_var = channel_id;
-       uint64_t channel_id_ref = 0;
-       CHECK((((uint64_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t channel_id_ref = 0;
+       CHECK((((uintptr_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_var);
-       channel_id_ref = (uint64_t)channel_id_var.inner;
+       channel_id_ref = (uintptr_t)channel_id_var.inner;
        if (channel_id_var.is_owned) {
                channel_id_ref |= 1;
        }
        LDKChannelMonitor data_var = *data;
-       uint64_t data_ref = 0;
+       uintptr_t data_ref = 0;
        data_var = ChannelMonitor_clone(data);
-       CHECK((((uint64_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_var);
-       data_ref = (uint64_t)data_var.inner;
+       data_ref = (uintptr_t)data_var.inner;
        if (data_var.is_owned) {
                data_ref |= 1;
        }
        LDKMonitorUpdateId update_id_var = update_id;
-       uint64_t update_id_ref = 0;
-       CHECK((((uint64_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t update_id_ref = 0;
+       CHECK((((uintptr_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_var);
-       update_id_ref = (uint64_t)update_id_var.inner;
+       update_id_ref = (uintptr_t)update_id_var.inner;
        if (update_id_var.is_owned) {
                update_id_ref |= 1;
        }
        uint32_t ret = js_invoke_function_3(j_calls->instance_ptr, 43, (uint32_t)channel_id_ref, (uint32_t)data_ref, (uint32_t)update_id_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        FREE((void*)ret);
@@ -7227,47 +7240,47 @@ LDKCResult_NoneChannelMonitorUpdateErrZ persist_new_channel_LDKPersist_jcall(con
 LDKCResult_NoneChannelMonitorUpdateErrZ update_persisted_channel_LDKPersist_jcall(const void* this_arg, LDKOutPoint channel_id, const LDKChannelMonitorUpdate * update, const LDKChannelMonitor * data, LDKMonitorUpdateId update_id) {
        LDKPersist_JCalls *j_calls = (LDKPersist_JCalls*) this_arg;
        LDKOutPoint channel_id_var = channel_id;
-       uint64_t channel_id_ref = 0;
-       CHECK((((uint64_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t channel_id_ref = 0;
+       CHECK((((uintptr_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_var);
-       channel_id_ref = (uint64_t)channel_id_var.inner;
+       channel_id_ref = (uintptr_t)channel_id_var.inner;
        if (channel_id_var.is_owned) {
                channel_id_ref |= 1;
        }
        LDKChannelMonitorUpdate update_var = *update;
-       uint64_t update_ref = 0;
-       if ((uint64_t)update_var.inner > 4096) {
+       uintptr_t update_ref = 0;
+       if ((uintptr_t)update_var.inner > 4096) {
                update_var = ChannelMonitorUpdate_clone(update);
-               CHECK((((uint64_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               CHECK((((uintptr_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_var);
-               update_ref = (uint64_t)update_var.inner;
+               update_ref = (uintptr_t)update_var.inner;
                if (update_var.is_owned) {
                        update_ref |= 1;
                }
        }
        LDKChannelMonitor data_var = *data;
-       uint64_t data_ref = 0;
+       uintptr_t data_ref = 0;
        data_var = ChannelMonitor_clone(data);
-       CHECK((((uint64_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_var);
-       data_ref = (uint64_t)data_var.inner;
+       data_ref = (uintptr_t)data_var.inner;
        if (data_var.is_owned) {
                data_ref |= 1;
        }
        LDKMonitorUpdateId update_id_var = update_id;
-       uint64_t update_id_ref = 0;
-       CHECK((((uint64_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t update_id_ref = 0;
+       CHECK((((uintptr_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_var);
-       update_id_ref = (uint64_t)update_id_var.inner;
+       update_id_ref = (uintptr_t)update_id_var.inner;
        if (update_id_var.is_owned) {
                update_id_ref |= 1;
        }
        uint32_t ret = js_invoke_function_4(j_calls->instance_ptr, 44, (uint32_t)channel_id_ref, (uint32_t)update_ref, (uint32_t)data_ref, (uint32_t)update_id_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        FREE((void*)ret);
@@ -7296,7 +7309,7 @@ long  __attribute__((export_name("TS_LDKPersist_new"))) TS_LDKPersist_new(JSValu
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_Persist_persist_new_channel"))) TS_Persist_persist_new_channel(uint32_t this_arg, uint32_t channel_id, uint32_t data, uint32_t update_id) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint channel_id_conv;
@@ -7315,11 +7328,11 @@ uint32_t  __attribute__((export_name("TS_Persist_persist_new_channel"))) TS_Pers
        update_id_conv = MonitorUpdateId_clone(&update_id_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->persist_new_channel)(this_arg_conv->this_arg, channel_id_conv, &data_conv, update_id_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_Persist_update_persisted_channel"))) TS_Persist_update_persisted_channel(uint32_t this_arg, uint32_t channel_id, uint32_t update, uint32_t data, uint32_t update_id) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint channel_id_conv;
@@ -7342,7 +7355,7 @@ uint32_t  __attribute__((export_name("TS_Persist_update_persisted_channel"))) TS
        update_id_conv = MonitorUpdateId_clone(&update_id_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->update_persisted_channel)(this_arg_conv->this_arg, channel_id_conv, &update_conv, &data_conv, update_id_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 typedef struct LDKChannelMessageHandler_JCalls {
@@ -7358,24 +7371,24 @@ static void LDKChannelMessageHandler_JCalls_free(void* this_arg) {
 }
 void handle_open_channel_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKInitFeatures their_features, const LDKOpenChannel * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKInitFeatures their_features_var = their_features;
-       uint64_t their_features_ref = 0;
-       CHECK((((uint64_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t their_features_ref = 0;
+       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uint64_t)their_features_var.inner;
+       their_features_ref = (uintptr_t)their_features_var.inner;
        if (their_features_var.is_owned) {
                their_features_ref |= 1;
        }
        LDKOpenChannel msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = OpenChannel_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7383,24 +7396,24 @@ void handle_open_channel_LDKChannelMessageHandler_jcall(const void* this_arg, LD
 }
 void handle_accept_channel_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKInitFeatures their_features, const LDKAcceptChannel * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKInitFeatures their_features_var = their_features;
-       uint64_t their_features_ref = 0;
-       CHECK((((uint64_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t their_features_ref = 0;
+       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uint64_t)their_features_var.inner;
+       their_features_ref = (uintptr_t)their_features_var.inner;
        if (their_features_var.is_owned) {
                their_features_ref |= 1;
        }
        LDKAcceptChannel msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = AcceptChannel_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7408,15 +7421,15 @@ void handle_accept_channel_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_funding_created_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKFundingCreated * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKFundingCreated msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = FundingCreated_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7424,15 +7437,15 @@ void handle_funding_created_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_funding_signed_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKFundingSigned * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKFundingSigned msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = FundingSigned_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7440,15 +7453,15 @@ void handle_funding_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_funding_locked_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKFundingLocked * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKFundingLocked msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = FundingLocked_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7456,25 +7469,25 @@ void handle_funding_locked_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_shutdown_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKInitFeatures * their_features, const LDKShutdown * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKInitFeatures their_features_var = *their_features;
-       uint64_t their_features_ref = 0;
+       uintptr_t their_features_ref = 0;
        their_features_var = InitFeatures_clone(their_features);
-       CHECK((((uint64_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uint64_t)their_features_var.inner;
+       their_features_ref = (uintptr_t)their_features_var.inner;
        if (their_features_var.is_owned) {
                their_features_ref |= 1;
        }
        LDKShutdown msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = Shutdown_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7482,15 +7495,15 @@ void handle_shutdown_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPub
 }
 void handle_closing_signed_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKClosingSigned * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKClosingSigned msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ClosingSigned_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7498,15 +7511,15 @@ void handle_closing_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_update_add_htlc_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKUpdateAddHTLC * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKUpdateAddHTLC msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UpdateAddHTLC_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7514,15 +7527,15 @@ void handle_update_add_htlc_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_update_fulfill_htlc_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKUpdateFulfillHTLC * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKUpdateFulfillHTLC msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UpdateFulfillHTLC_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7530,15 +7543,15 @@ void handle_update_fulfill_htlc_LDKChannelMessageHandler_jcall(const void* this_
 }
 void handle_update_fail_htlc_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKUpdateFailHTLC * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKUpdateFailHTLC msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UpdateFailHTLC_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7546,15 +7559,15 @@ void handle_update_fail_htlc_LDKChannelMessageHandler_jcall(const void* this_arg
 }
 void handle_update_fail_malformed_htlc_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKUpdateFailMalformedHTLC * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKUpdateFailMalformedHTLC msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UpdateFailMalformedHTLC_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7562,15 +7575,15 @@ void handle_update_fail_malformed_htlc_LDKChannelMessageHandler_jcall(const void
 }
 void handle_commitment_signed_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKCommitmentSigned * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKCommitmentSigned msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = CommitmentSigned_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7578,15 +7591,15 @@ void handle_commitment_signed_LDKChannelMessageHandler_jcall(const void* this_ar
 }
 void handle_revoke_and_ack_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKRevokeAndACK * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKRevokeAndACK msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = RevokeAndACK_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7594,15 +7607,15 @@ void handle_revoke_and_ack_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_update_fee_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKUpdateFee * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKUpdateFee msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = UpdateFee_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7610,15 +7623,15 @@ void handle_update_fee_LDKChannelMessageHandler_jcall(const void* this_arg, LDKP
 }
 void handle_announcement_signatures_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKAnnouncementSignatures * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKAnnouncementSignatures msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = AnnouncementSignatures_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7626,21 +7639,21 @@ void handle_announcement_signatures_LDKChannelMessageHandler_jcall(const void* t
 }
 void peer_disconnected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, bool no_connection_possible) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        js_invoke_function_2(j_calls->instance_ptr, 60, (uint32_t)their_node_id_arr, (uint32_t)no_connection_possible);
 }
 void peer_connected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKInit * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKInit msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = Init_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7648,15 +7661,15 @@ void peer_connected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPubl
 }
 void handle_channel_reestablish_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKChannelReestablish * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKChannelReestablish msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ChannelReestablish_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7664,15 +7677,15 @@ void handle_channel_reestablish_LDKChannelMessageHandler_jcall(const void* this_
 }
 void handle_channel_update_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKChannelUpdate * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKChannelUpdate msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ChannelUpdate_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7680,15 +7693,15 @@ void handle_channel_update_LDKChannelMessageHandler_jcall(const void* this_arg,
 }
 void handle_error_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKErrorMessage * msg) {
        LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKErrorMessage msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ErrorMessage_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
@@ -7738,12 +7751,12 @@ long  __attribute__((export_name("TS_LDKChannelMessageHandler_new"))) TS_LDKChan
        return (long)res_ptr;
 }
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_open_channel"))) TS_ChannelMessageHandler_handle_open_channel(uint32_t this_arg, int8_tArray their_node_id, uint32_t their_features, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKInitFeatures their_features_conv;
        their_features_conv.inner = (void*)(their_features & (~1));
        their_features_conv.is_owned = (their_features & 1) || (their_features == 0);
@@ -7757,12 +7770,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_open_channel")
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_accept_channel"))) TS_ChannelMessageHandler_handle_accept_channel(uint32_t this_arg, int8_tArray their_node_id, uint32_t their_features, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKInitFeatures their_features_conv;
        their_features_conv.inner = (void*)(their_features & (~1));
        their_features_conv.is_owned = (their_features & 1) || (their_features == 0);
@@ -7776,12 +7789,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_accept_channel
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_created"))) TS_ChannelMessageHandler_handle_funding_created(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKFundingCreated msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7790,12 +7803,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_create
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_signed"))) TS_ChannelMessageHandler_handle_funding_signed(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKFundingSigned msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7804,12 +7817,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_signed
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_locked"))) TS_ChannelMessageHandler_handle_funding_locked(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKFundingLocked msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7818,12 +7831,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_funding_locked
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_shutdown"))) TS_ChannelMessageHandler_handle_shutdown(uint32_t this_arg, int8_tArray their_node_id, uint32_t their_features, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKInitFeatures their_features_conv;
        their_features_conv.inner = (void*)(their_features & (~1));
        their_features_conv.is_owned = false;
@@ -7836,12 +7849,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_shutdown"))) T
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_closing_signed"))) TS_ChannelMessageHandler_handle_closing_signed(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKClosingSigned msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7850,12 +7863,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_closing_signed
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_add_htlc"))) TS_ChannelMessageHandler_handle_update_add_htlc(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKUpdateAddHTLC msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7864,12 +7877,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_add_htl
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fulfill_htlc"))) TS_ChannelMessageHandler_handle_update_fulfill_htlc(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKUpdateFulfillHTLC msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7878,12 +7891,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fulfill
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fail_htlc"))) TS_ChannelMessageHandler_handle_update_fail_htlc(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKUpdateFailHTLC msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7892,12 +7905,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fail_ht
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fail_malformed_htlc"))) TS_ChannelMessageHandler_handle_update_fail_malformed_htlc(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKUpdateFailMalformedHTLC msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7906,12 +7919,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fail_ma
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_commitment_signed"))) TS_ChannelMessageHandler_handle_commitment_signed(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKCommitmentSigned msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7920,12 +7933,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_commitment_sig
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_revoke_and_ack"))) TS_ChannelMessageHandler_handle_revoke_and_ack(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKRevokeAndACK msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7934,12 +7947,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_revoke_and_ack
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fee"))) TS_ChannelMessageHandler_handle_update_fee(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKUpdateFee msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7948,12 +7961,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_update_fee")))
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_announcement_signatures"))) TS_ChannelMessageHandler_handle_announcement_signatures(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKAnnouncementSignatures msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7962,22 +7975,22 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_announcement_s
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_peer_disconnected"))) TS_ChannelMessageHandler_peer_disconnected(uint32_t this_arg, int8_tArray their_node_id, jboolean no_connection_possible) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        (this_arg_conv->peer_disconnected)(this_arg_conv->this_arg, their_node_id_ref, no_connection_possible);
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_peer_connected"))) TS_ChannelMessageHandler_peer_connected(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKInit msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -7986,12 +7999,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_peer_connected"))) TS
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_channel_reestablish"))) TS_ChannelMessageHandler_handle_channel_reestablish(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKChannelReestablish msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -8000,12 +8013,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_channel_reesta
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_channel_update"))) TS_ChannelMessageHandler_handle_channel_update(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKChannelUpdate msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -8014,12 +8027,12 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_handle_channel_update
 }
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_handle_error"))) TS_ChannelMessageHandler_handle_error(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKErrorMessage msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
@@ -8041,17 +8054,17 @@ static void LDKRoutingMessageHandler_JCalls_free(void* this_arg) {
 LDKCResult_boolLightningErrorZ handle_node_announcement_LDKRoutingMessageHandler_jcall(const void* this_arg, const LDKNodeAnnouncement * msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
        LDKNodeAnnouncement msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = NodeAnnouncement_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 65, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8060,17 +8073,17 @@ LDKCResult_boolLightningErrorZ handle_node_announcement_LDKRoutingMessageHandler
 LDKCResult_boolLightningErrorZ handle_channel_announcement_LDKRoutingMessageHandler_jcall(const void* this_arg, const LDKChannelAnnouncement * msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
        LDKChannelAnnouncement msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ChannelAnnouncement_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 66, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8079,17 +8092,17 @@ LDKCResult_boolLightningErrorZ handle_channel_announcement_LDKRoutingMessageHand
 LDKCResult_boolLightningErrorZ handle_channel_update_LDKRoutingMessageHandler_jcall(const void* this_arg, const LDKChannelUpdate * msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
        LDKChannelUpdate msg_var = *msg;
-       uint64_t msg_ref = 0;
+       uintptr_t msg_ref = 0;
        msg_var = ChannelUpdate_clone(msg);
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_1(j_calls->instance_ptr, 67, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8104,10 +8117,10 @@ LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ Elements");
        else
                ret_constr.data = NULL;
-       uint32_t* ret_vals = ret->elems;
+       uint32_t* ret_vals = ret->elems /* XXX ret leaks */;
        for (size_t h = 0; h < ret_constr.datalen; h++) {
                uint32_t ret_conv_59 = ret_vals[h];
-               void* ret_conv_59_ptr = (void*)(((uint64_t)ret_conv_59) & ~1);
+               void* ret_conv_59_ptr = (void*)(((uintptr_t)ret_conv_59) & ~1);
                CHECK_ACCESS(ret_conv_59_ptr);
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ ret_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(ret_conv_59_ptr);
                FREE((void*)ret_conv_59);
@@ -8117,7 +8130,7 @@ LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel
 }
 LDKCVec_NodeAnnouncementZ get_next_node_announcements_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey starting_point, uint8_t batch_amount) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray starting_point_arr = init_int8_tArray(33);
+       int8_tArray starting_point_arr = init_int8_tArray(33, __LINE__);
        memcpy(starting_point_arr->elems, starting_point.compressed_form, 33);
        uint32_tArray ret = (uint32_tArray)js_invoke_function_2(j_calls->instance_ptr, 69, (uint32_t)starting_point_arr, (uint32_t)batch_amount);
        LDKCVec_NodeAnnouncementZ ret_constr;
@@ -8126,7 +8139,7 @@ LDKCVec_NodeAnnouncementZ get_next_node_announcements_LDKRoutingMessageHandler_j
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKNodeAnnouncement), "LDKCVec_NodeAnnouncementZ Elements");
        else
                ret_constr.data = NULL;
-       uint32_t* ret_vals = ret->elems;
+       uint32_t* ret_vals = ret->elems /* XXX ret leaks */;
        for (size_t s = 0; s < ret_constr.datalen; s++) {
                uint32_t ret_conv_18 = ret_vals[s];
                LDKNodeAnnouncement ret_conv_18_conv;
@@ -8139,15 +8152,15 @@ LDKCVec_NodeAnnouncementZ get_next_node_announcements_LDKRoutingMessageHandler_j
 }
 void sync_routing_table_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, const LDKInit * init) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKInit init_var = *init;
-       uint64_t init_ref = 0;
+       uintptr_t init_ref = 0;
        init_var = Init_clone(init);
-       CHECK((((uint64_t)init_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&init_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)init_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&init_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(init_var);
-       init_ref = (uint64_t)init_var.inner;
+       init_ref = (uintptr_t)init_var.inner;
        if (init_var.is_owned) {
                init_ref |= 1;
        }
@@ -8155,19 +8168,19 @@ void sync_routing_table_LDKRoutingMessageHandler_jcall(const void* this_arg, LDK
 }
 LDKCResult_NoneLightningErrorZ handle_reply_channel_range_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKReplyChannelRange msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKReplyChannelRange msg_var = msg;
-       uint64_t msg_ref = 0;
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t msg_ref = 0;
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 71, (uint32_t)their_node_id_arr, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8175,19 +8188,19 @@ LDKCResult_NoneLightningErrorZ handle_reply_channel_range_LDKRoutingMessageHandl
 }
 LDKCResult_NoneLightningErrorZ handle_reply_short_channel_ids_end_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKReplyShortChannelIdsEnd msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKReplyShortChannelIdsEnd msg_var = msg;
-       uint64_t msg_ref = 0;
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t msg_ref = 0;
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 72, (uint32_t)their_node_id_arr, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8195,19 +8208,19 @@ LDKCResult_NoneLightningErrorZ handle_reply_short_channel_ids_end_LDKRoutingMess
 }
 LDKCResult_NoneLightningErrorZ handle_query_channel_range_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKQueryChannelRange msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKQueryChannelRange msg_var = msg;
-       uint64_t msg_ref = 0;
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t msg_ref = 0;
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 73, (uint32_t)their_node_id_arr, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8215,19 +8228,19 @@ LDKCResult_NoneLightningErrorZ handle_query_channel_range_LDKRoutingMessageHandl
 }
 LDKCResult_NoneLightningErrorZ handle_query_short_channel_ids_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPublicKey their_node_id, LDKQueryShortChannelIds msg) {
        LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
-       int8_tArray their_node_id_arr = init_int8_tArray(33);
+       int8_tArray their_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(their_node_id_arr->elems, their_node_id.compressed_form, 33);
        LDKQueryShortChannelIds msg_var = msg;
-       uint64_t msg_ref = 0;
-       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t msg_ref = 0;
+       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uint64_t)msg_var.inner;
+       msg_ref = (uintptr_t)msg_var.inner;
        if (msg_var.is_owned) {
                msg_ref |= 1;
        }
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 74, (uint32_t)their_node_id_arr, (uint32_t)msg_ref);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8267,7 +8280,7 @@ long  __attribute__((export_name("TS_LDKRoutingMessageHandler_new"))) TS_LDKRout
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_node_announcement"))) TS_RoutingMessageHandler_handle_node_announcement(uint32_t this_arg, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKNodeAnnouncement msg_conv;
@@ -8276,11 +8289,11 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_node_annou
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_node_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_channel_announcement"))) TS_RoutingMessageHandler_handle_channel_announcement(uint32_t this_arg, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKChannelAnnouncement msg_conv;
@@ -8289,11 +8302,11 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_channel_an
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_channel_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_channel_update"))) TS_RoutingMessageHandler_handle_channel_update(uint32_t this_arg, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKChannelUpdate msg_conv;
@@ -8302,21 +8315,21 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_channel_up
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_channel_update)(this_arg_conv->this_arg, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_tArray  __attribute__((export_name("TS_RoutingMessageHandler_get_next_channel_announcements"))) TS_RoutingMessageHandler_get_next_channel_announcements(uint32_t this_arg, int64_t starting_point, int8_t batch_amount) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ ret_var = (this_arg_conv->get_next_channel_announcements)(this_arg_conv->this_arg, starting_point, batch_amount);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t h = 0; h < ret_var.datalen; h++) {
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv_59_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
                *ret_conv_59_conv = ret_var.data[h];
-               ret_arr_ptr[h] = ((uint64_t)ret_conv_59_conv);
+               ret_arr_ptr[h] = ((uintptr_t)ret_conv_59_conv);
        }
        
        FREE(ret_var.data);
@@ -8324,23 +8337,23 @@ uint32_tArray  __attribute__((export_name("TS_RoutingMessageHandler_get_next_cha
 }
 
 uint32_tArray  __attribute__((export_name("TS_RoutingMessageHandler_get_next_node_announcements"))) TS_RoutingMessageHandler_get_next_node_announcements(uint32_t this_arg, int8_tArray starting_point, int8_t batch_amount) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey starting_point_ref;
        CHECK(starting_point->arr_len == 33);
-       memcpy(starting_point_ref.compressed_form, starting_point->elems, 33);
+       memcpy(starting_point_ref.compressed_form, starting_point->elems, 33); FREE(starting_point);
        LDKCVec_NodeAnnouncementZ ret_var = (this_arg_conv->get_next_node_announcements)(this_arg_conv->this_arg, starting_point_ref, batch_amount);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t s = 0; s < ret_var.datalen; s++) {
                LDKNodeAnnouncement ret_conv_18_var = ret_var.data[s];
-               uint64_t ret_conv_18_ref = 0;
-               CHECK((((uint64_t)ret_conv_18_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_18_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_18_ref = 0;
+               CHECK((((uintptr_t)ret_conv_18_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_18_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_18_var);
-               ret_conv_18_ref = (uint64_t)ret_conv_18_var.inner;
+               ret_conv_18_ref = (uintptr_t)ret_conv_18_var.inner;
                if (ret_conv_18_var.is_owned) {
                        ret_conv_18_ref |= 1;
                }
@@ -8352,12 +8365,12 @@ uint32_tArray  __attribute__((export_name("TS_RoutingMessageHandler_get_next_nod
 }
 
 void  __attribute__((export_name("TS_RoutingMessageHandler_sync_routing_table"))) TS_RoutingMessageHandler_sync_routing_table(uint32_t this_arg, int8_tArray their_node_id, uint32_t init) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKInit init_conv;
        init_conv.inner = (void*)(init & (~1));
        init_conv.is_owned = false;
@@ -8366,12 +8379,12 @@ void  __attribute__((export_name("TS_RoutingMessageHandler_sync_routing_table"))
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_reply_channel_range"))) TS_RoutingMessageHandler_handle_reply_channel_range(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKReplyChannelRange msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -8379,16 +8392,16 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_reply_chan
        msg_conv = ReplyChannelRange_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_reply_channel_range)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_reply_short_channel_ids_end"))) TS_RoutingMessageHandler_handle_reply_short_channel_ids_end(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKReplyShortChannelIdsEnd msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -8396,16 +8409,16 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_reply_shor
        msg_conv = ReplyShortChannelIdsEnd_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_reply_short_channel_ids_end)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_query_channel_range"))) TS_RoutingMessageHandler_handle_query_channel_range(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKQueryChannelRange msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -8413,16 +8426,16 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_query_chan
        msg_conv = QueryChannelRange_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_query_channel_range)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_query_short_channel_ids"))) TS_RoutingMessageHandler_handle_query_short_channel_ids(uint32_t this_arg, int8_tArray their_node_id, uint32_t msg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
        LDKQueryShortChannelIds msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -8430,7 +8443,7 @@ uint32_t  __attribute__((export_name("TS_RoutingMessageHandler_handle_query_shor
        msg_conv = QueryShortChannelIds_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_query_short_channel_ids)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 typedef struct LDKCustomMessageReader_JCalls {
@@ -8446,10 +8459,10 @@ static void LDKCustomMessageReader_JCalls_free(void* this_arg) {
 LDKCResult_COption_TypeZDecodeErrorZ read_LDKCustomMessageReader_jcall(const void* this_arg, uint16_t message_type, LDKu8slice buffer) {
        LDKCustomMessageReader_JCalls *j_calls = (LDKCustomMessageReader_JCalls*) this_arg;
        LDKu8slice buffer_var = buffer;
-       int8_tArray buffer_arr = init_int8_tArray(buffer_var.datalen);
+       int8_tArray buffer_arr = init_int8_tArray(buffer_var.datalen, __LINE__);
        memcpy(buffer_arr->elems, buffer_var.data, buffer_var.datalen);
        uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 75, (uint32_t)message_type, (uint32_t)buffer_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_COption_TypeZDecodeErrorZ ret_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8477,15 +8490,15 @@ long  __attribute__((export_name("TS_LDKCustomMessageReader_new"))) TS_LDKCustom
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_CustomMessageReader_read"))) TS_CustomMessageReader_read(uint32_t this_arg, int16_t message_type, int8_tArray buffer) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageReader* this_arg_conv = (LDKCustomMessageReader*)this_arg_ptr;
        LDKu8slice buffer_ref;
        buffer_ref.datalen = buffer->arr_len;
-       buffer_ref.data = buffer->elems;
+       buffer_ref.data = buffer->elems /* XXX buffer leaks */;
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = (this_arg_conv->read)(this_arg_conv->this_arg, message_type, buffer_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 typedef struct LDKCustomMessageHandler_JCalls {
@@ -8503,10 +8516,10 @@ LDKCResult_NoneLightningErrorZ handle_custom_message_LDKCustomMessageHandler_jca
        LDKCustomMessageHandler_JCalls *j_calls = (LDKCustomMessageHandler_JCalls*) this_arg;
        LDKType* msg_ret = MALLOC(sizeof(LDKType), "LDKType");
        *msg_ret = msg;
-       int8_tArray sender_node_id_arr = init_int8_tArray(33);
+       int8_tArray sender_node_id_arr = init_int8_tArray(33, __LINE__);
        memcpy(sender_node_id_arr->elems, sender_node_id.compressed_form, 33);
-       uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 76, (uint32_t)(uint64_t)msg_ret, (uint32_t)sender_node_id_arr);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       uint32_t ret = js_invoke_function_2(j_calls->instance_ptr, 76, (uint32_t)(uintptr_t)msg_ret, (uint32_t)sender_node_id_arr);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        FREE((void*)ret);
@@ -8521,10 +8534,10 @@ LDKCVec_C2Tuple_PublicKeyTypeZZ get_and_clear_pending_msg_LDKCustomMessageHandle
                ret_constr.data = MALLOC(ret_constr.datalen * sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKCVec_C2Tuple_PublicKeyTypeZZ Elements");
        else
                ret_constr.data = NULL;
-       uint32_t* ret_vals = ret->elems;
+       uint32_t* ret_vals = ret->elems /* XXX ret leaks */;
        for (size_t z = 0; z < ret_constr.datalen; z++) {
                uint32_t ret_conv_25 = ret_vals[z];
-               void* ret_conv_25_ptr = (void*)(((uint64_t)ret_conv_25) & ~1);
+               void* ret_conv_25_ptr = (void*)(((uintptr_t)ret_conv_25) & ~1);
                CHECK_ACCESS(ret_conv_25_ptr);
                LDKC2Tuple_PublicKeyTypeZ ret_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(ret_conv_25_ptr);
                FREE((void*)ret_conv_25);
@@ -8558,32 +8571,32 @@ long  __attribute__((export_name("TS_LDKCustomMessageHandler_new"))) TS_LDKCusto
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_CustomMessageHandler_handle_custom_message"))) TS_CustomMessageHandler_handle_custom_message(uint32_t this_arg, uint32_t msg, int8_tArray sender_node_id) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)this_arg_ptr;
-       void* msg_ptr = (void*)(((uint64_t)msg) & ~1);
+       void* msg_ptr = (void*)(((uintptr_t)msg) & ~1);
        CHECK_ACCESS(msg_ptr);
        LDKType msg_conv = *(LDKType*)(msg_ptr);
        LDKPublicKey sender_node_id_ref;
        CHECK(sender_node_id->arr_len == 33);
-       memcpy(sender_node_id_ref.compressed_form, sender_node_id->elems, 33);
+       memcpy(sender_node_id_ref.compressed_form, sender_node_id->elems, 33); FREE(sender_node_id);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_custom_message)(this_arg_conv->this_arg, msg_conv, sender_node_id_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_tArray  __attribute__((export_name("TS_CustomMessageHandler_get_and_clear_pending_msg"))) TS_CustomMessageHandler_get_and_clear_pending_msg(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)this_arg_ptr;
        LDKCVec_C2Tuple_PublicKeyTypeZZ ret_var = (this_arg_conv->get_and_clear_pending_msg)(this_arg_conv->this_arg);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t z = 0; z < ret_var.datalen; z++) {
                LDKC2Tuple_PublicKeyTypeZ* ret_conv_25_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
                *ret_conv_25_conv = ret_var.data[z];
-               ret_arr_ptr[z] = ((uint64_t)ret_conv_25_conv);
+               ret_arr_ptr[z] = ((uintptr_t)ret_conv_25_conv);
        }
        
        FREE(ret_var.data);
@@ -8603,7 +8616,7 @@ static void LDKSocketDescriptor_JCalls_free(void* this_arg) {
 uintptr_t send_data_LDKSocketDescriptor_jcall(void* this_arg, LDKu8slice data, bool resume_read) {
        LDKSocketDescriptor_JCalls *j_calls = (LDKSocketDescriptor_JCalls*) this_arg;
        LDKu8slice data_var = data;
-       int8_tArray data_arr = init_int8_tArray(data_var.datalen);
+       int8_tArray data_arr = init_int8_tArray(data_var.datalen, __LINE__);
        memcpy(data_arr->elems, data_var.data, data_var.datalen);
        return js_invoke_function_2(j_calls->instance_ptr, 78, (uint32_t)data_arr, (uint32_t)resume_read);
 }
@@ -8615,7 +8628,7 @@ bool eq_LDKSocketDescriptor_jcall(const void* this_arg, const LDKSocketDescripto
        LDKSocketDescriptor_JCalls *j_calls = (LDKSocketDescriptor_JCalls*) this_arg;
        LDKSocketDescriptor *other_arg_clone = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *other_arg_clone = SocketDescriptor_clone(other_arg);
-       return js_invoke_function_1(j_calls->instance_ptr, 80, (uint32_t)(uint64_t)other_arg_clone);
+       return js_invoke_function_1(j_calls->instance_ptr, 80, (uint32_t)(uintptr_t)other_arg_clone);
 }
 uint64_t hash_LDKSocketDescriptor_jcall(const void* this_arg) {
        LDKSocketDescriptor_JCalls *j_calls = (LDKSocketDescriptor_JCalls*) this_arg;
@@ -8646,26 +8659,26 @@ long  __attribute__((export_name("TS_LDKSocketDescriptor_new"))) TS_LDKSocketDes
        *res_ptr = LDKSocketDescriptor_init(o);
        return (long)res_ptr;
 }
-int64_t  __attribute__((export_name("TS_SocketDescriptor_send_data"))) TS_SocketDescriptor_send_data(uint32_t this_arg, int8_tArray data, jboolean resume_read) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+intptr_t  __attribute__((export_name("TS_SocketDescriptor_send_data"))) TS_SocketDescriptor_send_data(uint32_t this_arg, int8_tArray data, jboolean resume_read) {
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = data->arr_len;
-       data_ref.data = data->elems;
-       int64_t ret_val = (this_arg_conv->send_data)(this_arg_conv->this_arg, data_ref, resume_read);
+       data_ref.data = data->elems /* XXX data leaks */;
+       intptr_t ret_val = (this_arg_conv->send_data)(this_arg_conv->this_arg, data_ref, resume_read);
        return ret_val;
 }
 
 void  __attribute__((export_name("TS_SocketDescriptor_disconnect_socket"))) TS_SocketDescriptor_disconnect_socket(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        (this_arg_conv->disconnect_socket)(this_arg_conv->this_arg);
 }
 
 int64_t  __attribute__((export_name("TS_SocketDescriptor_hash"))) TS_SocketDescriptor_hash(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        int64_t ret_val = (this_arg_conv->hash)(this_arg_conv->this_arg);
@@ -8686,24 +8699,24 @@ uint64_t channel_penalty_msat_LDKScore_jcall(const void* this_arg, uint64_t shor
        LDKScore_JCalls *j_calls = (LDKScore_JCalls*) this_arg;
        LDKCOption_u64Z *channel_capacity_msat_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *channel_capacity_msat_copy = channel_capacity_msat;
-       uint64_t channel_capacity_msat_ref = (uint64_t)channel_capacity_msat_copy;
+       uintptr_t channel_capacity_msat_ref = (uintptr_t)channel_capacity_msat_copy;
        LDKNodeId source_var = *source;
-       uint64_t source_ref = 0;
+       uintptr_t source_ref = 0;
        source_var = NodeId_clone(source);
-       CHECK((((uint64_t)source_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&source_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)source_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&source_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(source_var);
-       source_ref = (uint64_t)source_var.inner;
+       source_ref = (uintptr_t)source_var.inner;
        if (source_var.is_owned) {
                source_ref |= 1;
        }
        LDKNodeId target_var = *target;
-       uint64_t target_ref = 0;
+       uintptr_t target_ref = 0;
        target_var = NodeId_clone(target);
-       CHECK((((uint64_t)target_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&target_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       CHECK((((uintptr_t)target_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&target_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(target_var);
-       target_ref = (uint64_t)target_var.inner;
+       target_ref = (uintptr_t)target_var.inner;
        if (target_var.is_owned) {
                target_ref |= 1;
        }
@@ -8713,15 +8726,15 @@ void payment_path_failed_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ path,
        LDKScore_JCalls *j_calls = (LDKScore_JCalls*) this_arg;
        LDKCVec_RouteHopZ path_var = path;
        uint32_tArray path_arr = NULL;
-       path_arr = init_uint32_tArray(path_var.datalen);
+       path_arr = init_uint32_tArray(path_var.datalen, __LINE__);
        uint32_t *path_arr_ptr = (uint32_t*)(((uint8_t*)path_arr) + 4);
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
-               uint64_t path_conv_10_ref = 0;
-               CHECK((((uint64_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t path_conv_10_ref = 0;
+               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uint64_t)path_conv_10_var.inner;
+               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
                if (path_conv_10_var.is_owned) {
                        path_conv_10_ref |= 1;
                }
@@ -8735,15 +8748,15 @@ void payment_path_successful_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ pa
        LDKScore_JCalls *j_calls = (LDKScore_JCalls*) this_arg;
        LDKCVec_RouteHopZ path_var = path;
        uint32_tArray path_arr = NULL;
-       path_arr = init_uint32_tArray(path_var.datalen);
+       path_arr = init_uint32_tArray(path_var.datalen, __LINE__);
        uint32_t *path_arr_ptr = (uint32_t*)(((uint8_t*)path_arr) + 4);
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
-               uint64_t path_conv_10_ref = 0;
-               CHECK((((uint64_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t path_conv_10_ref = 0;
+               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uint64_t)path_conv_10_var.inner;
+               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
                if (path_conv_10_var.is_owned) {
                        path_conv_10_ref |= 1;
                }
@@ -8759,7 +8772,7 @@ LDKCVec_u8Z write_LDKScore_jcall(const void* this_arg) {
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = ret->arr_len;
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(ret_ref.data, ret->elems, ret_ref.datalen);
+       memcpy(ret_ref.data, ret->elems, ret_ref.datalen); FREE(ret);
        return ret_ref;
 }
 static void LDKScore_JCalls_cloned(LDKScore* new_obj) {
@@ -8787,13 +8800,13 @@ long  __attribute__((export_name("TS_LDKScore_new"))) TS_LDKScore_new(JSValue o)
        return (long)res_ptr;
 }
 int64_t  __attribute__((export_name("TS_Score_channel_penalty_msat"))) TS_Score_channel_penalty_msat(uint32_t this_arg, int64_t short_channel_id, int64_t send_amt_msat, uint32_t channel_capacity_msat, uint32_t source, uint32_t target) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
-       void* channel_capacity_msat_ptr = (void*)(((uint64_t)channel_capacity_msat) & ~1);
+       void* channel_capacity_msat_ptr = (void*)(((uintptr_t)channel_capacity_msat) & ~1);
        CHECK_ACCESS(channel_capacity_msat_ptr);
        LDKCOption_u64Z channel_capacity_msat_conv = *(LDKCOption_u64Z*)(channel_capacity_msat_ptr);
-       channel_capacity_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)channel_capacity_msat) & ~1));
+       channel_capacity_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)channel_capacity_msat) & ~1));
        LDKNodeId source_conv;
        source_conv.inner = (void*)(source & (~1));
        source_conv.is_owned = false;
@@ -8807,7 +8820,7 @@ int64_t  __attribute__((export_name("TS_Score_channel_penalty_msat"))) TS_Score_
 }
 
 void  __attribute__((export_name("TS_Score_payment_path_failed"))) TS_Score_payment_path_failed(uint32_t this_arg, uint32_tArray path, int64_t short_channel_id) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
@@ -8816,7 +8829,7 @@ void  __attribute__((export_name("TS_Score_payment_path_failed"))) TS_Score_paym
                path_constr.data = MALLOC(path_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
        else
                path_constr.data = NULL;
-       uint32_t* path_vals = path->elems;
+       uint32_t* path_vals = path->elems /* XXX path leaks */;
        for (size_t k = 0; k < path_constr.datalen; k++) {
                uint32_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
@@ -8830,7 +8843,7 @@ void  __attribute__((export_name("TS_Score_payment_path_failed"))) TS_Score_paym
 }
 
 void  __attribute__((export_name("TS_Score_payment_path_successful"))) TS_Score_payment_path_successful(uint32_t this_arg, uint32_tArray path) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
@@ -8839,7 +8852,7 @@ void  __attribute__((export_name("TS_Score_payment_path_successful"))) TS_Score_
                path_constr.data = MALLOC(path_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
        else
                path_constr.data = NULL;
-       uint32_t* path_vals = path->elems;
+       uint32_t* path_vals = path->elems /* XXX path leaks */;
        for (size_t k = 0; k < path_constr.datalen; k++) {
                uint32_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
@@ -8853,11 +8866,11 @@ void  __attribute__((export_name("TS_Score_payment_path_successful"))) TS_Score_
 }
 
 int8_tArray  __attribute__((export_name("TS_Score_write"))) TS_Score_write(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -8876,7 +8889,7 @@ static void LDKLockableScore_JCalls_free(void* this_arg) {
 LDKScore lock_LDKLockableScore_jcall(const void* this_arg) {
        LDKLockableScore_JCalls *j_calls = (LDKLockableScore_JCalls*) this_arg;
        uint32_t ret = js_invoke_function_0(j_calls->instance_ptr, 86);
-       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
        CHECK_ACCESS(ret_ptr);
        LDKScore ret_conv = *(LDKScore*)(ret_ptr);// Warning: we may need a move here but no clone is available for LDKScore
        
@@ -8904,12 +8917,12 @@ long  __attribute__((export_name("TS_LDKLockableScore_new"))) TS_LDKLockableScor
        return (long)res_ptr;
 }
 uint32_t  __attribute__((export_name("TS_LockableScore_lock"))) TS_LockableScore_lock(uint32_t this_arg) {
-       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
        if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
        LDKLockableScore* this_arg_conv = (LDKLockableScore*)this_arg_ptr;
        LDKScore* ret_ret = MALLOC(sizeof(LDKScore), "LDKScore");
        *ret_ret = (this_arg_conv->lock)(this_arg_conv->this_arg);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 jstring  __attribute__((export_name("TS__ldk_get_compiled_version"))) TS__ldk_get_compiled_version() {
@@ -8930,7 +8943,7 @@ void  __attribute__((export_name("TS_Transaction_free"))) TS_Transaction_free(in
        LDKTransaction _res_ref;
        _res_ref.datalen = _res->arr_len;
        _res_ref.data = MALLOC(_res_ref.datalen, "LDKTransaction Bytes");
-       memcpy(_res_ref.data, _res->elems, _res_ref.datalen);
+       memcpy(_res_ref.data, _res->elems, _res_ref.datalen); FREE(_res);
        _res_ref.data_is_owned = true;
        Transaction_free(_res_ref);
 }
@@ -8939,15 +8952,15 @@ uint32_t  __attribute__((export_name("TS_TxOut_new"))) TS_TxOut_new(int8_tArray
        LDKCVec_u8Z script_pubkey_ref;
        script_pubkey_ref.datalen = script_pubkey->arr_len;
        script_pubkey_ref.data = MALLOC(script_pubkey_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(script_pubkey_ref.data, script_pubkey->elems, script_pubkey_ref.datalen);
+       memcpy(script_pubkey_ref.data, script_pubkey->elems, script_pubkey_ref.datalen); FREE(script_pubkey);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_new(script_pubkey_ref, value);
-       return (uint64_t)ret_ref;
+       return (uintptr_t)ret_ref;
 }
 
 void  __attribute__((export_name("TS_TxOut_free"))) TS_TxOut_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKTxOut _res_conv = *(LDKTxOut*)(_res_ptr);
        FREE((void*)_res);
@@ -8957,11 +8970,11 @@ void  __attribute__((export_name("TS_TxOut_free"))) TS_TxOut_free(uint32_t _res)
 static inline uintptr_t TxOut_clone_ptr(LDKTxOut *NONNULL_PTR arg) {
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_clone(arg);
-       return (uint64_t)ret_ref;
+       return (uintptr_t)ret_ref;
 }
-int64_t  __attribute__((export_name("TS_TxOut_clone_ptr"))) TS_TxOut_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_TxOut_clone_ptr"))) TS_TxOut_clone_ptr(uint32_t arg) {
        LDKTxOut* arg_conv = (LDKTxOut*)(arg & ~1);
-       int64_t ret_val = TxOut_clone_ptr(arg_conv);
+       intptr_t ret_val = TxOut_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -8969,7 +8982,7 @@ uint32_t  __attribute__((export_name("TS_TxOut_clone"))) TS_TxOut_clone(uint32_t
        LDKTxOut* orig_conv = (LDKTxOut*)(orig & ~1);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_clone(orig_conv);
-       return (uint64_t)ret_ref;
+       return (uintptr_t)ret_ref;
 }
 
 void  __attribute__((export_name("TS_Str_free"))) TS_Str_free(jstring _res) {
@@ -8985,7 +8998,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_ok"))
        o_conv = ChannelConfig_clone(&o_conv);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_err"))) TS_CResult_ChannelConfigDecodeErrorZ_err(uint32_t e) {
@@ -8996,7 +9009,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_is_ok"))) TS_CResult_ChannelConfigDecodeErrorZ_is_ok(uint32_t o) {
@@ -9007,7 +9020,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_free"))) TS_CResult_ChannelConfigDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelConfigDecodeErrorZ _res_conv = *(LDKCResult_ChannelConfigDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9017,11 +9030,11 @@ void  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_free")))
 static inline uintptr_t CResult_ChannelConfigDecodeErrorZ_clone_ptr(LDKCResult_ChannelConfigDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelConfigDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelConfigDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelConfigDecodeErrorZ* arg_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelConfigDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelConfigDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9029,7 +9042,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelConfigDecodeErrorZ_clone
        LDKCResult_ChannelConfigDecodeErrorZ* orig_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_ok"))) TS_CResult_OutPointDecodeErrorZ_ok(uint32_t o) {
@@ -9040,7 +9053,7 @@ uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_ok"))) TS_
        o_conv = OutPoint_clone(&o_conv);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_err"))) TS_CResult_OutPointDecodeErrorZ_err(uint32_t e) {
@@ -9051,7 +9064,7 @@ uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_err"))) TS
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_is_ok"))) TS_CResult_OutPointDecodeErrorZ_is_ok(uint32_t o) {
@@ -9062,7 +9075,7 @@ jboolean  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_free"))) TS_CResult_OutPointDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_OutPointDecodeErrorZ _res_conv = *(LDKCResult_OutPointDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9072,11 +9085,11 @@ void  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_OutPointDecodeErrorZ_clone_ptr(LDKCResult_OutPointDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_clone_ptr"))) TS_CResult_OutPointDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_clone_ptr"))) TS_CResult_OutPointDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_OutPointDecodeErrorZ* arg_conv = (LDKCResult_OutPointDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_OutPointDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_OutPointDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9084,23 +9097,23 @@ uint32_t  __attribute__((export_name("TS_CResult_OutPointDecodeErrorZ_clone")))
        LDKCResult_OutPointDecodeErrorZ* orig_conv = (LDKCResult_OutPointDecodeErrorZ*)(orig & ~1);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_ok"))) TS_CResult_SecretKeyErrorZ_ok(int8_tArray o) {
        LDKSecretKey o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.bytes, o->elems, 32);
+       memcpy(o_ref.bytes, o->elems, 32); FREE(o);
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_err"))) TS_CResult_SecretKeyErrorZ_err(uint32_t e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_js(e);
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_is_ok"))) TS_CResult_SecretKeyErrorZ_is_ok(uint32_t o) {
@@ -9111,7 +9124,7 @@ jboolean  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_is_ok"))) TS_CR
 
 void  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_free"))) TS_CResult_SecretKeyErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SecretKeyErrorZ _res_conv = *(LDKCResult_SecretKeyErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9121,17 +9134,17 @@ void  __attribute__((export_name("TS_CResult_SecretKeyErrorZ_free"))) TS_CResult
 uint32_t  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_ok"))) TS_CResult_PublicKeyErrorZ_ok(int8_tArray o) {
        LDKPublicKey o_ref;
        CHECK(o->arr_len == 33);
-       memcpy(o_ref.compressed_form, o->elems, 33);
+       memcpy(o_ref.compressed_form, o->elems, 33); FREE(o);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_err"))) TS_CResult_PublicKeyErrorZ_err(uint32_t e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_js(e);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_is_ok"))) TS_CResult_PublicKeyErrorZ_is_ok(uint32_t o) {
@@ -9142,7 +9155,7 @@ jboolean  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_is_ok"))) TS_CR
 
 void  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_free"))) TS_CResult_PublicKeyErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PublicKeyErrorZ _res_conv = *(LDKCResult_PublicKeyErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9152,11 +9165,11 @@ void  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_free"))) TS_CResult
 static inline uintptr_t CResult_PublicKeyErrorZ_clone_ptr(LDKCResult_PublicKeyErrorZ *NONNULL_PTR arg) {
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_clone_ptr"))) TS_CResult_PublicKeyErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_clone_ptr"))) TS_CResult_PublicKeyErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PublicKeyErrorZ* arg_conv = (LDKCResult_PublicKeyErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PublicKeyErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PublicKeyErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9164,7 +9177,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PublicKeyErrorZ_clone"))) TS_CR
        LDKCResult_PublicKeyErrorZ* orig_conv = (LDKCResult_PublicKeyErrorZ*)(orig & ~1);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_ok"))) TS_CResult_TxCreationKeysDecodeErrorZ_ok(uint32_t o) {
@@ -9175,7 +9188,7 @@ uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_ok")
        o_conv = TxCreationKeys_clone(&o_conv);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_err"))) TS_CResult_TxCreationKeysDecodeErrorZ_err(uint32_t e) {
@@ -9186,7 +9199,7 @@ uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_is_ok"))) TS_CResult_TxCreationKeysDecodeErrorZ_is_ok(uint32_t o) {
@@ -9197,7 +9210,7 @@ jboolean  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_free"))) TS_CResult_TxCreationKeysDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxCreationKeysDecodeErrorZ _res_conv = *(LDKCResult_TxCreationKeysDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9207,11 +9220,11 @@ void  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_free")))
 static inline uintptr_t CResult_TxCreationKeysDecodeErrorZ_clone_ptr(LDKCResult_TxCreationKeysDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_clone_ptr"))) TS_CResult_TxCreationKeysDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_clone_ptr"))) TS_CResult_TxCreationKeysDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_TxCreationKeysDecodeErrorZ* arg_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_TxCreationKeysDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_TxCreationKeysDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9219,7 +9232,7 @@ uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysDecodeErrorZ_clon
        LDKCResult_TxCreationKeysDecodeErrorZ* orig_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(orig & ~1);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_ok"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_ok(uint32_t o) {
@@ -9230,7 +9243,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_o
        o_conv = ChannelPublicKeys_clone(&o_conv);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_err"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_err(uint32_t e) {
@@ -9241,7 +9254,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_e
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_is_ok"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_is_ok(uint32_t o) {
@@ -9252,7 +9265,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_i
 
 void  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_free"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelPublicKeysDecodeErrorZ _res_conv = *(LDKCResult_ChannelPublicKeysDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9262,11 +9275,11 @@ void  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_free"
 static inline uintptr_t CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(LDKCResult_ChannelPublicKeysDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelPublicKeysDecodeErrorZ* arg_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9274,7 +9287,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelPublicKeysDecodeErrorZ_c
        LDKCResult_ChannelPublicKeysDecodeErrorZ* orig_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_ok"))) TS_CResult_TxCreationKeysErrorZ_ok(uint32_t o) {
@@ -9285,14 +9298,14 @@ uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_ok"))) TS_
        o_conv = TxCreationKeys_clone(&o_conv);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_err"))) TS_CResult_TxCreationKeysErrorZ_err(uint32_t e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_js(e);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_is_ok"))) TS_CResult_TxCreationKeysErrorZ_is_ok(uint32_t o) {
@@ -9303,7 +9316,7 @@ jboolean  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_free"))) TS_CResult_TxCreationKeysErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxCreationKeysErrorZ _res_conv = *(LDKCResult_TxCreationKeysErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9313,11 +9326,11 @@ void  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_TxCreationKeysErrorZ_clone_ptr(LDKCResult_TxCreationKeysErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_clone_ptr"))) TS_CResult_TxCreationKeysErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_clone_ptr"))) TS_CResult_TxCreationKeysErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_TxCreationKeysErrorZ* arg_conv = (LDKCResult_TxCreationKeysErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_TxCreationKeysErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_TxCreationKeysErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9325,26 +9338,26 @@ uint32_t  __attribute__((export_name("TS_CResult_TxCreationKeysErrorZ_clone")))
        LDKCResult_TxCreationKeysErrorZ* orig_conv = (LDKCResult_TxCreationKeysErrorZ*)(orig & ~1);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_u32Z_some"))) TS_COption_u32Z_some(int32_t o) {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_some(o);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_u32Z_none"))) TS_COption_u32Z_none() {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_u32Z_free"))) TS_COption_u32Z_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u32Z _res_conv = *(LDKCOption_u32Z*)(_res_ptr);
        FREE((void*)_res);
@@ -9354,12 +9367,12 @@ void  __attribute__((export_name("TS_COption_u32Z_free"))) TS_COption_u32Z_free(
 static inline uintptr_t COption_u32Z_clone_ptr(LDKCOption_u32Z *NONNULL_PTR arg) {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_u32Z_clone_ptr"))) TS_COption_u32Z_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_u32Z_clone_ptr"))) TS_COption_u32Z_clone_ptr(uint32_t arg) {
        LDKCOption_u32Z* arg_conv = (LDKCOption_u32Z*)arg;
-       int64_t ret_val = COption_u32Z_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_u32Z_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9367,7 +9380,7 @@ uint32_t  __attribute__((export_name("TS_COption_u32Z_clone"))) TS_COption_u32Z_
        LDKCOption_u32Z* orig_conv = (LDKCOption_u32Z*)orig;
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -9379,7 +9392,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErr
        o_conv = HTLCOutputInCommitment_clone(&o_conv);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_err"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_err(uint32_t e) {
@@ -9390,7 +9403,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_is_ok"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_is_ok(uint32_t o) {
@@ -9401,7 +9414,7 @@ jboolean  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErr
 
 void  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_free"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ _res_conv = *(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9411,11 +9424,11 @@ void  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_
 static inline uintptr_t CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr"))) TS_CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* arg_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9423,7 +9436,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCOutputInCommitmentDecodeErr
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* orig_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(orig & ~1);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_NoneZ_some"))) TS_COption_NoneZ_some() {
@@ -9449,7 +9462,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionP
        o_conv = CounterpartyChannelTransactionParameters_clone(&o_conv);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_err"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_err(uint32_t e) {
@@ -9460,7 +9473,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionP
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_is_ok"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_is_ok(uint32_t o) {
@@ -9471,7 +9484,7 @@ jboolean  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionP
 
 void  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_free"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9481,11 +9494,11 @@ void  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParam
 static inline uintptr_t CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr"))) TS_CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9493,7 +9506,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CounterpartyChannelTransactionP
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(orig & ~1);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_ok"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_ok(uint32_t o) {
@@ -9504,7 +9517,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDec
        o_conv = ChannelTransactionParameters_clone(&o_conv);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_err"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_err(uint32_t e) {
@@ -9515,7 +9528,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDec
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_is_ok"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_is_ok(uint32_t o) {
@@ -9526,7 +9539,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDec
 
 void  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_free"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9536,11 +9549,11 @@ void  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeE
 static inline uintptr_t CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_ChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9548,7 +9561,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelTransactionParametersDec
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_SignatureZ_free"))) TS_CVec_SignatureZ_free(ptrArray _res) {
@@ -9558,12 +9571,12 @@ void  __attribute__((export_name("TS_CVec_SignatureZ_free"))) TS_CVec_SignatureZ
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                _res_constr.data = NULL;
-       int8_tArray* _res_vals = (void*) _res->elems;
+       int8_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int8_tArray _res_conv_12 = _res_vals[m];
                LDKSignature _res_conv_12_ref;
                CHECK(_res_conv_12->arr_len == 64);
-               memcpy(_res_conv_12_ref.compact_form, _res_conv_12->elems, 64);
+               memcpy(_res_conv_12_ref.compact_form, _res_conv_12->elems, 64); FREE(_res_conv_12);
                _res_constr.data[m] = _res_conv_12_ref;
        }
        CVec_SignatureZ_free(_res_constr);
@@ -9577,7 +9590,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDeco
        o_conv = HolderCommitmentTransaction_clone(&o_conv);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_err"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_err(uint32_t e) {
@@ -9588,7 +9601,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDeco
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_is_ok"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_is_ok(uint32_t o) {
@@ -9599,7 +9612,7 @@ jboolean  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDeco
 
 void  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_free"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9609,11 +9622,11 @@ void  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeEr
 static inline uintptr_t CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_HolderCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9621,7 +9634,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HolderCommitmentTransactionDeco
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(orig & ~1);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_ok"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_ok(uint32_t o) {
@@ -9632,7 +9645,7 @@ uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecod
        o_conv = BuiltCommitmentTransaction_clone(&o_conv);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_err"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_err(uint32_t e) {
@@ -9643,7 +9656,7 @@ uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecod
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_is_ok"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_is_ok(uint32_t o) {
@@ -9654,7 +9667,7 @@ jboolean  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecod
 
 void  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_free"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9664,11 +9677,11 @@ void  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErr
 static inline uintptr_t CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9676,7 +9689,7 @@ uint32_t  __attribute__((export_name("TS_CResult_BuiltCommitmentTransactionDecod
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(orig & ~1);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_ok"))) TS_CResult_TrustedClosingTransactionNoneZ_ok(uint32_t o) {
@@ -9687,13 +9700,13 @@ uint32_t  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_
        // Warning: we need a move here but no clone is available for LDKTrustedClosingTransaction
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = CResult_TrustedClosingTransactionNoneZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_err"))) TS_CResult_TrustedClosingTransactionNoneZ_err() {
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = CResult_TrustedClosingTransactionNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_is_ok"))) TS_CResult_TrustedClosingTransactionNoneZ_is_ok(uint32_t o) {
@@ -9704,7 +9717,7 @@ jboolean  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_
 
 void  __attribute__((export_name("TS_CResult_TrustedClosingTransactionNoneZ_free"))) TS_CResult_TrustedClosingTransactionNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TrustedClosingTransactionNoneZ _res_conv = *(LDKCResult_TrustedClosingTransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9719,7 +9732,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErro
        o_conv = CommitmentTransaction_clone(&o_conv);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_err"))) TS_CResult_CommitmentTransactionDecodeErrorZ_err(uint32_t e) {
@@ -9730,7 +9743,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErro
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_is_ok"))) TS_CResult_CommitmentTransactionDecodeErrorZ_is_ok(uint32_t o) {
@@ -9741,7 +9754,7 @@ jboolean  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErro
 
 void  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_free"))) TS_CResult_CommitmentTransactionDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_CommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9751,11 +9764,11 @@ void  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_f
 static inline uintptr_t CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_CommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErrorZ_clone_ptr"))) TS_CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_CommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9763,7 +9776,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentTransactionDecodeErro
        LDKCResult_CommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(orig & ~1);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNoneZ_ok"))) TS_CResult_TrustedCommitmentTransactionNoneZ_ok(uint32_t o) {
@@ -9774,13 +9787,13 @@ uint32_t  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNon
        // Warning: we need a move here but no clone is available for LDKTrustedCommitmentTransaction
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CResult_TrustedCommitmentTransactionNoneZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNoneZ_err"))) TS_CResult_TrustedCommitmentTransactionNoneZ_err() {
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CResult_TrustedCommitmentTransactionNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNoneZ_is_ok"))) TS_CResult_TrustedCommitmentTransactionNoneZ_is_ok(uint32_t o) {
@@ -9791,7 +9804,7 @@ jboolean  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNon
 
 void  __attribute__((export_name("TS_CResult_TrustedCommitmentTransactionNoneZ_free"))) TS_CResult_TrustedCommitmentTransactionNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TrustedCommitmentTransactionNoneZ _res_conv = *(LDKCResult_TrustedCommitmentTransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9805,23 +9818,23 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_ok"))) TS_
                o_constr.data = MALLOC(o_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                o_constr.data = NULL;
-       int8_tArray* o_vals = (void*) o->elems;
+       int8_tArray* o_vals = (void*) o->elems /* XXX o leaks */;
        for (size_t m = 0; m < o_constr.datalen; m++) {
                int8_tArray o_conv_12 = o_vals[m];
                LDKSignature o_conv_12_ref;
                CHECK(o_conv_12->arr_len == 64);
-               memcpy(o_conv_12_ref.compact_form, o_conv_12->elems, 64);
+               memcpy(o_conv_12_ref.compact_form, o_conv_12->elems, 64); FREE(o_conv_12);
                o_constr.data[m] = o_conv_12_ref;
        }
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_ok(o_constr);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_err"))) TS_CResult_CVec_SignatureZNoneZ_err() {
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_is_ok"))) TS_CResult_CVec_SignatureZNoneZ_is_ok(uint32_t o) {
@@ -9832,7 +9845,7 @@ jboolean  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_free"))) TS_CResult_CVec_SignatureZNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_SignatureZNoneZ _res_conv = *(LDKCResult_CVec_SignatureZNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9842,11 +9855,11 @@ void  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_free"))) TS_CR
 static inline uintptr_t CResult_CVec_SignatureZNoneZ_clone_ptr(LDKCResult_CVec_SignatureZNoneZ *NONNULL_PTR arg) {
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_clone_ptr"))) TS_CResult_CVec_SignatureZNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_clone_ptr"))) TS_CResult_CVec_SignatureZNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_CVec_SignatureZNoneZ* arg_conv = (LDKCResult_CVec_SignatureZNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_CVec_SignatureZNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CVec_SignatureZNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9854,7 +9867,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_SignatureZNoneZ_clone")))
        LDKCResult_CVec_SignatureZNoneZ* orig_conv = (LDKCResult_CVec_SignatureZNoneZ*)(orig & ~1);
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_ok"))) TS_CResult_ShutdownScriptDecodeErrorZ_ok(uint32_t o) {
@@ -9865,7 +9878,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_ok")
        o_conv = ShutdownScript_clone(&o_conv);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_err"))) TS_CResult_ShutdownScriptDecodeErrorZ_err(uint32_t e) {
@@ -9876,7 +9889,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_is_ok"))) TS_CResult_ShutdownScriptDecodeErrorZ_is_ok(uint32_t o) {
@@ -9887,7 +9900,7 @@ jboolean  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_free"))) TS_CResult_ShutdownScriptDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownScriptDecodeErrorZ _res_conv = *(LDKCResult_ShutdownScriptDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9897,11 +9910,11 @@ void  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_free")))
 static inline uintptr_t CResult_ShutdownScriptDecodeErrorZ_clone_ptr(LDKCResult_ShutdownScriptDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_clone_ptr"))) TS_CResult_ShutdownScriptDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_clone_ptr"))) TS_CResult_ShutdownScriptDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ShutdownScriptDecodeErrorZ* arg_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ShutdownScriptDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ShutdownScriptDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9909,7 +9922,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptDecodeErrorZ_clon
        LDKCResult_ShutdownScriptDecodeErrorZ* orig_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(orig & ~1);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_ok"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_ok(uint32_t o) {
@@ -9920,7 +9933,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownSc
        o_conv = ShutdownScript_clone(&o_conv);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_err"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_err(uint32_t e) {
@@ -9931,7 +9944,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownSc
        e_conv = InvalidShutdownScript_clone(&e_conv);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_is_ok"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_is_ok(uint32_t o) {
@@ -9942,7 +9955,7 @@ jboolean  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownSc
 
 void  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_free"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ _res_conv = *(LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9952,11 +9965,11 @@ void  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScript
 static inline uintptr_t CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(LDKCResult_ShutdownScriptInvalidShutdownScriptZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr"))) TS_CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(uint32_t arg) {
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* arg_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(arg & ~1);
-       int64_t ret_val = CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -9964,29 +9977,29 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownScriptInvalidShutdownSc
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* orig_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(orig & ~1);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_TypeZ_some"))) TS_COption_TypeZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKType o_conv = *(LDKType*)(o_ptr);
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_TypeZ_none"))) TS_COption_TypeZ_none() {
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_TypeZ_free"))) TS_COption_TypeZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_TypeZ _res_conv = *(LDKCOption_TypeZ*)(_res_ptr);
        FREE((void*)_res);
@@ -9996,12 +10009,12 @@ void  __attribute__((export_name("TS_COption_TypeZ_free"))) TS_COption_TypeZ_fre
 static inline uintptr_t COption_TypeZ_clone_ptr(LDKCOption_TypeZ *NONNULL_PTR arg) {
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_TypeZ_clone_ptr"))) TS_COption_TypeZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_TypeZ_clone_ptr"))) TS_COption_TypeZ_clone_ptr(uint32_t arg) {
        LDKCOption_TypeZ* arg_conv = (LDKCOption_TypeZ*)arg;
-       int64_t ret_val = COption_TypeZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_TypeZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10009,18 +10022,18 @@ uint32_t  __attribute__((export_name("TS_COption_TypeZ_clone"))) TS_COption_Type
        LDKCOption_TypeZ* orig_conv = (LDKCOption_TypeZ*)orig;
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_ok"))) TS_CResult_COption_TypeZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKCOption_TypeZ o_conv = *(LDKCOption_TypeZ*)(o_ptr);
-       o_conv = COption_TypeZ_clone((LDKCOption_TypeZ*)(((uint64_t)o) & ~1));
+       o_conv = COption_TypeZ_clone((LDKCOption_TypeZ*)(((uintptr_t)o) & ~1));
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_err"))) TS_CResult_COption_TypeZDecodeErrorZ_err(uint32_t e) {
@@ -10031,7 +10044,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_is_ok"))) TS_CResult_COption_TypeZDecodeErrorZ_is_ok(uint32_t o) {
@@ -10042,7 +10055,7 @@ jboolean  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_free"))) TS_CResult_COption_TypeZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_TypeZDecodeErrorZ _res_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10052,11 +10065,11 @@ void  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_free")))
 static inline uintptr_t CResult_COption_TypeZDecodeErrorZ_clone_ptr(LDKCResult_COption_TypeZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_TypeZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_TypeZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_COption_TypeZDecodeErrorZ* arg_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_COption_TypeZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_COption_TypeZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10064,21 +10077,21 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_TypeZDecodeErrorZ_clone
        LDKCResult_COption_TypeZDecodeErrorZ* orig_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(orig & ~1);
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_StringErrorZ_ok"))) TS_CResult_StringErrorZ_ok(jstring o) {
        LDKStr o_conv = str_ref_to_owned_c(o);
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_StringErrorZ_err"))) TS_CResult_StringErrorZ_err(uint32_t e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_js(e);
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_StringErrorZ_is_ok"))) TS_CResult_StringErrorZ_is_ok(uint32_t o) {
@@ -10089,7 +10102,7 @@ jboolean  __attribute__((export_name("TS_CResult_StringErrorZ_is_ok"))) TS_CResu
 
 void  __attribute__((export_name("TS_CResult_StringErrorZ_free"))) TS_CResult_StringErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_StringErrorZ _res_conv = *(LDKCResult_StringErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10104,7 +10117,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeError
        o_conv = ChannelMonitorUpdate_clone(&o_conv);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_err"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_err(uint32_t e) {
@@ -10115,7 +10128,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeError
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_is_ok"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_is_ok(uint32_t o) {
@@ -10126,7 +10139,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeError
 
 void  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_free"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10136,11 +10149,11 @@ void  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_fr
 static inline uintptr_t CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelMonitorUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10148,30 +10161,30 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelMonitorUpdateDecodeError
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_MonitorEventZ_some"))) TS_COption_MonitorEventZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKMonitorEvent o_conv = *(LDKMonitorEvent*)(o_ptr);
-       o_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uint64_t)o) & ~1));
+       o_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uintptr_t)o) & ~1));
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_MonitorEventZ_none"))) TS_COption_MonitorEventZ_none() {
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_MonitorEventZ_free"))) TS_COption_MonitorEventZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_MonitorEventZ _res_conv = *(LDKCOption_MonitorEventZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10181,12 +10194,12 @@ void  __attribute__((export_name("TS_COption_MonitorEventZ_free"))) TS_COption_M
 static inline uintptr_t COption_MonitorEventZ_clone_ptr(LDKCOption_MonitorEventZ *NONNULL_PTR arg) {
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_MonitorEventZ_clone_ptr"))) TS_COption_MonitorEventZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_MonitorEventZ_clone_ptr"))) TS_COption_MonitorEventZ_clone_ptr(uint32_t arg) {
        LDKCOption_MonitorEventZ* arg_conv = (LDKCOption_MonitorEventZ*)arg;
-       int64_t ret_val = COption_MonitorEventZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_MonitorEventZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10194,18 +10207,18 @@ uint32_t  __attribute__((export_name("TS_COption_MonitorEventZ_clone"))) TS_COpt
        LDKCOption_MonitorEventZ* orig_conv = (LDKCOption_MonitorEventZ*)orig;
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_ok"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKCOption_MonitorEventZ o_conv = *(LDKCOption_MonitorEventZ*)(o_ptr);
-       o_conv = COption_MonitorEventZ_clone((LDKCOption_MonitorEventZ*)(((uint64_t)o) & ~1));
+       o_conv = COption_MonitorEventZ_clone((LDKCOption_MonitorEventZ*)(((uintptr_t)o) & ~1));
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_err"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_err(uint32_t e) {
@@ -10216,7 +10229,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErro
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_is_ok"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_is_ok(uint32_t o) {
@@ -10227,7 +10240,7 @@ jboolean  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErro
 
 void  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_free"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_MonitorEventZDecodeErrorZ _res_conv = *(LDKCResult_COption_MonitorEventZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10237,11 +10250,11 @@ void  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_f
 static inline uintptr_t CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(LDKCResult_COption_MonitorEventZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_COption_MonitorEventZDecodeErrorZ* arg_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10249,7 +10262,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_MonitorEventZDecodeErro
        LDKCResult_COption_MonitorEventZDecodeErrorZ* orig_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(orig & ~1);
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_ok"))) TS_CResult_HTLCUpdateDecodeErrorZ_ok(uint32_t o) {
@@ -10260,7 +10273,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_ok"))) T
        o_conv = HTLCUpdate_clone(&o_conv);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_err"))) TS_CResult_HTLCUpdateDecodeErrorZ_err(uint32_t e) {
@@ -10271,7 +10284,7 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_err")))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_is_ok"))) TS_CResult_HTLCUpdateDecodeErrorZ_is_ok(uint32_t o) {
@@ -10282,7 +10295,7 @@ jboolean  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_is_ok"))
 
 void  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_free"))) TS_CResult_HTLCUpdateDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HTLCUpdateDecodeErrorZ _res_conv = *(LDKCResult_HTLCUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10292,11 +10305,11 @@ void  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_free"))) TS_
 static inline uintptr_t CResult_HTLCUpdateDecodeErrorZ_clone_ptr(LDKCResult_HTLCUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_HTLCUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_HTLCUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_HTLCUpdateDecodeErrorZ* arg_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_HTLCUpdateDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_HTLCUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10304,19 +10317,19 @@ uint32_t  __attribute__((export_name("TS_CResult_HTLCUpdateDecodeErrorZ_clone"))
        LDKCResult_HTLCUpdateDecodeErrorZ* orig_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(orig & ~1);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneNoneZ_ok"))) TS_CResult_NoneNoneZ_ok() {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneNoneZ_err"))) TS_CResult_NoneNoneZ_err() {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NoneNoneZ_is_ok"))) TS_CResult_NoneNoneZ_is_ok(uint32_t o) {
@@ -10327,7 +10340,7 @@ jboolean  __attribute__((export_name("TS_CResult_NoneNoneZ_is_ok"))) TS_CResult_
 
 void  __attribute__((export_name("TS_CResult_NoneNoneZ_free"))) TS_CResult_NoneNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneNoneZ _res_conv = *(LDKCResult_NoneNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10337,11 +10350,11 @@ void  __attribute__((export_name("TS_CResult_NoneNoneZ_free"))) TS_CResult_NoneN
 static inline uintptr_t CResult_NoneNoneZ_clone_ptr(LDKCResult_NoneNoneZ *NONNULL_PTR arg) {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NoneNoneZ_clone_ptr"))) TS_CResult_NoneNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NoneNoneZ_clone_ptr"))) TS_CResult_NoneNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_NoneNoneZ* arg_conv = (LDKCResult_NoneNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_NoneNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NoneNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10349,7 +10362,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneNoneZ_clone"))) TS_CResult_
        LDKCResult_NoneNoneZ* orig_conv = (LDKCResult_NoneNoneZ*)(orig & ~1);
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_OutPointScriptZ_new"))) TS_C2Tuple_OutPointScriptZ_new(uint32_t a, int8_tArray b) {
@@ -10361,15 +10374,15 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_OutPointScriptZ_new"))) TS_C2Tu
        LDKCVec_u8Z b_ref;
        b_ref.datalen = b->arr_len;
        b_ref.data = MALLOC(b_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(b_ref.data, b->elems, b_ref.datalen);
+       memcpy(b_ref.data, b->elems, b_ref.datalen); FREE(b);
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = C2Tuple_OutPointScriptZ_new(a_conv, b_ref);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_OutPointScriptZ_free"))) TS_C2Tuple_OutPointScriptZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_OutPointScriptZ _res_conv = *(LDKC2Tuple_OutPointScriptZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10380,15 +10393,15 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_u32ScriptZ_new"))) TS_C2Tuple_u
        LDKCVec_u8Z b_ref;
        b_ref.datalen = b->arr_len;
        b_ref.data = MALLOC(b_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(b_ref.data, b->elems, b_ref.datalen);
+       memcpy(b_ref.data, b->elems, b_ref.datalen); FREE(b);
        LDKC2Tuple_u32ScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
        *ret_conv = C2Tuple_u32ScriptZ_new(a, b_ref);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_u32ScriptZ_free"))) TS_C2Tuple_u32ScriptZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_u32ScriptZ _res_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10402,10 +10415,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_u32ScriptZZ_free"))) TS_CVec_C
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_u32ScriptZ), "LDKCVec_C2Tuple_u32ScriptZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t v = 0; v < _res_constr.datalen; v++) {
                uint32_t _res_conv_21 = _res_vals[v];
-               void* _res_conv_21_ptr = (void*)(((uint64_t)_res_conv_21) & ~1);
+               void* _res_conv_21_ptr = (void*)(((uintptr_t)_res_conv_21) & ~1);
                CHECK_ACCESS(_res_conv_21_ptr);
                LDKC2Tuple_u32ScriptZ _res_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_conv_21_ptr);
                FREE((void*)_res_conv_21);
@@ -10417,17 +10430,17 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_u32ScriptZZ_free"))) TS_CVec_C
 uint32_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_new"))) TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_new(int8_tArray a, uint32_tArray b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKCVec_C2Tuple_u32ScriptZZ b_constr;
        b_constr.datalen = b->arr_len;
        if (b_constr.datalen > 0)
                b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKC2Tuple_u32ScriptZ), "LDKCVec_C2Tuple_u32ScriptZZ Elements");
        else
                b_constr.data = NULL;
-       uint32_t* b_vals = b->elems;
+       uint32_t* b_vals = b->elems /* XXX b leaks */;
        for (size_t v = 0; v < b_constr.datalen; v++) {
                uint32_t b_conv_21 = b_vals[v];
-               void* b_conv_21_ptr = (void*)(((uint64_t)b_conv_21) & ~1);
+               void* b_conv_21_ptr = (void*)(((uintptr_t)b_conv_21) & ~1);
                CHECK_ACCESS(b_conv_21_ptr);
                LDKC2Tuple_u32ScriptZ b_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(b_conv_21_ptr);
                // Warning: we may need a move here but no clone is available for LDKC2Tuple_u32ScriptZ
@@ -10435,12 +10448,12 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_n
        }
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_new(a_ref, b_constr);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_free"))) TS_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10454,10 +10467,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                uint32_t _res_conv_40 = _res_vals[o];
-               void* _res_conv_40_ptr = (void*)(((uint64_t)_res_conv_40) & ~1);
+               void* _res_conv_40_ptr = (void*)(((uintptr_t)_res_conv_40) & ~1);
                CHECK_ACCESS(_res_conv_40_ptr);
                LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv_40_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(_res_conv_40_ptr);
                FREE((void*)_res_conv_40);
@@ -10473,10 +10486,10 @@ void  __attribute__((export_name("TS_CVec_MonitorEventZ_free"))) TS_CVec_Monitor
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKMonitorEvent), "LDKCVec_MonitorEventZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                uint32_t _res_conv_14 = _res_vals[o];
-               void* _res_conv_14_ptr = (void*)(((uint64_t)_res_conv_14) & ~1);
+               void* _res_conv_14_ptr = (void*)(((uintptr_t)_res_conv_14) & ~1);
                CHECK_ACCESS(_res_conv_14_ptr);
                LDKMonitorEvent _res_conv_14_conv = *(LDKMonitorEvent*)(_res_conv_14_ptr);
                FREE((void*)_res_conv_14);
@@ -10492,10 +10505,10 @@ void  __attribute__((export_name("TS_CVec_EventZ_free"))) TS_CVec_EventZ_free(ui
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKEvent), "LDKCVec_EventZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                uint32_t _res_conv_7 = _res_vals[h];
-               void* _res_conv_7_ptr = (void*)(((uint64_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = (void*)(((uintptr_t)_res_conv_7) & ~1);
                CHECK_ACCESS(_res_conv_7_ptr);
                LDKEvent _res_conv_7_conv = *(LDKEvent*)(_res_conv_7_ptr);
                FREE((void*)_res_conv_7);
@@ -10511,13 +10524,13 @@ void  __attribute__((export_name("TS_CVec_TransactionZ_free"))) TS_CVec_Transact
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKTransaction), "LDKCVec_TransactionZ Elements");
        else
                _res_constr.data = NULL;
-       int8_tArray* _res_vals = (void*) _res->elems;
+       int8_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int8_tArray _res_conv_12 = _res_vals[m];
                LDKTransaction _res_conv_12_ref;
                _res_conv_12_ref.datalen = _res_conv_12->arr_len;
                _res_conv_12_ref.data = MALLOC(_res_conv_12_ref.datalen, "LDKTransaction Bytes");
-               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, _res_conv_12_ref.datalen);
+               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, _res_conv_12_ref.datalen); FREE(_res_conv_12);
                _res_conv_12_ref.data_is_owned = true;
                _res_constr.data[m] = _res_conv_12_ref;
        }
@@ -10527,11 +10540,11 @@ void  __attribute__((export_name("TS_CVec_TransactionZ_free"))) TS_CVec_Transact
 static inline uintptr_t C2Tuple_usizeTransactionZ_clone_ptr(LDKC2Tuple_usizeTransactionZ *NONNULL_PTR arg) {
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_clone_ptr"))) TS_C2Tuple_usizeTransactionZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_clone_ptr"))) TS_C2Tuple_usizeTransactionZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_usizeTransactionZ* arg_conv = (LDKC2Tuple_usizeTransactionZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_usizeTransactionZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_usizeTransactionZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10539,23 +10552,23 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_clone"))) TS_
        LDKC2Tuple_usizeTransactionZ* orig_conv = (LDKC2Tuple_usizeTransactionZ*)(orig & ~1);
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
-uint32_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_new"))) TS_C2Tuple_usizeTransactionZ_new(int64_t a, int8_tArray b) {
+uint32_t  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_new"))) TS_C2Tuple_usizeTransactionZ_new(intptr_t a, int8_tArray b) {
        LDKTransaction b_ref;
        b_ref.datalen = b->arr_len;
        b_ref.data = MALLOC(b_ref.datalen, "LDKTransaction Bytes");
-       memcpy(b_ref.data, b->elems, b_ref.datalen);
+       memcpy(b_ref.data, b->elems, b_ref.datalen); FREE(b);
        b_ref.data_is_owned = true;
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_new(a, b_ref);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_usizeTransactionZ_free"))) TS_C2Tuple_usizeTransactionZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_usizeTransactionZ _res_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10569,10 +10582,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_usizeTransactionZZ_free"))) TS
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_usizeTransactionZ), "LDKCVec_C2Tuple_usizeTransactionZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t c = 0; c < _res_constr.datalen; c++) {
                uint32_t _res_conv_28 = _res_vals[c];
-               void* _res_conv_28_ptr = (void*)(((uint64_t)_res_conv_28) & ~1);
+               void* _res_conv_28_ptr = (void*)(((uintptr_t)_res_conv_28) & ~1);
                CHECK_ACCESS(_res_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ _res_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_conv_28_ptr);
                FREE((void*)_res_conv_28);
@@ -10584,11 +10597,11 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_usizeTransactionZZ_free"))) TS
 static inline uintptr_t C2Tuple_u32TxOutZ_clone_ptr(LDKC2Tuple_u32TxOutZ *NONNULL_PTR arg) {
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_clone_ptr"))) TS_C2Tuple_u32TxOutZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_clone_ptr"))) TS_C2Tuple_u32TxOutZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_u32TxOutZ* arg_conv = (LDKC2Tuple_u32TxOutZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_u32TxOutZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_u32TxOutZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10596,22 +10609,22 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_clone"))) TS_C2Tuple_
        LDKC2Tuple_u32TxOutZ* orig_conv = (LDKC2Tuple_u32TxOutZ*)(orig & ~1);
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_new"))) TS_C2Tuple_u32TxOutZ_new(int32_t a, uint32_t b) {
-       void* b_ptr = (void*)(((uint64_t)b) & ~1);
+       void* b_ptr = (void*)(((uintptr_t)b) & ~1);
        CHECK_ACCESS(b_ptr);
        LDKTxOut b_conv = *(LDKTxOut*)(b_ptr);
-       b_conv = TxOut_clone((LDKTxOut*)(((uint64_t)b) & ~1));
+       b_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)b) & ~1));
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_new(a, b_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_u32TxOutZ_free"))) TS_C2Tuple_u32TxOutZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_u32TxOutZ _res_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10625,10 +10638,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_u32TxOutZZ_free"))) TS_CVec_C2
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_u32TxOutZ), "LDKCVec_C2Tuple_u32TxOutZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t u = 0; u < _res_constr.datalen; u++) {
                uint32_t _res_conv_20 = _res_vals[u];
-               void* _res_conv_20_ptr = (void*)(((uint64_t)_res_conv_20) & ~1);
+               void* _res_conv_20_ptr = (void*)(((uintptr_t)_res_conv_20) & ~1);
                CHECK_ACCESS(_res_conv_20_ptr);
                LDKC2Tuple_u32TxOutZ _res_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_conv_20_ptr);
                FREE((void*)_res_conv_20);
@@ -10640,11 +10653,11 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_u32TxOutZZ_free"))) TS_CVec_C2
 static inline uintptr_t C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ *NONNULL_PTR arg) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr"))) TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr"))) TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* arg_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10652,36 +10665,36 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_cl
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* orig_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(orig & ~1);
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_new"))) TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_new(int8_tArray a, uint32_tArray b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKCVec_C2Tuple_u32TxOutZZ b_constr;
        b_constr.datalen = b->arr_len;
        if (b_constr.datalen > 0)
                b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKC2Tuple_u32TxOutZ), "LDKCVec_C2Tuple_u32TxOutZZ Elements");
        else
                b_constr.data = NULL;
-       uint32_t* b_vals = b->elems;
+       uint32_t* b_vals = b->elems /* XXX b leaks */;
        for (size_t u = 0; u < b_constr.datalen; u++) {
                uint32_t b_conv_20 = b_vals[u];
-               void* b_conv_20_ptr = (void*)(((uint64_t)b_conv_20) & ~1);
+               void* b_conv_20_ptr = (void*)(((uintptr_t)b_conv_20) & ~1);
                CHECK_ACCESS(b_conv_20_ptr);
                LDKC2Tuple_u32TxOutZ b_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(b_conv_20_ptr);
-               b_conv_20_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)(((uint64_t)b_conv_20) & ~1));
+               b_conv_20_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)(((uintptr_t)b_conv_20) & ~1));
                b_constr.data[u] = b_conv_20_conv;
        }
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_new(a_ref, b_constr);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free"))) TS_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10695,10 +10708,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ_
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t n = 0; n < _res_constr.datalen; n++) {
                uint32_t _res_conv_39 = _res_vals[n];
-               void* _res_conv_39_ptr = (void*)(((uint64_t)_res_conv_39) & ~1);
+               void* _res_conv_39_ptr = (void*)(((uintptr_t)_res_conv_39) & ~1);
                CHECK_ACCESS(_res_conv_39_ptr);
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv_39_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(_res_conv_39_ptr);
                FREE((void*)_res_conv_39);
@@ -10714,12 +10727,12 @@ void  __attribute__((export_name("TS_CVec_TxidZ_free"))) TS_CVec_TxidZ_free(ptrA
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKThirtyTwoBytes), "LDKCVec_TxidZ Elements");
        else
                _res_constr.data = NULL;
-       int8_tArray* _res_vals = (void*) _res->elems;
+       int8_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int8_tArray _res_conv_12 = _res_vals[m];
                LDKThirtyTwoBytes _res_conv_12_ref;
                CHECK(_res_conv_12->arr_len == 32);
-               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, 32);
+               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, 32); FREE(_res_conv_12);
                _res_constr.data[m] = _res_conv_12_ref;
        }
        CVec_TxidZ_free(_res_constr);
@@ -10732,10 +10745,10 @@ void  __attribute__((export_name("TS_CVec_BalanceZ_free"))) TS_CVec_BalanceZ_fre
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKBalance), "LDKCVec_BalanceZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t j = 0; j < _res_constr.datalen; j++) {
                uint32_t _res_conv_9 = _res_vals[j];
-               void* _res_conv_9_ptr = (void*)(((uint64_t)_res_conv_9) & ~1);
+               void* _res_conv_9_ptr = (void*)(((uintptr_t)_res_conv_9) & ~1);
                CHECK_ACCESS(_res_conv_9_ptr);
                LDKBalance _res_conv_9_conv = *(LDKBalance*)(_res_conv_9_ptr);
                FREE((void*)_res_conv_9);
@@ -10747,11 +10760,11 @@ void  __attribute__((export_name("TS_CVec_BalanceZ_free"))) TS_CVec_BalanceZ_fre
 static inline uintptr_t C2Tuple_BlockHashChannelMonitorZ_clone_ptr(LDKC2Tuple_BlockHashChannelMonitorZ *NONNULL_PTR arg) {
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_clone_ptr"))) TS_C2Tuple_BlockHashChannelMonitorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_clone_ptr"))) TS_C2Tuple_BlockHashChannelMonitorZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_BlockHashChannelMonitorZ* arg_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_BlockHashChannelMonitorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_BlockHashChannelMonitorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10759,13 +10772,13 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_clone"
        LDKC2Tuple_BlockHashChannelMonitorZ* orig_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(orig & ~1);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_new"))) TS_C2Tuple_BlockHashChannelMonitorZ_new(int8_tArray a, uint32_t b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKChannelMonitor b_conv;
        b_conv.inner = (void*)(b & (~1));
        b_conv.is_owned = (b & 1) || (b == 0);
@@ -10773,12 +10786,12 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_new"))
        b_conv = ChannelMonitor_clone(&b_conv);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_new(a_ref, b_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_free"))) TS_C2Tuple_BlockHashChannelMonitorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_BlockHashChannelMonitorZ _res_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10786,13 +10799,13 @@ void  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_free"))) T
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_ok"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_BlockHashChannelMonitorZ o_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(o_ptr);
-       o_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uintptr_t)o) & ~1));
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_err"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_err(uint32_t e) {
@@ -10803,7 +10816,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitor
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_is_ok"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_is_ok(uint32_t o) {
@@ -10814,7 +10827,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitor
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_free"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10824,11 +10837,11 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDec
 static inline uintptr_t CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr"))) TS_CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* arg_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10836,7 +10849,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelMonitor
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* orig_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(orig & ~1);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_ok"))) TS_CResult_RouteHopDecodeErrorZ_ok(uint32_t o) {
@@ -10847,7 +10860,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_ok"))) TS_
        o_conv = RouteHop_clone(&o_conv);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_err"))) TS_CResult_RouteHopDecodeErrorZ_err(uint32_t e) {
@@ -10858,7 +10871,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_err"))) TS
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_is_ok"))) TS_CResult_RouteHopDecodeErrorZ_is_ok(uint32_t o) {
@@ -10869,7 +10882,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_free"))) TS_CResult_RouteHopDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHopDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10879,11 +10892,11 @@ void  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_RouteHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHopDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHopDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHopDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHopDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteHopDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteHopDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10891,7 +10904,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHopDecodeErrorZ_clone")))
        LDKCResult_RouteHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHopDecodeErrorZ*)(orig & ~1);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_RouteHopZ_free"))) TS_CVec_RouteHopZ_free(uint32_tArray _res) {
@@ -10901,7 +10914,7 @@ void  __attribute__((export_name("TS_CVec_RouteHopZ_free"))) TS_CVec_RouteHopZ_f
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                uint32_t _res_conv_10 = _res_vals[k];
                LDKRouteHop _res_conv_10_conv;
@@ -10920,7 +10933,7 @@ void  __attribute__((export_name("TS_CVec_CVec_RouteHopZZ_free"))) TS_CVec_CVec_
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKCVec_RouteHopZ), "LDKCVec_CVec_RouteHopZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_tArray* _res_vals = (void*) _res->elems;
+       uint32_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                uint32_tArray _res_conv_12 = _res_vals[m];
                LDKCVec_RouteHopZ _res_conv_12_constr;
@@ -10929,7 +10942,7 @@ void  __attribute__((export_name("TS_CVec_CVec_RouteHopZZ_free"))) TS_CVec_CVec_
                        _res_conv_12_constr.data = MALLOC(_res_conv_12_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
                else
                        _res_conv_12_constr.data = NULL;
-               uint32_t* _res_conv_12_vals = _res_conv_12->elems;
+               uint32_t* _res_conv_12_vals = _res_conv_12->elems /* XXX _res_conv_12 leaks */;
                for (size_t k = 0; k < _res_conv_12_constr.datalen; k++) {
                        uint32_t _res_conv_12_conv_10 = _res_conv_12_vals[k];
                        LDKRouteHop _res_conv_12_conv_10_conv;
@@ -10951,7 +10964,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_ok"))) TS_CRe
        o_conv = Route_clone(&o_conv);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_err"))) TS_CResult_RouteDecodeErrorZ_err(uint32_t e) {
@@ -10962,7 +10975,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_err"))) TS_CR
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_is_ok"))) TS_CResult_RouteDecodeErrorZ_is_ok(uint32_t o) {
@@ -10973,7 +10986,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_is_ok"))) TS_
 
 void  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_free"))) TS_CResult_RouteDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteDecodeErrorZ _res_conv = *(LDKCResult_RouteDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -10983,11 +10996,11 @@ void  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_free"))) TS_CResu
 static inline uintptr_t CResult_RouteDecodeErrorZ_clone_ptr(LDKCResult_RouteDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_clone_ptr"))) TS_CResult_RouteDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_clone_ptr"))) TS_CResult_RouteDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteDecodeErrorZ* arg_conv = (LDKCResult_RouteDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -10995,7 +11008,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteDecodeErrorZ_clone"))) TS_
        LDKCResult_RouteDecodeErrorZ* orig_conv = (LDKCResult_RouteDecodeErrorZ*)(orig & ~1);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_ok"))) TS_CResult_RouteParametersDecodeErrorZ_ok(uint32_t o) {
@@ -11006,7 +11019,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_ok"
        o_conv = RouteParameters_clone(&o_conv);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_err"))) TS_CResult_RouteParametersDecodeErrorZ_err(uint32_t e) {
@@ -11017,7 +11030,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_err
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_is_ok"))) TS_CResult_RouteParametersDecodeErrorZ_is_ok(uint32_t o) {
@@ -11028,7 +11041,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_is_
 
 void  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_free"))) TS_CResult_RouteParametersDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteParametersDecodeErrorZ _res_conv = *(LDKCResult_RouteParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11038,11 +11051,11 @@ void  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_free"))
 static inline uintptr_t CResult_RouteParametersDecodeErrorZ_clone_ptr(LDKCResult_RouteParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_clone_ptr"))) TS_CResult_RouteParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_clone_ptr"))) TS_CResult_RouteParametersDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteParametersDecodeErrorZ* arg_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteParametersDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11050,7 +11063,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteParametersDecodeErrorZ_clo
        LDKCResult_RouteParametersDecodeErrorZ* orig_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(orig & ~1);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_RouteHintZ_free"))) TS_CVec_RouteHintZ_free(uint32_tArray _res) {
@@ -11060,7 +11073,7 @@ void  __attribute__((export_name("TS_CVec_RouteHintZ_free"))) TS_CVec_RouteHintZ
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKRouteHint), "LDKCVec_RouteHintZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t l = 0; l < _res_constr.datalen; l++) {
                uint32_t _res_conv_11 = _res_vals[l];
                LDKRouteHint _res_conv_11_conv;
@@ -11075,20 +11088,20 @@ void  __attribute__((export_name("TS_CVec_RouteHintZ_free"))) TS_CVec_RouteHintZ
 uint32_t  __attribute__((export_name("TS_COption_u64Z_some"))) TS_COption_u64Z_some(int64_t o) {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_some(o);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_u64Z_none"))) TS_COption_u64Z_none() {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_u64Z_free"))) TS_COption_u64Z_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u64Z _res_conv = *(LDKCOption_u64Z*)(_res_ptr);
        FREE((void*)_res);
@@ -11098,12 +11111,12 @@ void  __attribute__((export_name("TS_COption_u64Z_free"))) TS_COption_u64Z_free(
 static inline uintptr_t COption_u64Z_clone_ptr(LDKCOption_u64Z *NONNULL_PTR arg) {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_u64Z_clone_ptr"))) TS_COption_u64Z_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_u64Z_clone_ptr"))) TS_COption_u64Z_clone_ptr(uint32_t arg) {
        LDKCOption_u64Z* arg_conv = (LDKCOption_u64Z*)arg;
-       int64_t ret_val = COption_u64Z_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_u64Z_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11111,7 +11124,7 @@ uint32_t  __attribute__((export_name("TS_COption_u64Z_clone"))) TS_COption_u64Z_
        LDKCOption_u64Z* orig_conv = (LDKCOption_u64Z*)orig;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -11123,7 +11136,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_ok"))) TS_CRe
        o_conv = Payee_clone(&o_conv);
        LDKCResult_PayeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeeDecodeErrorZ), "LDKCResult_PayeeDecodeErrorZ");
        *ret_conv = CResult_PayeeDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_err"))) TS_CResult_PayeeDecodeErrorZ_err(uint32_t e) {
@@ -11134,7 +11147,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_err"))) TS_CR
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PayeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeeDecodeErrorZ), "LDKCResult_PayeeDecodeErrorZ");
        *ret_conv = CResult_PayeeDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_is_ok"))) TS_CResult_PayeeDecodeErrorZ_is_ok(uint32_t o) {
@@ -11145,7 +11158,7 @@ jboolean  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_is_ok"))) TS_
 
 void  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_free"))) TS_CResult_PayeeDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PayeeDecodeErrorZ _res_conv = *(LDKCResult_PayeeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11155,11 +11168,11 @@ void  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_free"))) TS_CResu
 static inline uintptr_t CResult_PayeeDecodeErrorZ_clone_ptr(LDKCResult_PayeeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PayeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeeDecodeErrorZ), "LDKCResult_PayeeDecodeErrorZ");
        *ret_conv = CResult_PayeeDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_clone_ptr"))) TS_CResult_PayeeDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_clone_ptr"))) TS_CResult_PayeeDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PayeeDecodeErrorZ* arg_conv = (LDKCResult_PayeeDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PayeeDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PayeeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11167,7 +11180,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PayeeDecodeErrorZ_clone"))) TS_
        LDKCResult_PayeeDecodeErrorZ* orig_conv = (LDKCResult_PayeeDecodeErrorZ*)(orig & ~1);
        LDKCResult_PayeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeeDecodeErrorZ), "LDKCResult_PayeeDecodeErrorZ");
        *ret_conv = CResult_PayeeDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_RouteHintHopZ_free"))) TS_CVec_RouteHintHopZ_free(uint32_tArray _res) {
@@ -11177,7 +11190,7 @@ void  __attribute__((export_name("TS_CVec_RouteHintHopZ_free"))) TS_CVec_RouteHi
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKRouteHintHop), "LDKCVec_RouteHintHopZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                uint32_t _res_conv_14 = _res_vals[o];
                LDKRouteHintHop _res_conv_14_conv;
@@ -11197,7 +11210,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_ok"))) TS
        o_conv = RouteHint_clone(&o_conv);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_err"))) TS_CResult_RouteHintDecodeErrorZ_err(uint32_t e) {
@@ -11208,7 +11221,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_err"))) T
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_is_ok"))) TS_CResult_RouteHintDecodeErrorZ_is_ok(uint32_t o) {
@@ -11219,7 +11232,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_free"))) TS_CResult_RouteHintDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHintDecodeErrorZ _res_conv = *(LDKCResult_RouteHintDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11229,11 +11242,11 @@ void  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_free"))) TS_C
 static inline uintptr_t CResult_RouteHintDecodeErrorZ_clone_ptr(LDKCResult_RouteHintDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHintDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHintDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteHintDecodeErrorZ* arg_conv = (LDKCResult_RouteHintDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteHintDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteHintDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11241,7 +11254,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintDecodeErrorZ_clone")))
        LDKCResult_RouteHintDecodeErrorZ* orig_conv = (LDKCResult_RouteHintDecodeErrorZ*)(orig & ~1);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_ok"))) TS_CResult_RouteHintHopDecodeErrorZ_ok(uint32_t o) {
@@ -11252,7 +11265,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_ok")))
        o_conv = RouteHintHop_clone(&o_conv);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_err"))) TS_CResult_RouteHintHopDecodeErrorZ_err(uint32_t e) {
@@ -11263,7 +11276,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_is_ok"))) TS_CResult_RouteHintHopDecodeErrorZ_is_ok(uint32_t o) {
@@ -11274,7 +11287,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_free"))) TS_CResult_RouteHintHopDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHintHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHintHopDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11284,11 +11297,11 @@ void  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_free"))) T
 static inline uintptr_t CResult_RouteHintHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHintHopDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHintHopDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_clone_ptr"))) TS_CResult_RouteHintHopDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteHintHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteHintHopDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteHintHopDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11296,7 +11309,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteHintHopDecodeErrorZ_clone"
        LDKCResult_RouteHintHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(orig & ~1);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_ChannelDetailsZ_free"))) TS_CVec_ChannelDetailsZ_free(uint32_tArray _res) {
@@ -11306,7 +11319,7 @@ void  __attribute__((export_name("TS_CVec_ChannelDetailsZ_free"))) TS_CVec_Chann
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKChannelDetails), "LDKCVec_ChannelDetailsZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                uint32_t _res_conv_16 = _res_vals[q];
                LDKChannelDetails _res_conv_16_conv;
@@ -11326,7 +11339,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_ok"))) TS_
        o_conv = Route_clone(&o_conv);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_err"))) TS_CResult_RouteLightningErrorZ_err(uint32_t e) {
@@ -11337,7 +11350,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_err"))) TS
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_is_ok"))) TS_CResult_RouteLightningErrorZ_is_ok(uint32_t o) {
@@ -11348,7 +11361,7 @@ jboolean  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_free"))) TS_CResult_RouteLightningErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteLightningErrorZ _res_conv = *(LDKCResult_RouteLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11358,11 +11371,11 @@ void  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_RouteLightningErrorZ_clone_ptr(LDKCResult_RouteLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_clone_ptr"))) TS_CResult_RouteLightningErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_clone_ptr"))) TS_CResult_RouteLightningErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RouteLightningErrorZ* arg_conv = (LDKCResult_RouteLightningErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RouteLightningErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RouteLightningErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11370,13 +11383,13 @@ uint32_t  __attribute__((export_name("TS_CResult_RouteLightningErrorZ_clone")))
        LDKCResult_RouteLightningErrorZ* orig_conv = (LDKCResult_RouteLightningErrorZ*)(orig & ~1);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_ok"))) TS_CResult_NoneLightningErrorZ_ok() {
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_err"))) TS_CResult_NoneLightningErrorZ_err(uint32_t e) {
@@ -11387,7 +11400,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_err"))) TS_
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_is_ok"))) TS_CResult_NoneLightningErrorZ_is_ok(uint32_t o) {
@@ -11398,7 +11411,7 @@ jboolean  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_is_ok"))) T
 
 void  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_free"))) TS_CResult_NoneLightningErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneLightningErrorZ _res_conv = *(LDKCResult_NoneLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11408,11 +11421,11 @@ void  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_free"))) TS_CRe
 static inline uintptr_t CResult_NoneLightningErrorZ_clone_ptr(LDKCResult_NoneLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_clone_ptr"))) TS_CResult_NoneLightningErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_clone_ptr"))) TS_CResult_NoneLightningErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NoneLightningErrorZ* arg_conv = (LDKCResult_NoneLightningErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NoneLightningErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NoneLightningErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11420,17 +11433,17 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneLightningErrorZ_clone"))) T
        LDKCResult_NoneLightningErrorZ* orig_conv = (LDKCResult_NoneLightningErrorZ*)(orig & ~1);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 static inline uintptr_t C2Tuple_PublicKeyTypeZ_clone_ptr(LDKC2Tuple_PublicKeyTypeZ *NONNULL_PTR arg) {
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_clone_ptr"))) TS_C2Tuple_PublicKeyTypeZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_clone_ptr"))) TS_C2Tuple_PublicKeyTypeZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_PublicKeyTypeZ* arg_conv = (LDKC2Tuple_PublicKeyTypeZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_PublicKeyTypeZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_PublicKeyTypeZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11438,24 +11451,24 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_clone"))) TS_C2T
        LDKC2Tuple_PublicKeyTypeZ* orig_conv = (LDKC2Tuple_PublicKeyTypeZ*)(orig & ~1);
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_new"))) TS_C2Tuple_PublicKeyTypeZ_new(int8_tArray a, uint32_t b) {
        LDKPublicKey a_ref;
        CHECK(a->arr_len == 33);
-       memcpy(a_ref.compressed_form, a->elems, 33);
-       void* b_ptr = (void*)(((uint64_t)b) & ~1);
+       memcpy(a_ref.compressed_form, a->elems, 33); FREE(a);
+       void* b_ptr = (void*)(((uintptr_t)b) & ~1);
        CHECK_ACCESS(b_ptr);
        LDKType b_conv = *(LDKType*)(b_ptr);
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_new(a_ref, b_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_PublicKeyTypeZ_free"))) TS_C2Tuple_PublicKeyTypeZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PublicKeyTypeZ _res_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11469,10 +11482,10 @@ void  __attribute__((export_name("TS_CVec_C2Tuple_PublicKeyTypeZZ_free"))) TS_CV
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKCVec_C2Tuple_PublicKeyTypeZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t z = 0; z < _res_constr.datalen; z++) {
                uint32_t _res_conv_25 = _res_vals[z];
-               void* _res_conv_25_ptr = (void*)(((uint64_t)_res_conv_25) & ~1);
+               void* _res_conv_25_ptr = (void*)(((uintptr_t)_res_conv_25) & ~1);
                CHECK_ACCESS(_res_conv_25_ptr);
                LDKC2Tuple_PublicKeyTypeZ _res_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_conv_25_ptr);
                FREE((void*)_res_conv_25);
@@ -11488,10 +11501,10 @@ void  __attribute__((export_name("TS_CVec_MessageSendEventZ_free"))) TS_CVec_Mes
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKMessageSendEvent), "LDKCVec_MessageSendEventZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t s = 0; s < _res_constr.datalen; s++) {
                uint32_t _res_conv_18 = _res_vals[s];
-               void* _res_conv_18_ptr = (void*)(((uint64_t)_res_conv_18) & ~1);
+               void* _res_conv_18_ptr = (void*)(((uintptr_t)_res_conv_18) & ~1);
                CHECK_ACCESS(_res_conv_18_ptr);
                LDKMessageSendEvent _res_conv_18_conv = *(LDKMessageSendEvent*)(_res_conv_18_ptr);
                FREE((void*)_res_conv_18);
@@ -11503,7 +11516,7 @@ void  __attribute__((export_name("TS_CVec_MessageSendEventZ_free"))) TS_CVec_Mes
 uint32_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_ok"))) TS_CResult_boolLightningErrorZ_ok(jboolean o) {
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_ok(o);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_err"))) TS_CResult_boolLightningErrorZ_err(uint32_t e) {
@@ -11514,7 +11527,7 @@ uint32_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_err"))) TS_
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_boolLightningErrorZ_is_ok"))) TS_CResult_boolLightningErrorZ_is_ok(uint32_t o) {
@@ -11525,7 +11538,7 @@ jboolean  __attribute__((export_name("TS_CResult_boolLightningErrorZ_is_ok"))) T
 
 void  __attribute__((export_name("TS_CResult_boolLightningErrorZ_free"))) TS_CResult_boolLightningErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_boolLightningErrorZ _res_conv = *(LDKCResult_boolLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11535,11 +11548,11 @@ void  __attribute__((export_name("TS_CResult_boolLightningErrorZ_free"))) TS_CRe
 static inline uintptr_t CResult_boolLightningErrorZ_clone_ptr(LDKCResult_boolLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_clone_ptr"))) TS_CResult_boolLightningErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_clone_ptr"))) TS_CResult_boolLightningErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_boolLightningErrorZ* arg_conv = (LDKCResult_boolLightningErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_boolLightningErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_boolLightningErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11547,17 +11560,17 @@ uint32_t  __attribute__((export_name("TS_CResult_boolLightningErrorZ_clone"))) T
        LDKCResult_boolLightningErrorZ* orig_conv = (LDKCResult_boolLightningErrorZ*)(orig & ~1);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 static inline uintptr_t C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ *NONNULL_PTR arg) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(uint32_t arg) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* arg_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(arg & ~1);
-       int64_t ret_val = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11565,7 +11578,7 @@ uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdat
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* orig_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(orig & ~1);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_new"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_new(uint32_t a, uint32_t b, uint32_t c) {
@@ -11586,12 +11599,12 @@ uint32_t  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdat
        c_conv = ChannelUpdate_clone(&c_conv);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_new(a_conv, b_conv, c_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_free"))) TS_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11605,10 +11618,10 @@ void  __attribute__((export_name("TS_CVec_C3Tuple_ChannelAnnouncementChannelUpda
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                uint32_t _res_conv_59 = _res_vals[h];
-               void* _res_conv_59_ptr = (void*)(((uint64_t)_res_conv_59) & ~1);
+               void* _res_conv_59_ptr = (void*)(((uintptr_t)_res_conv_59) & ~1);
                CHECK_ACCESS(_res_conv_59_ptr);
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_conv_59_ptr);
                FREE((void*)_res_conv_59);
@@ -11624,7 +11637,7 @@ void  __attribute__((export_name("TS_CVec_NodeAnnouncementZ_free"))) TS_CVec_Nod
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKNodeAnnouncement), "LDKCVec_NodeAnnouncementZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t s = 0; s < _res_constr.datalen; s++) {
                uint32_t _res_conv_18 = _res_vals[s];
                LDKNodeAnnouncement _res_conv_18_conv;
@@ -11643,12 +11656,12 @@ void  __attribute__((export_name("TS_CVec_PublicKeyZ_free"))) TS_CVec_PublicKeyZ
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKPublicKey), "LDKCVec_PublicKeyZ Elements");
        else
                _res_constr.data = NULL;
-       int8_tArray* _res_vals = (void*) _res->elems;
+       int8_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int8_tArray _res_conv_12 = _res_vals[m];
                LDKPublicKey _res_conv_12_ref;
                CHECK(_res_conv_12->arr_len == 33);
-               memcpy(_res_conv_12_ref.compressed_form, _res_conv_12->elems, 33);
+               memcpy(_res_conv_12_ref.compressed_form, _res_conv_12->elems, 33); FREE(_res_conv_12);
                _res_constr.data[m] = _res_conv_12_ref;
        }
        CVec_PublicKeyZ_free(_res_constr);
@@ -11658,7 +11671,7 @@ void  __attribute__((export_name("TS_CVec_u8Z_free"))) TS_CVec_u8Z_free(int8_tAr
        LDKCVec_u8Z _res_ref;
        _res_ref.datalen = _res->arr_len;
        _res_ref.data = MALLOC(_res_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(_res_ref.data, _res->elems, _res_ref.datalen);
+       memcpy(_res_ref.data, _res->elems, _res_ref.datalen); FREE(_res);
        CVec_u8Z_free(_res_ref);
 }
 
@@ -11666,10 +11679,10 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_ok")))
        LDKCVec_u8Z o_ref;
        o_ref.datalen = o->arr_len;
        o_ref.data = MALLOC(o_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(o_ref.data, o->elems, o_ref.datalen);
+       memcpy(o_ref.data, o->elems, o_ref.datalen); FREE(o);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_err"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_err(uint32_t e) {
@@ -11680,7 +11693,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_err"))
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_is_ok"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_is_ok(uint32_t o) {
@@ -11691,7 +11704,7 @@ jboolean  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_free"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_u8ZPeerHandleErrorZ _res_conv = *(LDKCResult_CVec_u8ZPeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11701,11 +11714,11 @@ void  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_free"))) T
 static inline uintptr_t CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(LDKCResult_CVec_u8ZPeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr"))) TS_CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_CVec_u8ZPeerHandleErrorZ* arg_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11713,13 +11726,13 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_u8ZPeerHandleErrorZ_clone"
        LDKCResult_CVec_u8ZPeerHandleErrorZ* orig_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(orig & ~1);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_ok"))) TS_CResult_NonePeerHandleErrorZ_ok() {
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_err"))) TS_CResult_NonePeerHandleErrorZ_err(uint32_t e) {
@@ -11730,7 +11743,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_err"))) TS
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_is_ok"))) TS_CResult_NonePeerHandleErrorZ_is_ok(uint32_t o) {
@@ -11741,7 +11754,7 @@ jboolean  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_free"))) TS_CResult_NonePeerHandleErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NonePeerHandleErrorZ _res_conv = *(LDKCResult_NonePeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11751,11 +11764,11 @@ void  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_NonePeerHandleErrorZ_clone_ptr(LDKCResult_NonePeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_clone_ptr"))) TS_CResult_NonePeerHandleErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_clone_ptr"))) TS_CResult_NonePeerHandleErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NonePeerHandleErrorZ* arg_conv = (LDKCResult_NonePeerHandleErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NonePeerHandleErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NonePeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11763,13 +11776,13 @@ uint32_t  __attribute__((export_name("TS_CResult_NonePeerHandleErrorZ_clone")))
        LDKCResult_NonePeerHandleErrorZ* orig_conv = (LDKCResult_NonePeerHandleErrorZ*)(orig & ~1);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_ok"))) TS_CResult_boolPeerHandleErrorZ_ok(jboolean o) {
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_ok(o);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_err"))) TS_CResult_boolPeerHandleErrorZ_err(uint32_t e) {
@@ -11780,7 +11793,7 @@ uint32_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_err"))) TS
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_is_ok"))) TS_CResult_boolPeerHandleErrorZ_is_ok(uint32_t o) {
@@ -11791,7 +11804,7 @@ jboolean  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_free"))) TS_CResult_boolPeerHandleErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_boolPeerHandleErrorZ _res_conv = *(LDKCResult_boolPeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11801,11 +11814,11 @@ void  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_boolPeerHandleErrorZ_clone_ptr(LDKCResult_boolPeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_clone_ptr"))) TS_CResult_boolPeerHandleErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_clone_ptr"))) TS_CResult_boolPeerHandleErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_boolPeerHandleErrorZ* arg_conv = (LDKCResult_boolPeerHandleErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_boolPeerHandleErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_boolPeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11813,24 +11826,24 @@ uint32_t  __attribute__((export_name("TS_CResult_boolPeerHandleErrorZ_clone")))
        LDKCResult_boolPeerHandleErrorZ* orig_conv = (LDKCResult_boolPeerHandleErrorZ*)(orig & ~1);
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_ok"))) TS_CResult_TxOutAccessErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKTxOut o_conv = *(LDKTxOut*)(o_ptr);
-       o_conv = TxOut_clone((LDKTxOut*)(((uint64_t)o) & ~1));
+       o_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)o) & ~1));
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_err"))) TS_CResult_TxOutAccessErrorZ_err(uint32_t e) {
        LDKAccessError e_conv = LDKAccessError_from_js(e);
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_is_ok"))) TS_CResult_TxOutAccessErrorZ_is_ok(uint32_t o) {
@@ -11841,7 +11854,7 @@ jboolean  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_is_ok"))) TS_
 
 void  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_free"))) TS_CResult_TxOutAccessErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxOutAccessErrorZ _res_conv = *(LDKCResult_TxOutAccessErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11851,11 +11864,11 @@ void  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_free"))) TS_CResu
 static inline uintptr_t CResult_TxOutAccessErrorZ_clone_ptr(LDKCResult_TxOutAccessErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_clone_ptr"))) TS_CResult_TxOutAccessErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_clone_ptr"))) TS_CResult_TxOutAccessErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_TxOutAccessErrorZ* arg_conv = (LDKCResult_TxOutAccessErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_TxOutAccessErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_TxOutAccessErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11863,20 +11876,20 @@ uint32_t  __attribute__((export_name("TS_CResult_TxOutAccessErrorZ_clone"))) TS_
        LDKCResult_TxOutAccessErrorZ* orig_conv = (LDKCResult_TxOutAccessErrorZ*)(orig & ~1);
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_ok"))) TS_CResult_NoneChannelMonitorUpdateErrZ_ok() {
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_err"))) TS_CResult_NoneChannelMonitorUpdateErrZ_err(uint32_t e) {
        LDKChannelMonitorUpdateErr e_conv = LDKChannelMonitorUpdateErr_from_js(e);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_is_ok"))) TS_CResult_NoneChannelMonitorUpdateErrZ_is_ok(uint32_t o) {
@@ -11887,7 +11900,7 @@ jboolean  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_is
 
 void  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_free"))) TS_CResult_NoneChannelMonitorUpdateErrZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ _res_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11897,11 +11910,11 @@ void  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_free")
 static inline uintptr_t CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(LDKCResult_NoneChannelMonitorUpdateErrZ *NONNULL_PTR arg) {
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_clone_ptr"))) TS_CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_clone_ptr"))) TS_CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(uint32_t arg) {
        LDKCResult_NoneChannelMonitorUpdateErrZ* arg_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(arg & ~1);
-       int64_t ret_val = CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11909,30 +11922,30 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneChannelMonitorUpdateErrZ_cl
        LDKCResult_NoneChannelMonitorUpdateErrZ* orig_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(orig & ~1);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_some"))) TS_COption_C2Tuple_usizeTransactionZZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_usizeTransactionZ o_conv = *(LDKC2Tuple_usizeTransactionZ*)(o_ptr);
-       o_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)o) & ~1));
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_none"))) TS_COption_C2Tuple_usizeTransactionZZ_none() {
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_free"))) TS_COption_C2Tuple_usizeTransactionZZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_C2Tuple_usizeTransactionZZ _res_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11942,12 +11955,12 @@ void  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_free")))
 static inline uintptr_t COption_C2Tuple_usizeTransactionZZ_clone_ptr(LDKCOption_C2Tuple_usizeTransactionZZ *NONNULL_PTR arg) {
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_clone_ptr"))) TS_COption_C2Tuple_usizeTransactionZZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_clone_ptr"))) TS_COption_C2Tuple_usizeTransactionZZ_clone_ptr(uint32_t arg) {
        LDKCOption_C2Tuple_usizeTransactionZZ* arg_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)arg;
-       int64_t ret_val = COption_C2Tuple_usizeTransactionZZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_C2Tuple_usizeTransactionZZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -11955,31 +11968,31 @@ uint32_t  __attribute__((export_name("TS_COption_C2Tuple_usizeTransactionZZ_clon
        LDKCOption_C2Tuple_usizeTransactionZZ* orig_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)orig;
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_ClosureReasonZ_some"))) TS_COption_ClosureReasonZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKClosureReason o_conv = *(LDKClosureReason*)(o_ptr);
-       o_conv = ClosureReason_clone((LDKClosureReason*)(((uint64_t)o) & ~1));
+       o_conv = ClosureReason_clone((LDKClosureReason*)(((uintptr_t)o) & ~1));
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_ClosureReasonZ_none"))) TS_COption_ClosureReasonZ_none() {
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_ClosureReasonZ_free"))) TS_COption_ClosureReasonZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_ClosureReasonZ _res_conv = *(LDKCOption_ClosureReasonZ*)(_res_ptr);
        FREE((void*)_res);
@@ -11989,12 +12002,12 @@ void  __attribute__((export_name("TS_COption_ClosureReasonZ_free"))) TS_COption_
 static inline uintptr_t COption_ClosureReasonZ_clone_ptr(LDKCOption_ClosureReasonZ *NONNULL_PTR arg) {
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_ClosureReasonZ_clone_ptr"))) TS_COption_ClosureReasonZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_ClosureReasonZ_clone_ptr"))) TS_COption_ClosureReasonZ_clone_ptr(uint32_t arg) {
        LDKCOption_ClosureReasonZ* arg_conv = (LDKCOption_ClosureReasonZ*)arg;
-       int64_t ret_val = COption_ClosureReasonZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_ClosureReasonZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12002,18 +12015,18 @@ uint32_t  __attribute__((export_name("TS_COption_ClosureReasonZ_clone"))) TS_COp
        LDKCOption_ClosureReasonZ* orig_conv = (LDKCOption_ClosureReasonZ*)orig;
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_ok"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKCOption_ClosureReasonZ o_conv = *(LDKCOption_ClosureReasonZ*)(o_ptr);
-       o_conv = COption_ClosureReasonZ_clone((LDKCOption_ClosureReasonZ*)(((uint64_t)o) & ~1));
+       o_conv = COption_ClosureReasonZ_clone((LDKCOption_ClosureReasonZ*)(((uintptr_t)o) & ~1));
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_err"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_err(uint32_t e) {
@@ -12024,7 +12037,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_is_ok"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_is_ok(uint32_t o) {
@@ -12035,7 +12048,7 @@ jboolean  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErr
 
 void  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_free"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ _res_conv = *(LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12045,11 +12058,11 @@ void  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_
 static inline uintptr_t CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* arg_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12057,30 +12070,30 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_ClosureReasonZDecodeErr
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* orig_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(orig & ~1);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_NetworkUpdateZ_some"))) TS_COption_NetworkUpdateZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKNetworkUpdate o_conv = *(LDKNetworkUpdate*)(o_ptr);
-       o_conv = NetworkUpdate_clone((LDKNetworkUpdate*)(((uint64_t)o) & ~1));
+       o_conv = NetworkUpdate_clone((LDKNetworkUpdate*)(((uintptr_t)o) & ~1));
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_NetworkUpdateZ_none"))) TS_COption_NetworkUpdateZ_none() {
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_NetworkUpdateZ_free"))) TS_COption_NetworkUpdateZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_NetworkUpdateZ _res_conv = *(LDKCOption_NetworkUpdateZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12090,12 +12103,12 @@ void  __attribute__((export_name("TS_COption_NetworkUpdateZ_free"))) TS_COption_
 static inline uintptr_t COption_NetworkUpdateZ_clone_ptr(LDKCOption_NetworkUpdateZ *NONNULL_PTR arg) {
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_NetworkUpdateZ_clone_ptr"))) TS_COption_NetworkUpdateZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_NetworkUpdateZ_clone_ptr"))) TS_COption_NetworkUpdateZ_clone_ptr(uint32_t arg) {
        LDKCOption_NetworkUpdateZ* arg_conv = (LDKCOption_NetworkUpdateZ*)arg;
-       int64_t ret_val = COption_NetworkUpdateZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_NetworkUpdateZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12103,7 +12116,7 @@ uint32_t  __attribute__((export_name("TS_COption_NetworkUpdateZ_clone"))) TS_COp
        LDKCOption_NetworkUpdateZ* orig_conv = (LDKCOption_NetworkUpdateZ*)orig;
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -12114,10 +12127,10 @@ void  __attribute__((export_name("TS_CVec_SpendableOutputDescriptorZ_free"))) TS
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKSpendableOutputDescriptor), "LDKCVec_SpendableOutputDescriptorZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t b = 0; b < _res_constr.datalen; b++) {
                uint32_t _res_conv_27 = _res_vals[b];
-               void* _res_conv_27_ptr = (void*)(((uint64_t)_res_conv_27) & ~1);
+               void* _res_conv_27_ptr = (void*)(((uintptr_t)_res_conv_27) & ~1);
                CHECK_ACCESS(_res_conv_27_ptr);
                LDKSpendableOutputDescriptor _res_conv_27_conv = *(LDKSpendableOutputDescriptor*)(_res_conv_27_ptr);
                FREE((void*)_res_conv_27);
@@ -12127,26 +12140,26 @@ void  __attribute__((export_name("TS_CVec_SpendableOutputDescriptorZ_free"))) TS
 }
 
 uint32_t  __attribute__((export_name("TS_COption_EventZ_some"))) TS_COption_EventZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKEvent o_conv = *(LDKEvent*)(o_ptr);
-       o_conv = Event_clone((LDKEvent*)(((uint64_t)o) & ~1));
+       o_conv = Event_clone((LDKEvent*)(((uintptr_t)o) & ~1));
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_EventZ_none"))) TS_COption_EventZ_none() {
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_EventZ_free"))) TS_COption_EventZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_EventZ _res_conv = *(LDKCOption_EventZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12156,12 +12169,12 @@ void  __attribute__((export_name("TS_COption_EventZ_free"))) TS_COption_EventZ_f
 static inline uintptr_t COption_EventZ_clone_ptr(LDKCOption_EventZ *NONNULL_PTR arg) {
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_EventZ_clone_ptr"))) TS_COption_EventZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_EventZ_clone_ptr"))) TS_COption_EventZ_clone_ptr(uint32_t arg) {
        LDKCOption_EventZ* arg_conv = (LDKCOption_EventZ*)arg;
-       int64_t ret_val = COption_EventZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_EventZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12169,18 +12182,18 @@ uint32_t  __attribute__((export_name("TS_COption_EventZ_clone"))) TS_COption_Eve
        LDKCOption_EventZ* orig_conv = (LDKCOption_EventZ*)orig;
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_ok"))) TS_CResult_COption_EventZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKCOption_EventZ o_conv = *(LDKCOption_EventZ*)(o_ptr);
-       o_conv = COption_EventZ_clone((LDKCOption_EventZ*)(((uint64_t)o) & ~1));
+       o_conv = COption_EventZ_clone((LDKCOption_EventZ*)(((uintptr_t)o) & ~1));
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_err"))) TS_CResult_COption_EventZDecodeErrorZ_err(uint32_t e) {
@@ -12191,7 +12204,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_is_ok"))) TS_CResult_COption_EventZDecodeErrorZ_is_ok(uint32_t o) {
@@ -12202,7 +12215,7 @@ jboolean  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_free"))) TS_CResult_COption_EventZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_EventZDecodeErrorZ _res_conv = *(LDKCResult_COption_EventZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12212,11 +12225,11 @@ void  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_free")))
 static inline uintptr_t CResult_COption_EventZDecodeErrorZ_clone_ptr(LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_EventZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_EventZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_COption_EventZDecodeErrorZ* arg_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_COption_EventZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_COption_EventZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12224,7 +12237,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_EventZDecodeErrorZ_clon
        LDKCResult_COption_EventZDecodeErrorZ* orig_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(orig & ~1);
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_ok"))) TS_CResult_NodeIdDecodeErrorZ_ok(uint32_t o) {
@@ -12235,7 +12248,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_ok"))) TS_CR
        o_conv = NodeId_clone(&o_conv);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_err"))) TS_CResult_NodeIdDecodeErrorZ_err(uint32_t e) {
@@ -12246,7 +12259,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_err"))) TS_C
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_is_ok"))) TS_CResult_NodeIdDecodeErrorZ_is_ok(uint32_t o) {
@@ -12257,7 +12270,7 @@ jboolean  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_is_ok"))) TS
 
 void  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_free"))) TS_CResult_NodeIdDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeIdDecodeErrorZ _res_conv = *(LDKCResult_NodeIdDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12267,11 +12280,11 @@ void  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_free"))) TS_CRes
 static inline uintptr_t CResult_NodeIdDecodeErrorZ_clone_ptr(LDKCResult_NodeIdDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_clone_ptr"))) TS_CResult_NodeIdDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_clone_ptr"))) TS_CResult_NodeIdDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NodeIdDecodeErrorZ* arg_conv = (LDKCResult_NodeIdDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NodeIdDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NodeIdDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12279,17 +12292,17 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeIdDecodeErrorZ_clone"))) TS
        LDKCResult_NodeIdDecodeErrorZ* orig_conv = (LDKCResult_NodeIdDecodeErrorZ*)(orig & ~1);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_ok"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKCOption_NetworkUpdateZ o_conv = *(LDKCOption_NetworkUpdateZ*)(o_ptr);
-       o_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uint64_t)o) & ~1));
+       o_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uintptr_t)o) & ~1));
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_err"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_err(uint32_t e) {
@@ -12300,7 +12313,7 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_is_ok"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_is_ok(uint32_t o) {
@@ -12311,7 +12324,7 @@ jboolean  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErr
 
 void  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_free"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ _res_conv = *(LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12321,11 +12334,11 @@ void  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_
 static inline uintptr_t CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(LDKCResult_COption_NetworkUpdateZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr"))) TS_CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* arg_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12333,29 +12346,29 @@ uint32_t  __attribute__((export_name("TS_CResult_COption_NetworkUpdateZDecodeErr
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* orig_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(orig & ~1);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_AccessZ_some"))) TS_COption_AccessZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKAccess o_conv = *(LDKAccess*)(o_ptr);
        LDKCOption_AccessZ *ret_copy = MALLOC(sizeof(LDKCOption_AccessZ), "LDKCOption_AccessZ");
        *ret_copy = COption_AccessZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_AccessZ_none"))) TS_COption_AccessZ_none() {
        LDKCOption_AccessZ *ret_copy = MALLOC(sizeof(LDKCOption_AccessZ), "LDKCOption_AccessZ");
        *ret_copy = COption_AccessZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_AccessZ_free"))) TS_COption_AccessZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_AccessZ _res_conv = *(LDKCOption_AccessZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12370,7 +12383,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErr
        o_conv = DirectionalChannelInfo_clone(&o_conv);
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DirectionalChannelInfoDecodeErrorZ), "LDKCResult_DirectionalChannelInfoDecodeErrorZ");
        *ret_conv = CResult_DirectionalChannelInfoDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_err"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_err(uint32_t e) {
@@ -12381,7 +12394,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DirectionalChannelInfoDecodeErrorZ), "LDKCResult_DirectionalChannelInfoDecodeErrorZ");
        *ret_conv = CResult_DirectionalChannelInfoDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_is_ok"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_is_ok(uint32_t o) {
@@ -12392,7 +12405,7 @@ jboolean  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErr
 
 void  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_free"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_DirectionalChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12402,11 +12415,11 @@ void  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_
 static inline uintptr_t CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr(LDKCResult_DirectionalChannelInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DirectionalChannelInfoDecodeErrorZ), "LDKCResult_DirectionalChannelInfoDecodeErrorZ");
        *ret_conv = CResult_DirectionalChannelInfoDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr"))) TS_CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* arg_conv = (LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_DirectionalChannelInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12414,7 +12427,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DirectionalChannelInfoDecodeErr
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* orig_conv = (LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(orig & ~1);
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DirectionalChannelInfoDecodeErrorZ), "LDKCResult_DirectionalChannelInfoDecodeErrorZ");
        *ret_conv = CResult_DirectionalChannelInfoDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_ok"))) TS_CResult_ChannelInfoDecodeErrorZ_ok(uint32_t o) {
@@ -12425,7 +12438,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_ok")))
        o_conv = ChannelInfo_clone(&o_conv);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_err"))) TS_CResult_ChannelInfoDecodeErrorZ_err(uint32_t e) {
@@ -12436,7 +12449,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_err")))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_is_ok"))) TS_CResult_ChannelInfoDecodeErrorZ_is_ok(uint32_t o) {
@@ -12447,7 +12460,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_is_ok")
 
 void  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_free"))) TS_CResult_ChannelInfoDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_ChannelInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12457,11 +12470,11 @@ void  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_free"))) TS
 static inline uintptr_t CResult_ChannelInfoDecodeErrorZ_clone_ptr(LDKCResult_ChannelInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelInfoDecodeErrorZ* arg_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelInfoDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12469,7 +12482,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelInfoDecodeErrorZ_clone")
        LDKCResult_ChannelInfoDecodeErrorZ* orig_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_ok"))) TS_CResult_RoutingFeesDecodeErrorZ_ok(uint32_t o) {
@@ -12480,7 +12493,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_ok")))
        o_conv = RoutingFees_clone(&o_conv);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_err"))) TS_CResult_RoutingFeesDecodeErrorZ_err(uint32_t e) {
@@ -12491,7 +12504,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_err")))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_is_ok"))) TS_CResult_RoutingFeesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12502,7 +12515,7 @@ jboolean  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_is_ok")
 
 void  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_free"))) TS_CResult_RoutingFeesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RoutingFeesDecodeErrorZ _res_conv = *(LDKCResult_RoutingFeesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12512,11 +12525,11 @@ void  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_free"))) TS
 static inline uintptr_t CResult_RoutingFeesDecodeErrorZ_clone_ptr(LDKCResult_RoutingFeesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_clone_ptr"))) TS_CResult_RoutingFeesDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_clone_ptr"))) TS_CResult_RoutingFeesDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RoutingFeesDecodeErrorZ* arg_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RoutingFeesDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RoutingFeesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12524,7 +12537,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RoutingFeesDecodeErrorZ_clone")
        LDKCResult_RoutingFeesDecodeErrorZ* orig_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(orig & ~1);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_NetAddressZ_free"))) TS_CVec_NetAddressZ_free(uint32_tArray _res) {
@@ -12534,10 +12547,10 @@ void  __attribute__((export_name("TS_CVec_NetAddressZ_free"))) TS_CVec_NetAddres
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                uint32_t _res_conv_12 = _res_vals[m];
-               void* _res_conv_12_ptr = (void*)(((uint64_t)_res_conv_12) & ~1);
+               void* _res_conv_12_ptr = (void*)(((uintptr_t)_res_conv_12) & ~1);
                CHECK_ACCESS(_res_conv_12_ptr);
                LDKNetAddress _res_conv_12_conv = *(LDKNetAddress*)(_res_conv_12_ptr);
                FREE((void*)_res_conv_12);
@@ -12554,7 +12567,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeError
        o_conv = NodeAnnouncementInfo_clone(&o_conv);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_err"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_err(uint32_t e) {
@@ -12565,7 +12578,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeError
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_is_ok"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_is_ok(uint32_t o) {
@@ -12576,7 +12589,7 @@ jboolean  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeError
 
 void  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_free"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12586,11 +12599,11 @@ void  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_fr
 static inline uintptr_t CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr"))) TS_CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12598,7 +12611,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementInfoDecodeError
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(orig & ~1);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_u64Z_free"))) TS_CVec_u64Z_free(int64_tArray _res) {
@@ -12608,7 +12621,7 @@ void  __attribute__((export_name("TS_CVec_u64Z_free"))) TS_CVec_u64Z_free(int64_
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                _res_constr.data = NULL;
-       int64_t* _res_vals = _res->elems;
+       int64_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t i = 0; i < _res_constr.datalen; i++) {
                int64_t _res_conv_8 = _res_vals[i];
                _res_constr.data[i] = _res_conv_8;
@@ -12624,7 +12637,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_ok"))) TS_
        o_conv = NodeInfo_clone(&o_conv);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_err"))) TS_CResult_NodeInfoDecodeErrorZ_err(uint32_t e) {
@@ -12635,7 +12648,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_err"))) TS
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_is_ok"))) TS_CResult_NodeInfoDecodeErrorZ_is_ok(uint32_t o) {
@@ -12646,7 +12659,7 @@ jboolean  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_free"))) TS_CResult_NodeInfoDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12656,11 +12669,11 @@ void  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_NodeInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_clone_ptr"))) TS_CResult_NodeInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_clone_ptr"))) TS_CResult_NodeInfoDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NodeInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NodeInfoDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NodeInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12668,7 +12681,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeInfoDecodeErrorZ_clone")))
        LDKCResult_NodeInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(orig & ~1);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_ok"))) TS_CResult_NetworkGraphDecodeErrorZ_ok(uint32_t o) {
@@ -12679,7 +12692,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_ok")))
        o_conv = NetworkGraph_clone(&o_conv);
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_err"))) TS_CResult_NetworkGraphDecodeErrorZ_err(uint32_t e) {
@@ -12690,7 +12703,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_is_ok"))) TS_CResult_NetworkGraphDecodeErrorZ_is_ok(uint32_t o) {
@@ -12701,7 +12714,7 @@ jboolean  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_free"))) TS_CResult_NetworkGraphDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NetworkGraphDecodeErrorZ _res_conv = *(LDKCResult_NetworkGraphDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12711,11 +12724,11 @@ void  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_free"))) T
 static inline uintptr_t CResult_NetworkGraphDecodeErrorZ_clone_ptr(LDKCResult_NetworkGraphDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_clone_ptr"))) TS_CResult_NetworkGraphDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_clone_ptr"))) TS_CResult_NetworkGraphDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NetworkGraphDecodeErrorZ* arg_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NetworkGraphDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NetworkGraphDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12723,7 +12736,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetworkGraphDecodeErrorZ_clone"
        LDKCResult_NetworkGraphDecodeErrorZ* orig_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(orig & ~1);
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_some"))) TS_COption_CVec_NetAddressZZ_some(uint32_tArray o) {
@@ -12733,31 +12746,31 @@ uint32_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_some"))) TS_C
                o_constr.data = MALLOC(o_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                o_constr.data = NULL;
-       uint32_t* o_vals = o->elems;
+       uint32_t* o_vals = o->elems /* XXX o leaks */;
        for (size_t m = 0; m < o_constr.datalen; m++) {
                uint32_t o_conv_12 = o_vals[m];
-               void* o_conv_12_ptr = (void*)(((uint64_t)o_conv_12) & ~1);
+               void* o_conv_12_ptr = (void*)(((uintptr_t)o_conv_12) & ~1);
                CHECK_ACCESS(o_conv_12_ptr);
                LDKNetAddress o_conv_12_conv = *(LDKNetAddress*)(o_conv_12_ptr);
-               o_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)o_conv_12) & ~1));
+               o_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)o_conv_12) & ~1));
                o_constr.data[m] = o_conv_12_conv;
        }
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_some(o_constr);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_none"))) TS_COption_CVec_NetAddressZZ_none() {
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_free"))) TS_COption_CVec_NetAddressZZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_CVec_NetAddressZZ _res_conv = *(LDKCOption_CVec_NetAddressZZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12767,12 +12780,12 @@ void  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_free"))) TS_COpti
 static inline uintptr_t COption_CVec_NetAddressZZ_clone_ptr(LDKCOption_CVec_NetAddressZZ *NONNULL_PTR arg) {
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_clone_ptr"))) TS_COption_CVec_NetAddressZZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_clone_ptr"))) TS_COption_CVec_NetAddressZZ_clone_ptr(uint32_t arg) {
        LDKCOption_CVec_NetAddressZZ* arg_conv = (LDKCOption_CVec_NetAddressZZ*)arg;
-       int64_t ret_val = COption_CVec_NetAddressZZ_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_CVec_NetAddressZZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -12780,7 +12793,7 @@ uint32_t  __attribute__((export_name("TS_COption_CVec_NetAddressZZ_clone"))) TS_
        LDKCOption_CVec_NetAddressZZ* orig_conv = (LDKCOption_CVec_NetAddressZZ*)orig;
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -12792,7 +12805,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_o
        // Warning: we need a move here but no clone is available for LDKScoringParameters
        LDKCResult_ScoringParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ScoringParametersDecodeErrorZ), "LDKCResult_ScoringParametersDecodeErrorZ");
        *ret_conv = CResult_ScoringParametersDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_err"))) TS_CResult_ScoringParametersDecodeErrorZ_err(uint32_t e) {
@@ -12803,7 +12816,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_e
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ScoringParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ScoringParametersDecodeErrorZ), "LDKCResult_ScoringParametersDecodeErrorZ");
        *ret_conv = CResult_ScoringParametersDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_is_ok"))) TS_CResult_ScoringParametersDecodeErrorZ_is_ok(uint32_t o) {
@@ -12814,7 +12827,7 @@ jboolean  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_i
 
 void  __attribute__((export_name("TS_CResult_ScoringParametersDecodeErrorZ_free"))) TS_CResult_ScoringParametersDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ScoringParametersDecodeErrorZ _res_conv = *(LDKCResult_ScoringParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12829,7 +12842,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_ok")))
        o_conv = InitFeatures_clone(&o_conv);
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_err"))) TS_CResult_InitFeaturesDecodeErrorZ_err(uint32_t e) {
@@ -12840,7 +12853,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_is_ok"))) TS_CResult_InitFeaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12851,7 +12864,7 @@ jboolean  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_InitFeaturesDecodeErrorZ_free"))) TS_CResult_InitFeaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InitFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InitFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12866,7 +12879,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_ok"
        o_conv = ChannelFeatures_clone(&o_conv);
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_err"))) TS_CResult_ChannelFeaturesDecodeErrorZ_err(uint32_t e) {
@@ -12877,7 +12890,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_err
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_is_ok"))) TS_CResult_ChannelFeaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12888,7 +12901,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_is_
 
 void  __attribute__((export_name("TS_CResult_ChannelFeaturesDecodeErrorZ_free"))) TS_CResult_ChannelFeaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12903,7 +12916,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_ok")))
        o_conv = NodeFeatures_clone(&o_conv);
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_err"))) TS_CResult_NodeFeaturesDecodeErrorZ_err(uint32_t e) {
@@ -12914,7 +12927,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_is_ok"))) TS_CResult_NodeFeaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12925,7 +12938,7 @@ jboolean  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_NodeFeaturesDecodeErrorZ_free"))) TS_CResult_NodeFeaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_NodeFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12940,7 +12953,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_ok"
        o_conv = InvoiceFeatures_clone(&o_conv);
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_err"))) TS_CResult_InvoiceFeaturesDecodeErrorZ_err(uint32_t e) {
@@ -12951,7 +12964,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_err
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_is_ok"))) TS_CResult_InvoiceFeaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12962,7 +12975,7 @@ jboolean  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_is_
 
 void  __attribute__((export_name("TS_CResult_InvoiceFeaturesDecodeErrorZ_free"))) TS_CResult_InvoiceFeaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InvoiceFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InvoiceFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -12977,7 +12990,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ
        o_conv = ChannelTypeFeatures_clone(&o_conv);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_err"))) TS_CResult_ChannelTypeFeaturesDecodeErrorZ_err(uint32_t e) {
@@ -12988,7 +13001,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_is_ok"))) TS_CResult_ChannelTypeFeaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -12999,7 +13012,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ
 
 void  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_free"))) TS_CResult_ChannelTypeFeaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13007,13 +13020,13 @@ void  __attribute__((export_name("TS_CResult_ChannelTypeFeaturesDecodeErrorZ_fre
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_ok"))) TS_CResult_NetAddressDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKNetAddress o_conv = *(LDKNetAddress*)(o_ptr);
-       o_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)o) & ~1));
+       o_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)o) & ~1));
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_err"))) TS_CResult_NetAddressDecodeErrorZ_err(uint32_t e) {
@@ -13024,7 +13037,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_err")))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_is_ok"))) TS_CResult_NetAddressDecodeErrorZ_is_ok(uint32_t o) {
@@ -13035,7 +13048,7 @@ jboolean  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_is_ok"))
 
 void  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_free"))) TS_CResult_NetAddressDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NetAddressDecodeErrorZ _res_conv = *(LDKCResult_NetAddressDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13045,11 +13058,11 @@ void  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_free"))) TS_
 static inline uintptr_t CResult_NetAddressDecodeErrorZ_clone_ptr(LDKCResult_NetAddressDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_clone_ptr"))) TS_CResult_NetAddressDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_clone_ptr"))) TS_CResult_NetAddressDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NetAddressDecodeErrorZ* arg_conv = (LDKCResult_NetAddressDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NetAddressDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NetAddressDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13057,7 +13070,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NetAddressDecodeErrorZ_clone"))
        LDKCResult_NetAddressDecodeErrorZ* orig_conv = (LDKCResult_NetAddressDecodeErrorZ*)(orig & ~1);
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_UpdateAddHTLCZ_free"))) TS_CVec_UpdateAddHTLCZ_free(uint32_tArray _res) {
@@ -13067,7 +13080,7 @@ void  __attribute__((export_name("TS_CVec_UpdateAddHTLCZ_free"))) TS_CVec_Update
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKUpdateAddHTLC), "LDKCVec_UpdateAddHTLCZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t p = 0; p < _res_constr.datalen; p++) {
                uint32_t _res_conv_15 = _res_vals[p];
                LDKUpdateAddHTLC _res_conv_15_conv;
@@ -13086,7 +13099,7 @@ void  __attribute__((export_name("TS_CVec_UpdateFulfillHTLCZ_free"))) TS_CVec_Up
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKUpdateFulfillHTLC), "LDKCVec_UpdateFulfillHTLCZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t t = 0; t < _res_constr.datalen; t++) {
                uint32_t _res_conv_19 = _res_vals[t];
                LDKUpdateFulfillHTLC _res_conv_19_conv;
@@ -13105,7 +13118,7 @@ void  __attribute__((export_name("TS_CVec_UpdateFailHTLCZ_free"))) TS_CVec_Updat
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKUpdateFailHTLC), "LDKCVec_UpdateFailHTLCZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                uint32_t _res_conv_16 = _res_vals[q];
                LDKUpdateFailHTLC _res_conv_16_conv;
@@ -13124,7 +13137,7 @@ void  __attribute__((export_name("TS_CVec_UpdateFailMalformedHTLCZ_free"))) TS_C
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKUpdateFailMalformedHTLC), "LDKCVec_UpdateFailMalformedHTLCZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t z = 0; z < _res_constr.datalen; z++) {
                uint32_t _res_conv_25 = _res_vals[z];
                LDKUpdateFailMalformedHTLC _res_conv_25_conv;
@@ -13144,7 +13157,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_ok"))
        o_conv = AcceptChannel_clone(&o_conv);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_err"))) TS_CResult_AcceptChannelDecodeErrorZ_err(uint32_t e) {
@@ -13155,7 +13168,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_is_ok"))) TS_CResult_AcceptChannelDecodeErrorZ_is_ok(uint32_t o) {
@@ -13166,7 +13179,7 @@ jboolean  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_free"))) TS_CResult_AcceptChannelDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_AcceptChannelDecodeErrorZ _res_conv = *(LDKCResult_AcceptChannelDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13176,11 +13189,11 @@ void  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_free")))
 static inline uintptr_t CResult_AcceptChannelDecodeErrorZ_clone_ptr(LDKCResult_AcceptChannelDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_clone_ptr"))) TS_CResult_AcceptChannelDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_clone_ptr"))) TS_CResult_AcceptChannelDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_AcceptChannelDecodeErrorZ* arg_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_AcceptChannelDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_AcceptChannelDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13188,7 +13201,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AcceptChannelDecodeErrorZ_clone
        LDKCResult_AcceptChannelDecodeErrorZ* orig_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(orig & ~1);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_ok"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_ok(uint32_t o) {
@@ -13199,7 +13212,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErr
        o_conv = AnnouncementSignatures_clone(&o_conv);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_err"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_err(uint32_t e) {
@@ -13210,7 +13223,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_is_ok"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_is_ok(uint32_t o) {
@@ -13221,7 +13234,7 @@ jboolean  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErr
 
 void  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_free"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ _res_conv = *(LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13231,11 +13244,11 @@ void  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_
 static inline uintptr_t CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(LDKCResult_AnnouncementSignaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr"))) TS_CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* arg_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13243,7 +13256,7 @@ uint32_t  __attribute__((export_name("TS_CResult_AnnouncementSignaturesDecodeErr
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* orig_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(orig & ~1);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_ok"))) TS_CResult_ChannelReestablishDecodeErrorZ_ok(uint32_t o) {
@@ -13254,7 +13267,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_
        o_conv = ChannelReestablish_clone(&o_conv);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_err"))) TS_CResult_ChannelReestablishDecodeErrorZ_err(uint32_t e) {
@@ -13265,7 +13278,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_is_ok"))) TS_CResult_ChannelReestablishDecodeErrorZ_is_ok(uint32_t o) {
@@ -13276,7 +13289,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_
 
 void  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_free"))) TS_CResult_ChannelReestablishDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelReestablishDecodeErrorZ _res_conv = *(LDKCResult_ChannelReestablishDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13286,11 +13299,11 @@ void  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_free
 static inline uintptr_t CResult_ChannelReestablishDecodeErrorZ_clone_ptr(LDKCResult_ChannelReestablishDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelReestablishDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelReestablishDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelReestablishDecodeErrorZ* arg_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelReestablishDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelReestablishDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13298,7 +13311,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelReestablishDecodeErrorZ_
        LDKCResult_ChannelReestablishDecodeErrorZ* orig_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_ok"))) TS_CResult_ClosingSignedDecodeErrorZ_ok(uint32_t o) {
@@ -13309,7 +13322,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_ok"))
        o_conv = ClosingSigned_clone(&o_conv);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_err"))) TS_CResult_ClosingSignedDecodeErrorZ_err(uint32_t e) {
@@ -13320,7 +13333,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_is_ok"))) TS_CResult_ClosingSignedDecodeErrorZ_is_ok(uint32_t o) {
@@ -13331,7 +13344,7 @@ jboolean  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_free"))) TS_CResult_ClosingSignedDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ClosingSignedDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13341,11 +13354,11 @@ void  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_free")))
 static inline uintptr_t CResult_ClosingSignedDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_clone_ptr"))) TS_CResult_ClosingSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_clone_ptr"))) TS_CResult_ClosingSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ClosingSignedDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ClosingSignedDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ClosingSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13353,7 +13366,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedDecodeErrorZ_clone
        LDKCResult_ClosingSignedDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(orig & ~1);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_ok"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_ok(uint32_t o) {
@@ -13364,7 +13377,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErro
        o_conv = ClosingSignedFeeRange_clone(&o_conv);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_err"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_err(uint32_t e) {
@@ -13375,7 +13388,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErro
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_is_ok"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_is_ok(uint32_t o) {
@@ -13386,7 +13399,7 @@ jboolean  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErro
 
 void  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_free"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13396,11 +13409,11 @@ void  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_f
 static inline uintptr_t CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr"))) TS_CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13408,7 +13421,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ClosingSignedFeeRangeDecodeErro
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(orig & ~1);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_ok"))) TS_CResult_CommitmentSignedDecodeErrorZ_ok(uint32_t o) {
@@ -13419,7 +13432,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_ok
        o_conv = CommitmentSigned_clone(&o_conv);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_err"))) TS_CResult_CommitmentSignedDecodeErrorZ_err(uint32_t e) {
@@ -13430,7 +13443,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_er
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_is_ok"))) TS_CResult_CommitmentSignedDecodeErrorZ_is_ok(uint32_t o) {
@@ -13441,7 +13454,7 @@ jboolean  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_is
 
 void  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_free"))) TS_CResult_CommitmentSignedDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CommitmentSignedDecodeErrorZ _res_conv = *(LDKCResult_CommitmentSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13451,11 +13464,11 @@ void  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_free")
 static inline uintptr_t CResult_CommitmentSignedDecodeErrorZ_clone_ptr(LDKCResult_CommitmentSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_clone_ptr"))) TS_CResult_CommitmentSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_clone_ptr"))) TS_CResult_CommitmentSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_CommitmentSignedDecodeErrorZ* arg_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_CommitmentSignedDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CommitmentSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13463,7 +13476,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CommitmentSignedDecodeErrorZ_cl
        LDKCResult_CommitmentSignedDecodeErrorZ* orig_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(orig & ~1);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_ok"))) TS_CResult_FundingCreatedDecodeErrorZ_ok(uint32_t o) {
@@ -13474,7 +13487,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_ok")
        o_conv = FundingCreated_clone(&o_conv);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_err"))) TS_CResult_FundingCreatedDecodeErrorZ_err(uint32_t e) {
@@ -13485,7 +13498,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_is_ok"))) TS_CResult_FundingCreatedDecodeErrorZ_is_ok(uint32_t o) {
@@ -13496,7 +13509,7 @@ jboolean  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_free"))) TS_CResult_FundingCreatedDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FundingCreatedDecodeErrorZ _res_conv = *(LDKCResult_FundingCreatedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13506,11 +13519,11 @@ void  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_free")))
 static inline uintptr_t CResult_FundingCreatedDecodeErrorZ_clone_ptr(LDKCResult_FundingCreatedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingCreatedDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingCreatedDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_FundingCreatedDecodeErrorZ* arg_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_FundingCreatedDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_FundingCreatedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13518,7 +13531,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingCreatedDecodeErrorZ_clon
        LDKCResult_FundingCreatedDecodeErrorZ* orig_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(orig & ~1);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_ok"))) TS_CResult_FundingSignedDecodeErrorZ_ok(uint32_t o) {
@@ -13529,7 +13542,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_ok"))
        o_conv = FundingSigned_clone(&o_conv);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_err"))) TS_CResult_FundingSignedDecodeErrorZ_err(uint32_t e) {
@@ -13540,7 +13553,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_is_ok"))) TS_CResult_FundingSignedDecodeErrorZ_is_ok(uint32_t o) {
@@ -13551,7 +13564,7 @@ jboolean  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_free"))) TS_CResult_FundingSignedDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FundingSignedDecodeErrorZ _res_conv = *(LDKCResult_FundingSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13561,11 +13574,11 @@ void  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_free")))
 static inline uintptr_t CResult_FundingSignedDecodeErrorZ_clone_ptr(LDKCResult_FundingSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingSignedDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_FundingSignedDecodeErrorZ* arg_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_FundingSignedDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_FundingSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13573,7 +13586,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingSignedDecodeErrorZ_clone
        LDKCResult_FundingSignedDecodeErrorZ* orig_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(orig & ~1);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_ok"))) TS_CResult_FundingLockedDecodeErrorZ_ok(uint32_t o) {
@@ -13584,7 +13597,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_ok"))
        o_conv = FundingLocked_clone(&o_conv);
        LDKCResult_FundingLockedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingLockedDecodeErrorZ), "LDKCResult_FundingLockedDecodeErrorZ");
        *ret_conv = CResult_FundingLockedDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_err"))) TS_CResult_FundingLockedDecodeErrorZ_err(uint32_t e) {
@@ -13595,7 +13608,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FundingLockedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingLockedDecodeErrorZ), "LDKCResult_FundingLockedDecodeErrorZ");
        *ret_conv = CResult_FundingLockedDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_is_ok"))) TS_CResult_FundingLockedDecodeErrorZ_is_ok(uint32_t o) {
@@ -13606,7 +13619,7 @@ jboolean  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_free"))) TS_CResult_FundingLockedDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FundingLockedDecodeErrorZ _res_conv = *(LDKCResult_FundingLockedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13616,11 +13629,11 @@ void  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_free")))
 static inline uintptr_t CResult_FundingLockedDecodeErrorZ_clone_ptr(LDKCResult_FundingLockedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FundingLockedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingLockedDecodeErrorZ), "LDKCResult_FundingLockedDecodeErrorZ");
        *ret_conv = CResult_FundingLockedDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingLockedDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_clone_ptr"))) TS_CResult_FundingLockedDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_FundingLockedDecodeErrorZ* arg_conv = (LDKCResult_FundingLockedDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_FundingLockedDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_FundingLockedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13628,7 +13641,7 @@ uint32_t  __attribute__((export_name("TS_CResult_FundingLockedDecodeErrorZ_clone
        LDKCResult_FundingLockedDecodeErrorZ* orig_conv = (LDKCResult_FundingLockedDecodeErrorZ*)(orig & ~1);
        LDKCResult_FundingLockedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingLockedDecodeErrorZ), "LDKCResult_FundingLockedDecodeErrorZ");
        *ret_conv = CResult_FundingLockedDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_ok"))) TS_CResult_InitDecodeErrorZ_ok(uint32_t o) {
@@ -13639,7 +13652,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_ok"))) TS_CRes
        o_conv = Init_clone(&o_conv);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_err"))) TS_CResult_InitDecodeErrorZ_err(uint32_t e) {
@@ -13650,7 +13663,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_err"))) TS_CRe
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_is_ok"))) TS_CResult_InitDecodeErrorZ_is_ok(uint32_t o) {
@@ -13661,7 +13674,7 @@ jboolean  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_is_ok"))) TS_C
 
 void  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_free"))) TS_CResult_InitDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InitDecodeErrorZ _res_conv = *(LDKCResult_InitDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13671,11 +13684,11 @@ void  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_free"))) TS_CResul
 static inline uintptr_t CResult_InitDecodeErrorZ_clone_ptr(LDKCResult_InitDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_clone_ptr"))) TS_CResult_InitDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_clone_ptr"))) TS_CResult_InitDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_InitDecodeErrorZ* arg_conv = (LDKCResult_InitDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_InitDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_InitDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13683,7 +13696,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InitDecodeErrorZ_clone"))) TS_C
        LDKCResult_InitDecodeErrorZ* orig_conv = (LDKCResult_InitDecodeErrorZ*)(orig & ~1);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_ok"))) TS_CResult_OpenChannelDecodeErrorZ_ok(uint32_t o) {
@@ -13694,7 +13707,7 @@ uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_ok")))
        o_conv = OpenChannel_clone(&o_conv);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_err"))) TS_CResult_OpenChannelDecodeErrorZ_err(uint32_t e) {
@@ -13705,7 +13718,7 @@ uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_err")))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_is_ok"))) TS_CResult_OpenChannelDecodeErrorZ_is_ok(uint32_t o) {
@@ -13716,7 +13729,7 @@ jboolean  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_is_ok")
 
 void  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_free"))) TS_CResult_OpenChannelDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_OpenChannelDecodeErrorZ _res_conv = *(LDKCResult_OpenChannelDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13726,11 +13739,11 @@ void  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_free"))) TS
 static inline uintptr_t CResult_OpenChannelDecodeErrorZ_clone_ptr(LDKCResult_OpenChannelDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_clone_ptr"))) TS_CResult_OpenChannelDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_clone_ptr"))) TS_CResult_OpenChannelDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_OpenChannelDecodeErrorZ* arg_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_OpenChannelDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_OpenChannelDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13738,7 +13751,7 @@ uint32_t  __attribute__((export_name("TS_CResult_OpenChannelDecodeErrorZ_clone")
        LDKCResult_OpenChannelDecodeErrorZ* orig_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(orig & ~1);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_ok"))) TS_CResult_RevokeAndACKDecodeErrorZ_ok(uint32_t o) {
@@ -13749,7 +13762,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_ok")))
        o_conv = RevokeAndACK_clone(&o_conv);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_err"))) TS_CResult_RevokeAndACKDecodeErrorZ_err(uint32_t e) {
@@ -13760,7 +13773,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_is_ok"))) TS_CResult_RevokeAndACKDecodeErrorZ_is_ok(uint32_t o) {
@@ -13771,7 +13784,7 @@ jboolean  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_free"))) TS_CResult_RevokeAndACKDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RevokeAndACKDecodeErrorZ _res_conv = *(LDKCResult_RevokeAndACKDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13781,11 +13794,11 @@ void  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_free"))) T
 static inline uintptr_t CResult_RevokeAndACKDecodeErrorZ_clone_ptr(LDKCResult_RevokeAndACKDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_clone_ptr"))) TS_CResult_RevokeAndACKDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_clone_ptr"))) TS_CResult_RevokeAndACKDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_RevokeAndACKDecodeErrorZ* arg_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_RevokeAndACKDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RevokeAndACKDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13793,7 +13806,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RevokeAndACKDecodeErrorZ_clone"
        LDKCResult_RevokeAndACKDecodeErrorZ* orig_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(orig & ~1);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_ok"))) TS_CResult_ShutdownDecodeErrorZ_ok(uint32_t o) {
@@ -13804,7 +13817,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_ok"))) TS_
        o_conv = Shutdown_clone(&o_conv);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_err"))) TS_CResult_ShutdownDecodeErrorZ_err(uint32_t e) {
@@ -13815,7 +13828,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_err"))) TS
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_is_ok"))) TS_CResult_ShutdownDecodeErrorZ_is_ok(uint32_t o) {
@@ -13826,7 +13839,7 @@ jboolean  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_free"))) TS_CResult_ShutdownDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownDecodeErrorZ _res_conv = *(LDKCResult_ShutdownDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13836,11 +13849,11 @@ void  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_free"))) TS_CR
 static inline uintptr_t CResult_ShutdownDecodeErrorZ_clone_ptr(LDKCResult_ShutdownDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_clone_ptr"))) TS_CResult_ShutdownDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_clone_ptr"))) TS_CResult_ShutdownDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ShutdownDecodeErrorZ* arg_conv = (LDKCResult_ShutdownDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ShutdownDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ShutdownDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13848,7 +13861,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ShutdownDecodeErrorZ_clone")))
        LDKCResult_ShutdownDecodeErrorZ* orig_conv = (LDKCResult_ShutdownDecodeErrorZ*)(orig & ~1);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_ok"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_ok(uint32_t o) {
@@ -13859,7 +13872,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_ok")
        o_conv = UpdateFailHTLC_clone(&o_conv);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_err"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_err(uint32_t e) {
@@ -13870,7 +13883,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_is_ok"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_is_ok(uint32_t o) {
@@ -13881,7 +13894,7 @@ jboolean  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_free"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFailHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13891,11 +13904,11 @@ void  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_free")))
 static inline uintptr_t CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UpdateFailHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13903,7 +13916,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailHTLCDecodeErrorZ_clon
        LDKCResult_UpdateFailHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(orig & ~1);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_ok"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_ok(uint32_t o) {
@@ -13914,7 +13927,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeEr
        o_conv = UpdateFailMalformedHTLC_clone(&o_conv);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_err"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_err(uint32_t e) {
@@ -13925,7 +13938,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeEr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_is_ok"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_is_ok(uint32_t o) {
@@ -13936,7 +13949,7 @@ jboolean  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeEr
 
 void  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_free"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -13946,11 +13959,11 @@ void  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ
 static inline uintptr_t CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -13958,7 +13971,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFailMalformedHTLCDecodeEr
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(orig & ~1);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_ok"))) TS_CResult_UpdateFeeDecodeErrorZ_ok(uint32_t o) {
@@ -13969,7 +13982,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_ok"))) TS
        o_conv = UpdateFee_clone(&o_conv);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_err"))) TS_CResult_UpdateFeeDecodeErrorZ_err(uint32_t e) {
@@ -13980,7 +13993,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_err"))) T
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_is_ok"))) TS_CResult_UpdateFeeDecodeErrorZ_is_ok(uint32_t o) {
@@ -13991,7 +14004,7 @@ jboolean  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_is_ok")))
 
 void  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_free"))) TS_CResult_UpdateFeeDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFeeDecodeErrorZ _res_conv = *(LDKCResult_UpdateFeeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14001,11 +14014,11 @@ void  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_free"))) TS_C
 static inline uintptr_t CResult_UpdateFeeDecodeErrorZ_clone_ptr(LDKCResult_UpdateFeeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFeeDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFeeDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UpdateFeeDecodeErrorZ* arg_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UpdateFeeDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UpdateFeeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14013,7 +14026,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFeeDecodeErrorZ_clone")))
        LDKCResult_UpdateFeeDecodeErrorZ* orig_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(orig & ~1);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_ok"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_ok(uint32_t o) {
@@ -14024,7 +14037,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_o
        o_conv = UpdateFulfillHTLC_clone(&o_conv);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_err"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_err(uint32_t e) {
@@ -14035,7 +14048,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_e
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_is_ok"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_is_ok(uint32_t o) {
@@ -14046,7 +14059,7 @@ jboolean  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_i
 
 void  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_free"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14056,11 +14069,11 @@ void  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_free"
 static inline uintptr_t CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFulfillHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14068,7 +14081,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateFulfillHTLCDecodeErrorZ_c
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(orig & ~1);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_ok"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_ok(uint32_t o) {
@@ -14079,7 +14092,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_ok"))
        o_conv = UpdateAddHTLC_clone(&o_conv);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_err"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_err(uint32_t e) {
@@ -14090,7 +14103,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_is_ok"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_is_ok(uint32_t o) {
@@ -14101,7 +14114,7 @@ jboolean  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_free"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateAddHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateAddHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14111,11 +14124,11 @@ void  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_free")))
 static inline uintptr_t CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateAddHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr"))) TS_CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UpdateAddHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14123,7 +14136,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UpdateAddHTLCDecodeErrorZ_clone
        LDKCResult_UpdateAddHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(orig & ~1);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_ok"))) TS_CResult_PingDecodeErrorZ_ok(uint32_t o) {
@@ -14134,7 +14147,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_ok"))) TS_CRes
        o_conv = Ping_clone(&o_conv);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_err"))) TS_CResult_PingDecodeErrorZ_err(uint32_t e) {
@@ -14145,7 +14158,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_err"))) TS_CRe
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_is_ok"))) TS_CResult_PingDecodeErrorZ_is_ok(uint32_t o) {
@@ -14156,7 +14169,7 @@ jboolean  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_is_ok"))) TS_C
 
 void  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_free"))) TS_CResult_PingDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PingDecodeErrorZ _res_conv = *(LDKCResult_PingDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14166,11 +14179,11 @@ void  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_free"))) TS_CResul
 static inline uintptr_t CResult_PingDecodeErrorZ_clone_ptr(LDKCResult_PingDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_clone_ptr"))) TS_CResult_PingDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_clone_ptr"))) TS_CResult_PingDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PingDecodeErrorZ* arg_conv = (LDKCResult_PingDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PingDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PingDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14178,7 +14191,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PingDecodeErrorZ_clone"))) TS_C
        LDKCResult_PingDecodeErrorZ* orig_conv = (LDKCResult_PingDecodeErrorZ*)(orig & ~1);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_ok"))) TS_CResult_PongDecodeErrorZ_ok(uint32_t o) {
@@ -14189,7 +14202,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_ok"))) TS_CRes
        o_conv = Pong_clone(&o_conv);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_err"))) TS_CResult_PongDecodeErrorZ_err(uint32_t e) {
@@ -14200,7 +14213,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_err"))) TS_CRe
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_is_ok"))) TS_CResult_PongDecodeErrorZ_is_ok(uint32_t o) {
@@ -14211,7 +14224,7 @@ jboolean  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_is_ok"))) TS_C
 
 void  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_free"))) TS_CResult_PongDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PongDecodeErrorZ _res_conv = *(LDKCResult_PongDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14221,11 +14234,11 @@ void  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_free"))) TS_CResul
 static inline uintptr_t CResult_PongDecodeErrorZ_clone_ptr(LDKCResult_PongDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_clone_ptr"))) TS_CResult_PongDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_clone_ptr"))) TS_CResult_PongDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PongDecodeErrorZ* arg_conv = (LDKCResult_PongDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PongDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PongDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14233,7 +14246,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PongDecodeErrorZ_clone"))) TS_C
        LDKCResult_PongDecodeErrorZ* orig_conv = (LDKCResult_PongDecodeErrorZ*)(orig & ~1);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_ok"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_ok(uint32_t o) {
@@ -14244,7 +14257,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDeco
        o_conv = UnsignedChannelAnnouncement_clone(&o_conv);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_err"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_err(uint32_t e) {
@@ -14255,7 +14268,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDeco
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_is_ok"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_is_ok(uint32_t o) {
@@ -14266,7 +14279,7 @@ jboolean  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDeco
 
 void  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_free"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14276,11 +14289,11 @@ void  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeEr
 static inline uintptr_t CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14288,7 +14301,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelAnnouncementDeco
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(orig & ~1);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_ok"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_ok(uint32_t o) {
@@ -14299,7 +14312,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ
        o_conv = ChannelAnnouncement_clone(&o_conv);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_err"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_err(uint32_t e) {
@@ -14310,7 +14323,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_is_ok"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_is_ok(uint32_t o) {
@@ -14321,7 +14334,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ
 
 void  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_free"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_ChannelAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14331,11 +14344,11 @@ void  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_fre
 static inline uintptr_t CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_ChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14343,7 +14356,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelAnnouncementDecodeErrorZ
        LDKCResult_ChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_ok"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_ok(uint32_t o) {
@@ -14354,7 +14367,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErro
        o_conv = UnsignedChannelUpdate_clone(&o_conv);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_err"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_err(uint32_t e) {
@@ -14365,7 +14378,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErro
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_is_ok"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_is_ok(uint32_t o) {
@@ -14376,7 +14389,7 @@ jboolean  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErro
 
 void  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_free"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14386,11 +14399,11 @@ void  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_f
 static inline uintptr_t CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14398,7 +14411,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedChannelUpdateDecodeErro
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(orig & ~1);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_ok"))) TS_CResult_ChannelUpdateDecodeErrorZ_ok(uint32_t o) {
@@ -14409,7 +14422,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_ok"))
        o_conv = ChannelUpdate_clone(&o_conv);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_err"))) TS_CResult_ChannelUpdateDecodeErrorZ_err(uint32_t e) {
@@ -14420,7 +14433,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_err")
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_is_ok"))) TS_CResult_ChannelUpdateDecodeErrorZ_is_ok(uint32_t o) {
@@ -14431,7 +14444,7 @@ jboolean  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_free"))) TS_CResult_ChannelUpdateDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14441,11 +14454,11 @@ void  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_free")))
 static inline uintptr_t CResult_ChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_clone_ptr"))) TS_CResult_ChannelUpdateDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14453,7 +14466,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ChannelUpdateDecodeErrorZ_clone
        LDKCResult_ChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(orig & ~1);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_ok"))) TS_CResult_ErrorMessageDecodeErrorZ_ok(uint32_t o) {
@@ -14464,7 +14477,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_ok")))
        o_conv = ErrorMessage_clone(&o_conv);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_err"))) TS_CResult_ErrorMessageDecodeErrorZ_err(uint32_t e) {
@@ -14475,7 +14488,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_err"))
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_is_ok"))) TS_CResult_ErrorMessageDecodeErrorZ_is_ok(uint32_t o) {
@@ -14486,7 +14499,7 @@ jboolean  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_free"))) TS_CResult_ErrorMessageDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ErrorMessageDecodeErrorZ _res_conv = *(LDKCResult_ErrorMessageDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14496,11 +14509,11 @@ void  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_free"))) T
 static inline uintptr_t CResult_ErrorMessageDecodeErrorZ_clone_ptr(LDKCResult_ErrorMessageDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_clone_ptr"))) TS_CResult_ErrorMessageDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_clone_ptr"))) TS_CResult_ErrorMessageDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ErrorMessageDecodeErrorZ* arg_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ErrorMessageDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ErrorMessageDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14508,7 +14521,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ErrorMessageDecodeErrorZ_clone"
        LDKCResult_ErrorMessageDecodeErrorZ* orig_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(orig & ~1);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_ok"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_ok(uint32_t o) {
@@ -14519,7 +14532,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeE
        o_conv = UnsignedNodeAnnouncement_clone(&o_conv);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_err"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_err(uint32_t e) {
@@ -14530,7 +14543,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeE
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_is_ok"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_is_ok(uint32_t o) {
@@ -14541,7 +14554,7 @@ jboolean  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeE
 
 void  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_free"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14551,11 +14564,11 @@ void  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeError
 static inline uintptr_t CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14563,7 +14576,7 @@ uint32_t  __attribute__((export_name("TS_CResult_UnsignedNodeAnnouncementDecodeE
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(orig & ~1);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_ok"))) TS_CResult_NodeAnnouncementDecodeErrorZ_ok(uint32_t o) {
@@ -14574,7 +14587,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_ok
        o_conv = NodeAnnouncement_clone(&o_conv);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_err"))) TS_CResult_NodeAnnouncementDecodeErrorZ_err(uint32_t e) {
@@ -14585,7 +14598,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_er
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_is_ok"))) TS_CResult_NodeAnnouncementDecodeErrorZ_is_ok(uint32_t o) {
@@ -14596,7 +14609,7 @@ jboolean  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_is
 
 void  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_free"))) TS_CResult_NodeAnnouncementDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14606,11 +14619,11 @@ void  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_free")
 static inline uintptr_t CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_clone_ptr"))) TS_CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14618,7 +14631,7 @@ uint32_t  __attribute__((export_name("TS_CResult_NodeAnnouncementDecodeErrorZ_cl
        LDKCResult_NodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(orig & ~1);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_ok"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_ok(uint32_t o) {
@@ -14629,7 +14642,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeError
        o_conv = QueryShortChannelIds_clone(&o_conv);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_err"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_err(uint32_t e) {
@@ -14640,7 +14653,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeError
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_is_ok"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_is_ok(uint32_t o) {
@@ -14651,7 +14664,7 @@ jboolean  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeError
 
 void  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_free"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ _res_conv = *(LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14661,11 +14674,11 @@ void  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_fr
 static inline uintptr_t CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(LDKCResult_QueryShortChannelIdsDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr"))) TS_CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* arg_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14673,7 +14686,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryShortChannelIdsDecodeError
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* orig_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(orig & ~1);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_ok"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_ok(uint32_t o) {
@@ -14684,7 +14697,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeEr
        o_conv = ReplyShortChannelIdsEnd_clone(&o_conv);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_err"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_err(uint32_t e) {
@@ -14695,7 +14708,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeEr
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_is_ok"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_is_ok(uint32_t o) {
@@ -14706,7 +14719,7 @@ jboolean  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeEr
 
 void  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_free"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ _res_conv = *(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14716,11 +14729,11 @@ void  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ
 static inline uintptr_t CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr"))) TS_CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* arg_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14728,7 +14741,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyShortChannelIdsEndDecodeEr
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* orig_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(orig & ~1);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_ok"))) TS_CResult_QueryChannelRangeDecodeErrorZ_ok(uint32_t o) {
@@ -14739,7 +14752,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_o
        o_conv = QueryChannelRange_clone(&o_conv);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_err"))) TS_CResult_QueryChannelRangeDecodeErrorZ_err(uint32_t e) {
@@ -14750,7 +14763,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_e
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_is_ok"))) TS_CResult_QueryChannelRangeDecodeErrorZ_is_ok(uint32_t o) {
@@ -14761,7 +14774,7 @@ jboolean  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_i
 
 void  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_free"))) TS_CResult_QueryChannelRangeDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_QueryChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_QueryChannelRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14771,11 +14784,11 @@ void  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_free"
 static inline uintptr_t CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_QueryChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_clone_ptr"))) TS_CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_clone_ptr"))) TS_CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_QueryChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14783,7 +14796,7 @@ uint32_t  __attribute__((export_name("TS_CResult_QueryChannelRangeDecodeErrorZ_c
        LDKCResult_QueryChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(orig & ~1);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_ok"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_ok(uint32_t o) {
@@ -14794,7 +14807,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_o
        o_conv = ReplyChannelRange_clone(&o_conv);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_err"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_err(uint32_t e) {
@@ -14805,7 +14818,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_e
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_is_ok"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_is_ok(uint32_t o) {
@@ -14816,7 +14829,7 @@ jboolean  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_i
 
 void  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_free"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ReplyChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_ReplyChannelRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14826,11 +14839,11 @@ void  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_free"
 static inline uintptr_t CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_ReplyChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr"))) TS_CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_ReplyChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14838,7 +14851,7 @@ uint32_t  __attribute__((export_name("TS_CResult_ReplyChannelRangeDecodeErrorZ_c
        LDKCResult_ReplyChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(orig & ~1);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_ok"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_ok(uint32_t o) {
@@ -14849,7 +14862,7 @@ uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErro
        o_conv = GossipTimestampFilter_clone(&o_conv);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_err"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_err(uint32_t e) {
@@ -14860,7 +14873,7 @@ uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErro
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_is_ok"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_is_ok(uint32_t o) {
@@ -14871,7 +14884,7 @@ jboolean  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErro
 
 void  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_free"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_GossipTimestampFilterDecodeErrorZ _res_conv = *(LDKCResult_GossipTimestampFilterDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14881,11 +14894,11 @@ void  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_f
 static inline uintptr_t CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(LDKCResult_GossipTimestampFilterDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr"))) TS_CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_GossipTimestampFilterDecodeErrorZ* arg_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14893,7 +14906,7 @@ uint32_t  __attribute__((export_name("TS_CResult_GossipTimestampFilterDecodeErro
        LDKCResult_GossipTimestampFilterDecodeErrorZ* orig_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(orig & ~1);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_ok"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_ok(uint32_t o) {
@@ -14904,7 +14917,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorD
        o_conv = DelayedPaymentOutputDescriptor_clone(&o_conv);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_err"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_err(uint32_t e) {
@@ -14915,7 +14928,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorD
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_is_ok"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_is_ok(uint32_t o) {
@@ -14926,7 +14939,7 @@ jboolean  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorD
 
 void  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_free"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14936,11 +14949,11 @@ void  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecod
 static inline uintptr_t CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -14948,7 +14961,7 @@ uint32_t  __attribute__((export_name("TS_CResult_DelayedPaymentOutputDescriptorD
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(orig & ~1);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_ok"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_ok(uint32_t o) {
@@ -14959,7 +14972,7 @@ uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDe
        o_conv = StaticPaymentOutputDescriptor_clone(&o_conv);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_err"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_err(uint32_t e) {
@@ -14970,7 +14983,7 @@ uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDe
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_is_ok"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_is_ok(uint32_t o) {
@@ -14981,7 +14994,7 @@ jboolean  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDe
 
 void  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_free"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -14991,11 +15004,11 @@ void  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecode
 static inline uintptr_t CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15003,17 +15016,17 @@ uint32_t  __attribute__((export_name("TS_CResult_StaticPaymentOutputDescriptorDe
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(orig & ~1);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_ok"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKSpendableOutputDescriptor o_conv = *(LDKSpendableOutputDescriptor*)(o_ptr);
-       o_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)o) & ~1));
+       o_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)o) & ~1));
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_err"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_err(uint32_t e) {
@@ -15024,7 +15037,7 @@ uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecode
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_is_ok"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_is_ok(uint32_t o) {
@@ -15035,7 +15048,7 @@ jboolean  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecode
 
 void  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_free"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15045,11 +15058,11 @@ void  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErro
 static inline uintptr_t CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_SpendableOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr"))) TS_CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15057,17 +15070,17 @@ uint32_t  __attribute__((export_name("TS_CResult_SpendableOutputDescriptorDecode
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(orig & ~1);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 static inline uintptr_t C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(LDKC2Tuple_SignatureCVec_SignatureZZ *NONNULL_PTR arg) {
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_clone_ptr"))) TS_C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_clone_ptr"))) TS_C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_SignatureCVec_SignatureZZ* arg_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15075,35 +15088,35 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_clone
        LDKC2Tuple_SignatureCVec_SignatureZZ* orig_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(orig & ~1);
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_new"))) TS_C2Tuple_SignatureCVec_SignatureZZ_new(int8_tArray a, ptrArray b) {
        LDKSignature a_ref;
        CHECK(a->arr_len == 64);
-       memcpy(a_ref.compact_form, a->elems, 64);
+       memcpy(a_ref.compact_form, a->elems, 64); FREE(a);
        LDKCVec_SignatureZ b_constr;
        b_constr.datalen = b->arr_len;
        if (b_constr.datalen > 0)
                b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                b_constr.data = NULL;
-       int8_tArray* b_vals = (void*) b->elems;
+       int8_tArray* b_vals = (void*) b->elems /* XXX b leaks */;
        for (size_t m = 0; m < b_constr.datalen; m++) {
                int8_tArray b_conv_12 = b_vals[m];
                LDKSignature b_conv_12_ref;
                CHECK(b_conv_12->arr_len == 64);
-               memcpy(b_conv_12_ref.compact_form, b_conv_12->elems, 64);
+               memcpy(b_conv_12_ref.compact_form, b_conv_12->elems, 64); FREE(b_conv_12);
                b_constr.data[m] = b_conv_12_ref;
        }
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_new(a_ref, b_constr);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_free"))) TS_C2Tuple_SignatureCVec_SignatureZZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_SignatureCVec_SignatureZZ _res_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15111,19 +15124,19 @@ void  __attribute__((export_name("TS_C2Tuple_SignatureCVec_SignatureZZ_free")))
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_ok"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_SignatureCVec_SignatureZZ o_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(o_ptr);
-       o_conv = C2Tuple_SignatureCVec_SignatureZZ_clone((LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_SignatureCVec_SignatureZZ_clone((LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uintptr_t)o) & ~1));
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_err"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_err() {
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_is_ok"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_is_ok(uint32_t o) {
@@ -15134,7 +15147,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_Signature
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_free"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ _res_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15144,11 +15157,11 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNo
 static inline uintptr_t CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr"))) TS_CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* arg_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15156,22 +15169,22 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_SignatureCVec_Signature
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* orig_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(orig & ~1);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SignatureNoneZ_ok"))) TS_CResult_SignatureNoneZ_ok(int8_tArray o) {
        LDKSignature o_ref;
        CHECK(o->arr_len == 64);
-       memcpy(o_ref.compact_form, o->elems, 64);
+       memcpy(o_ref.compact_form, o->elems, 64); FREE(o);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SignatureNoneZ_err"))) TS_CResult_SignatureNoneZ_err() {
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_SignatureNoneZ_is_ok"))) TS_CResult_SignatureNoneZ_is_ok(uint32_t o) {
@@ -15182,7 +15195,7 @@ jboolean  __attribute__((export_name("TS_CResult_SignatureNoneZ_is_ok"))) TS_CRe
 
 void  __attribute__((export_name("TS_CResult_SignatureNoneZ_free"))) TS_CResult_SignatureNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SignatureNoneZ _res_conv = *(LDKCResult_SignatureNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15192,11 +15205,11 @@ void  __attribute__((export_name("TS_CResult_SignatureNoneZ_free"))) TS_CResult_
 static inline uintptr_t CResult_SignatureNoneZ_clone_ptr(LDKCResult_SignatureNoneZ *NONNULL_PTR arg) {
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_SignatureNoneZ_clone_ptr"))) TS_CResult_SignatureNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_SignatureNoneZ_clone_ptr"))) TS_CResult_SignatureNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_SignatureNoneZ* arg_conv = (LDKCResult_SignatureNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_SignatureNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_SignatureNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15204,16 +15217,16 @@ uint32_t  __attribute__((export_name("TS_CResult_SignatureNoneZ_clone"))) TS_CRe
        LDKCResult_SignatureNoneZ* orig_conv = (LDKCResult_SignatureNoneZ*)(orig & ~1);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_ok"))) TS_CResult_SignDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKSign o_conv = *(LDKSign*)(o_ptr);
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_err"))) TS_CResult_SignDecodeErrorZ_err(uint32_t e) {
@@ -15224,7 +15237,7 @@ uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_err"))) TS_CRe
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_is_ok"))) TS_CResult_SignDecodeErrorZ_is_ok(uint32_t o) {
@@ -15235,7 +15248,7 @@ jboolean  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_is_ok"))) TS_C
 
 void  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_free"))) TS_CResult_SignDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SignDecodeErrorZ _res_conv = *(LDKCResult_SignDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15245,11 +15258,11 @@ void  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_free"))) TS_CResul
 static inline uintptr_t CResult_SignDecodeErrorZ_clone_ptr(LDKCResult_SignDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_clone_ptr"))) TS_CResult_SignDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_clone_ptr"))) TS_CResult_SignDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_SignDecodeErrorZ* arg_conv = (LDKCResult_SignDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_SignDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_SignDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15257,22 +15270,22 @@ uint32_t  __attribute__((export_name("TS_CResult_SignDecodeErrorZ_clone"))) TS_C
        LDKCResult_SignDecodeErrorZ* orig_conv = (LDKCResult_SignDecodeErrorZ*)(orig & ~1);
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_ok"))) TS_CResult_RecoverableSignatureNoneZ_ok(int8_tArray o) {
        LDKRecoverableSignature o_ref;
        CHECK(o->arr_len == 68);
-       memcpy(o_ref.serialized_form, o->elems, 68);
+       memcpy(o_ref.serialized_form, o->elems, 68); FREE(o);
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_err"))) TS_CResult_RecoverableSignatureNoneZ_err() {
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_is_ok"))) TS_CResult_RecoverableSignatureNoneZ_is_ok(uint32_t o) {
@@ -15283,7 +15296,7 @@ jboolean  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_free"))) TS_CResult_RecoverableSignatureNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RecoverableSignatureNoneZ _res_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15293,11 +15306,11 @@ void  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_free")))
 static inline uintptr_t CResult_RecoverableSignatureNoneZ_clone_ptr(LDKCResult_RecoverableSignatureNoneZ *NONNULL_PTR arg) {
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_clone_ptr"))) TS_CResult_RecoverableSignatureNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_clone_ptr"))) TS_CResult_RecoverableSignatureNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_RecoverableSignatureNoneZ* arg_conv = (LDKCResult_RecoverableSignatureNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_RecoverableSignatureNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_RecoverableSignatureNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15305,7 +15318,7 @@ uint32_t  __attribute__((export_name("TS_CResult_RecoverableSignatureNoneZ_clone
        LDKCResult_RecoverableSignatureNoneZ* orig_conv = (LDKCResult_RecoverableSignatureNoneZ*)(orig & ~1);
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_CVec_u8ZZ_free"))) TS_CVec_CVec_u8ZZ_free(ptrArray _res) {
@@ -15315,13 +15328,13 @@ void  __attribute__((export_name("TS_CVec_CVec_u8ZZ_free"))) TS_CVec_CVec_u8ZZ_f
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKCVec_u8Z), "LDKCVec_CVec_u8ZZ Elements");
        else
                _res_constr.data = NULL;
-       int8_tArray* _res_vals = (void*) _res->elems;
+       int8_tArray* _res_vals = (void*) _res->elems /* XXX _res leaks */;
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int8_tArray _res_conv_12 = _res_vals[m];
                LDKCVec_u8Z _res_conv_12_ref;
                _res_conv_12_ref.datalen = _res_conv_12->arr_len;
                _res_conv_12_ref.data = MALLOC(_res_conv_12_ref.datalen, "LDKCVec_u8Z Bytes");
-               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, _res_conv_12_ref.datalen);
+               memcpy(_res_conv_12_ref.data, _res_conv_12->elems, _res_conv_12_ref.datalen); FREE(_res_conv_12);
                _res_constr.data[m] = _res_conv_12_ref;
        }
        CVec_CVec_u8ZZ_free(_res_constr);
@@ -15334,24 +15347,24 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_ok"))) TS_C
                o_constr.data = MALLOC(o_constr.datalen * sizeof(LDKCVec_u8Z), "LDKCVec_CVec_u8ZZ Elements");
        else
                o_constr.data = NULL;
-       int8_tArray* o_vals = (void*) o->elems;
+       int8_tArray* o_vals = (void*) o->elems /* XXX o leaks */;
        for (size_t m = 0; m < o_constr.datalen; m++) {
                int8_tArray o_conv_12 = o_vals[m];
                LDKCVec_u8Z o_conv_12_ref;
                o_conv_12_ref.datalen = o_conv_12->arr_len;
                o_conv_12_ref.data = MALLOC(o_conv_12_ref.datalen, "LDKCVec_u8Z Bytes");
-               memcpy(o_conv_12_ref.data, o_conv_12->elems, o_conv_12_ref.datalen);
+               memcpy(o_conv_12_ref.data, o_conv_12->elems, o_conv_12_ref.datalen); FREE(o_conv_12);
                o_constr.data[m] = o_conv_12_ref;
        }
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_ok(o_constr);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_err"))) TS_CResult_CVec_CVec_u8ZZNoneZ_err() {
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_is_ok"))) TS_CResult_CVec_CVec_u8ZZNoneZ_is_ok(uint32_t o) {
@@ -15362,7 +15375,7 @@ jboolean  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_is_ok"))) T
 
 void  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_free"))) TS_CResult_CVec_CVec_u8ZZNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_CVec_u8ZZNoneZ _res_conv = *(LDKCResult_CVec_CVec_u8ZZNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15372,11 +15385,11 @@ void  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_free"))) TS_CRe
 static inline uintptr_t CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(LDKCResult_CVec_CVec_u8ZZNoneZ *NONNULL_PTR arg) {
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_clone_ptr"))) TS_CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_clone_ptr"))) TS_CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_CVec_CVec_u8ZZNoneZ* arg_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15384,7 +15397,7 @@ uint32_t  __attribute__((export_name("TS_CResult_CVec_CVec_u8ZZNoneZ_clone"))) T
        LDKCResult_CVec_CVec_u8ZZNoneZ* orig_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(orig & ~1);
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_ok"))) TS_CResult_InMemorySignerDecodeErrorZ_ok(uint32_t o) {
@@ -15395,7 +15408,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_ok")
        o_conv = InMemorySigner_clone(&o_conv);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_err"))) TS_CResult_InMemorySignerDecodeErrorZ_err(uint32_t e) {
@@ -15406,7 +15419,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_err"
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_is_ok"))) TS_CResult_InMemorySignerDecodeErrorZ_is_ok(uint32_t o) {
@@ -15417,7 +15430,7 @@ jboolean  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_is_o
 
 void  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_free"))) TS_CResult_InMemorySignerDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InMemorySignerDecodeErrorZ _res_conv = *(LDKCResult_InMemorySignerDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15427,11 +15440,11 @@ void  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_free")))
 static inline uintptr_t CResult_InMemorySignerDecodeErrorZ_clone_ptr(LDKCResult_InMemorySignerDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_clone_ptr"))) TS_CResult_InMemorySignerDecodeErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_clone_ptr"))) TS_CResult_InMemorySignerDecodeErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_InMemorySignerDecodeErrorZ* arg_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_InMemorySignerDecodeErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_InMemorySignerDecodeErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15439,7 +15452,7 @@ uint32_t  __attribute__((export_name("TS_CResult_InMemorySignerDecodeErrorZ_clon
        LDKCResult_InMemorySignerDecodeErrorZ* orig_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(orig & ~1);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_TxOutZ_free"))) TS_CVec_TxOutZ_free(uint32_tArray _res) {
@@ -15449,10 +15462,10 @@ void  __attribute__((export_name("TS_CVec_TxOutZ_free"))) TS_CVec_TxOutZ_free(ui
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKTxOut), "LDKCVec_TxOutZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                uint32_t _res_conv_7 = _res_vals[h];
-               void* _res_conv_7_ptr = (void*)(((uint64_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = (void*)(((uintptr_t)_res_conv_7) & ~1);
                CHECK_ACCESS(_res_conv_7_ptr);
                LDKTxOut _res_conv_7_conv = *(LDKTxOut*)(_res_conv_7_ptr);
                FREE((void*)_res_conv_7);
@@ -15465,17 +15478,17 @@ uint32_t  __attribute__((export_name("TS_CResult_TransactionNoneZ_ok"))) TS_CRes
        LDKTransaction o_ref;
        o_ref.datalen = o->arr_len;
        o_ref.data = MALLOC(o_ref.datalen, "LDKTransaction Bytes");
-       memcpy(o_ref.data, o->elems, o_ref.datalen);
+       memcpy(o_ref.data, o->elems, o_ref.datalen); FREE(o);
        o_ref.data_is_owned = true;
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_TransactionNoneZ_err"))) TS_CResult_TransactionNoneZ_err() {
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_TransactionNoneZ_is_ok"))) TS_CResult_TransactionNoneZ_is_ok(uint32_t o) {
@@ -15486,7 +15499,7 @@ jboolean  __attribute__((export_name("TS_CResult_TransactionNoneZ_is_ok"))) TS_C
 
 void  __attribute__((export_name("TS_CResult_TransactionNoneZ_free"))) TS_CResult_TransactionNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TransactionNoneZ _res_conv = *(LDKCResult_TransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15496,11 +15509,11 @@ void  __attribute__((export_name("TS_CResult_TransactionNoneZ_free"))) TS_CResul
 static inline uintptr_t CResult_TransactionNoneZ_clone_ptr(LDKCResult_TransactionNoneZ *NONNULL_PTR arg) {
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_TransactionNoneZ_clone_ptr"))) TS_CResult_TransactionNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_TransactionNoneZ_clone_ptr"))) TS_CResult_TransactionNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_TransactionNoneZ* arg_conv = (LDKCResult_TransactionNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_TransactionNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_TransactionNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15508,29 +15521,29 @@ uint32_t  __attribute__((export_name("TS_CResult_TransactionNoneZ_clone"))) TS_C
        LDKCResult_TransactionNoneZ* orig_conv = (LDKCResult_TransactionNoneZ*)(orig & ~1);
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_FilterZ_some"))) TS_COption_FilterZ_some(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKFilter o_conv = *(LDKFilter*)(o_ptr);
        LDKCOption_FilterZ *ret_copy = MALLOC(sizeof(LDKCOption_FilterZ), "LDKCOption_FilterZ");
        *ret_copy = COption_FilterZ_some(o_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_FilterZ_none"))) TS_COption_FilterZ_none() {
        LDKCOption_FilterZ *ret_copy = MALLOC(sizeof(LDKCOption_FilterZ), "LDKCOption_FilterZ");
        *ret_copy = COption_FilterZ_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_FilterZ_free"))) TS_COption_FilterZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_FilterZ _res_conv = *(LDKCOption_FilterZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15545,13 +15558,13 @@ uint32_t  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_ok"))
        // Warning: we need a move here but no clone is available for LDKLockedChannelMonitor
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = CResult_LockedChannelMonitorNoneZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_err"))) TS_CResult_LockedChannelMonitorNoneZ_err() {
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = CResult_LockedChannelMonitorNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_is_ok"))) TS_CResult_LockedChannelMonitorNoneZ_is_ok(uint32_t o) {
@@ -15562,7 +15575,7 @@ jboolean  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_is_ok
 
 void  __attribute__((export_name("TS_CResult_LockedChannelMonitorNoneZ_free"))) TS_CResult_LockedChannelMonitorNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_LockedChannelMonitorNoneZ _res_conv = *(LDKCResult_LockedChannelMonitorNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15576,7 +15589,7 @@ void  __attribute__((export_name("TS_CVec_OutPointZ_free"))) TS_CVec_OutPointZ_f
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKOutPoint), "LDKCVec_OutPointZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                uint32_t _res_conv_10 = _res_vals[k];
                LDKOutPoint _res_conv_10_conv;
@@ -15591,17 +15604,17 @@ void  __attribute__((export_name("TS_CVec_OutPointZ_free"))) TS_CVec_OutPointZ_f
 uint32_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_ok"))) TS_CResult_NoneAPIErrorZ_ok() {
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_err"))) TS_CResult_NoneAPIErrorZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_is_ok"))) TS_CResult_NoneAPIErrorZ_is_ok(uint32_t o) {
@@ -15612,7 +15625,7 @@ jboolean  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_is_ok"))) TS_CRes
 
 void  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_free"))) TS_CResult_NoneAPIErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneAPIErrorZ _res_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15622,11 +15635,11 @@ void  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_free"))) TS_CResult_N
 static inline uintptr_t CResult_NoneAPIErrorZ_clone_ptr(LDKCResult_NoneAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_clone_ptr"))) TS_CResult_NoneAPIErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_clone_ptr"))) TS_CResult_NoneAPIErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_NoneAPIErrorZ* arg_conv = (LDKCResult_NoneAPIErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_NoneAPIErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NoneAPIErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15634,26 +15647,26 @@ uint32_t  __attribute__((export_name("TS_CResult_NoneAPIErrorZ_clone"))) TS_CRes
        LDKCResult_NoneAPIErrorZ* orig_conv = (LDKCResult_NoneAPIErrorZ*)(orig & ~1);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_u16Z_some"))) TS_COption_u16Z_some(int16_t o) {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_some(o);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_COption_u16Z_none"))) TS_COption_u16Z_none() {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_none();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_COption_u16Z_free"))) TS_COption_u16Z_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u16Z _res_conv = *(LDKCOption_u16Z*)(_res_ptr);
        FREE((void*)_res);
@@ -15663,12 +15676,12 @@ void  __attribute__((export_name("TS_COption_u16Z_free"))) TS_COption_u16Z_free(
 static inline uintptr_t COption_u16Z_clone_ptr(LDKCOption_u16Z *NONNULL_PTR arg) {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_COption_u16Z_clone_ptr"))) TS_COption_u16Z_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_COption_u16Z_clone_ptr"))) TS_COption_u16Z_clone_ptr(uint32_t arg) {
        LDKCOption_u16Z* arg_conv = (LDKCOption_u16Z*)arg;
-       int64_t ret_val = COption_u16Z_clone_ptr(arg_conv);
+       intptr_t ret_val = COption_u16Z_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15676,7 +15689,7 @@ uint32_t  __attribute__((export_name("TS_COption_u16Z_clone"))) TS_COption_u16Z_
        LDKCOption_u16Z* orig_conv = (LDKCOption_u16Z*)orig;
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -15687,10 +15700,10 @@ void  __attribute__((export_name("TS_CVec_CResult_NoneAPIErrorZZ_free"))) TS_CVe
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKCResult_NoneAPIErrorZ), "LDKCVec_CResult_NoneAPIErrorZZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t w = 0; w < _res_constr.datalen; w++) {
                uint32_t _res_conv_22 = _res_vals[w];
-               void* _res_conv_22_ptr = (void*)(((uint64_t)_res_conv_22) & ~1);
+               void* _res_conv_22_ptr = (void*)(((uintptr_t)_res_conv_22) & ~1);
                CHECK_ACCESS(_res_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ _res_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_conv_22_ptr);
                FREE((void*)_res_conv_22);
@@ -15706,10 +15719,10 @@ void  __attribute__((export_name("TS_CVec_APIErrorZ_free"))) TS_CVec_APIErrorZ_f
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKAPIError), "LDKCVec_APIErrorZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                uint32_t _res_conv_10 = _res_vals[k];
-               void* _res_conv_10_ptr = (void*)(((uint64_t)_res_conv_10) & ~1);
+               void* _res_conv_10_ptr = (void*)(((uintptr_t)_res_conv_10) & ~1);
                CHECK_ACCESS(_res_conv_10_ptr);
                LDKAPIError _res_conv_10_conv = *(LDKAPIError*)(_res_conv_10_ptr);
                FREE((void*)_res_conv_10);
@@ -15721,20 +15734,20 @@ void  __attribute__((export_name("TS_CVec_APIErrorZ_free"))) TS_CVec_APIErrorZ_f
 uint32_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_ok"))) TS_CResult__u832APIErrorZ_ok(int8_tArray o) {
        LDKThirtyTwoBytes o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.data, o->elems, 32);
+       memcpy(o_ref.data, o->elems, 32); FREE(o);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_err"))) TS_CResult__u832APIErrorZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult__u832APIErrorZ_is_ok"))) TS_CResult__u832APIErrorZ_is_ok(uint32_t o) {
@@ -15745,7 +15758,7 @@ jboolean  __attribute__((export_name("TS_CResult__u832APIErrorZ_is_ok"))) TS_CRe
 
 void  __attribute__((export_name("TS_CResult__u832APIErrorZ_free"))) TS_CResult__u832APIErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult__u832APIErrorZ _res_conv = *(LDKCResult__u832APIErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15755,11 +15768,11 @@ void  __attribute__((export_name("TS_CResult__u832APIErrorZ_free"))) TS_CResult_
 static inline uintptr_t CResult__u832APIErrorZ_clone_ptr(LDKCResult__u832APIErrorZ *NONNULL_PTR arg) {
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_clone_ptr"))) TS_CResult__u832APIErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_clone_ptr"))) TS_CResult__u832APIErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult__u832APIErrorZ* arg_conv = (LDKCResult__u832APIErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult__u832APIErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult__u832APIErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15767,26 +15780,26 @@ uint32_t  __attribute__((export_name("TS_CResult__u832APIErrorZ_clone"))) TS_CRe
        LDKCResult__u832APIErrorZ* orig_conv = (LDKCResult__u832APIErrorZ*)(orig & ~1);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_ok"))) TS_CResult_PaymentIdPaymentSendFailureZ_ok(int8_tArray o) {
        LDKThirtyTwoBytes o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.data, o->elems, 32);
+       memcpy(o_ref.data, o->elems, 32); FREE(o);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_err"))) TS_CResult_PaymentIdPaymentSendFailureZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_is_ok"))) TS_CResult_PaymentIdPaymentSendFailureZ_is_ok(uint32_t o) {
@@ -15797,7 +15810,7 @@ jboolean  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_is
 
 void  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_free"))) TS_CResult_PaymentIdPaymentSendFailureZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentIdPaymentSendFailureZ _res_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15807,11 +15820,11 @@ void  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_free")
 static inline uintptr_t CResult_PaymentIdPaymentSendFailureZ_clone_ptr(LDKCResult_PaymentIdPaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_clone_ptr"))) TS_CResult_PaymentIdPaymentSendFailureZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_clone_ptr"))) TS_CResult_PaymentIdPaymentSendFailureZ_clone_ptr(uint32_t arg) {
        LDKCResult_PaymentIdPaymentSendFailureZ* arg_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(arg & ~1);
-       int64_t ret_val = CResult_PaymentIdPaymentSendFailureZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PaymentIdPaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15819,23 +15832,23 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentIdPaymentSendFailureZ_cl
        LDKCResult_PaymentIdPaymentSendFailureZ* orig_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(orig & ~1);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_ok"))) TS_CResult_NonePaymentSendFailureZ_ok() {
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_ok();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_err"))) TS_CResult_NonePaymentSendFailureZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_is_ok"))) TS_CResult_NonePaymentSendFailureZ_is_ok(uint32_t o) {
@@ -15846,7 +15859,7 @@ jboolean  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_is_ok")
 
 void  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_free"))) TS_CResult_NonePaymentSendFailureZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NonePaymentSendFailureZ _res_conv = *(LDKCResult_NonePaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15856,11 +15869,11 @@ void  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_free"))) TS
 static inline uintptr_t CResult_NonePaymentSendFailureZ_clone_ptr(LDKCResult_NonePaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_clone_ptr"))) TS_CResult_NonePaymentSendFailureZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_clone_ptr"))) TS_CResult_NonePaymentSendFailureZ_clone_ptr(uint32_t arg) {
        LDKCResult_NonePaymentSendFailureZ* arg_conv = (LDKCResult_NonePaymentSendFailureZ*)(arg & ~1);
-       int64_t ret_val = CResult_NonePaymentSendFailureZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_NonePaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15868,17 +15881,17 @@ uint32_t  __attribute__((export_name("TS_CResult_NonePaymentSendFailureZ_clone")
        LDKCResult_NonePaymentSendFailureZ* orig_conv = (LDKCResult_NonePaymentSendFailureZ*)(orig & ~1);
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 static inline uintptr_t C2Tuple_PaymentHashPaymentIdZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentIdZ *NONNULL_PTR arg) {
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_clone_ptr"))) TS_C2Tuple_PaymentHashPaymentIdZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_clone_ptr"))) TS_C2Tuple_PaymentHashPaymentIdZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_PaymentHashPaymentIdZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_PaymentHashPaymentIdZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_PaymentHashPaymentIdZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15886,24 +15899,24 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_clone")))
        LDKC2Tuple_PaymentHashPaymentIdZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(orig & ~1);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_new"))) TS_C2Tuple_PaymentHashPaymentIdZ_new(int8_tArray a, int8_tArray b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKThirtyTwoBytes b_ref;
        CHECK(b->arr_len == 32);
-       memcpy(b_ref.data, b->elems, 32);
+       memcpy(b_ref.data, b->elems, 32); FREE(b);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_new(a_ref, b_ref);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_free"))) TS_C2Tuple_PaymentHashPaymentIdZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PaymentHashPaymentIdZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15911,23 +15924,23 @@ void  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentIdZ_free"))) TS_C
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentIdZ o_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentIdZ_clone((LDKC2Tuple_PaymentHashPaymentIdZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentIdZ_clone((LDKC2Tuple_PaymentHashPaymentIdZ*)(((uintptr_t)o) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_is_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_is_ok(uint32_t o) {
@@ -15938,7 +15951,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPa
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_free"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
@@ -15948,11 +15961,11 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymen
 static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(uint32_t arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(arg & ~1);
-       int64_t ret_val = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15960,17 +15973,17 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentIdZPa
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(orig & ~1);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 static inline uintptr_t C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentSecretZ *NONNULL_PTR arg) {
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_clone(arg);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
-int64_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_clone_ptr"))) TS_C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_clone_ptr"))) TS_C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(uint32_t arg) {
        LDKC2Tuple_PaymentHashPaymentSecretZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(arg & ~1);
-       int64_t ret_val = C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(arg_conv);
+       intptr_t ret_val = C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -15978,24 +15991,24 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_clone
        LDKC2Tuple_PaymentHashPaymentSecretZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(orig & ~1);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_clone(orig_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_new"))) TS_C2Tuple_PaymentHashPaymentSecretZ_new(int8_tArray a, int8_tArray b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKThirtyTwoBytes b_ref;
        CHECK(b->arr_len == 32);
-       memcpy(b_ref.data, b->elems, 32);
+       memcpy(b_ref.data, b->elems, 32); FREE(b);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_new(a_ref, b_ref);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_free"))) TS_C2Tuple_PaymentHashPaymentSecretZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16003,19 +16016,19 @@ void  __attribute__((export_name("TS_C2Tuple_PaymentHashPaymentSecretZ_free")))
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ o_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uintptr_t)o) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_err"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_err() {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(uint32_t o) {
@@ -16026,7 +16039,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_free"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16036,11 +16049,11 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNo
 static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16048,27 +16061,27 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(orig & ~1);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ o_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uint64_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uintptr_t)o) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_err"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_is_ok"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_is_ok(uint32_t o) {
@@ -16079,7 +16092,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_free"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16089,11 +16102,11 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAP
 static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr"))) TS_CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16101,22 +16114,22 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_PaymentHashPaymentSecre
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(orig & ~1);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_ok"))) TS_CResult_PaymentSecretNoneZ_ok(int8_tArray o) {
        LDKThirtyTwoBytes o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.data, o->elems, 32);
+       memcpy(o_ref.data, o->elems, 32); FREE(o);
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_err"))) TS_CResult_PaymentSecretNoneZ_err() {
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_err();
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_is_ok"))) TS_CResult_PaymentSecretNoneZ_is_ok(uint32_t o) {
@@ -16127,7 +16140,7 @@ jboolean  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_is_ok"))) TS
 
 void  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_free"))) TS_CResult_PaymentSecretNoneZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentSecretNoneZ _res_conv = *(LDKCResult_PaymentSecretNoneZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16137,11 +16150,11 @@ void  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_free"))) TS_CRes
 static inline uintptr_t CResult_PaymentSecretNoneZ_clone_ptr(LDKCResult_PaymentSecretNoneZ *NONNULL_PTR arg) {
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_clone_ptr"))) TS_CResult_PaymentSecretNoneZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_clone_ptr"))) TS_CResult_PaymentSecretNoneZ_clone_ptr(uint32_t arg) {
        LDKCResult_PaymentSecretNoneZ* arg_conv = (LDKCResult_PaymentSecretNoneZ*)(arg & ~1);
-       int64_t ret_val = CResult_PaymentSecretNoneZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PaymentSecretNoneZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16149,26 +16162,26 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretNoneZ_clone"))) TS
        LDKCResult_PaymentSecretNoneZ* orig_conv = (LDKCResult_PaymentSecretNoneZ*)(orig & ~1);
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_ok"))) TS_CResult_PaymentSecretAPIErrorZ_ok(int8_tArray o) {
        LDKThirtyTwoBytes o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.data, o->elems, 32);
+       memcpy(o_ref.data, o->elems, 32); FREE(o);
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_err"))) TS_CResult_PaymentSecretAPIErrorZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_is_ok"))) TS_CResult_PaymentSecretAPIErrorZ_is_ok(uint32_t o) {
@@ -16179,7 +16192,7 @@ jboolean  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_is_ok"))
 
 void  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_free"))) TS_CResult_PaymentSecretAPIErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentSecretAPIErrorZ _res_conv = *(LDKCResult_PaymentSecretAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16189,11 +16202,11 @@ void  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_free"))) TS_
 static inline uintptr_t CResult_PaymentSecretAPIErrorZ_clone_ptr(LDKCResult_PaymentSecretAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_clone_ptr"))) TS_CResult_PaymentSecretAPIErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_clone_ptr"))) TS_CResult_PaymentSecretAPIErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PaymentSecretAPIErrorZ* arg_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PaymentSecretAPIErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PaymentSecretAPIErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16201,26 +16214,26 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentSecretAPIErrorZ_clone"))
        LDKCResult_PaymentSecretAPIErrorZ* orig_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(orig & ~1);
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_ok"))) TS_CResult_PaymentPreimageAPIErrorZ_ok(int8_tArray o) {
        LDKThirtyTwoBytes o_ref;
        CHECK(o->arr_len == 32);
-       memcpy(o_ref.data, o->elems, 32);
+       memcpy(o_ref.data, o->elems, 32); FREE(o);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_ok(o_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_err"))) TS_CResult_PaymentPreimageAPIErrorZ_err(uint32_t e) {
-       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_is_ok"))) TS_CResult_PaymentPreimageAPIErrorZ_is_ok(uint32_t o) {
@@ -16231,7 +16244,7 @@ jboolean  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_is_ok"
 
 void  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_free"))) TS_CResult_PaymentPreimageAPIErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentPreimageAPIErrorZ _res_conv = *(LDKCResult_PaymentPreimageAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16241,11 +16254,11 @@ void  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_free"))) T
 static inline uintptr_t CResult_PaymentPreimageAPIErrorZ_clone_ptr(LDKCResult_PaymentPreimageAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_clone(arg);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
-int64_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_clone_ptr"))) TS_CResult_PaymentPreimageAPIErrorZ_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_clone_ptr"))) TS_CResult_PaymentPreimageAPIErrorZ_clone_ptr(uint32_t arg) {
        LDKCResult_PaymentPreimageAPIErrorZ* arg_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(arg & ~1);
-       int64_t ret_val = CResult_PaymentPreimageAPIErrorZ_clone_ptr(arg_conv);
+       intptr_t ret_val = CResult_PaymentPreimageAPIErrorZ_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16253,7 +16266,7 @@ uint32_t  __attribute__((export_name("TS_CResult_PaymentPreimageAPIErrorZ_clone"
        LDKCResult_PaymentPreimageAPIErrorZ* orig_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(orig & ~1);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_clone(orig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CVec_ChannelMonitorZ_free"))) TS_CVec_ChannelMonitorZ_free(uint32_tArray _res) {
@@ -16263,7 +16276,7 @@ void  __attribute__((export_name("TS_CVec_ChannelMonitorZ_free"))) TS_CVec_Chann
                _res_constr.data = MALLOC(_res_constr.datalen * sizeof(LDKChannelMonitor), "LDKCVec_ChannelMonitorZ Elements");
        else
                _res_constr.data = NULL;
-       uint32_t* _res_vals = _res->elems;
+       uint32_t* _res_vals = _res->elems /* XXX _res leaks */;
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                uint32_t _res_conv_16 = _res_vals[q];
                LDKChannelMonitor _res_conv_16_conv;
@@ -16278,7 +16291,7 @@ void  __attribute__((export_name("TS_CVec_ChannelMonitorZ_free"))) TS_CVec_Chann
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_new"))) TS_C2Tuple_BlockHashChannelManagerZ_new(int8_tArray a, uint32_t b) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKChannelManager b_conv;
        b_conv.inner = (void*)(b & (~1));
        b_conv.is_owned = (b & 1) || (b == 0);
@@ -16286,12 +16299,12 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_new"))
        // Warning: we need a move here but no clone is available for LDKChannelManager
        LDKC2Tuple_BlockHashChannelManagerZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelManagerZ), "LDKC2Tuple_BlockHashChannelManagerZ");
        *ret_conv = C2Tuple_BlockHashChannelManagerZ_new(a_ref, b_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 void  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_free"))) TS_C2Tuple_BlockHashChannelManagerZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_BlockHashChannelManagerZ _res_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16299,13 +16312,13 @@ void  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_free"))) T
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok(uint32_t o) {
-       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_BlockHashChannelManagerZ o_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(o_ptr);
        // Warning: we may need a move here but no clone is available for LDKC2Tuple_BlockHashChannelManagerZ
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok(o_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_err"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_err(uint32_t e) {
@@ -16316,7 +16329,7 @@ uint32_t  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManager
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_err(e_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_is_ok"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_is_ok(uint32_t o) {
@@ -16327,7 +16340,7 @@ jboolean  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManager
 
 void  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_free"))) TS_CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_free(uint32_t _res) {
        if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
@@ -16336,7 +16349,7 @@ void  __attribute__((export_name("TS_CResult_C2Tuple_BlockHashChannelManagerZDec
 
 void  __attribute__((export_name("TS_PaymentPurpose_free"))) TS_PaymentPurpose_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPaymentPurpose this_ptr_conv = *(LDKPaymentPurpose*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -16346,12 +16359,12 @@ void  __attribute__((export_name("TS_PaymentPurpose_free"))) TS_PaymentPurpose_f
 static inline uintptr_t PaymentPurpose_clone_ptr(LDKPaymentPurpose *NONNULL_PTR arg) {
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_PaymentPurpose_clone_ptr"))) TS_PaymentPurpose_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_PaymentPurpose_clone_ptr"))) TS_PaymentPurpose_clone_ptr(uint32_t arg) {
        LDKPaymentPurpose* arg_conv = (LDKPaymentPurpose*)arg;
-       int64_t ret_val = PaymentPurpose_clone_ptr(arg_conv);
+       intptr_t ret_val = PaymentPurpose_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16359,36 +16372,36 @@ uint32_t  __attribute__((export_name("TS_PaymentPurpose_clone"))) TS_PaymentPurp
        LDKPaymentPurpose* orig_conv = (LDKPaymentPurpose*)orig;
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_PaymentPurpose_invoice_payment"))) TS_PaymentPurpose_invoice_payment(int8_tArray payment_preimage, int8_tArray payment_secret) {
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK(payment_preimage->arr_len == 32);
-       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32);
+       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32); FREE(payment_preimage);
        LDKThirtyTwoBytes payment_secret_ref;
        CHECK(payment_secret->arr_len == 32);
-       memcpy(payment_secret_ref.data, payment_secret->elems, 32);
+       memcpy(payment_secret_ref.data, payment_secret->elems, 32); FREE(payment_secret);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_invoice_payment(payment_preimage_ref, payment_secret_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_PaymentPurpose_spontaneous_payment"))) TS_PaymentPurpose_spontaneous_payment(int8_tArray a) {
        LDKThirtyTwoBytes a_ref;
        CHECK(a->arr_len == 32);
-       memcpy(a_ref.data, a->elems, 32);
+       memcpy(a_ref.data, a->elems, 32); FREE(a);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_spontaneous_payment(a_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_ClosureReason_free"))) TS_ClosureReason_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKClosureReason this_ptr_conv = *(LDKClosureReason*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -16398,12 +16411,12 @@ void  __attribute__((export_name("TS_ClosureReason_free"))) TS_ClosureReason_fre
 static inline uintptr_t ClosureReason_clone_ptr(LDKClosureReason *NONNULL_PTR arg) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ClosureReason_clone_ptr"))) TS_ClosureReason_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ClosureReason_clone_ptr"))) TS_ClosureReason_clone_ptr(uint32_t arg) {
        LDKClosureReason* arg_conv = (LDKClosureReason*)arg;
-       int64_t ret_val = ClosureReason_clone_ptr(arg_conv);
+       intptr_t ret_val = ClosureReason_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16411,7 +16424,7 @@ uint32_t  __attribute__((export_name("TS_ClosureReason_clone"))) TS_ClosureReaso
        LDKClosureReason* orig_conv = (LDKClosureReason*)orig;
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16419,35 +16432,35 @@ uint32_t  __attribute__((export_name("TS_ClosureReason_counterparty_force_closed
        LDKStr peer_msg_conv = str_ref_to_owned_c(peer_msg);
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_counterparty_force_closed(peer_msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_holder_force_closed"))) TS_ClosureReason_holder_force_closed() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_holder_force_closed();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_cooperative_closure"))) TS_ClosureReason_cooperative_closure() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_cooperative_closure();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_commitment_tx_confirmed"))) TS_ClosureReason_commitment_tx_confirmed() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_commitment_tx_confirmed();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_funding_timed_out"))) TS_ClosureReason_funding_timed_out() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_funding_timed_out();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16455,28 +16468,28 @@ uint32_t  __attribute__((export_name("TS_ClosureReason_processing_error"))) TS_C
        LDKStr err_conv = str_ref_to_owned_c(err);
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_processing_error(err_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_disconnected_peer"))) TS_ClosureReason_disconnected_peer() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_disconnected_peer();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ClosureReason_outdated_channel_manager"))) TS_ClosureReason_outdated_channel_manager() {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_outdated_channel_manager();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_ClosureReason_write"))) TS_ClosureReason_write(uint32_t obj) {
        LDKClosureReason* obj_conv = (LDKClosureReason*)obj;
        LDKCVec_u8Z ret_var = ClosureReason_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -16485,15 +16498,15 @@ int8_tArray  __attribute__((export_name("TS_ClosureReason_write"))) TS_ClosureRe
 uint32_t  __attribute__((export_name("TS_ClosureReason_read"))) TS_ClosureReason_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = ClosureReason_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_Event_free"))) TS_Event_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEvent this_ptr_conv = *(LDKEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -16503,12 +16516,12 @@ void  __attribute__((export_name("TS_Event_free"))) TS_Event_free(uint32_t this_
 static inline uintptr_t Event_clone_ptr(LDKEvent *NONNULL_PTR arg) {
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Event_clone_ptr"))) TS_Event_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Event_clone_ptr"))) TS_Event_clone_ptr(uint32_t arg) {
        LDKEvent* arg_conv = (LDKEvent*)arg;
-       int64_t ret_val = Event_clone_ptr(arg_conv);
+       intptr_t ret_val = Event_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16516,76 +16529,76 @@ uint32_t  __attribute__((export_name("TS_Event_clone"))) TS_Event_clone(uint32_t
        LDKEvent* orig_conv = (LDKEvent*)orig;
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_funding_generation_ready"))) TS_Event_funding_generation_ready(int8_tArray temporary_channel_id, int64_t channel_value_satoshis, int8_tArray output_script, int64_t user_channel_id) {
        LDKThirtyTwoBytes temporary_channel_id_ref;
        CHECK(temporary_channel_id->arr_len == 32);
-       memcpy(temporary_channel_id_ref.data, temporary_channel_id->elems, 32);
+       memcpy(temporary_channel_id_ref.data, temporary_channel_id->elems, 32); FREE(temporary_channel_id);
        LDKCVec_u8Z output_script_ref;
        output_script_ref.datalen = output_script->arr_len;
        output_script_ref.data = MALLOC(output_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(output_script_ref.data, output_script->elems, output_script_ref.datalen);
+       memcpy(output_script_ref.data, output_script->elems, output_script_ref.datalen); FREE(output_script);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_funding_generation_ready(temporary_channel_id_ref, channel_value_satoshis, output_script_ref, user_channel_id);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_received"))) TS_Event_payment_received(int8_tArray payment_hash, int64_t amt, uint32_t purpose) {
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
-       void* purpose_ptr = (void*)(((uint64_t)purpose) & ~1);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
+       void* purpose_ptr = (void*)(((uintptr_t)purpose) & ~1);
        CHECK_ACCESS(purpose_ptr);
        LDKPaymentPurpose purpose_conv = *(LDKPaymentPurpose*)(purpose_ptr);
-       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uint64_t)purpose) & ~1));
+       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uintptr_t)purpose) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_received(payment_hash_ref, amt, purpose_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_sent"))) TS_Event_payment_sent(int8_tArray payment_id, int8_tArray payment_preimage, int8_tArray payment_hash, uint32_t fee_paid_msat) {
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK(payment_preimage->arr_len == 32);
-       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32);
+       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32); FREE(payment_preimage);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
-       void* fee_paid_msat_ptr = (void*)(((uint64_t)fee_paid_msat) & ~1);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
+       void* fee_paid_msat_ptr = (void*)(((uintptr_t)fee_paid_msat) & ~1);
        CHECK_ACCESS(fee_paid_msat_ptr);
        LDKCOption_u64Z fee_paid_msat_conv = *(LDKCOption_u64Z*)(fee_paid_msat_ptr);
-       fee_paid_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)fee_paid_msat) & ~1));
+       fee_paid_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)fee_paid_msat) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_sent(payment_id_ref, payment_preimage_ref, payment_hash_ref, fee_paid_msat_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_path_failed"))) TS_Event_payment_path_failed(int8_tArray payment_id, int8_tArray payment_hash, jboolean rejected_by_dest, uint32_t network_update, jboolean all_paths_failed, uint32_tArray path, uint32_t short_channel_id, uint32_t retry) {
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
-       void* network_update_ptr = (void*)(((uint64_t)network_update) & ~1);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
+       void* network_update_ptr = (void*)(((uintptr_t)network_update) & ~1);
        CHECK_ACCESS(network_update_ptr);
        LDKCOption_NetworkUpdateZ network_update_conv = *(LDKCOption_NetworkUpdateZ*)(network_update_ptr);
-       network_update_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uint64_t)network_update) & ~1));
+       network_update_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uintptr_t)network_update) & ~1));
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = path->arr_len;
        if (path_constr.datalen > 0)
                path_constr.data = MALLOC(path_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
        else
                path_constr.data = NULL;
-       uint32_t* path_vals = path->elems;
+       uint32_t* path_vals = path->elems /* XXX path leaks */;
        for (size_t k = 0; k < path_constr.datalen; k++) {
                uint32_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
@@ -16595,10 +16608,10 @@ uint32_t  __attribute__((export_name("TS_Event_payment_path_failed"))) TS_Event_
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
        }
-       void* short_channel_id_ptr = (void*)(((uint64_t)short_channel_id) & ~1);
+       void* short_channel_id_ptr = (void*)(((uintptr_t)short_channel_id) & ~1);
        CHECK_ACCESS(short_channel_id_ptr);
        LDKCOption_u64Z short_channel_id_conv = *(LDKCOption_u64Z*)(short_channel_id_ptr);
-       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)short_channel_id) & ~1));
+       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id) & ~1));
        LDKRouteParameters retry_conv;
        retry_conv.inner = (void*)(retry & (~1));
        retry_conv.is_owned = (retry & 1) || (retry == 0);
@@ -16606,27 +16619,27 @@ uint32_t  __attribute__((export_name("TS_Event_payment_path_failed"))) TS_Event_
        retry_conv = RouteParameters_clone(&retry_conv);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_path_failed(payment_id_ref, payment_hash_ref, rejected_by_dest, network_update_conv, all_paths_failed, path_constr, short_channel_id_conv, retry_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_failed"))) TS_Event_payment_failed(int8_tArray payment_id, int8_tArray payment_hash) {
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_failed(payment_id_ref, payment_hash_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_pending_htlcs_forwardable"))) TS_Event_pending_htlcs_forwardable(int64_t time_forwardable) {
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_pending_htlcs_forwardable(time_forwardable);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16637,75 +16650,75 @@ uint32_t  __attribute__((export_name("TS_Event_spendable_outputs"))) TS_Event_sp
                outputs_constr.data = MALLOC(outputs_constr.datalen * sizeof(LDKSpendableOutputDescriptor), "LDKCVec_SpendableOutputDescriptorZ Elements");
        else
                outputs_constr.data = NULL;
-       uint32_t* outputs_vals = outputs->elems;
+       uint32_t* outputs_vals = outputs->elems /* XXX outputs leaks */;
        for (size_t b = 0; b < outputs_constr.datalen; b++) {
                uint32_t outputs_conv_27 = outputs_vals[b];
-               void* outputs_conv_27_ptr = (void*)(((uint64_t)outputs_conv_27) & ~1);
+               void* outputs_conv_27_ptr = (void*)(((uintptr_t)outputs_conv_27) & ~1);
                CHECK_ACCESS(outputs_conv_27_ptr);
                LDKSpendableOutputDescriptor outputs_conv_27_conv = *(LDKSpendableOutputDescriptor*)(outputs_conv_27_ptr);
-               outputs_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)outputs_conv_27) & ~1));
+               outputs_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)outputs_conv_27) & ~1));
                outputs_constr.data[b] = outputs_conv_27_conv;
        }
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_spendable_outputs(outputs_constr);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_forwarded"))) TS_Event_payment_forwarded(uint32_t fee_earned_msat, jboolean claim_from_onchain_tx) {
-       void* fee_earned_msat_ptr = (void*)(((uint64_t)fee_earned_msat) & ~1);
+       void* fee_earned_msat_ptr = (void*)(((uintptr_t)fee_earned_msat) & ~1);
        CHECK_ACCESS(fee_earned_msat_ptr);
        LDKCOption_u64Z fee_earned_msat_conv = *(LDKCOption_u64Z*)(fee_earned_msat_ptr);
-       fee_earned_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)fee_earned_msat) & ~1));
+       fee_earned_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)fee_earned_msat) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_forwarded(fee_earned_msat_conv, claim_from_onchain_tx);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_channel_closed"))) TS_Event_channel_closed(int8_tArray channel_id, int64_t user_channel_id, uint32_t reason) {
        LDKThirtyTwoBytes channel_id_ref;
        CHECK(channel_id->arr_len == 32);
-       memcpy(channel_id_ref.data, channel_id->elems, 32);
-       void* reason_ptr = (void*)(((uint64_t)reason) & ~1);
+       memcpy(channel_id_ref.data, channel_id->elems, 32); FREE(channel_id);
+       void* reason_ptr = (void*)(((uintptr_t)reason) & ~1);
        CHECK_ACCESS(reason_ptr);
        LDKClosureReason reason_conv = *(LDKClosureReason*)(reason_ptr);
-       reason_conv = ClosureReason_clone((LDKClosureReason*)(((uint64_t)reason) & ~1));
+       reason_conv = ClosureReason_clone((LDKClosureReason*)(((uintptr_t)reason) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_channel_closed(channel_id_ref, user_channel_id, reason_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_discard_funding"))) TS_Event_discard_funding(int8_tArray channel_id, int8_tArray transaction) {
        LDKThirtyTwoBytes channel_id_ref;
        CHECK(channel_id->arr_len == 32);
-       memcpy(channel_id_ref.data, channel_id->elems, 32);
+       memcpy(channel_id_ref.data, channel_id->elems, 32); FREE(channel_id);
        LDKTransaction transaction_ref;
        transaction_ref.datalen = transaction->arr_len;
        transaction_ref.data = MALLOC(transaction_ref.datalen, "LDKTransaction Bytes");
-       memcpy(transaction_ref.data, transaction->elems, transaction_ref.datalen);
+       memcpy(transaction_ref.data, transaction->elems, transaction_ref.datalen); FREE(transaction);
        transaction_ref.data_is_owned = true;
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_discard_funding(channel_id_ref, transaction_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Event_payment_path_successful"))) TS_Event_payment_path_successful(int8_tArray payment_id, int8_tArray payment_hash, uint32_tArray path) {
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = path->arr_len;
        if (path_constr.datalen > 0)
                path_constr.data = MALLOC(path_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
        else
                path_constr.data = NULL;
-       uint32_t* path_vals = path->elems;
+       uint32_t* path_vals = path->elems /* XXX path leaks */;
        for (size_t k = 0; k < path_constr.datalen; k++) {
                uint32_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
@@ -16717,14 +16730,14 @@ uint32_t  __attribute__((export_name("TS_Event_payment_path_successful"))) TS_Ev
        }
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_path_successful(payment_id_ref, payment_hash_ref, path_constr);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_Event_write"))) TS_Event_write(uint32_t obj) {
        LDKEvent* obj_conv = (LDKEvent*)obj;
        LDKCVec_u8Z ret_var = Event_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -16733,15 +16746,15 @@ int8_tArray  __attribute__((export_name("TS_Event_write"))) TS_Event_write(uint3
 uint32_t  __attribute__((export_name("TS_Event_read"))) TS_Event_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = Event_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_MessageSendEvent_free"))) TS_MessageSendEvent_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMessageSendEvent this_ptr_conv = *(LDKMessageSendEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -16751,12 +16764,12 @@ void  __attribute__((export_name("TS_MessageSendEvent_free"))) TS_MessageSendEve
 static inline uintptr_t MessageSendEvent_clone_ptr(LDKMessageSendEvent *NONNULL_PTR arg) {
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_MessageSendEvent_clone_ptr"))) TS_MessageSendEvent_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_MessageSendEvent_clone_ptr"))) TS_MessageSendEvent_clone_ptr(uint32_t arg) {
        LDKMessageSendEvent* arg_conv = (LDKMessageSendEvent*)arg;
-       int64_t ret_val = MessageSendEvent_clone_ptr(arg_conv);
+       intptr_t ret_val = MessageSendEvent_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -16764,14 +16777,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_clone"))) TS_MessageSe
        LDKMessageSendEvent* orig_conv = (LDKMessageSendEvent*)orig;
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_accept_channel"))) TS_MessageSendEvent_send_accept_channel(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKAcceptChannel msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16779,14 +16792,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_accept_channel"))
        msg_conv = AcceptChannel_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_accept_channel(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_open_channel"))) TS_MessageSendEvent_send_open_channel(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKOpenChannel msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16794,14 +16807,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_open_channel")))
        msg_conv = OpenChannel_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_open_channel(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_created"))) TS_MessageSendEvent_send_funding_created(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKFundingCreated msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16809,14 +16822,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_created")
        msg_conv = FundingCreated_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_funding_created(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_signed"))) TS_MessageSendEvent_send_funding_signed(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKFundingSigned msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16824,14 +16837,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_signed"))
        msg_conv = FundingSigned_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_funding_signed(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_locked"))) TS_MessageSendEvent_send_funding_locked(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKFundingLocked msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16839,14 +16852,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_funding_locked"))
        msg_conv = FundingLocked_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_funding_locked(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_announcement_signatures"))) TS_MessageSendEvent_send_announcement_signatures(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKAnnouncementSignatures msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16854,14 +16867,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_announcement_sign
        msg_conv = AnnouncementSignatures_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_announcement_signatures(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_update_htlcs"))) TS_MessageSendEvent_update_htlcs(int8_tArray node_id, uint32_t updates) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKCommitmentUpdate updates_conv;
        updates_conv.inner = (void*)(updates & (~1));
        updates_conv.is_owned = (updates & 1) || (updates == 0);
@@ -16869,14 +16882,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_update_htlcs"))) TS_Me
        updates_conv = CommitmentUpdate_clone(&updates_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_update_htlcs(node_id_ref, updates_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_revoke_and_ack"))) TS_MessageSendEvent_send_revoke_and_ack(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKRevokeAndACK msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16884,14 +16897,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_revoke_and_ack"))
        msg_conv = RevokeAndACK_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_revoke_and_ack(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_closing_signed"))) TS_MessageSendEvent_send_closing_signed(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKClosingSigned msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16899,14 +16912,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_closing_signed"))
        msg_conv = ClosingSigned_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_closing_signed(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_shutdown"))) TS_MessageSendEvent_send_shutdown(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKShutdown msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16914,14 +16927,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_shutdown"))) TS_M
        msg_conv = Shutdown_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_shutdown(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_reestablish"))) TS_MessageSendEvent_send_channel_reestablish(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKChannelReestablish msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16929,7 +16942,7 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_reestabli
        msg_conv = ChannelReestablish_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_reestablish(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16946,7 +16959,7 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_broadcast_channel_anno
        update_msg_conv = ChannelUpdate_clone(&update_msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_channel_announcement(msg_conv, update_msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16958,7 +16971,7 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_broadcast_node_announc
        msg_conv = NodeAnnouncement_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_node_announcement(msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -16970,14 +16983,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_broadcast_channel_upda
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_channel_update(msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_update"))) TS_MessageSendEvent_send_channel_update(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKChannelUpdate msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -16985,28 +16998,28 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_update"))
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_update(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_handle_error"))) TS_MessageSendEvent_handle_error(int8_tArray node_id, uint32_t action) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
-       void* action_ptr = (void*)(((uint64_t)action) & ~1);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
+       void* action_ptr = (void*)(((uintptr_t)action) & ~1);
        CHECK_ACCESS(action_ptr);
        LDKErrorAction action_conv = *(LDKErrorAction*)(action_ptr);
-       action_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)action) & ~1));
+       action_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)action) & ~1));
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_handle_error(node_id_ref, action_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_range_query"))) TS_MessageSendEvent_send_channel_range_query(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKQueryChannelRange msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -17014,14 +17027,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_channel_range_que
        msg_conv = QueryChannelRange_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_range_query(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_short_ids_query"))) TS_MessageSendEvent_send_short_ids_query(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKQueryShortChannelIds msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -17029,14 +17042,14 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_short_ids_query")
        msg_conv = QueryShortChannelIds_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_short_ids_query(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_reply_channel_range"))) TS_MessageSendEvent_send_reply_channel_range(int8_tArray node_id, uint32_t msg) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKReplyChannelRange msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = (msg & 1) || (msg == 0);
@@ -17044,13 +17057,13 @@ uint32_t  __attribute__((export_name("TS_MessageSendEvent_send_reply_channel_ran
        msg_conv = ReplyChannelRange_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_reply_channel_range(node_id_ref, msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 void  __attribute__((export_name("TS_MessageSendEventsProvider_free"))) TS_MessageSendEventsProvider_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMessageSendEventsProvider this_ptr_conv = *(LDKMessageSendEventsProvider*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -17059,7 +17072,7 @@ void  __attribute__((export_name("TS_MessageSendEventsProvider_free"))) TS_Messa
 
 void  __attribute__((export_name("TS_EventsProvider_free"))) TS_EventsProvider_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEventsProvider this_ptr_conv = *(LDKEventsProvider*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -17068,7 +17081,7 @@ void  __attribute__((export_name("TS_EventsProvider_free"))) TS_EventsProvider_f
 
 void  __attribute__((export_name("TS_EventHandler_free"))) TS_EventHandler_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEventHandler this_ptr_conv = *(LDKEventHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -17077,7 +17090,7 @@ void  __attribute__((export_name("TS_EventHandler_free"))) TS_EventHandler_free(
 
 void  __attribute__((export_name("TS_APIError_free"))) TS_APIError_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKAPIError this_ptr_conv = *(LDKAPIError*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -17087,12 +17100,12 @@ void  __attribute__((export_name("TS_APIError_free"))) TS_APIError_free(uint32_t
 static inline uintptr_t APIError_clone_ptr(LDKAPIError *NONNULL_PTR arg) {
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_APIError_clone_ptr"))) TS_APIError_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_APIError_clone_ptr"))) TS_APIError_clone_ptr(uint32_t arg) {
        LDKAPIError* arg_conv = (LDKAPIError*)arg;
-       int64_t ret_val = APIError_clone_ptr(arg_conv);
+       intptr_t ret_val = APIError_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -17100,7 +17113,7 @@ uint32_t  __attribute__((export_name("TS_APIError_clone"))) TS_APIError_clone(ui
        LDKAPIError* orig_conv = (LDKAPIError*)orig;
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -17108,7 +17121,7 @@ uint32_t  __attribute__((export_name("TS_APIError_apimisuse_error"))) TS_APIErro
        LDKStr err_conv = str_ref_to_owned_c(err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_apimisuse_error(err_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -17116,7 +17129,7 @@ uint32_t  __attribute__((export_name("TS_APIError_fee_rate_too_high"))) TS_APIEr
        LDKStr err_conv = str_ref_to_owned_c(err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_fee_rate_too_high(err_conv, feerate);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -17124,7 +17137,7 @@ uint32_t  __attribute__((export_name("TS_APIError_route_error"))) TS_APIError_ro
        LDKStr err_conv = str_ref_to_owned_c(err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_route_error(err_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -17132,14 +17145,14 @@ uint32_t  __attribute__((export_name("TS_APIError_channel_unavailable"))) TS_API
        LDKStr err_conv = str_ref_to_owned_c(err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_channel_unavailable(err_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_APIError_monitor_update_failed"))) TS_APIError_monitor_update_failed() {
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_monitor_update_failed();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -17151,41 +17164,41 @@ uint32_t  __attribute__((export_name("TS_APIError_incompatible_shutdown_script")
        script_conv = ShutdownScript_clone(&script_conv);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_incompatible_shutdown_script(script_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_sign"))) TS_sign(int8_tArray msg, int8_tArray sk) {
        LDKu8slice msg_ref;
        msg_ref.datalen = msg->arr_len;
-       msg_ref.data = msg->elems;
+       msg_ref.data = msg->elems /* XXX msg leaks */;
        unsigned char sk_arr[32];
        CHECK(sk->arr_len == 32);
-       memcpy(sk_arr, sk->elems, 32);
+       memcpy(sk_arr, sk->elems, 32); FREE(sk);
        unsigned char (*sk_ref)[32] = &sk_arr;
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = sign(msg_ref, sk_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_recover_pk"))) TS_recover_pk(int8_tArray msg, jstring sig) {
        LDKu8slice msg_ref;
        msg_ref.datalen = msg->arr_len;
-       msg_ref.data = msg->elems;
+       msg_ref.data = msg->elems /* XXX msg leaks */;
        LDKStr sig_conv = str_ref_to_owned_c(sig);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = recover_pk(msg_ref, sig_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 jboolean  __attribute__((export_name("TS_verify"))) TS_verify(int8_tArray msg, jstring sig, int8_tArray pk) {
        LDKu8slice msg_ref;
        msg_ref.datalen = msg->arr_len;
-       msg_ref.data = msg->elems;
+       msg_ref.data = msg->elems /* XXX msg leaks */;
        LDKStr sig_conv = str_ref_to_owned_c(sig);
        LDKPublicKey pk_ref;
        CHECK(pk->arr_len == 33);
-       memcpy(pk_ref.compressed_form, pk->elems, 33);
+       memcpy(pk_ref.compressed_form, pk->elems, 33); FREE(pk);
        jboolean ret_val = verify(msg_ref, sig_conv, pk_ref);
        return ret_val;
 }
@@ -17349,22 +17362,22 @@ void  __attribute__((export_name("TS_Record_set_line"))) TS_Record_set_line(uint
 
 static inline uintptr_t Record_clone_ptr(LDKRecord *NONNULL_PTR arg) {
        LDKRecord ret_var = Record_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Record_clone_ptr"))) TS_Record_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Record_clone_ptr"))) TS_Record_clone_ptr(uint32_t arg) {
        LDKRecord arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Record_clone_ptr(&arg_conv);
+       intptr_t ret_val = Record_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -17374,11 +17387,11 @@ uint32_t  __attribute__((export_name("TS_Record_clone"))) TS_Record_clone(uint32
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRecord ret_var = Record_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17387,7 +17400,7 @@ uint32_t  __attribute__((export_name("TS_Record_clone"))) TS_Record_clone(uint32
 
 void  __attribute__((export_name("TS_Logger_free"))) TS_Logger_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKLogger this_ptr_conv = *(LDKLogger*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -17455,11 +17468,11 @@ void  __attribute__((export_name("TS_ChannelHandshakeConfig_set_our_htlc_minimum
 
 uint32_t  __attribute__((export_name("TS_ChannelHandshakeConfig_new"))) TS_ChannelHandshakeConfig_new(int32_t minimum_depth_arg, int16_t our_to_self_delay_arg, int64_t our_htlc_minimum_msat_arg) {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_new(minimum_depth_arg, our_to_self_delay_arg, our_htlc_minimum_msat_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17468,22 +17481,22 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeConfig_new"))) TS_Chann
 
 static inline uintptr_t ChannelHandshakeConfig_clone_ptr(LDKChannelHandshakeConfig *NONNULL_PTR arg) {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelHandshakeConfig_clone_ptr"))) TS_ChannelHandshakeConfig_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelHandshakeConfig_clone_ptr"))) TS_ChannelHandshakeConfig_clone_ptr(uint32_t arg) {
        LDKChannelHandshakeConfig arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelHandshakeConfig_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelHandshakeConfig_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -17493,11 +17506,11 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeConfig_clone"))) TS_Cha
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17506,11 +17519,11 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeConfig_clone"))) TS_Cha
 
 uint32_t  __attribute__((export_name("TS_ChannelHandshakeConfig_default"))) TS_ChannelHandshakeConfig_default() {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_default();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17663,11 +17676,11 @@ void  __attribute__((export_name("TS_ChannelHandshakeLimits_set_their_to_self_de
 
 uint32_t  __attribute__((export_name("TS_ChannelHandshakeLimits_new"))) TS_ChannelHandshakeLimits_new(int64_t min_funding_satoshis_arg, int64_t max_htlc_minimum_msat_arg, int64_t min_max_htlc_value_in_flight_msat_arg, int64_t max_channel_reserve_satoshis_arg, int16_t min_max_accepted_htlcs_arg, int32_t max_minimum_depth_arg, jboolean force_announced_channel_preference_arg, int16_t their_to_self_delay_arg) {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_new(min_funding_satoshis_arg, max_htlc_minimum_msat_arg, min_max_htlc_value_in_flight_msat_arg, max_channel_reserve_satoshis_arg, min_max_accepted_htlcs_arg, max_minimum_depth_arg, force_announced_channel_preference_arg, their_to_self_delay_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17676,22 +17689,22 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeLimits_new"))) TS_Chann
 
 static inline uintptr_t ChannelHandshakeLimits_clone_ptr(LDKChannelHandshakeLimits *NONNULL_PTR arg) {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelHandshakeLimits_clone_ptr"))) TS_ChannelHandshakeLimits_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelHandshakeLimits_clone_ptr"))) TS_ChannelHandshakeLimits_clone_ptr(uint32_t arg) {
        LDKChannelHandshakeLimits arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelHandshakeLimits_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelHandshakeLimits_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -17701,11 +17714,11 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeLimits_clone"))) TS_Cha
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17714,11 +17727,11 @@ uint32_t  __attribute__((export_name("TS_ChannelHandshakeLimits_clone"))) TS_Cha
 
 uint32_t  __attribute__((export_name("TS_ChannelHandshakeLimits_default"))) TS_ChannelHandshakeLimits_default() {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_default();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17854,11 +17867,11 @@ void  __attribute__((export_name("TS_ChannelConfig_set_force_close_avoidance_max
 
 uint32_t  __attribute__((export_name("TS_ChannelConfig_new"))) TS_ChannelConfig_new(int32_t forwarding_fee_proportional_millionths_arg, int32_t forwarding_fee_base_msat_arg, int16_t cltv_expiry_delta_arg, jboolean announced_channel_arg, jboolean commit_upfront_shutdown_pubkey_arg, int64_t max_dust_htlc_exposure_msat_arg, int64_t force_close_avoidance_max_fee_satoshis_arg) {
        LDKChannelConfig ret_var = ChannelConfig_new(forwarding_fee_proportional_millionths_arg, forwarding_fee_base_msat_arg, cltv_expiry_delta_arg, announced_channel_arg, commit_upfront_shutdown_pubkey_arg, max_dust_htlc_exposure_msat_arg, force_close_avoidance_max_fee_satoshis_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17867,22 +17880,22 @@ uint32_t  __attribute__((export_name("TS_ChannelConfig_new"))) TS_ChannelConfig_
 
 static inline uintptr_t ChannelConfig_clone_ptr(LDKChannelConfig *NONNULL_PTR arg) {
        LDKChannelConfig ret_var = ChannelConfig_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelConfig_clone_ptr"))) TS_ChannelConfig_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelConfig_clone_ptr"))) TS_ChannelConfig_clone_ptr(uint32_t arg) {
        LDKChannelConfig arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelConfig_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelConfig_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -17892,11 +17905,11 @@ uint32_t  __attribute__((export_name("TS_ChannelConfig_clone"))) TS_ChannelConfi
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelConfig ret_var = ChannelConfig_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17905,11 +17918,11 @@ uint32_t  __attribute__((export_name("TS_ChannelConfig_clone"))) TS_ChannelConfi
 
 uint32_t  __attribute__((export_name("TS_ChannelConfig_default"))) TS_ChannelConfig_default() {
        LDKChannelConfig ret_var = ChannelConfig_default();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17922,7 +17935,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelConfig_write"))) TS_ChannelCo
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelConfig_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -17931,10 +17944,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelConfig_write"))) TS_ChannelCo
 uint32_t  __attribute__((export_name("TS_ChannelConfig_read"))) TS_ChannelConfig_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = ChannelConfig_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_UserConfig_free"))) TS_UserConfig_free(uint32_t this_obj) {
@@ -17951,11 +17964,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_get_own_channel_config"))) T
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelHandshakeConfig ret_var = UserConfig_get_own_channel_config(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -17981,11 +17994,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_get_peer_channel_config_limi
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelHandshakeLimits ret_var = UserConfig_get_peer_channel_config_limits(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18011,11 +18024,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_get_channel_options"))) TS_U
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelConfig ret_var = UserConfig_get_channel_options(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18086,11 +18099,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_new"))) TS_UserConfig_new(ui
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_options_arg_conv);
        channel_options_arg_conv = ChannelConfig_clone(&channel_options_arg_conv);
        LDKUserConfig ret_var = UserConfig_new(own_channel_config_arg_conv, peer_channel_config_limits_arg_conv, channel_options_arg_conv, accept_forwards_to_priv_channels_arg, accept_inbound_channels_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18099,22 +18112,22 @@ uint32_t  __attribute__((export_name("TS_UserConfig_new"))) TS_UserConfig_new(ui
 
 static inline uintptr_t UserConfig_clone_ptr(LDKUserConfig *NONNULL_PTR arg) {
        LDKUserConfig ret_var = UserConfig_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UserConfig_clone_ptr"))) TS_UserConfig_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UserConfig_clone_ptr"))) TS_UserConfig_clone_ptr(uint32_t arg) {
        LDKUserConfig arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UserConfig_clone_ptr(&arg_conv);
+       intptr_t ret_val = UserConfig_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18124,11 +18137,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_clone"))) TS_UserConfig_clon
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUserConfig ret_var = UserConfig_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18137,11 +18150,11 @@ uint32_t  __attribute__((export_name("TS_UserConfig_clone"))) TS_UserConfig_clon
 
 uint32_t  __attribute__((export_name("TS_UserConfig_default"))) TS_UserConfig_default() {
        LDKUserConfig ret_var = UserConfig_default();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18158,22 +18171,22 @@ void  __attribute__((export_name("TS_BestBlock_free"))) TS_BestBlock_free(uint32
 
 static inline uintptr_t BestBlock_clone_ptr(LDKBestBlock *NONNULL_PTR arg) {
        LDKBestBlock ret_var = BestBlock_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_BestBlock_clone_ptr"))) TS_BestBlock_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_BestBlock_clone_ptr"))) TS_BestBlock_clone_ptr(uint32_t arg) {
        LDKBestBlock arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = BestBlock_clone_ptr(&arg_conv);
+       intptr_t ret_val = BestBlock_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18183,11 +18196,11 @@ uint32_t  __attribute__((export_name("TS_BestBlock_clone"))) TS_BestBlock_clone(
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKBestBlock ret_var = BestBlock_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18197,11 +18210,11 @@ uint32_t  __attribute__((export_name("TS_BestBlock_clone"))) TS_BestBlock_clone(
 uint32_t  __attribute__((export_name("TS_BestBlock_from_genesis"))) TS_BestBlock_from_genesis(uint32_t network) {
        LDKNetwork network_conv = LDKNetwork_from_js(network);
        LDKBestBlock ret_var = BestBlock_from_genesis(network_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18211,13 +18224,13 @@ uint32_t  __attribute__((export_name("TS_BestBlock_from_genesis"))) TS_BestBlock
 uint32_t  __attribute__((export_name("TS_BestBlock_new"))) TS_BestBlock_new(int8_tArray block_hash, int32_t height) {
        LDKThirtyTwoBytes block_hash_ref;
        CHECK(block_hash->arr_len == 32);
-       memcpy(block_hash_ref.data, block_hash->elems, 32);
+       memcpy(block_hash_ref.data, block_hash->elems, 32); FREE(block_hash);
        LDKBestBlock ret_var = BestBlock_new(block_hash_ref, height);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18229,7 +18242,7 @@ int8_tArray  __attribute__((export_name("TS_BestBlock_block_hash"))) TS_BestBloc
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, BestBlock_block_hash(&this_arg_conv).data, 32);
        return ret_arr;
 }
@@ -18261,7 +18274,7 @@ uint32_t  __attribute__((export_name("TS_AccessError_unknown_tx"))) TS_AccessErr
 
 void  __attribute__((export_name("TS_Access_free"))) TS_Access_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKAccess this_ptr_conv = *(LDKAccess*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18270,7 +18283,7 @@ void  __attribute__((export_name("TS_Access_free"))) TS_Access_free(uint32_t thi
 
 void  __attribute__((export_name("TS_Listen_free"))) TS_Listen_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKListen this_ptr_conv = *(LDKListen*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18279,7 +18292,7 @@ void  __attribute__((export_name("TS_Listen_free"))) TS_Listen_free(uint32_t thi
 
 void  __attribute__((export_name("TS_Confirm_free"))) TS_Confirm_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKConfirm this_ptr_conv = *(LDKConfirm*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18304,7 +18317,7 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitorUpdateErr_permanent_failu
 
 void  __attribute__((export_name("TS_Watch_free"))) TS_Watch_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKWatch this_ptr_conv = *(LDKWatch*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18313,7 +18326,7 @@ void  __attribute__((export_name("TS_Watch_free"))) TS_Watch_free(uint32_t this_
 
 void  __attribute__((export_name("TS_Filter_free"))) TS_Filter_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKFilter this_ptr_conv = *(LDKFilter*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18333,7 +18346,7 @@ int8_tArray  __attribute__((export_name("TS_WatchedOutput_get_block_hash"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, WatchedOutput_get_block_hash(&this_ptr_conv).data, 32);
        return ret_arr;
 }
@@ -18345,7 +18358,7 @@ void  __attribute__((export_name("TS_WatchedOutput_set_block_hash"))) TS_Watched
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        WatchedOutput_set_block_hash(&this_ptr_conv, val_ref);
 }
 
@@ -18355,11 +18368,11 @@ uint32_t  __attribute__((export_name("TS_WatchedOutput_get_outpoint"))) TS_Watch
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKOutPoint ret_var = WatchedOutput_get_outpoint(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18385,7 +18398,7 @@ int8_tArray  __attribute__((export_name("TS_WatchedOutput_get_script_pubkey")))
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKu8slice ret_var = WatchedOutput_get_script_pubkey(&this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -18398,14 +18411,14 @@ void  __attribute__((export_name("TS_WatchedOutput_set_script_pubkey"))) TS_Watc
        LDKCVec_u8Z val_ref;
        val_ref.datalen = val->arr_len;
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(val_ref.data, val->elems, val_ref.datalen);
+       memcpy(val_ref.data, val->elems, val_ref.datalen); FREE(val);
        WatchedOutput_set_script_pubkey(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_WatchedOutput_new"))) TS_WatchedOutput_new(int8_tArray block_hash_arg, uint32_t outpoint_arg, int8_tArray script_pubkey_arg) {
        LDKThirtyTwoBytes block_hash_arg_ref;
        CHECK(block_hash_arg->arr_len == 32);
-       memcpy(block_hash_arg_ref.data, block_hash_arg->elems, 32);
+       memcpy(block_hash_arg_ref.data, block_hash_arg->elems, 32); FREE(block_hash_arg);
        LDKOutPoint outpoint_arg_conv;
        outpoint_arg_conv.inner = (void*)(outpoint_arg & (~1));
        outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
@@ -18414,13 +18427,13 @@ uint32_t  __attribute__((export_name("TS_WatchedOutput_new"))) TS_WatchedOutput_
        LDKCVec_u8Z script_pubkey_arg_ref;
        script_pubkey_arg_ref.datalen = script_pubkey_arg->arr_len;
        script_pubkey_arg_ref.data = MALLOC(script_pubkey_arg_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(script_pubkey_arg_ref.data, script_pubkey_arg->elems, script_pubkey_arg_ref.datalen);
+       memcpy(script_pubkey_arg_ref.data, script_pubkey_arg->elems, script_pubkey_arg_ref.datalen); FREE(script_pubkey_arg);
        LDKWatchedOutput ret_var = WatchedOutput_new(block_hash_arg_ref, outpoint_arg_conv, script_pubkey_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18429,22 +18442,22 @@ uint32_t  __attribute__((export_name("TS_WatchedOutput_new"))) TS_WatchedOutput_
 
 static inline uintptr_t WatchedOutput_clone_ptr(LDKWatchedOutput *NONNULL_PTR arg) {
        LDKWatchedOutput ret_var = WatchedOutput_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_WatchedOutput_clone_ptr"))) TS_WatchedOutput_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_WatchedOutput_clone_ptr"))) TS_WatchedOutput_clone_ptr(uint32_t arg) {
        LDKWatchedOutput arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = WatchedOutput_clone_ptr(&arg_conv);
+       intptr_t ret_val = WatchedOutput_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18454,11 +18467,11 @@ uint32_t  __attribute__((export_name("TS_WatchedOutput_clone"))) TS_WatchedOutpu
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKWatchedOutput ret_var = WatchedOutput_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18476,7 +18489,7 @@ int64_t  __attribute__((export_name("TS_WatchedOutput_hash"))) TS_WatchedOutput_
 
 void  __attribute__((export_name("TS_BroadcasterInterface_free"))) TS_BroadcasterInterface_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBroadcasterInterface this_ptr_conv = *(LDKBroadcasterInterface*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18513,7 +18526,7 @@ jboolean  __attribute__((export_name("TS_ConfirmationTarget_eq"))) TS_Confirmati
 
 void  __attribute__((export_name("TS_FeeEstimator_free"))) TS_FeeEstimator_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKFeeEstimator this_ptr_conv = *(LDKFeeEstimator*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18530,22 +18543,22 @@ void  __attribute__((export_name("TS_MonitorUpdateId_free"))) TS_MonitorUpdateId
 
 static inline uintptr_t MonitorUpdateId_clone_ptr(LDKMonitorUpdateId *NONNULL_PTR arg) {
        LDKMonitorUpdateId ret_var = MonitorUpdateId_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_MonitorUpdateId_clone_ptr"))) TS_MonitorUpdateId_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_MonitorUpdateId_clone_ptr"))) TS_MonitorUpdateId_clone_ptr(uint32_t arg) {
        LDKMonitorUpdateId arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = MonitorUpdateId_clone_ptr(&arg_conv);
+       intptr_t ret_val = MonitorUpdateId_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18555,11 +18568,11 @@ uint32_t  __attribute__((export_name("TS_MonitorUpdateId_clone"))) TS_MonitorUpd
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKMonitorUpdateId ret_var = MonitorUpdateId_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18590,7 +18603,7 @@ jboolean  __attribute__((export_name("TS_MonitorUpdateId_eq"))) TS_MonitorUpdate
 
 void  __attribute__((export_name("TS_Persist_free"))) TS_Persist_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPersist this_ptr_conv = *(LDKPersist*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18614,31 +18627,31 @@ void  __attribute__((export_name("TS_ChainMonitor_free"))) TS_ChainMonitor_free(
 }
 
 uint32_t  __attribute__((export_name("TS_ChainMonitor_new"))) TS_ChainMonitor_new(uint32_t chain_source, uint32_t broadcaster, uint32_t logger, uint32_t feeest, uint32_t persister) {
-       void* chain_source_ptr = (void*)(((uint64_t)chain_source) & ~1);
+       void* chain_source_ptr = (void*)(((uintptr_t)chain_source) & ~1);
        CHECK_ACCESS(chain_source_ptr);
        LDKCOption_FilterZ chain_source_conv = *(LDKCOption_FilterZ*)(chain_source_ptr);
        // Warning: we may need a move here but no clone is available for LDKCOption_FilterZ
        if (chain_source_conv.tag == LDKCOption_FilterZ_Some) {
                // Manually implement clone for Java trait instances
        }
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
-       void* feeest_ptr = (void*)(((uint64_t)feeest) & ~1);
+       void* feeest_ptr = (void*)(((uintptr_t)feeest) & ~1);
        CHECK_ACCESS(feeest_ptr);
        LDKFeeEstimator feeest_conv = *(LDKFeeEstimator*)(feeest_ptr);
-       void* persister_ptr = (void*)(((uint64_t)persister) & ~1);
+       void* persister_ptr = (void*)(((uintptr_t)persister) & ~1);
        CHECK_ACCESS(persister_ptr);
        LDKPersist persister_conv = *(LDKPersist*)(persister_ptr);
        LDKChainMonitor ret_var = ChainMonitor_new(chain_source_conv, broadcaster_conv, logger_conv, feeest_conv, persister_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18656,7 +18669,7 @@ uint32_tArray  __attribute__((export_name("TS_ChainMonitor_get_claimable_balance
                ignored_channels_constr.data = MALLOC(ignored_channels_constr.datalen * sizeof(LDKChannelDetails), "LDKCVec_ChannelDetailsZ Elements");
        else
                ignored_channels_constr.data = NULL;
-       uint32_t* ignored_channels_vals = ignored_channels->elems;
+       uint32_t* ignored_channels_vals = ignored_channels->elems /* XXX ignored_channels leaks */;
        for (size_t q = 0; q < ignored_channels_constr.datalen; q++) {
                uint32_t ignored_channels_conv_16 = ignored_channels_vals[q];
                LDKChannelDetails ignored_channels_conv_16_conv;
@@ -18668,12 +18681,12 @@ uint32_tArray  __attribute__((export_name("TS_ChainMonitor_get_claimable_balance
        }
        LDKCVec_BalanceZ ret_var = ChainMonitor_get_claimable_balances(&this_arg_conv, ignored_channels_constr);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
                *ret_conv_9_copy = ret_var.data[j];
-               uint64_t ret_conv_9_ref = (uint64_t)ret_conv_9_copy;
+               uintptr_t ret_conv_9_ref = (uintptr_t)ret_conv_9_copy;
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
        
@@ -18693,7 +18706,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_get_monitor"))) TS_ChainMo
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = ChainMonitor_get_monitor(&this_arg_conv, funding_txo_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_tArray  __attribute__((export_name("TS_ChainMonitor_list_monitors"))) TS_ChainMonitor_list_monitors(uint32_t this_arg) {
@@ -18703,15 +18716,15 @@ uint32_tArray  __attribute__((export_name("TS_ChainMonitor_list_monitors"))) TS_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_OutPointZ ret_var = ChainMonitor_list_monitors(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t k = 0; k < ret_var.datalen; k++) {
                LDKOutPoint ret_conv_10_var = ret_var.data[k];
-               uint64_t ret_conv_10_ref = 0;
-               CHECK((((uint64_t)ret_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_10_ref = 0;
+               CHECK((((uintptr_t)ret_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_10_var);
-               ret_conv_10_ref = (uint64_t)ret_conv_10_var.inner;
+               ret_conv_10_ref = (uintptr_t)ret_conv_10_var.inner;
                if (ret_conv_10_var.is_owned) {
                        ret_conv_10_ref |= 1;
                }
@@ -18739,7 +18752,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_channel_monitor_updated"))
        completed_update_id_conv = MonitorUpdateId_clone(&completed_update_id_conv);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChainMonitor_channel_monitor_updated(&this_arg_conv, funding_txo_conv, completed_update_id_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Listen"))) TS_ChainMonitor_as_Listen(uint32_t this_arg) {
@@ -18749,7 +18762,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Listen"))) TS_ChainMoni
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKListen* ret_ret = MALLOC(sizeof(LDKListen), "LDKListen");
        *ret_ret = ChainMonitor_as_Listen(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Confirm"))) TS_ChainMonitor_as_Confirm(uint32_t this_arg) {
@@ -18759,7 +18772,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Confirm"))) TS_ChainMon
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKConfirm* ret_ret = MALLOC(sizeof(LDKConfirm), "LDKConfirm");
        *ret_ret = ChainMonitor_as_Confirm(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Watch"))) TS_ChainMonitor_as_Watch(uint32_t this_arg) {
@@ -18769,7 +18782,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_as_Watch"))) TS_ChainMonit
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKWatch* ret_ret = MALLOC(sizeof(LDKWatch), "LDKWatch");
        *ret_ret = ChainMonitor_as_Watch(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChainMonitor_as_EventsProvider"))) TS_ChainMonitor_as_EventsProvider(uint32_t this_arg) {
@@ -18779,7 +18792,7 @@ uint32_t  __attribute__((export_name("TS_ChainMonitor_as_EventsProvider"))) TS_C
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKEventsProvider* ret_ret = MALLOC(sizeof(LDKEventsProvider), "LDKEventsProvider");
        *ret_ret = ChainMonitor_as_EventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_ChannelMonitorUpdate_free"))) TS_ChannelMonitorUpdate_free(uint32_t this_obj) {
@@ -18809,22 +18822,22 @@ void  __attribute__((export_name("TS_ChannelMonitorUpdate_set_update_id"))) TS_C
 
 static inline uintptr_t ChannelMonitorUpdate_clone_ptr(LDKChannelMonitorUpdate *NONNULL_PTR arg) {
        LDKChannelMonitorUpdate ret_var = ChannelMonitorUpdate_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelMonitorUpdate_clone_ptr"))) TS_ChannelMonitorUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelMonitorUpdate_clone_ptr"))) TS_ChannelMonitorUpdate_clone_ptr(uint32_t arg) {
        LDKChannelMonitorUpdate arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelMonitorUpdate_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelMonitorUpdate_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18834,11 +18847,11 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitorUpdate_clone"))) TS_Chann
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelMonitorUpdate ret_var = ChannelMonitorUpdate_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -18851,7 +18864,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelMonitorUpdate_write"))) TS_Ch
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelMonitorUpdate_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -18860,15 +18873,15 @@ int8_tArray  __attribute__((export_name("TS_ChannelMonitorUpdate_write"))) TS_Ch
 uint32_t  __attribute__((export_name("TS_ChannelMonitorUpdate_read"))) TS_ChannelMonitorUpdate_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = ChannelMonitorUpdate_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_MonitorEvent_free"))) TS_MonitorEvent_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMonitorEvent this_ptr_conv = *(LDKMonitorEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -18878,12 +18891,12 @@ void  __attribute__((export_name("TS_MonitorEvent_free"))) TS_MonitorEvent_free(
 static inline uintptr_t MonitorEvent_clone_ptr(LDKMonitorEvent *NONNULL_PTR arg) {
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_MonitorEvent_clone_ptr"))) TS_MonitorEvent_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_MonitorEvent_clone_ptr"))) TS_MonitorEvent_clone_ptr(uint32_t arg) {
        LDKMonitorEvent* arg_conv = (LDKMonitorEvent*)arg;
-       int64_t ret_val = MonitorEvent_clone_ptr(arg_conv);
+       intptr_t ret_val = MonitorEvent_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -18891,7 +18904,7 @@ uint32_t  __attribute__((export_name("TS_MonitorEvent_clone"))) TS_MonitorEvent_
        LDKMonitorEvent* orig_conv = (LDKMonitorEvent*)orig;
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -18903,7 +18916,7 @@ uint32_t  __attribute__((export_name("TS_MonitorEvent_htlcevent"))) TS_MonitorEv
        a_conv = HTLCUpdate_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_htlcevent(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -18915,7 +18928,7 @@ uint32_t  __attribute__((export_name("TS_MonitorEvent_commitment_tx_confirmed"))
        a_conv = OutPoint_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_commitment_tx_confirmed(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -18927,7 +18940,7 @@ uint32_t  __attribute__((export_name("TS_MonitorEvent_update_completed"))) TS_Mo
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_update_completed(funding_txo_conv, monitor_update_id);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -18939,14 +18952,14 @@ uint32_t  __attribute__((export_name("TS_MonitorEvent_update_failed"))) TS_Monit
        a_conv = OutPoint_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_update_failed(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_MonitorEvent_write"))) TS_MonitorEvent_write(uint32_t obj) {
        LDKMonitorEvent* obj_conv = (LDKMonitorEvent*)obj;
        LDKCVec_u8Z ret_var = MonitorEvent_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -18955,10 +18968,10 @@ int8_tArray  __attribute__((export_name("TS_MonitorEvent_write"))) TS_MonitorEve
 uint32_t  __attribute__((export_name("TS_MonitorEvent_read"))) TS_MonitorEvent_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = MonitorEvent_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_HTLCUpdate_free"))) TS_HTLCUpdate_free(uint32_t this_obj) {
@@ -18971,22 +18984,22 @@ void  __attribute__((export_name("TS_HTLCUpdate_free"))) TS_HTLCUpdate_free(uint
 
 static inline uintptr_t HTLCUpdate_clone_ptr(LDKHTLCUpdate *NONNULL_PTR arg) {
        LDKHTLCUpdate ret_var = HTLCUpdate_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_HTLCUpdate_clone_ptr"))) TS_HTLCUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_HTLCUpdate_clone_ptr"))) TS_HTLCUpdate_clone_ptr(uint32_t arg) {
        LDKHTLCUpdate arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = HTLCUpdate_clone_ptr(&arg_conv);
+       intptr_t ret_val = HTLCUpdate_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -18996,11 +19009,11 @@ uint32_t  __attribute__((export_name("TS_HTLCUpdate_clone"))) TS_HTLCUpdate_clon
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKHTLCUpdate ret_var = HTLCUpdate_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19013,7 +19026,7 @@ int8_tArray  __attribute__((export_name("TS_HTLCUpdate_write"))) TS_HTLCUpdate_w
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = HTLCUpdate_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -19022,15 +19035,15 @@ int8_tArray  __attribute__((export_name("TS_HTLCUpdate_write"))) TS_HTLCUpdate_w
 uint32_t  __attribute__((export_name("TS_HTLCUpdate_read"))) TS_HTLCUpdate_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = HTLCUpdate_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_Balance_free"))) TS_Balance_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBalance this_ptr_conv = *(LDKBalance*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -19040,12 +19053,12 @@ void  __attribute__((export_name("TS_Balance_free"))) TS_Balance_free(uint32_t t
 static inline uintptr_t Balance_clone_ptr(LDKBalance *NONNULL_PTR arg) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Balance_clone_ptr"))) TS_Balance_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Balance_clone_ptr"))) TS_Balance_clone_ptr(uint32_t arg) {
        LDKBalance* arg_conv = (LDKBalance*)arg;
-       int64_t ret_val = Balance_clone_ptr(arg_conv);
+       intptr_t ret_val = Balance_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -19053,35 +19066,35 @@ uint32_t  __attribute__((export_name("TS_Balance_clone"))) TS_Balance_clone(uint
        LDKBalance* orig_conv = (LDKBalance*)orig;
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Balance_claimable_on_channel_close"))) TS_Balance_claimable_on_channel_close(int64_t claimable_amount_satoshis) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_claimable_on_channel_close(claimable_amount_satoshis);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Balance_claimable_awaiting_confirmations"))) TS_Balance_claimable_awaiting_confirmations(int64_t claimable_amount_satoshis, int32_t confirmation_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_claimable_awaiting_confirmations(claimable_amount_satoshis, confirmation_height);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Balance_contentious_claimable"))) TS_Balance_contentious_claimable(int64_t claimable_amount_satoshis, int32_t timeout_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_contentious_claimable(claimable_amount_satoshis, timeout_height);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_Balance_maybe_claimable_htlcawaiting_timeout"))) TS_Balance_maybe_claimable_htlcawaiting_timeout(int64_t claimable_amount_satoshis, int32_t claimable_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_maybe_claimable_htlcawaiting_timeout(claimable_amount_satoshis, claimable_height);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -19102,22 +19115,22 @@ void  __attribute__((export_name("TS_ChannelMonitor_free"))) TS_ChannelMonitor_f
 
 static inline uintptr_t ChannelMonitor_clone_ptr(LDKChannelMonitor *NONNULL_PTR arg) {
        LDKChannelMonitor ret_var = ChannelMonitor_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelMonitor_clone_ptr"))) TS_ChannelMonitor_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelMonitor_clone_ptr"))) TS_ChannelMonitor_clone_ptr(uint32_t arg) {
        LDKChannelMonitor arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelMonitor_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelMonitor_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -19127,11 +19140,11 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitor_clone"))) TS_ChannelMoni
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelMonitor ret_var = ChannelMonitor_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19144,7 +19157,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelMonitor_write"))) TS_ChannelM
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelMonitor_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -19159,18 +19172,18 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitor_update_monitor"))) TS_Ch
        updates_conv.inner = (void*)(updates & (~1));
        updates_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(updates_conv);
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        if (!(broadcaster & 1)) { CHECK_ACCESS(broadcaster_ptr); }
        LDKBroadcasterInterface* broadcaster_conv = (LDKBroadcasterInterface*)broadcaster_ptr;
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        if (!(fee_estimator & 1)) { CHECK_ACCESS(fee_estimator_ptr); }
        LDKFeeEstimator* fee_estimator_conv = (LDKFeeEstimator*)fee_estimator_ptr;
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        if (!(logger & 1)) { CHECK_ACCESS(logger_ptr); }
        LDKLogger* logger_conv = (LDKLogger*)logger_ptr;
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = ChannelMonitor_update_monitor(&this_arg_conv, &updates_conv, broadcaster_conv, fee_estimator_conv, logger_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int64_t  __attribute__((export_name("TS_ChannelMonitor_get_latest_update_id"))) TS_ChannelMonitor_get_latest_update_id(uint32_t this_arg) {
@@ -19189,7 +19202,7 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitor_get_funding_txo"))) TS_C
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = ChannelMonitor_get_funding_txo(&this_arg_conv);
-       return ((uint64_t)ret_conv);
+       return ((uintptr_t)ret_conv);
 }
 
 uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_outputs_to_watch"))) TS_ChannelMonitor_get_outputs_to_watch(uint32_t this_arg) {
@@ -19199,12 +19212,12 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_outputs_to_watc
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ ret_var = ChannelMonitor_get_outputs_to_watch(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv_40_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
                *ret_conv_40_conv = ret_var.data[o];
-               ret_arr_ptr[o] = ((uint64_t)ret_conv_40_conv);
+               ret_arr_ptr[o] = ((uintptr_t)ret_conv_40_conv);
        }
        
        FREE(ret_var.data);
@@ -19216,7 +19229,7 @@ void  __attribute__((export_name("TS_ChannelMonitor_load_outputs_to_watch"))) TS
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* filter_ptr = (void*)(((uint64_t)filter) & ~1);
+       void* filter_ptr = (void*)(((uintptr_t)filter) & ~1);
        if (!(filter & 1)) { CHECK_ACCESS(filter_ptr); }
        LDKFilter* filter_conv = (LDKFilter*)filter_ptr;
        ChannelMonitor_load_outputs_to_watch(&this_arg_conv, filter_conv);
@@ -19229,12 +19242,12 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_and_clear_pendi
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_MonitorEventZ ret_var = ChannelMonitor_get_and_clear_pending_monitor_events(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
                *ret_conv_14_copy = ret_var.data[o];
-               uint64_t ret_conv_14_ref = (uint64_t)ret_conv_14_copy;
+               uintptr_t ret_conv_14_ref = (uintptr_t)ret_conv_14_copy;
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        
@@ -19249,12 +19262,12 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_and_clear_pendi
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_EventZ ret_var = ChannelMonitor_get_and_clear_pending_events(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t h = 0; h < ret_var.datalen; h++) {
                LDKEvent *ret_conv_7_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
                *ret_conv_7_copy = ret_var.data[h];
-               uint64_t ret_conv_7_ref = (uint64_t)ret_conv_7_copy;
+               uintptr_t ret_conv_7_ref = (uintptr_t)ret_conv_7_copy;
                ret_arr_ptr[h] = ret_conv_7_ref;
        }
        
@@ -19267,16 +19280,16 @@ ptrArray  __attribute__((export_name("TS_ChannelMonitor_get_latest_holder_commit
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        if (!(logger & 1)) { CHECK_ACCESS(logger_ptr); }
        LDKLogger* logger_conv = (LDKLogger*)logger_ptr;
        LDKCVec_TransactionZ ret_var = ChannelMonitor_get_latest_holder_commitment_txn(&this_arg_conv, logger_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
                LDKTransaction ret_conv_12_var = ret_var.data[m];
-               int8_tArray ret_conv_12_arr = init_int8_tArray(ret_conv_12_var.datalen);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(ret_conv_12_var.datalen, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_conv_12_var.data, ret_conv_12_var.datalen);
                Transaction_free(ret_conv_12_var);
                ret_arr_ptr[m] = ret_conv_12_arr;
@@ -19293,7 +19306,7 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_block_connected")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
        LDKCVec_C2Tuple_usizeTransactionZZ txdata_constr;
        txdata_constr.datalen = txdata->arr_len;
@@ -19301,32 +19314,32 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_block_connected")))
                txdata_constr.data = MALLOC(txdata_constr.datalen * sizeof(LDKC2Tuple_usizeTransactionZ), "LDKCVec_C2Tuple_usizeTransactionZZ Elements");
        else
                txdata_constr.data = NULL;
-       uint32_t* txdata_vals = txdata->elems;
+       uint32_t* txdata_vals = txdata->elems /* XXX txdata leaks */;
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                uint32_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_block_connected(&this_arg_conv, header_ref, txdata_constr, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((uint64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = ((uintptr_t)ret_conv_39_conv);
        }
        
        FREE(ret_var.data);
@@ -19340,15 +19353,15 @@ void  __attribute__((export_name("TS_ChannelMonitor_block_disconnected"))) TS_Ch
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        ChannelMonitor_block_disconnected(&this_arg_conv, header_ref, height, broadcaster_conv, fee_estimator_conv, logger_conv);
@@ -19361,7 +19374,7 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_transactions_confir
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
        LDKCVec_C2Tuple_usizeTransactionZZ txdata_constr;
        txdata_constr.datalen = txdata->arr_len;
@@ -19369,32 +19382,32 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_transactions_confir
                txdata_constr.data = MALLOC(txdata_constr.datalen * sizeof(LDKC2Tuple_usizeTransactionZ), "LDKCVec_C2Tuple_usizeTransactionZZ Elements");
        else
                txdata_constr.data = NULL;
-       uint32_t* txdata_vals = txdata->elems;
+       uint32_t* txdata_vals = txdata->elems /* XXX txdata leaks */;
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                uint32_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_transactions_confirmed(&this_arg_conv, header_ref, txdata_constr, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((uint64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = ((uintptr_t)ret_conv_39_conv);
        }
        
        FREE(ret_var.data);
@@ -19408,15 +19421,15 @@ void  __attribute__((export_name("TS_ChannelMonitor_transaction_unconfirmed")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char txid_arr[32];
        CHECK(txid->arr_len == 32);
-       memcpy(txid_arr, txid->elems, 32);
+       memcpy(txid_arr, txid->elems, 32); FREE(txid);
        unsigned char (*txid_ref)[32] = &txid_arr;
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        ChannelMonitor_transaction_unconfirmed(&this_arg_conv, txid_ref, broadcaster_conv, fee_estimator_conv, logger_conv);
@@ -19429,25 +19442,25 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_best_block_updated"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char header_arr[80];
        CHECK(header->arr_len == 80);
-       memcpy(header_arr, header->elems, 80);
+       memcpy(header_arr, header->elems, 80); FREE(header);
        unsigned char (*header_ref)[80] = &header_arr;
-       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_best_block_updated(&this_arg_conv, header_ref, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((uint64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = ((uintptr_t)ret_conv_39_conv);
        }
        
        FREE(ret_var.data);
@@ -19461,10 +19474,10 @@ ptrArray  __attribute__((export_name("TS_ChannelMonitor_get_relevant_txids"))) T
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_TxidZ ret_var = ChannelMonitor_get_relevant_txids(&this_arg_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
-               int8_tArray ret_conv_12_arr = init_int8_tArray(32);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(32, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_var.data[m].data, 32);
                ret_arr_ptr[m] = ret_conv_12_arr;
        }
@@ -19479,11 +19492,11 @@ uint32_t  __attribute__((export_name("TS_ChannelMonitor_current_best_block"))) T
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKBestBlock ret_var = ChannelMonitor_current_best_block(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19497,12 +19510,12 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_claimable_balan
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_BalanceZ ret_var = ChannelMonitor_get_claimable_balances(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
                *ret_conv_9_copy = ret_var.data[j];
-               uint64_t ret_conv_9_ref = (uint64_t)ret_conv_9_copy;
+               uintptr_t ret_conv_9_ref = (uintptr_t)ret_conv_9_copy;
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
        
@@ -19513,13 +19526,13 @@ uint32_tArray  __attribute__((export_name("TS_ChannelMonitor_get_claimable_balan
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelMonitorZ_read"))) TS_C2Tuple_BlockHashChannelMonitorZ_read(int8_tArray ser, uint32_t arg) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
-       void* arg_ptr = (void*)(((uint64_t)arg) & ~1);
+       ser_ref.data = ser->elems /* XXX ser leaks */;
+       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
        if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
        LDKKeysInterface* arg_conv = (LDKKeysInterface*)arg_ptr;
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_read(ser_ref, arg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_OutPoint_free"))) TS_OutPoint_free(uint32_t this_obj) {
@@ -19535,7 +19548,7 @@ int8_tArray  __attribute__((export_name("TS_OutPoint_get_txid"))) TS_OutPoint_ge
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *OutPoint_get_txid(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -19547,7 +19560,7 @@ void  __attribute__((export_name("TS_OutPoint_set_txid"))) TS_OutPoint_set_txid(
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        OutPoint_set_txid(&this_ptr_conv, val_ref);
 }
 
@@ -19571,13 +19584,13 @@ void  __attribute__((export_name("TS_OutPoint_set_index"))) TS_OutPoint_set_inde
 uint32_t  __attribute__((export_name("TS_OutPoint_new"))) TS_OutPoint_new(int8_tArray txid_arg, int16_t index_arg) {
        LDKThirtyTwoBytes txid_arg_ref;
        CHECK(txid_arg->arr_len == 32);
-       memcpy(txid_arg_ref.data, txid_arg->elems, 32);
+       memcpy(txid_arg_ref.data, txid_arg->elems, 32); FREE(txid_arg);
        LDKOutPoint ret_var = OutPoint_new(txid_arg_ref, index_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19586,22 +19599,22 @@ uint32_t  __attribute__((export_name("TS_OutPoint_new"))) TS_OutPoint_new(int8_t
 
 static inline uintptr_t OutPoint_clone_ptr(LDKOutPoint *NONNULL_PTR arg) {
        LDKOutPoint ret_var = OutPoint_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_OutPoint_clone_ptr"))) TS_OutPoint_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_OutPoint_clone_ptr"))) TS_OutPoint_clone_ptr(uint32_t arg) {
        LDKOutPoint arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = OutPoint_clone_ptr(&arg_conv);
+       intptr_t ret_val = OutPoint_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -19611,11 +19624,11 @@ uint32_t  __attribute__((export_name("TS_OutPoint_clone"))) TS_OutPoint_clone(ui
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKOutPoint ret_var = OutPoint_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19649,7 +19662,7 @@ int8_tArray  __attribute__((export_name("TS_OutPoint_to_channel_id"))) TS_OutPoi
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, OutPoint_to_channel_id(&this_arg_conv).data, 32);
        return ret_arr;
 }
@@ -19660,7 +19673,7 @@ int8_tArray  __attribute__((export_name("TS_OutPoint_write"))) TS_OutPoint_write
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = OutPoint_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -19669,10 +19682,10 @@ int8_tArray  __attribute__((export_name("TS_OutPoint_write"))) TS_OutPoint_write
 uint32_t  __attribute__((export_name("TS_OutPoint_read"))) TS_OutPoint_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = OutPoint_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_free"))) TS_DelayedPaymentOutputDescriptor_free(uint32_t this_obj) {
@@ -19689,11 +19702,11 @@ uint32_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_get_outp
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKOutPoint ret_var = DelayedPaymentOutputDescriptor_get_outpoint(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19718,7 +19731,7 @@ int8_tArray  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_get_p
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, DelayedPaymentOutputDescriptor_get_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -19730,7 +19743,7 @@ void  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_set_per_comm
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        DelayedPaymentOutputDescriptor_set_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
@@ -19756,10 +19769,10 @@ void  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_set_output")
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
-       val_conv = TxOut_clone((LDKTxOut*)(((uint64_t)val) & ~1));
+       val_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)val) & ~1));
        DelayedPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
 
@@ -19768,7 +19781,7 @@ int8_tArray  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_get_r
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, DelayedPaymentOutputDescriptor_get_revocation_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -19780,7 +19793,7 @@ void  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_set_revocati
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        DelayedPaymentOutputDescriptor_set_revocation_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -19789,7 +19802,7 @@ int8_tArray  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_get_c
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *DelayedPaymentOutputDescriptor_get_channel_keys_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -19801,7 +19814,7 @@ void  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_set_channel_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        DelayedPaymentOutputDescriptor_set_channel_keys_id(&this_ptr_conv, val_ref);
 }
 
@@ -19830,23 +19843,23 @@ uint32_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_new")))
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
        LDKPublicKey per_commitment_point_arg_ref;
        CHECK(per_commitment_point_arg->arr_len == 33);
-       memcpy(per_commitment_point_arg_ref.compressed_form, per_commitment_point_arg->elems, 33);
-       void* output_arg_ptr = (void*)(((uint64_t)output_arg) & ~1);
+       memcpy(per_commitment_point_arg_ref.compressed_form, per_commitment_point_arg->elems, 33); FREE(per_commitment_point_arg);
+       void* output_arg_ptr = (void*)(((uintptr_t)output_arg) & ~1);
        CHECK_ACCESS(output_arg_ptr);
        LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
-       output_arg_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output_arg) & ~1));
+       output_arg_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output_arg) & ~1));
        LDKPublicKey revocation_pubkey_arg_ref;
        CHECK(revocation_pubkey_arg->arr_len == 33);
-       memcpy(revocation_pubkey_arg_ref.compressed_form, revocation_pubkey_arg->elems, 33);
+       memcpy(revocation_pubkey_arg_ref.compressed_form, revocation_pubkey_arg->elems, 33); FREE(revocation_pubkey_arg);
        LDKThirtyTwoBytes channel_keys_id_arg_ref;
        CHECK(channel_keys_id_arg->arr_len == 32);
-       memcpy(channel_keys_id_arg_ref.data, channel_keys_id_arg->elems, 32);
+       memcpy(channel_keys_id_arg_ref.data, channel_keys_id_arg->elems, 32); FREE(channel_keys_id_arg);
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_new(outpoint_arg_conv, per_commitment_point_arg_ref, to_self_delay_arg, output_arg_conv, revocation_pubkey_arg_ref, channel_keys_id_arg_ref, channel_value_satoshis_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19855,22 +19868,22 @@ uint32_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_new")))
 
 static inline uintptr_t DelayedPaymentOutputDescriptor_clone_ptr(LDKDelayedPaymentOutputDescriptor *NONNULL_PTR arg) {
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_clone_ptr"))) TS_DelayedPaymentOutputDescriptor_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_clone_ptr"))) TS_DelayedPaymentOutputDescriptor_clone_ptr(uint32_t arg) {
        LDKDelayedPaymentOutputDescriptor arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = DelayedPaymentOutputDescriptor_clone_ptr(&arg_conv);
+       intptr_t ret_val = DelayedPaymentOutputDescriptor_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -19880,11 +19893,11 @@ uint32_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_clone"))
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19897,7 +19910,7 @@ int8_tArray  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_write
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = DelayedPaymentOutputDescriptor_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -19906,10 +19919,10 @@ int8_tArray  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_write
 uint32_t  __attribute__((export_name("TS_DelayedPaymentOutputDescriptor_read"))) TS_DelayedPaymentOutputDescriptor_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = DelayedPaymentOutputDescriptor_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_free"))) TS_StaticPaymentOutputDescriptor_free(uint32_t this_obj) {
@@ -19926,11 +19939,11 @@ uint32_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_get_outpo
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKOutPoint ret_var = StaticPaymentOutputDescriptor_get_outpoint(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -19955,10 +19968,10 @@ void  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_set_output"))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
-       val_conv = TxOut_clone((LDKTxOut*)(((uint64_t)val) & ~1));
+       val_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)val) & ~1));
        StaticPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
 
@@ -19967,7 +19980,7 @@ int8_tArray  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_get_ch
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *StaticPaymentOutputDescriptor_get_channel_keys_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -19979,7 +19992,7 @@ void  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_set_channel_k
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        StaticPaymentOutputDescriptor_set_channel_keys_id(&this_ptr_conv, val_ref);
 }
 
@@ -20006,19 +20019,19 @@ uint32_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_new"))) T
        outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_arg_conv);
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
-       void* output_arg_ptr = (void*)(((uint64_t)output_arg) & ~1);
+       void* output_arg_ptr = (void*)(((uintptr_t)output_arg) & ~1);
        CHECK_ACCESS(output_arg_ptr);
        LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
-       output_arg_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output_arg) & ~1));
+       output_arg_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output_arg) & ~1));
        LDKThirtyTwoBytes channel_keys_id_arg_ref;
        CHECK(channel_keys_id_arg->arr_len == 32);
-       memcpy(channel_keys_id_arg_ref.data, channel_keys_id_arg->elems, 32);
+       memcpy(channel_keys_id_arg_ref.data, channel_keys_id_arg->elems, 32); FREE(channel_keys_id_arg);
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_new(outpoint_arg_conv, output_arg_conv, channel_keys_id_arg_ref, channel_value_satoshis_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20027,22 +20040,22 @@ uint32_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_new"))) T
 
 static inline uintptr_t StaticPaymentOutputDescriptor_clone_ptr(LDKStaticPaymentOutputDescriptor *NONNULL_PTR arg) {
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_clone_ptr"))) TS_StaticPaymentOutputDescriptor_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_clone_ptr"))) TS_StaticPaymentOutputDescriptor_clone_ptr(uint32_t arg) {
        LDKStaticPaymentOutputDescriptor arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = StaticPaymentOutputDescriptor_clone_ptr(&arg_conv);
+       intptr_t ret_val = StaticPaymentOutputDescriptor_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -20052,11 +20065,11 @@ uint32_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_clone")))
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20069,7 +20082,7 @@ int8_tArray  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_write"
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = StaticPaymentOutputDescriptor_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -20078,15 +20091,15 @@ int8_tArray  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_write"
 uint32_t  __attribute__((export_name("TS_StaticPaymentOutputDescriptor_read"))) TS_StaticPaymentOutputDescriptor_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = StaticPaymentOutputDescriptor_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_SpendableOutputDescriptor_free"))) TS_SpendableOutputDescriptor_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSpendableOutputDescriptor this_ptr_conv = *(LDKSpendableOutputDescriptor*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -20096,12 +20109,12 @@ void  __attribute__((export_name("TS_SpendableOutputDescriptor_free"))) TS_Spend
 static inline uintptr_t SpendableOutputDescriptor_clone_ptr(LDKSpendableOutputDescriptor *NONNULL_PTR arg) {
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_SpendableOutputDescriptor_clone_ptr"))) TS_SpendableOutputDescriptor_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_SpendableOutputDescriptor_clone_ptr"))) TS_SpendableOutputDescriptor_clone_ptr(uint32_t arg) {
        LDKSpendableOutputDescriptor* arg_conv = (LDKSpendableOutputDescriptor*)arg;
-       int64_t ret_val = SpendableOutputDescriptor_clone_ptr(arg_conv);
+       intptr_t ret_val = SpendableOutputDescriptor_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -20109,7 +20122,7 @@ uint32_t  __attribute__((export_name("TS_SpendableOutputDescriptor_clone"))) TS_
        LDKSpendableOutputDescriptor* orig_conv = (LDKSpendableOutputDescriptor*)orig;
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -20119,13 +20132,13 @@ uint32_t  __attribute__((export_name("TS_SpendableOutputDescriptor_static_output
        outpoint_conv.is_owned = (outpoint & 1) || (outpoint == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_conv);
        outpoint_conv = OutPoint_clone(&outpoint_conv);
-       void* output_ptr = (void*)(((uint64_t)output) & ~1);
+       void* output_ptr = (void*)(((uintptr_t)output) & ~1);
        CHECK_ACCESS(output_ptr);
        LDKTxOut output_conv = *(LDKTxOut*)(output_ptr);
-       output_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output) & ~1));
+       output_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output) & ~1));
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_static_output(outpoint_conv, output_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -20137,7 +20150,7 @@ uint32_t  __attribute__((export_name("TS_SpendableOutputDescriptor_delayed_payme
        a_conv = DelayedPaymentOutputDescriptor_clone(&a_conv);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_delayed_payment_output(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -20149,14 +20162,14 @@ uint32_t  __attribute__((export_name("TS_SpendableOutputDescriptor_static_paymen
        a_conv = StaticPaymentOutputDescriptor_clone(&a_conv);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_static_payment_output(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_SpendableOutputDescriptor_write"))) TS_SpendableOutputDescriptor_write(uint32_t obj) {
        LDKSpendableOutputDescriptor* obj_conv = (LDKSpendableOutputDescriptor*)obj;
        LDKCVec_u8Z ret_var = SpendableOutputDescriptor_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -20165,15 +20178,15 @@ int8_tArray  __attribute__((export_name("TS_SpendableOutputDescriptor_write")))
 uint32_t  __attribute__((export_name("TS_SpendableOutputDescriptor_read"))) TS_SpendableOutputDescriptor_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = SpendableOutputDescriptor_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_BaseSign_free"))) TS_BaseSign_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBaseSign this_ptr_conv = *(LDKBaseSign*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -20183,28 +20196,28 @@ void  __attribute__((export_name("TS_BaseSign_free"))) TS_BaseSign_free(uint32_t
 static inline uintptr_t Sign_clone_ptr(LDKSign *NONNULL_PTR arg) {
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = Sign_clone(arg);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
-int64_t  __attribute__((export_name("TS_Sign_clone_ptr"))) TS_Sign_clone_ptr(uint32_t arg) {
-       void* arg_ptr = (void*)(((uint64_t)arg) & ~1);
+intptr_t  __attribute__((export_name("TS_Sign_clone_ptr"))) TS_Sign_clone_ptr(uint32_t arg) {
+       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
        if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
        LDKSign* arg_conv = (LDKSign*)arg_ptr;
-       int64_t ret_val = Sign_clone_ptr(arg_conv);
+       intptr_t ret_val = Sign_clone_ptr(arg_conv);
        return ret_val;
 }
 
 uint32_t  __attribute__((export_name("TS_Sign_clone"))) TS_Sign_clone(uint32_t orig) {
-       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
        if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
        LDKSign* orig_conv = (LDKSign*)orig_ptr;
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = Sign_clone(orig_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_Sign_free"))) TS_Sign_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSign this_ptr_conv = *(LDKSign*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -20213,7 +20226,7 @@ void  __attribute__((export_name("TS_Sign_free"))) TS_Sign_free(uint32_t this_pt
 
 void  __attribute__((export_name("TS_KeysInterface_free"))) TS_KeysInterface_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKKeysInterface this_ptr_conv = *(LDKKeysInterface*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -20233,7 +20246,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_funding_key"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_funding_key(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20245,7 +20258,7 @@ void  __attribute__((export_name("TS_InMemorySigner_set_funding_key"))) TS_InMem
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSecretKey val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.bytes, val->elems, 32);
+       memcpy(val_ref.bytes, val->elems, 32); FREE(val);
        InMemorySigner_set_funding_key(&this_ptr_conv, val_ref);
 }
 
@@ -20254,7 +20267,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_revocation_base_k
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_revocation_base_key(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20266,7 +20279,7 @@ void  __attribute__((export_name("TS_InMemorySigner_set_revocation_base_key")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSecretKey val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.bytes, val->elems, 32);
+       memcpy(val_ref.bytes, val->elems, 32); FREE(val);
        InMemorySigner_set_revocation_base_key(&this_ptr_conv, val_ref);
 }
 
@@ -20275,7 +20288,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_payment_key"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_payment_key(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20287,7 +20300,7 @@ void  __attribute__((export_name("TS_InMemorySigner_set_payment_key"))) TS_InMem
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSecretKey val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.bytes, val->elems, 32);
+       memcpy(val_ref.bytes, val->elems, 32); FREE(val);
        InMemorySigner_set_payment_key(&this_ptr_conv, val_ref);
 }
 
@@ -20296,7 +20309,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_delayed_payment_b
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_delayed_payment_base_key(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20308,7 +20321,7 @@ void  __attribute__((export_name("TS_InMemorySigner_set_delayed_payment_base_key
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSecretKey val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.bytes, val->elems, 32);
+       memcpy(val_ref.bytes, val->elems, 32); FREE(val);
        InMemorySigner_set_delayed_payment_base_key(&this_ptr_conv, val_ref);
 }
 
@@ -20317,7 +20330,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_htlc_base_key")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_htlc_base_key(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20329,7 +20342,7 @@ void  __attribute__((export_name("TS_InMemorySigner_set_htlc_base_key"))) TS_InM
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSecretKey val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.bytes, val->elems, 32);
+       memcpy(val_ref.bytes, val->elems, 32); FREE(val);
        InMemorySigner_set_htlc_base_key(&this_ptr_conv, val_ref);
 }
 
@@ -20338,7 +20351,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_get_commitment_seed")
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *InMemorySigner_get_commitment_seed(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -20350,28 +20363,28 @@ void  __attribute__((export_name("TS_InMemorySigner_set_commitment_seed"))) TS_I
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        InMemorySigner_set_commitment_seed(&this_ptr_conv, val_ref);
 }
 
 static inline uintptr_t InMemorySigner_clone_ptr(LDKInMemorySigner *NONNULL_PTR arg) {
        LDKInMemorySigner ret_var = InMemorySigner_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_InMemorySigner_clone_ptr"))) TS_InMemorySigner_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_InMemorySigner_clone_ptr"))) TS_InMemorySigner_clone_ptr(uint32_t arg) {
        LDKInMemorySigner arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = InMemorySigner_clone_ptr(&arg_conv);
+       intptr_t ret_val = InMemorySigner_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -20381,11 +20394,11 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_clone"))) TS_InMemorySig
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKInMemorySigner ret_var = InMemorySigner_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20395,31 +20408,31 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_clone"))) TS_InMemorySig
 uint32_t  __attribute__((export_name("TS_InMemorySigner_new"))) TS_InMemorySigner_new(int8_tArray funding_key, int8_tArray revocation_base_key, int8_tArray payment_key, int8_tArray delayed_payment_base_key, int8_tArray htlc_base_key, int8_tArray commitment_seed, int64_t channel_value_satoshis, int8_tArray channel_keys_id) {
        LDKSecretKey funding_key_ref;
        CHECK(funding_key->arr_len == 32);
-       memcpy(funding_key_ref.bytes, funding_key->elems, 32);
+       memcpy(funding_key_ref.bytes, funding_key->elems, 32); FREE(funding_key);
        LDKSecretKey revocation_base_key_ref;
        CHECK(revocation_base_key->arr_len == 32);
-       memcpy(revocation_base_key_ref.bytes, revocation_base_key->elems, 32);
+       memcpy(revocation_base_key_ref.bytes, revocation_base_key->elems, 32); FREE(revocation_base_key);
        LDKSecretKey payment_key_ref;
        CHECK(payment_key->arr_len == 32);
-       memcpy(payment_key_ref.bytes, payment_key->elems, 32);
+       memcpy(payment_key_ref.bytes, payment_key->elems, 32); FREE(payment_key);
        LDKSecretKey delayed_payment_base_key_ref;
        CHECK(delayed_payment_base_key->arr_len == 32);
-       memcpy(delayed_payment_base_key_ref.bytes, delayed_payment_base_key->elems, 32);
+       memcpy(delayed_payment_base_key_ref.bytes, delayed_payment_base_key->elems, 32); FREE(delayed_payment_base_key);
        LDKSecretKey htlc_base_key_ref;
        CHECK(htlc_base_key->arr_len == 32);
-       memcpy(htlc_base_key_ref.bytes, htlc_base_key->elems, 32);
+       memcpy(htlc_base_key_ref.bytes, htlc_base_key->elems, 32); FREE(htlc_base_key);
        LDKThirtyTwoBytes commitment_seed_ref;
        CHECK(commitment_seed->arr_len == 32);
-       memcpy(commitment_seed_ref.data, commitment_seed->elems, 32);
+       memcpy(commitment_seed_ref.data, commitment_seed->elems, 32); FREE(commitment_seed);
        LDKThirtyTwoBytes channel_keys_id_ref;
        CHECK(channel_keys_id->arr_len == 32);
-       memcpy(channel_keys_id_ref.data, channel_keys_id->elems, 32);
+       memcpy(channel_keys_id_ref.data, channel_keys_id->elems, 32); FREE(channel_keys_id);
        LDKInMemorySigner ret_var = InMemorySigner_new(funding_key_ref, revocation_base_key_ref, payment_key_ref, delayed_payment_base_key_ref, htlc_base_key_ref, commitment_seed_ref, channel_value_satoshis, channel_keys_id_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20432,11 +20445,11 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_counterparty_pubkeys")))
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelPublicKeys ret_var = InMemorySigner_counterparty_pubkeys(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20476,11 +20489,11 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_funding_outpoint"))) TS_
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKOutPoint ret_var = InMemorySigner_funding_outpoint(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20493,11 +20506,11 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_get_channel_parameters")
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelTransactionParameters ret_var = InMemorySigner_get_channel_parameters(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20513,7 +20526,7 @@ jboolean  __attribute__((export_name("TS_InMemorySigner_opt_anchors"))) TS_InMem
        return ret_val;
 }
 
-uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_counterparty_payment_input"))) TS_InMemorySigner_sign_counterparty_payment_input(uint32_t this_arg, int8_tArray spend_tx, int64_t input_idx, uint32_t descriptor) {
+uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_counterparty_payment_input"))) TS_InMemorySigner_sign_counterparty_payment_input(uint32_t this_arg, int8_tArray spend_tx, intptr_t input_idx, uint32_t descriptor) {
        LDKInMemorySigner this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
@@ -20521,7 +20534,7 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_counterparty_paymen
        LDKTransaction spend_tx_ref;
        spend_tx_ref.datalen = spend_tx->arr_len;
        spend_tx_ref.data = MALLOC(spend_tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(spend_tx_ref.data, spend_tx->elems, spend_tx_ref.datalen);
+       memcpy(spend_tx_ref.data, spend_tx->elems, spend_tx_ref.datalen); FREE(spend_tx);
        spend_tx_ref.data_is_owned = true;
        LDKStaticPaymentOutputDescriptor descriptor_conv;
        descriptor_conv.inner = (void*)(descriptor & (~1));
@@ -20529,10 +20542,10 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_counterparty_paymen
        CHECK_INNER_FIELD_ACCESS_OR_NULL(descriptor_conv);
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = InMemorySigner_sign_counterparty_payment_input(&this_arg_conv, spend_tx_ref, input_idx, &descriptor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
-uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_dynamic_p2wsh_input"))) TS_InMemorySigner_sign_dynamic_p2wsh_input(uint32_t this_arg, int8_tArray spend_tx, int64_t input_idx, uint32_t descriptor) {
+uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_dynamic_p2wsh_input"))) TS_InMemorySigner_sign_dynamic_p2wsh_input(uint32_t this_arg, int8_tArray spend_tx, intptr_t input_idx, uint32_t descriptor) {
        LDKInMemorySigner this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
@@ -20540,7 +20553,7 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_dynamic_p2wsh_input
        LDKTransaction spend_tx_ref;
        spend_tx_ref.datalen = spend_tx->arr_len;
        spend_tx_ref.data = MALLOC(spend_tx_ref.datalen, "LDKTransaction Bytes");
-       memcpy(spend_tx_ref.data, spend_tx->elems, spend_tx_ref.datalen);
+       memcpy(spend_tx_ref.data, spend_tx->elems, spend_tx_ref.datalen); FREE(spend_tx);
        spend_tx_ref.data_is_owned = true;
        LDKDelayedPaymentOutputDescriptor descriptor_conv;
        descriptor_conv.inner = (void*)(descriptor & (~1));
@@ -20548,7 +20561,7 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_sign_dynamic_p2wsh_input
        CHECK_INNER_FIELD_ACCESS_OR_NULL(descriptor_conv);
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = InMemorySigner_sign_dynamic_p2wsh_input(&this_arg_conv, spend_tx_ref, input_idx, &descriptor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_InMemorySigner_as_BaseSign"))) TS_InMemorySigner_as_BaseSign(uint32_t this_arg) {
@@ -20558,7 +20571,7 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_as_BaseSign"))) TS_InMem
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKBaseSign* ret_ret = MALLOC(sizeof(LDKBaseSign), "LDKBaseSign");
        *ret_ret = InMemorySigner_as_BaseSign(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_InMemorySigner_as_Sign"))) TS_InMemorySigner_as_Sign(uint32_t this_arg) {
@@ -20568,7 +20581,7 @@ uint32_t  __attribute__((export_name("TS_InMemorySigner_as_Sign"))) TS_InMemoryS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = InMemorySigner_as_Sign(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 int8_tArray  __attribute__((export_name("TS_InMemorySigner_write"))) TS_InMemorySigner_write(uint32_t obj) {
@@ -20577,7 +20590,7 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_write"))) TS_InMemory
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = InMemorySigner_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -20586,10 +20599,10 @@ int8_tArray  __attribute__((export_name("TS_InMemorySigner_write"))) TS_InMemory
 uint32_t  __attribute__((export_name("TS_InMemorySigner_read"))) TS_InMemorySigner_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = InMemorySigner_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_KeysManager_free"))) TS_KeysManager_free(uint32_t this_obj) {
@@ -20603,14 +20616,14 @@ void  __attribute__((export_name("TS_KeysManager_free"))) TS_KeysManager_free(ui
 uint32_t  __attribute__((export_name("TS_KeysManager_new"))) TS_KeysManager_new(int8_tArray seed, int64_t starting_time_secs, int32_t starting_time_nanos) {
        unsigned char seed_arr[32];
        CHECK(seed->arr_len == 32);
-       memcpy(seed_arr, seed->elems, 32);
+       memcpy(seed_arr, seed->elems, 32); FREE(seed);
        unsigned char (*seed_ref)[32] = &seed_arr;
        LDKKeysManager ret_var = KeysManager_new(seed_ref, starting_time_secs, starting_time_nanos);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20624,14 +20637,14 @@ uint32_t  __attribute__((export_name("TS_KeysManager_derive_channel_keys"))) TS_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char params_arr[32];
        CHECK(params->arr_len == 32);
-       memcpy(params_arr, params->elems, 32);
+       memcpy(params_arr, params->elems, 32); FREE(params);
        unsigned char (*params_ref)[32] = &params_arr;
        LDKInMemorySigner ret_var = KeysManager_derive_channel_keys(&this_arg_conv, channel_value_satoshis, params_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20649,13 +20662,13 @@ uint32_t  __attribute__((export_name("TS_KeysManager_spend_spendable_outputs")))
                descriptors_constr.data = MALLOC(descriptors_constr.datalen * sizeof(LDKSpendableOutputDescriptor), "LDKCVec_SpendableOutputDescriptorZ Elements");
        else
                descriptors_constr.data = NULL;
-       uint32_t* descriptors_vals = descriptors->elems;
+       uint32_t* descriptors_vals = descriptors->elems /* XXX descriptors leaks */;
        for (size_t b = 0; b < descriptors_constr.datalen; b++) {
                uint32_t descriptors_conv_27 = descriptors_vals[b];
-               void* descriptors_conv_27_ptr = (void*)(((uint64_t)descriptors_conv_27) & ~1);
+               void* descriptors_conv_27_ptr = (void*)(((uintptr_t)descriptors_conv_27) & ~1);
                CHECK_ACCESS(descriptors_conv_27_ptr);
                LDKSpendableOutputDescriptor descriptors_conv_27_conv = *(LDKSpendableOutputDescriptor*)(descriptors_conv_27_ptr);
-               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)descriptors_conv_27) & ~1));
+               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)descriptors_conv_27) & ~1));
                descriptors_constr.data[b] = descriptors_conv_27_conv;
        }
        LDKCVec_TxOutZ outputs_constr;
@@ -20664,22 +20677,22 @@ uint32_t  __attribute__((export_name("TS_KeysManager_spend_spendable_outputs")))
                outputs_constr.data = MALLOC(outputs_constr.datalen * sizeof(LDKTxOut), "LDKCVec_TxOutZ Elements");
        else
                outputs_constr.data = NULL;
-       uint32_t* outputs_vals = outputs->elems;
+       uint32_t* outputs_vals = outputs->elems /* XXX outputs leaks */;
        for (size_t h = 0; h < outputs_constr.datalen; h++) {
                uint32_t outputs_conv_7 = outputs_vals[h];
-               void* outputs_conv_7_ptr = (void*)(((uint64_t)outputs_conv_7) & ~1);
+               void* outputs_conv_7_ptr = (void*)(((uintptr_t)outputs_conv_7) & ~1);
                CHECK_ACCESS(outputs_conv_7_ptr);
                LDKTxOut outputs_conv_7_conv = *(LDKTxOut*)(outputs_conv_7_ptr);
-               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)(((uint64_t)outputs_conv_7) & ~1));
+               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)outputs_conv_7) & ~1));
                outputs_constr.data[h] = outputs_conv_7_conv;
        }
        LDKCVec_u8Z change_destination_script_ref;
        change_destination_script_ref.datalen = change_destination_script->arr_len;
        change_destination_script_ref.data = MALLOC(change_destination_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(change_destination_script_ref.data, change_destination_script->elems, change_destination_script_ref.datalen);
+       memcpy(change_destination_script_ref.data, change_destination_script->elems, change_destination_script_ref.datalen); FREE(change_destination_script);
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = KeysManager_spend_spendable_outputs(&this_arg_conv, descriptors_constr, outputs_constr, change_destination_script_ref, feerate_sat_per_1000_weight);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_KeysManager_as_KeysInterface"))) TS_KeysManager_as_KeysInterface(uint32_t this_arg) {
@@ -20689,7 +20702,7 @@ uint32_t  __attribute__((export_name("TS_KeysManager_as_KeysInterface"))) TS_Key
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKKeysInterface* ret_ret = MALLOC(sizeof(LDKKeysInterface), "LDKKeysInterface");
        *ret_ret = KeysManager_as_KeysInterface(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_ChannelManager_free"))) TS_ChannelManager_free(uint32_t this_obj) {
@@ -20732,11 +20745,11 @@ uint32_t  __attribute__((export_name("TS_ChainParameters_get_best_block"))) TS_C
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKBestBlock ret_var = ChainParameters_get_best_block(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20764,11 +20777,11 @@ uint32_t  __attribute__((export_name("TS_ChainParameters_new"))) TS_ChainParamet
        CHECK_INNER_FIELD_ACCESS_OR_NULL(best_block_arg_conv);
        best_block_arg_conv = BestBlock_clone(&best_block_arg_conv);
        LDKChainParameters ret_var = ChainParameters_new(network_arg_conv, best_block_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20777,22 +20790,22 @@ uint32_t  __attribute__((export_name("TS_ChainParameters_new"))) TS_ChainParamet
 
 static inline uintptr_t ChainParameters_clone_ptr(LDKChainParameters *NONNULL_PTR arg) {
        LDKChainParameters ret_var = ChainParameters_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChainParameters_clone_ptr"))) TS_ChainParameters_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChainParameters_clone_ptr"))) TS_ChainParameters_clone_ptr(uint32_t arg) {
        LDKChainParameters arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChainParameters_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChainParameters_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -20802,11 +20815,11 @@ uint32_t  __attribute__((export_name("TS_ChainParameters_clone"))) TS_ChainParam
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChainParameters ret_var = ChainParameters_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20874,11 +20887,11 @@ void  __attribute__((export_name("TS_CounterpartyForwardingInfo_set_cltv_expiry_
 
 uint32_t  __attribute__((export_name("TS_CounterpartyForwardingInfo_new"))) TS_CounterpartyForwardingInfo_new(int32_t fee_base_msat_arg, int32_t fee_proportional_millionths_arg, int16_t cltv_expiry_delta_arg) {
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_new(fee_base_msat_arg, fee_proportional_millionths_arg, cltv_expiry_delta_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20887,22 +20900,22 @@ uint32_t  __attribute__((export_name("TS_CounterpartyForwardingInfo_new"))) TS_C
 
 static inline uintptr_t CounterpartyForwardingInfo_clone_ptr(LDKCounterpartyForwardingInfo *NONNULL_PTR arg) {
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_CounterpartyForwardingInfo_clone_ptr"))) TS_CounterpartyForwardingInfo_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CounterpartyForwardingInfo_clone_ptr"))) TS_CounterpartyForwardingInfo_clone_ptr(uint32_t arg) {
        LDKCounterpartyForwardingInfo arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = CounterpartyForwardingInfo_clone_ptr(&arg_conv);
+       intptr_t ret_val = CounterpartyForwardingInfo_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -20912,11 +20925,11 @@ uint32_t  __attribute__((export_name("TS_CounterpartyForwardingInfo_clone"))) TS
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -20936,7 +20949,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelCounterparty_get_node_id")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelCounterparty_get_node_id(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -20948,7 +20961,7 @@ void  __attribute__((export_name("TS_ChannelCounterparty_set_node_id"))) TS_Chan
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelCounterparty_set_node_id(&this_ptr_conv, val_ref);
 }
 
@@ -20958,11 +20971,11 @@ uint32_t  __attribute__((export_name("TS_ChannelCounterparty_get_features"))) TS
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKInitFeatures ret_var = ChannelCounterparty_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21005,12 +21018,12 @@ uint32_t  __attribute__((export_name("TS_ChannelCounterparty_get_forwarding_info
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCounterpartyForwardingInfo ret_var = ChannelCounterparty_get_forwarding_info(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -21034,7 +21047,7 @@ void  __attribute__((export_name("TS_ChannelCounterparty_set_forwarding_info")))
 uint32_t  __attribute__((export_name("TS_ChannelCounterparty_new"))) TS_ChannelCounterparty_new(int8_tArray node_id_arg, uint32_t features_arg, int64_t unspendable_punishment_reserve_arg, uint32_t forwarding_info_arg) {
        LDKPublicKey node_id_arg_ref;
        CHECK(node_id_arg->arr_len == 33);
-       memcpy(node_id_arg_ref.compressed_form, node_id_arg->elems, 33);
+       memcpy(node_id_arg_ref.compressed_form, node_id_arg->elems, 33); FREE(node_id_arg);
        LDKInitFeatures features_arg_conv;
        features_arg_conv.inner = (void*)(features_arg & (~1));
        features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
@@ -21046,11 +21059,11 @@ uint32_t  __attribute__((export_name("TS_ChannelCounterparty_new"))) TS_ChannelC
        CHECK_INNER_FIELD_ACCESS_OR_NULL(forwarding_info_arg_conv);
        forwarding_info_arg_conv = CounterpartyForwardingInfo_clone(&forwarding_info_arg_conv);
        LDKChannelCounterparty ret_var = ChannelCounterparty_new(node_id_arg_ref, features_arg_conv, unspendable_punishment_reserve_arg, forwarding_info_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21059,22 +21072,22 @@ uint32_t  __attribute__((export_name("TS_ChannelCounterparty_new"))) TS_ChannelC
 
 static inline uintptr_t ChannelCounterparty_clone_ptr(LDKChannelCounterparty *NONNULL_PTR arg) {
        LDKChannelCounterparty ret_var = ChannelCounterparty_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelCounterparty_clone_ptr"))) TS_ChannelCounterparty_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelCounterparty_clone_ptr"))) TS_ChannelCounterparty_clone_ptr(uint32_t arg) {
        LDKChannelCounterparty arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelCounterparty_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelCounterparty_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -21084,11 +21097,11 @@ uint32_t  __attribute__((export_name("TS_ChannelCounterparty_clone"))) TS_Channe
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelCounterparty ret_var = ChannelCounterparty_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21108,7 +21121,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelDetails_get_channel_id"))) TS
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ChannelDetails_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -21120,7 +21133,7 @@ void  __attribute__((export_name("TS_ChannelDetails_set_channel_id"))) TS_Channe
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ChannelDetails_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -21130,11 +21143,11 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_counterparty"))) TS_
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelCounterparty ret_var = ChannelDetails_get_counterparty(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21160,12 +21173,12 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_funding_txo"))) TS_C
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKOutPoint ret_var = ChannelDetails_get_funding_txo(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -21193,7 +21206,7 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_short_channel_id")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_short_channel_id(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21202,10 +21215,10 @@ void  __attribute__((export_name("TS_ChannelDetails_set_short_channel_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        ChannelDetails_set_short_channel_id(&this_ptr_conv, val_conv);
 }
 
@@ -21233,7 +21246,7 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_unspendable_punishme
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_unspendable_punishment_reserve(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21242,10 +21255,10 @@ void  __attribute__((export_name("TS_ChannelDetails_set_unspendable_punishment_r
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        ChannelDetails_set_unspendable_punishment_reserve(&this_ptr_conv, val_conv);
 }
 
@@ -21324,7 +21337,7 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_confirmations_requir
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = ChannelDetails_get_confirmations_required(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21333,10 +21346,10 @@ void  __attribute__((export_name("TS_ChannelDetails_set_confirmations_required")
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
-       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)val) & ~1));
        ChannelDetails_set_confirmations_required(&this_ptr_conv, val_conv);
 }
 
@@ -21347,7 +21360,7 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_get_force_close_spend_de
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = ChannelDetails_get_force_close_spend_delay(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21356,10 +21369,10 @@ void  __attribute__((export_name("TS_ChannelDetails_set_force_close_spend_delay"
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u16Z val_conv = *(LDKCOption_u16Z*)(val_ptr);
-       val_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uintptr_t)val) & ~1));
        ChannelDetails_set_force_close_spend_delay(&this_ptr_conv, val_conv);
 }
 
@@ -21434,7 +21447,7 @@ void  __attribute__((export_name("TS_ChannelDetails_set_is_public"))) TS_Channel
 uint32_t  __attribute__((export_name("TS_ChannelDetails_new"))) TS_ChannelDetails_new(int8_tArray channel_id_arg, uint32_t counterparty_arg, uint32_t funding_txo_arg, uint32_t short_channel_id_arg, int64_t channel_value_satoshis_arg, uint32_t unspendable_punishment_reserve_arg, int64_t user_channel_id_arg, int64_t balance_msat_arg, int64_t outbound_capacity_msat_arg, int64_t inbound_capacity_msat_arg, uint32_t confirmations_required_arg, uint32_t force_close_spend_delay_arg, jboolean is_outbound_arg, jboolean is_funding_locked_arg, jboolean is_usable_arg, jboolean is_public_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKChannelCounterparty counterparty_arg_conv;
        counterparty_arg_conv.inner = (void*)(counterparty_arg & (~1));
        counterparty_arg_conv.is_owned = (counterparty_arg & 1) || (counterparty_arg == 0);
@@ -21445,27 +21458,27 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_new"))) TS_ChannelDetail
        funding_txo_arg_conv.is_owned = (funding_txo_arg & 1) || (funding_txo_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_arg_conv);
        funding_txo_arg_conv = OutPoint_clone(&funding_txo_arg_conv);
-       void* short_channel_id_arg_ptr = (void*)(((uint64_t)short_channel_id_arg) & ~1);
+       void* short_channel_id_arg_ptr = (void*)(((uintptr_t)short_channel_id_arg) & ~1);
        CHECK_ACCESS(short_channel_id_arg_ptr);
        LDKCOption_u64Z short_channel_id_arg_conv = *(LDKCOption_u64Z*)(short_channel_id_arg_ptr);
-       short_channel_id_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)short_channel_id_arg) & ~1));
-       void* unspendable_punishment_reserve_arg_ptr = (void*)(((uint64_t)unspendable_punishment_reserve_arg) & ~1);
+       short_channel_id_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id_arg) & ~1));
+       void* unspendable_punishment_reserve_arg_ptr = (void*)(((uintptr_t)unspendable_punishment_reserve_arg) & ~1);
        CHECK_ACCESS(unspendable_punishment_reserve_arg_ptr);
        LDKCOption_u64Z unspendable_punishment_reserve_arg_conv = *(LDKCOption_u64Z*)(unspendable_punishment_reserve_arg_ptr);
-       void* confirmations_required_arg_ptr = (void*)(((uint64_t)confirmations_required_arg) & ~1);
+       void* confirmations_required_arg_ptr = (void*)(((uintptr_t)confirmations_required_arg) & ~1);
        CHECK_ACCESS(confirmations_required_arg_ptr);
        LDKCOption_u32Z confirmations_required_arg_conv = *(LDKCOption_u32Z*)(confirmations_required_arg_ptr);
-       confirmations_required_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)confirmations_required_arg) & ~1));
-       void* force_close_spend_delay_arg_ptr = (void*)(((uint64_t)force_close_spend_delay_arg) & ~1);
+       confirmations_required_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)confirmations_required_arg) & ~1));
+       void* force_close_spend_delay_arg_ptr = (void*)(((uintptr_t)force_close_spend_delay_arg) & ~1);
        CHECK_ACCESS(force_close_spend_delay_arg_ptr);
        LDKCOption_u16Z force_close_spend_delay_arg_conv = *(LDKCOption_u16Z*)(force_close_spend_delay_arg_ptr);
-       force_close_spend_delay_arg_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uint64_t)force_close_spend_delay_arg) & ~1));
+       force_close_spend_delay_arg_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uintptr_t)force_close_spend_delay_arg) & ~1));
        LDKChannelDetails ret_var = ChannelDetails_new(channel_id_arg_ref, counterparty_arg_conv, funding_txo_arg_conv, short_channel_id_arg_conv, channel_value_satoshis_arg, unspendable_punishment_reserve_arg_conv, user_channel_id_arg, balance_msat_arg, outbound_capacity_msat_arg, inbound_capacity_msat_arg, confirmations_required_arg_conv, force_close_spend_delay_arg_conv, is_outbound_arg, is_funding_locked_arg, is_usable_arg, is_public_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21474,22 +21487,22 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_new"))) TS_ChannelDetail
 
 static inline uintptr_t ChannelDetails_clone_ptr(LDKChannelDetails *NONNULL_PTR arg) {
        LDKChannelDetails ret_var = ChannelDetails_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelDetails_clone_ptr"))) TS_ChannelDetails_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelDetails_clone_ptr"))) TS_ChannelDetails_clone_ptr(uint32_t arg) {
        LDKChannelDetails arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelDetails_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelDetails_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -21499,11 +21512,11 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_clone"))) TS_ChannelDeta
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelDetails ret_var = ChannelDetails_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21512,7 +21525,7 @@ uint32_t  __attribute__((export_name("TS_ChannelDetails_clone"))) TS_ChannelDeta
 
 void  __attribute__((export_name("TS_PaymentSendFailure_free"))) TS_PaymentSendFailure_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPaymentSendFailure this_ptr_conv = *(LDKPaymentSendFailure*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -21522,12 +21535,12 @@ void  __attribute__((export_name("TS_PaymentSendFailure_free"))) TS_PaymentSendF
 static inline uintptr_t PaymentSendFailure_clone_ptr(LDKPaymentSendFailure *NONNULL_PTR arg) {
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_PaymentSendFailure_clone_ptr"))) TS_PaymentSendFailure_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_PaymentSendFailure_clone_ptr"))) TS_PaymentSendFailure_clone_ptr(uint32_t arg) {
        LDKPaymentSendFailure* arg_conv = (LDKPaymentSendFailure*)arg;
-       int64_t ret_val = PaymentSendFailure_clone_ptr(arg_conv);
+       intptr_t ret_val = PaymentSendFailure_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -21535,18 +21548,18 @@ uint32_t  __attribute__((export_name("TS_PaymentSendFailure_clone"))) TS_Payment
        LDKPaymentSendFailure* orig_conv = (LDKPaymentSendFailure*)orig;
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_PaymentSendFailure_parameter_error"))) TS_PaymentSendFailure_parameter_error(uint32_t a) {
-       void* a_ptr = (void*)(((uint64_t)a) & ~1);
+       void* a_ptr = (void*)(((uintptr_t)a) & ~1);
        CHECK_ACCESS(a_ptr);
        LDKAPIError a_conv = *(LDKAPIError*)(a_ptr);
-       a_conv = APIError_clone((LDKAPIError*)(((uint64_t)a) & ~1));
+       a_conv = APIError_clone((LDKAPIError*)(((uintptr_t)a) & ~1));
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_parameter_error(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21557,18 +21570,18 @@ uint32_t  __attribute__((export_name("TS_PaymentSendFailure_path_parameter_error
                a_constr.data = MALLOC(a_constr.datalen * sizeof(LDKCResult_NoneAPIErrorZ), "LDKCVec_CResult_NoneAPIErrorZZ Elements");
        else
                a_constr.data = NULL;
-       uint32_t* a_vals = a->elems;
+       uint32_t* a_vals = a->elems /* XXX a leaks */;
        for (size_t w = 0; w < a_constr.datalen; w++) {
                uint32_t a_conv_22 = a_vals[w];
-               void* a_conv_22_ptr = (void*)(((uint64_t)a_conv_22) & ~1);
+               void* a_conv_22_ptr = (void*)(((uintptr_t)a_conv_22) & ~1);
                CHECK_ACCESS(a_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ a_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(a_conv_22_ptr);
-               a_conv_22_conv = CResult_NoneAPIErrorZ_clone((LDKCResult_NoneAPIErrorZ*)(((uint64_t)a_conv_22) & ~1));
+               a_conv_22_conv = CResult_NoneAPIErrorZ_clone((LDKCResult_NoneAPIErrorZ*)(((uintptr_t)a_conv_22) & ~1));
                a_constr.data[w] = a_conv_22_conv;
        }
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_path_parameter_error(a_constr);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21579,18 +21592,18 @@ uint32_t  __attribute__((export_name("TS_PaymentSendFailure_all_failed_retry_saf
                a_constr.data = MALLOC(a_constr.datalen * sizeof(LDKAPIError), "LDKCVec_APIErrorZ Elements");
        else
                a_constr.data = NULL;
-       uint32_t* a_vals = a->elems;
+       uint32_t* a_vals = a->elems /* XXX a leaks */;
        for (size_t k = 0; k < a_constr.datalen; k++) {
                uint32_t a_conv_10 = a_vals[k];
-               void* a_conv_10_ptr = (void*)(((uint64_t)a_conv_10) & ~1);
+               void* a_conv_10_ptr = (void*)(((uintptr_t)a_conv_10) & ~1);
                CHECK_ACCESS(a_conv_10_ptr);
                LDKAPIError a_conv_10_conv = *(LDKAPIError*)(a_conv_10_ptr);
-               a_conv_10_conv = APIError_clone((LDKAPIError*)(((uint64_t)a_conv_10) & ~1));
+               a_conv_10_conv = APIError_clone((LDKAPIError*)(((uintptr_t)a_conv_10) & ~1));
                a_constr.data[k] = a_conv_10_conv;
        }
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_all_failed_retry_safe(a_constr);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -21601,10 +21614,10 @@ uint32_t  __attribute__((export_name("TS_PaymentSendFailure_partial_failure")))
                results_constr.data = MALLOC(results_constr.datalen * sizeof(LDKCResult_NoneAPIErrorZ), "LDKCVec_CResult_NoneAPIErrorZZ Elements");
        else
                results_constr.data = NULL;
-       uint32_t* results_vals = results->elems;
+       uint32_t* results_vals = results->elems /* XXX results leaks */;
        for (size_t w = 0; w < results_constr.datalen; w++) {
                uint32_t results_conv_22 = results_vals[w];
-               void* results_conv_22_ptr = (void*)(((uint64_t)results_conv_22) & ~1);
+               void* results_conv_22_ptr = (void*)(((uintptr_t)results_conv_22) & ~1);
                CHECK_ACCESS(results_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ results_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(results_conv_22_ptr);
                results_constr.data[w] = results_conv_22_conv;
@@ -21616,27 +21629,27 @@ uint32_t  __attribute__((export_name("TS_PaymentSendFailure_partial_failure")))
        failed_paths_retry_conv = RouteParameters_clone(&failed_paths_retry_conv);
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_partial_failure(results_constr, failed_paths_retry_conv, payment_id_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_new"))) TS_ChannelManager_new(uint32_t fee_est, uint32_t chain_monitor, uint32_t tx_broadcaster, uint32_t logger, uint32_t keys_manager, uint32_t config, uint32_t params) {
-       void* fee_est_ptr = (void*)(((uint64_t)fee_est) & ~1);
+       void* fee_est_ptr = (void*)(((uintptr_t)fee_est) & ~1);
        CHECK_ACCESS(fee_est_ptr);
        LDKFeeEstimator fee_est_conv = *(LDKFeeEstimator*)(fee_est_ptr);
-       void* chain_monitor_ptr = (void*)(((uint64_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = (void*)(((uintptr_t)chain_monitor) & ~1);
        CHECK_ACCESS(chain_monitor_ptr);
        LDKWatch chain_monitor_conv = *(LDKWatch*)(chain_monitor_ptr);
-       void* tx_broadcaster_ptr = (void*)(((uint64_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = (void*)(((uintptr_t)tx_broadcaster) & ~1);
        CHECK_ACCESS(tx_broadcaster_ptr);
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(tx_broadcaster_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
-       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        LDKUserConfig config_conv;
@@ -21650,11 +21663,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_new"))) TS_ChannelManage
        CHECK_INNER_FIELD_ACCESS_OR_NULL(params_conv);
        params_conv = ChainParameters_clone(&params_conv);
        LDKChannelManager ret_var = ChannelManager_new(fee_est_conv, chain_monitor_conv, tx_broadcaster_conv, logger_conv, keys_manager_conv, config_conv, params_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21667,11 +21680,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_get_current_default_conf
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKUserConfig ret_var = ChannelManager_get_current_default_configuration(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -21685,7 +21698,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_channel"))) TS_Ch
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKPublicKey their_network_key_ref;
        CHECK(their_network_key->arr_len == 33);
-       memcpy(their_network_key_ref.compressed_form, their_network_key->elems, 33);
+       memcpy(their_network_key_ref.compressed_form, their_network_key->elems, 33); FREE(their_network_key);
        LDKUserConfig override_config_conv;
        override_config_conv.inner = (void*)(override_config & (~1));
        override_config_conv.is_owned = (override_config & 1) || (override_config == 0);
@@ -21693,7 +21706,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_channel"))) TS_Ch
        override_config_conv = UserConfig_clone(&override_config_conv);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = ChannelManager_create_channel(&this_arg_conv, their_network_key_ref, channel_value_satoshis, push_msat, user_channel_id, override_config_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_tArray  __attribute__((export_name("TS_ChannelManager_list_channels"))) TS_ChannelManager_list_channels(uint32_t this_arg) {
@@ -21703,15 +21716,15 @@ uint32_tArray  __attribute__((export_name("TS_ChannelManager_list_channels"))) T
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_ChannelDetailsZ ret_var = ChannelManager_list_channels(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
-               uint64_t ret_conv_16_ref = 0;
-               CHECK((((uint64_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_16_ref = 0;
+               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uint64_t)ret_conv_16_var.inner;
+               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
                if (ret_conv_16_var.is_owned) {
                        ret_conv_16_ref |= 1;
                }
@@ -21729,15 +21742,15 @@ uint32_tArray  __attribute__((export_name("TS_ChannelManager_list_usable_channel
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_ChannelDetailsZ ret_var = ChannelManager_list_usable_channels(&this_arg_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
-               uint64_t ret_conv_16_ref = 0;
-               CHECK((((uint64_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_16_ref = 0;
+               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uint64_t)ret_conv_16_var.inner;
+               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
                if (ret_conv_16_var.is_owned) {
                        ret_conv_16_ref |= 1;
                }
@@ -21755,11 +21768,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_close_channel"))) TS_Cha
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char channel_id_arr[32];
        CHECK(channel_id->arr_len == 32);
-       memcpy(channel_id_arr, channel_id->elems, 32);
+       memcpy(channel_id_arr, channel_id->elems, 32); FREE(channel_id);
        unsigned char (*channel_id_ref)[32] = &channel_id_arr;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_close_channel(&this_arg_conv, channel_id_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_close_channel_with_target_feerate"))) TS_ChannelManager_close_channel_with_target_feerate(uint32_t this_arg, int8_tArray channel_id, int32_t target_feerate_sats_per_1000_weight) {
@@ -21769,11 +21782,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_close_channel_with_targe
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char channel_id_arr[32];
        CHECK(channel_id->arr_len == 32);
-       memcpy(channel_id_arr, channel_id->elems, 32);
+       memcpy(channel_id_arr, channel_id->elems, 32); FREE(channel_id);
        unsigned char (*channel_id_ref)[32] = &channel_id_arr;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_close_channel_with_target_feerate(&this_arg_conv, channel_id_ref, target_feerate_sats_per_1000_weight);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_force_close_channel"))) TS_ChannelManager_force_close_channel(uint32_t this_arg, int8_tArray channel_id) {
@@ -21783,11 +21796,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_force_close_channel")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char channel_id_arr[32];
        CHECK(channel_id->arr_len == 32);
-       memcpy(channel_id_arr, channel_id->elems, 32);
+       memcpy(channel_id_arr, channel_id->elems, 32); FREE(channel_id);
        unsigned char (*channel_id_ref)[32] = &channel_id_arr;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_force_close_channel(&this_arg_conv, channel_id_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ChannelManager_force_close_all_channels"))) TS_ChannelManager_force_close_all_channels(uint32_t this_arg) {
@@ -21809,13 +21822,13 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_send_payment"))) TS_Chan
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
        LDKThirtyTwoBytes payment_secret_ref;
        CHECK(payment_secret->arr_len == 32);
-       memcpy(payment_secret_ref.data, payment_secret->elems, 32);
+       memcpy(payment_secret_ref.data, payment_secret->elems, 32); FREE(payment_secret);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = ChannelManager_send_payment(&this_arg_conv, &route_conv, payment_hash_ref, payment_secret_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_retry_payment"))) TS_ChannelManager_retry_payment(uint32_t this_arg, uint32_t route, int8_tArray payment_id) {
@@ -21829,10 +21842,10 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_retry_payment"))) TS_Cha
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = ChannelManager_retry_payment(&this_arg_conv, &route_conv, payment_id_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ChannelManager_abandon_payment"))) TS_ChannelManager_abandon_payment(uint32_t this_arg, int8_tArray payment_id) {
@@ -21842,7 +21855,7 @@ void  __attribute__((export_name("TS_ChannelManager_abandon_payment"))) TS_Chann
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThirtyTwoBytes payment_id_ref;
        CHECK(payment_id->arr_len == 32);
-       memcpy(payment_id_ref.data, payment_id->elems, 32);
+       memcpy(payment_id_ref.data, payment_id->elems, 32); FREE(payment_id);
        ChannelManager_abandon_payment(&this_arg_conv, payment_id_ref);
 }
 
@@ -21857,10 +21870,10 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_send_spontaneous_payment
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK(payment_preimage->arr_len == 32);
-       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32);
+       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32); FREE(payment_preimage);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = ChannelManager_send_spontaneous_payment(&this_arg_conv, &route_conv, payment_preimage_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_funding_transaction_generated"))) TS_ChannelManager_funding_transaction_generated(uint32_t this_arg, int8_tArray temporary_channel_id, int8_tArray funding_transaction) {
@@ -21870,16 +21883,16 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_funding_transaction_gene
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char temporary_channel_id_arr[32];
        CHECK(temporary_channel_id->arr_len == 32);
-       memcpy(temporary_channel_id_arr, temporary_channel_id->elems, 32);
+       memcpy(temporary_channel_id_arr, temporary_channel_id->elems, 32); FREE(temporary_channel_id);
        unsigned char (*temporary_channel_id_ref)[32] = &temporary_channel_id_arr;
        LDKTransaction funding_transaction_ref;
        funding_transaction_ref.datalen = funding_transaction->arr_len;
        funding_transaction_ref.data = MALLOC(funding_transaction_ref.datalen, "LDKTransaction Bytes");
-       memcpy(funding_transaction_ref.data, funding_transaction->elems, funding_transaction_ref.datalen);
+       memcpy(funding_transaction_ref.data, funding_transaction->elems, funding_transaction_ref.datalen); FREE(funding_transaction);
        funding_transaction_ref.data_is_owned = true;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_funding_transaction_generated(&this_arg_conv, temporary_channel_id_ref, funding_transaction_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ChannelManager_broadcast_node_announcement"))) TS_ChannelManager_broadcast_node_announcement(uint32_t this_arg, int8_tArray rgb, int8_tArray alias, uint32_tArray addresses) {
@@ -21889,20 +21902,20 @@ void  __attribute__((export_name("TS_ChannelManager_broadcast_node_announcement"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThreeBytes rgb_ref;
        CHECK(rgb->arr_len == 3);
-       memcpy(rgb_ref.data, rgb->elems, 3);
+       memcpy(rgb_ref.data, rgb->elems, 3); FREE(rgb);
        LDKThirtyTwoBytes alias_ref;
        CHECK(alias->arr_len == 32);
-       memcpy(alias_ref.data, alias->elems, 32);
+       memcpy(alias_ref.data, alias->elems, 32); FREE(alias);
        LDKCVec_NetAddressZ addresses_constr;
        addresses_constr.datalen = addresses->arr_len;
        if (addresses_constr.datalen > 0)
                addresses_constr.data = MALLOC(addresses_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                addresses_constr.data = NULL;
-       uint32_t* addresses_vals = addresses->elems;
+       uint32_t* addresses_vals = addresses->elems /* XXX addresses leaks */;
        for (size_t m = 0; m < addresses_constr.datalen; m++) {
                uint32_t addresses_conv_12 = addresses_vals[m];
-               void* addresses_conv_12_ptr = (void*)(((uint64_t)addresses_conv_12) & ~1);
+               void* addresses_conv_12_ptr = (void*)(((uintptr_t)addresses_conv_12) & ~1);
                CHECK_ACCESS(addresses_conv_12_ptr);
                LDKNetAddress addresses_conv_12_conv = *(LDKNetAddress*)(addresses_conv_12_ptr);
                addresses_constr.data[m] = addresses_conv_12_conv;
@@ -21933,7 +21946,7 @@ jboolean  __attribute__((export_name("TS_ChannelManager_fail_htlc_backwards")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char payment_hash_arr[32];
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_arr, payment_hash->elems, 32);
+       memcpy(payment_hash_arr, payment_hash->elems, 32); FREE(payment_hash);
        unsigned char (*payment_hash_ref)[32] = &payment_hash_arr;
        jboolean ret_val = ChannelManager_fail_htlc_backwards(&this_arg_conv, payment_hash_ref);
        return ret_val;
@@ -21946,7 +21959,7 @@ jboolean  __attribute__((export_name("TS_ChannelManager_claim_funds"))) TS_Chann
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK(payment_preimage->arr_len == 32);
-       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32);
+       memcpy(payment_preimage_ref.data, payment_preimage->elems, 32); FREE(payment_preimage);
        jboolean ret_val = ChannelManager_claim_funds(&this_arg_conv, payment_preimage_ref);
        return ret_val;
 }
@@ -21956,7 +21969,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelManager_get_our_node_id"))) T
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelManager_get_our_node_id(&this_arg_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -21966,13 +21979,13 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment")
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = ChannelManager_create_inbound_payment(&this_arg_conv, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_legacy"))) TS_ChannelManager_create_inbound_payment_legacy(uint32_t this_arg, uint32_t min_value_msat, int32_t invoice_expiry_delta_secs) {
@@ -21980,13 +21993,13 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_l
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = ChannelManager_create_inbound_payment_legacy(&this_arg_conv, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_for_hash"))) TS_ChannelManager_create_inbound_payment_for_hash(uint32_t this_arg, int8_tArray payment_hash, uint32_t min_value_msat, int32_t invoice_expiry_delta_secs) {
@@ -21996,14 +22009,14 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_f
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
-       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
+       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = ChannelManager_create_inbound_payment_for_hash(&this_arg_conv, payment_hash_ref, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_for_hash_legacy"))) TS_ChannelManager_create_inbound_payment_for_hash_legacy(uint32_t this_arg, int8_tArray payment_hash, uint32_t min_value_msat, int32_t invoice_expiry_delta_secs) {
@@ -22013,14 +22026,14 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_create_inbound_payment_f
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
-       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
+       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = ChannelManager_create_inbound_payment_for_hash_legacy(&this_arg_conv, payment_hash_ref, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_get_payment_preimage"))) TS_ChannelManager_get_payment_preimage(uint32_t this_arg, int8_tArray payment_hash, int8_tArray payment_secret) {
@@ -22030,13 +22043,13 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_get_payment_preimage")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK(payment_hash->arr_len == 32);
-       memcpy(payment_hash_ref.data, payment_hash->elems, 32);
+       memcpy(payment_hash_ref.data, payment_hash->elems, 32); FREE(payment_hash);
        LDKThirtyTwoBytes payment_secret_ref;
        CHECK(payment_secret->arr_len == 32);
-       memcpy(payment_secret_ref.data, payment_secret->elems, 32);
+       memcpy(payment_secret_ref.data, payment_secret->elems, 32); FREE(payment_secret);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = ChannelManager_get_payment_preimage(&this_arg_conv, payment_hash_ref, payment_secret_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_as_MessageSendEventsProvider"))) TS_ChannelManager_as_MessageSendEventsProvider(uint32_t this_arg) {
@@ -22046,7 +22059,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_as_MessageSendEventsProv
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = ChannelManager_as_MessageSendEventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_as_EventsProvider"))) TS_ChannelManager_as_EventsProvider(uint32_t this_arg) {
@@ -22056,7 +22069,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_as_EventsProvider"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKEventsProvider* ret_ret = MALLOC(sizeof(LDKEventsProvider), "LDKEventsProvider");
        *ret_ret = ChannelManager_as_EventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_as_Listen"))) TS_ChannelManager_as_Listen(uint32_t this_arg) {
@@ -22066,7 +22079,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_as_Listen"))) TS_Channel
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKListen* ret_ret = MALLOC(sizeof(LDKListen), "LDKListen");
        *ret_ret = ChannelManager_as_Listen(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManager_as_Confirm"))) TS_ChannelManager_as_Confirm(uint32_t this_arg) {
@@ -22076,7 +22089,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_as_Confirm"))) TS_Channe
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKConfirm* ret_ret = MALLOC(sizeof(LDKConfirm), "LDKConfirm");
        *ret_ret = ChannelManager_as_Confirm(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_ChannelManager_await_persistable_update"))) TS_ChannelManager_await_persistable_update(uint32_t this_arg) {
@@ -22093,11 +22106,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_current_best_block"))) T
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKBestBlock ret_var = ChannelManager_current_best_block(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22111,7 +22124,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManager_as_ChannelMessageHandler
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelMessageHandler* ret_ret = MALLOC(sizeof(LDKChannelMessageHandler), "LDKChannelMessageHandler");
        *ret_ret = ChannelManager_as_ChannelMessageHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelManager_write"))) TS_ChannelManager_write(uint32_t obj) {
@@ -22120,7 +22133,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelManager_write"))) TS_ChannelM
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelManager_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -22140,7 +22153,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_keys_manager
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)ChannelManagerReadArgs_get_keys_manager(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_keys_manager(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -22149,7 +22162,7 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_keys_manager")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKKeysInterface val_conv = *(LDKKeysInterface*)(val_ptr);
        ChannelManagerReadArgs_set_keys_manager(&this_ptr_conv, val_conv);
@@ -22161,7 +22174,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_fee_estimato
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)ChannelManagerReadArgs_get_fee_estimator(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_fee_estimator(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -22170,7 +22183,7 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_fee_estimator"))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKFeeEstimator val_conv = *(LDKFeeEstimator*)(val_ptr);
        ChannelManagerReadArgs_set_fee_estimator(&this_ptr_conv, val_conv);
@@ -22182,7 +22195,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_chain_monito
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)ChannelManagerReadArgs_get_chain_monitor(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_chain_monitor(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -22191,7 +22204,7 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_chain_monitor"))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKWatch val_conv = *(LDKWatch*)(val_ptr);
        ChannelManagerReadArgs_set_chain_monitor(&this_ptr_conv, val_conv);
@@ -22203,7 +22216,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_tx_broadcast
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)ChannelManagerReadArgs_get_tx_broadcaster(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_tx_broadcaster(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -22212,7 +22225,7 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_tx_broadcaster")
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKBroadcasterInterface val_conv = *(LDKBroadcasterInterface*)(val_ptr);
        ChannelManagerReadArgs_set_tx_broadcaster(&this_ptr_conv, val_conv);
@@ -22224,7 +22237,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_logger"))) T
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)ChannelManagerReadArgs_get_logger(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_logger(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -22233,7 +22246,7 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_logger"))) TS_Ch
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKLogger val_conv = *(LDKLogger*)(val_ptr);
        ChannelManagerReadArgs_set_logger(&this_ptr_conv, val_conv);
@@ -22245,11 +22258,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_get_default_conf
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKUserConfig ret_var = ChannelManagerReadArgs_get_default_config(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22270,19 +22283,19 @@ void  __attribute__((export_name("TS_ChannelManagerReadArgs_set_default_config")
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_new"))) TS_ChannelManagerReadArgs_new(uint32_t keys_manager, uint32_t fee_estimator, uint32_t chain_monitor, uint32_t tx_broadcaster, uint32_t logger, uint32_t default_config, uint32_tArray channel_monitors) {
-       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
-       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
-       void* chain_monitor_ptr = (void*)(((uint64_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = (void*)(((uintptr_t)chain_monitor) & ~1);
        CHECK_ACCESS(chain_monitor_ptr);
        LDKWatch chain_monitor_conv = *(LDKWatch*)(chain_monitor_ptr);
-       void* tx_broadcaster_ptr = (void*)(((uint64_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = (void*)(((uintptr_t)tx_broadcaster) & ~1);
        CHECK_ACCESS(tx_broadcaster_ptr);
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(tx_broadcaster_ptr);
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        LDKUserConfig default_config_conv;
@@ -22296,7 +22309,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_new"))) TS_Chann
                channel_monitors_constr.data = MALLOC(channel_monitors_constr.datalen * sizeof(LDKChannelMonitor), "LDKCVec_ChannelMonitorZ Elements");
        else
                channel_monitors_constr.data = NULL;
-       uint32_t* channel_monitors_vals = channel_monitors->elems;
+       uint32_t* channel_monitors_vals = channel_monitors->elems /* XXX channel_monitors leaks */;
        for (size_t q = 0; q < channel_monitors_constr.datalen; q++) {
                uint32_t channel_monitors_conv_16 = channel_monitors_vals[q];
                LDKChannelMonitor channel_monitors_conv_16_conv;
@@ -22306,11 +22319,11 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_new"))) TS_Chann
                channel_monitors_constr.data[q] = channel_monitors_conv_16_conv;
        }
        LDKChannelManagerReadArgs ret_var = ChannelManagerReadArgs_new(keys_manager_conv, fee_estimator_conv, chain_monitor_conv, tx_broadcaster_conv, logger_conv, default_config_conv, channel_monitors_constr);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22320,7 +22333,7 @@ uint32_t  __attribute__((export_name("TS_ChannelManagerReadArgs_new"))) TS_Chann
 uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_read"))) TS_C2Tuple_BlockHashChannelManagerZ_read(int8_tArray ser, uint32_t arg) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKChannelManagerReadArgs arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = (arg & 1) || (arg == 0);
@@ -22328,7 +22341,7 @@ uint32_t  __attribute__((export_name("TS_C2Tuple_BlockHashChannelManagerZ_read")
        // Warning: we need a move here but no clone is available for LDKChannelManagerReadArgs
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = C2Tuple_BlockHashChannelManagerZ_read(ser_ref, arg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_DecodeError_free"))) TS_DecodeError_free(uint32_t this_obj) {
@@ -22341,22 +22354,22 @@ void  __attribute__((export_name("TS_DecodeError_free"))) TS_DecodeError_free(ui
 
 static inline uintptr_t DecodeError_clone_ptr(LDKDecodeError *NONNULL_PTR arg) {
        LDKDecodeError ret_var = DecodeError_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_DecodeError_clone_ptr"))) TS_DecodeError_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_DecodeError_clone_ptr"))) TS_DecodeError_clone_ptr(uint32_t arg) {
        LDKDecodeError arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = DecodeError_clone_ptr(&arg_conv);
+       intptr_t ret_val = DecodeError_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -22366,11 +22379,11 @@ uint32_t  __attribute__((export_name("TS_DecodeError_clone"))) TS_DecodeError_cl
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKDecodeError ret_var = DecodeError_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22391,11 +22404,11 @@ uint32_t  __attribute__((export_name("TS_Init_get_features"))) TS_Init_get_featu
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKInitFeatures ret_var = Init_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22422,11 +22435,11 @@ uint32_t  __attribute__((export_name("TS_Init_new"))) TS_Init_new(uint32_t featu
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_arg_conv);
        features_arg_conv = InitFeatures_clone(&features_arg_conv);
        LDKInit ret_var = Init_new(features_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22435,22 +22448,22 @@ uint32_t  __attribute__((export_name("TS_Init_new"))) TS_Init_new(uint32_t featu
 
 static inline uintptr_t Init_clone_ptr(LDKInit *NONNULL_PTR arg) {
        LDKInit ret_var = Init_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Init_clone_ptr"))) TS_Init_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Init_clone_ptr"))) TS_Init_clone_ptr(uint32_t arg) {
        LDKInit arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Init_clone_ptr(&arg_conv);
+       intptr_t ret_val = Init_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -22460,11 +22473,11 @@ uint32_t  __attribute__((export_name("TS_Init_clone"))) TS_Init_clone(uint32_t o
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKInit ret_var = Init_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22484,7 +22497,7 @@ int8_tArray  __attribute__((export_name("TS_ErrorMessage_get_channel_id"))) TS_E
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ErrorMessage_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -22496,7 +22509,7 @@ void  __attribute__((export_name("TS_ErrorMessage_set_channel_id"))) TS_ErrorMes
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ErrorMessage_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -22523,14 +22536,14 @@ void  __attribute__((export_name("TS_ErrorMessage_set_data"))) TS_ErrorMessage_s
 uint32_t  __attribute__((export_name("TS_ErrorMessage_new"))) TS_ErrorMessage_new(int8_tArray channel_id_arg, jstring data_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKStr data_arg_conv = str_ref_to_owned_c(data_arg);
        LDKErrorMessage ret_var = ErrorMessage_new(channel_id_arg_ref, data_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22539,22 +22552,22 @@ uint32_t  __attribute__((export_name("TS_ErrorMessage_new"))) TS_ErrorMessage_ne
 
 static inline uintptr_t ErrorMessage_clone_ptr(LDKErrorMessage *NONNULL_PTR arg) {
        LDKErrorMessage ret_var = ErrorMessage_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ErrorMessage_clone_ptr"))) TS_ErrorMessage_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ErrorMessage_clone_ptr"))) TS_ErrorMessage_clone_ptr(uint32_t arg) {
        LDKErrorMessage arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ErrorMessage_clone_ptr(&arg_conv);
+       intptr_t ret_val = ErrorMessage_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -22564,11 +22577,11 @@ uint32_t  __attribute__((export_name("TS_ErrorMessage_clone"))) TS_ErrorMessage_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKErrorMessage ret_var = ErrorMessage_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22619,11 +22632,11 @@ void  __attribute__((export_name("TS_Ping_set_byteslen"))) TS_Ping_set_byteslen(
 
 uint32_t  __attribute__((export_name("TS_Ping_new"))) TS_Ping_new(int16_t ponglen_arg, int16_t byteslen_arg) {
        LDKPing ret_var = Ping_new(ponglen_arg, byteslen_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22632,22 +22645,22 @@ uint32_t  __attribute__((export_name("TS_Ping_new"))) TS_Ping_new(int16_t pongle
 
 static inline uintptr_t Ping_clone_ptr(LDKPing *NONNULL_PTR arg) {
        LDKPing ret_var = Ping_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Ping_clone_ptr"))) TS_Ping_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Ping_clone_ptr"))) TS_Ping_clone_ptr(uint32_t arg) {
        LDKPing arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Ping_clone_ptr(&arg_conv);
+       intptr_t ret_val = Ping_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -22657,11 +22670,11 @@ uint32_t  __attribute__((export_name("TS_Ping_clone"))) TS_Ping_clone(uint32_t o
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKPing ret_var = Ping_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22695,11 +22708,11 @@ void  __attribute__((export_name("TS_Pong_set_byteslen"))) TS_Pong_set_byteslen(
 
 uint32_t  __attribute__((export_name("TS_Pong_new"))) TS_Pong_new(int16_t byteslen_arg) {
        LDKPong ret_var = Pong_new(byteslen_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22708,22 +22721,22 @@ uint32_t  __attribute__((export_name("TS_Pong_new"))) TS_Pong_new(int16_t bytesl
 
 static inline uintptr_t Pong_clone_ptr(LDKPong *NONNULL_PTR arg) {
        LDKPong ret_var = Pong_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Pong_clone_ptr"))) TS_Pong_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Pong_clone_ptr"))) TS_Pong_clone_ptr(uint32_t arg) {
        LDKPong arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Pong_clone_ptr(&arg_conv);
+       intptr_t ret_val = Pong_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -22733,11 +22746,11 @@ uint32_t  __attribute__((export_name("TS_Pong_clone"))) TS_Pong_clone(uint32_t o
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKPong ret_var = Pong_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -22757,7 +22770,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_chain_hash"))) TS_Op
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *OpenChannel_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -22769,7 +22782,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_chain_hash"))) TS_OpenChann
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        OpenChannel_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -22778,7 +22791,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_temporary_channel_id
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *OpenChannel_get_temporary_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -22790,7 +22803,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_temporary_channel_id"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        OpenChannel_set_temporary_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -22952,7 +22965,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_funding_pubkey"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_funding_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -22964,7 +22977,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_funding_pubkey"))) TS_OpenC
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_funding_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -22973,7 +22986,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_revocation_basepoint
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_revocation_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -22985,7 +22998,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_revocation_basepoint"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_revocation_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -22994,7 +23007,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_payment_point"))) TS
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_payment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23006,7 +23019,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_payment_point"))) TS_OpenCh
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_payment_point(&this_ptr_conv, val_ref);
 }
 
@@ -23015,7 +23028,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_delayed_payment_base
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23027,7 +23040,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_delayed_payment_basepoint")
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_delayed_payment_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -23036,7 +23049,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_htlc_basepoint"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_htlc_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23048,7 +23061,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_htlc_basepoint"))) TS_OpenC
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_htlc_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -23057,7 +23070,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_get_first_per_commitment
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, OpenChannel_get_first_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23069,7 +23082,7 @@ void  __attribute__((export_name("TS_OpenChannel_set_first_per_commitment_point"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        OpenChannel_set_first_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
@@ -23096,12 +23109,12 @@ uint32_t  __attribute__((export_name("TS_OpenChannel_get_channel_type"))) TS_Ope
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelTypeFeatures ret_var = OpenChannel_get_channel_type(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -23124,22 +23137,22 @@ void  __attribute__((export_name("TS_OpenChannel_set_channel_type"))) TS_OpenCha
 
 static inline uintptr_t OpenChannel_clone_ptr(LDKOpenChannel *NONNULL_PTR arg) {
        LDKOpenChannel ret_var = OpenChannel_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_OpenChannel_clone_ptr"))) TS_OpenChannel_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_OpenChannel_clone_ptr"))) TS_OpenChannel_clone_ptr(uint32_t arg) {
        LDKOpenChannel arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = OpenChannel_clone_ptr(&arg_conv);
+       intptr_t ret_val = OpenChannel_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23149,11 +23162,11 @@ uint32_t  __attribute__((export_name("TS_OpenChannel_clone"))) TS_OpenChannel_cl
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKOpenChannel ret_var = OpenChannel_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23173,7 +23186,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_temporary_channel_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *AcceptChannel_get_temporary_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23185,7 +23198,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_temporary_channel_id")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        AcceptChannel_set_temporary_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -23313,7 +23326,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_funding_pubkey")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_funding_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23325,7 +23338,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_funding_pubkey"))) TS_Acc
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_funding_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -23334,7 +23347,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_revocation_basepoi
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_revocation_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23346,7 +23359,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_revocation_basepoint")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_revocation_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -23355,7 +23368,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_payment_point")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_payment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23367,7 +23380,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_payment_point"))) TS_Acce
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_payment_point(&this_ptr_conv, val_ref);
 }
 
@@ -23376,7 +23389,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_delayed_payment_ba
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23388,7 +23401,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_delayed_payment_basepoint
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_delayed_payment_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -23397,7 +23410,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_htlc_basepoint")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_htlc_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23409,7 +23422,7 @@ void  __attribute__((export_name("TS_AcceptChannel_set_htlc_basepoint"))) TS_Acc
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_htlc_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -23418,7 +23431,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_get_first_per_commitme
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, AcceptChannel_get_first_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23430,28 +23443,28 @@ void  __attribute__((export_name("TS_AcceptChannel_set_first_per_commitment_poin
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        AcceptChannel_set_first_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
 static inline uintptr_t AcceptChannel_clone_ptr(LDKAcceptChannel *NONNULL_PTR arg) {
        LDKAcceptChannel ret_var = AcceptChannel_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_AcceptChannel_clone_ptr"))) TS_AcceptChannel_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_AcceptChannel_clone_ptr"))) TS_AcceptChannel_clone_ptr(uint32_t arg) {
        LDKAcceptChannel arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = AcceptChannel_clone_ptr(&arg_conv);
+       intptr_t ret_val = AcceptChannel_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23461,11 +23474,11 @@ uint32_t  __attribute__((export_name("TS_AcceptChannel_clone"))) TS_AcceptChanne
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKAcceptChannel ret_var = AcceptChannel_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23485,7 +23498,7 @@ int8_tArray  __attribute__((export_name("TS_FundingCreated_get_temporary_channel
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *FundingCreated_get_temporary_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23497,7 +23510,7 @@ void  __attribute__((export_name("TS_FundingCreated_set_temporary_channel_id")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        FundingCreated_set_temporary_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -23506,7 +23519,7 @@ int8_tArray  __attribute__((export_name("TS_FundingCreated_get_funding_txid")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *FundingCreated_get_funding_txid(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23518,7 +23531,7 @@ void  __attribute__((export_name("TS_FundingCreated_set_funding_txid"))) TS_Fund
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        FundingCreated_set_funding_txid(&this_ptr_conv, val_ref);
 }
 
@@ -23544,7 +23557,7 @@ int8_tArray  __attribute__((export_name("TS_FundingCreated_get_signature"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, FundingCreated_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -23556,26 +23569,26 @@ void  __attribute__((export_name("TS_FundingCreated_set_signature"))) TS_Funding
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        FundingCreated_set_signature(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_FundingCreated_new"))) TS_FundingCreated_new(int8_tArray temporary_channel_id_arg, int8_tArray funding_txid_arg, int16_t funding_output_index_arg, int8_tArray signature_arg) {
        LDKThirtyTwoBytes temporary_channel_id_arg_ref;
        CHECK(temporary_channel_id_arg->arr_len == 32);
-       memcpy(temporary_channel_id_arg_ref.data, temporary_channel_id_arg->elems, 32);
+       memcpy(temporary_channel_id_arg_ref.data, temporary_channel_id_arg->elems, 32); FREE(temporary_channel_id_arg);
        LDKThirtyTwoBytes funding_txid_arg_ref;
        CHECK(funding_txid_arg->arr_len == 32);
-       memcpy(funding_txid_arg_ref.data, funding_txid_arg->elems, 32);
+       memcpy(funding_txid_arg_ref.data, funding_txid_arg->elems, 32); FREE(funding_txid_arg);
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKFundingCreated ret_var = FundingCreated_new(temporary_channel_id_arg_ref, funding_txid_arg_ref, funding_output_index_arg, signature_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23584,22 +23597,22 @@ uint32_t  __attribute__((export_name("TS_FundingCreated_new"))) TS_FundingCreate
 
 static inline uintptr_t FundingCreated_clone_ptr(LDKFundingCreated *NONNULL_PTR arg) {
        LDKFundingCreated ret_var = FundingCreated_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_FundingCreated_clone_ptr"))) TS_FundingCreated_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_FundingCreated_clone_ptr"))) TS_FundingCreated_clone_ptr(uint32_t arg) {
        LDKFundingCreated arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = FundingCreated_clone_ptr(&arg_conv);
+       intptr_t ret_val = FundingCreated_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23609,11 +23622,11 @@ uint32_t  __attribute__((export_name("TS_FundingCreated_clone"))) TS_FundingCrea
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKFundingCreated ret_var = FundingCreated_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23633,7 +23646,7 @@ int8_tArray  __attribute__((export_name("TS_FundingSigned_get_channel_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *FundingSigned_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23645,7 +23658,7 @@ void  __attribute__((export_name("TS_FundingSigned_set_channel_id"))) TS_Funding
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        FundingSigned_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -23654,7 +23667,7 @@ int8_tArray  __attribute__((export_name("TS_FundingSigned_get_signature"))) TS_F
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, FundingSigned_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -23666,23 +23679,23 @@ void  __attribute__((export_name("TS_FundingSigned_set_signature"))) TS_FundingS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        FundingSigned_set_signature(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_FundingSigned_new"))) TS_FundingSigned_new(int8_tArray channel_id_arg, int8_tArray signature_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKFundingSigned ret_var = FundingSigned_new(channel_id_arg_ref, signature_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23691,22 +23704,22 @@ uint32_t  __attribute__((export_name("TS_FundingSigned_new"))) TS_FundingSigned_
 
 static inline uintptr_t FundingSigned_clone_ptr(LDKFundingSigned *NONNULL_PTR arg) {
        LDKFundingSigned ret_var = FundingSigned_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_FundingSigned_clone_ptr"))) TS_FundingSigned_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_FundingSigned_clone_ptr"))) TS_FundingSigned_clone_ptr(uint32_t arg) {
        LDKFundingSigned arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = FundingSigned_clone_ptr(&arg_conv);
+       intptr_t ret_val = FundingSigned_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23716,11 +23729,11 @@ uint32_t  __attribute__((export_name("TS_FundingSigned_clone"))) TS_FundingSigne
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKFundingSigned ret_var = FundingSigned_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23740,7 +23753,7 @@ int8_tArray  __attribute__((export_name("TS_FundingLocked_get_channel_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *FundingLocked_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23752,7 +23765,7 @@ void  __attribute__((export_name("TS_FundingLocked_set_channel_id"))) TS_Funding
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        FundingLocked_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -23761,7 +23774,7 @@ int8_tArray  __attribute__((export_name("TS_FundingLocked_get_next_per_commitmen
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, FundingLocked_get_next_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -23773,23 +23786,23 @@ void  __attribute__((export_name("TS_FundingLocked_set_next_per_commitment_point
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        FundingLocked_set_next_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_FundingLocked_new"))) TS_FundingLocked_new(int8_tArray channel_id_arg, int8_tArray next_per_commitment_point_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKPublicKey next_per_commitment_point_arg_ref;
        CHECK(next_per_commitment_point_arg->arr_len == 33);
-       memcpy(next_per_commitment_point_arg_ref.compressed_form, next_per_commitment_point_arg->elems, 33);
+       memcpy(next_per_commitment_point_arg_ref.compressed_form, next_per_commitment_point_arg->elems, 33); FREE(next_per_commitment_point_arg);
        LDKFundingLocked ret_var = FundingLocked_new(channel_id_arg_ref, next_per_commitment_point_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23798,22 +23811,22 @@ uint32_t  __attribute__((export_name("TS_FundingLocked_new"))) TS_FundingLocked_
 
 static inline uintptr_t FundingLocked_clone_ptr(LDKFundingLocked *NONNULL_PTR arg) {
        LDKFundingLocked ret_var = FundingLocked_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_FundingLocked_clone_ptr"))) TS_FundingLocked_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_FundingLocked_clone_ptr"))) TS_FundingLocked_clone_ptr(uint32_t arg) {
        LDKFundingLocked arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = FundingLocked_clone_ptr(&arg_conv);
+       intptr_t ret_val = FundingLocked_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23823,11 +23836,11 @@ uint32_t  __attribute__((export_name("TS_FundingLocked_clone"))) TS_FundingLocke
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKFundingLocked ret_var = FundingLocked_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23847,7 +23860,7 @@ int8_tArray  __attribute__((export_name("TS_Shutdown_get_channel_id"))) TS_Shutd
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *Shutdown_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -23859,7 +23872,7 @@ void  __attribute__((export_name("TS_Shutdown_set_channel_id"))) TS_Shutdown_set
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        Shutdown_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -23869,7 +23882,7 @@ int8_tArray  __attribute__((export_name("TS_Shutdown_get_scriptpubkey"))) TS_Shu
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKu8slice ret_var = Shutdown_get_scriptpubkey(&this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -23882,24 +23895,24 @@ void  __attribute__((export_name("TS_Shutdown_set_scriptpubkey"))) TS_Shutdown_s
        LDKCVec_u8Z val_ref;
        val_ref.datalen = val->arr_len;
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(val_ref.data, val->elems, val_ref.datalen);
+       memcpy(val_ref.data, val->elems, val_ref.datalen); FREE(val);
        Shutdown_set_scriptpubkey(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_Shutdown_new"))) TS_Shutdown_new(int8_tArray channel_id_arg, int8_tArray scriptpubkey_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKCVec_u8Z scriptpubkey_arg_ref;
        scriptpubkey_arg_ref.datalen = scriptpubkey_arg->arr_len;
        scriptpubkey_arg_ref.data = MALLOC(scriptpubkey_arg_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(scriptpubkey_arg_ref.data, scriptpubkey_arg->elems, scriptpubkey_arg_ref.datalen);
+       memcpy(scriptpubkey_arg_ref.data, scriptpubkey_arg->elems, scriptpubkey_arg_ref.datalen); FREE(scriptpubkey_arg);
        LDKShutdown ret_var = Shutdown_new(channel_id_arg_ref, scriptpubkey_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23908,22 +23921,22 @@ uint32_t  __attribute__((export_name("TS_Shutdown_new"))) TS_Shutdown_new(int8_t
 
 static inline uintptr_t Shutdown_clone_ptr(LDKShutdown *NONNULL_PTR arg) {
        LDKShutdown ret_var = Shutdown_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Shutdown_clone_ptr"))) TS_Shutdown_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Shutdown_clone_ptr"))) TS_Shutdown_clone_ptr(uint32_t arg) {
        LDKShutdown arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Shutdown_clone_ptr(&arg_conv);
+       intptr_t ret_val = Shutdown_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -23933,11 +23946,11 @@ uint32_t  __attribute__((export_name("TS_Shutdown_clone"))) TS_Shutdown_clone(ui
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKShutdown ret_var = Shutdown_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -23988,11 +24001,11 @@ void  __attribute__((export_name("TS_ClosingSignedFeeRange_set_max_fee_satoshis"
 
 uint32_t  __attribute__((export_name("TS_ClosingSignedFeeRange_new"))) TS_ClosingSignedFeeRange_new(int64_t min_fee_satoshis_arg, int64_t max_fee_satoshis_arg) {
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_new(min_fee_satoshis_arg, max_fee_satoshis_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24001,22 +24014,22 @@ uint32_t  __attribute__((export_name("TS_ClosingSignedFeeRange_new"))) TS_Closin
 
 static inline uintptr_t ClosingSignedFeeRange_clone_ptr(LDKClosingSignedFeeRange *NONNULL_PTR arg) {
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ClosingSignedFeeRange_clone_ptr"))) TS_ClosingSignedFeeRange_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ClosingSignedFeeRange_clone_ptr"))) TS_ClosingSignedFeeRange_clone_ptr(uint32_t arg) {
        LDKClosingSignedFeeRange arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ClosingSignedFeeRange_clone_ptr(&arg_conv);
+       intptr_t ret_val = ClosingSignedFeeRange_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24026,11 +24039,11 @@ uint32_t  __attribute__((export_name("TS_ClosingSignedFeeRange_clone"))) TS_Clos
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24050,7 +24063,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingSigned_get_channel_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ClosingSigned_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24062,7 +24075,7 @@ void  __attribute__((export_name("TS_ClosingSigned_set_channel_id"))) TS_Closing
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ClosingSigned_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24088,7 +24101,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingSigned_get_signature"))) TS_C
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ClosingSigned_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -24100,7 +24113,7 @@ void  __attribute__((export_name("TS_ClosingSigned_set_signature"))) TS_ClosingS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ClosingSigned_set_signature(&this_ptr_conv, val_ref);
 }
 
@@ -24110,12 +24123,12 @@ uint32_t  __attribute__((export_name("TS_ClosingSigned_get_fee_range"))) TS_Clos
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKClosingSignedFeeRange ret_var = ClosingSigned_get_fee_range(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -24139,21 +24152,21 @@ void  __attribute__((export_name("TS_ClosingSigned_set_fee_range"))) TS_ClosingS
 uint32_t  __attribute__((export_name("TS_ClosingSigned_new"))) TS_ClosingSigned_new(int8_tArray channel_id_arg, int64_t fee_satoshis_arg, int8_tArray signature_arg, uint32_t fee_range_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKClosingSignedFeeRange fee_range_arg_conv;
        fee_range_arg_conv.inner = (void*)(fee_range_arg & (~1));
        fee_range_arg_conv.is_owned = (fee_range_arg & 1) || (fee_range_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(fee_range_arg_conv);
        fee_range_arg_conv = ClosingSignedFeeRange_clone(&fee_range_arg_conv);
        LDKClosingSigned ret_var = ClosingSigned_new(channel_id_arg_ref, fee_satoshis_arg, signature_arg_ref, fee_range_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24162,22 +24175,22 @@ uint32_t  __attribute__((export_name("TS_ClosingSigned_new"))) TS_ClosingSigned_
 
 static inline uintptr_t ClosingSigned_clone_ptr(LDKClosingSigned *NONNULL_PTR arg) {
        LDKClosingSigned ret_var = ClosingSigned_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ClosingSigned_clone_ptr"))) TS_ClosingSigned_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ClosingSigned_clone_ptr"))) TS_ClosingSigned_clone_ptr(uint32_t arg) {
        LDKClosingSigned arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ClosingSigned_clone_ptr(&arg_conv);
+       intptr_t ret_val = ClosingSigned_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24187,11 +24200,11 @@ uint32_t  __attribute__((export_name("TS_ClosingSigned_clone"))) TS_ClosingSigne
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKClosingSigned ret_var = ClosingSigned_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24211,7 +24224,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateAddHTLC_get_channel_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateAddHTLC_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24223,7 +24236,7 @@ void  __attribute__((export_name("TS_UpdateAddHTLC_set_channel_id"))) TS_UpdateA
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateAddHTLC_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24266,7 +24279,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateAddHTLC_get_payment_hash"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateAddHTLC_get_payment_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24278,7 +24291,7 @@ void  __attribute__((export_name("TS_UpdateAddHTLC_set_payment_hash"))) TS_Updat
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateAddHTLC_set_payment_hash(&this_ptr_conv, val_ref);
 }
 
@@ -24301,22 +24314,22 @@ void  __attribute__((export_name("TS_UpdateAddHTLC_set_cltv_expiry"))) TS_Update
 
 static inline uintptr_t UpdateAddHTLC_clone_ptr(LDKUpdateAddHTLC *NONNULL_PTR arg) {
        LDKUpdateAddHTLC ret_var = UpdateAddHTLC_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UpdateAddHTLC_clone_ptr"))) TS_UpdateAddHTLC_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UpdateAddHTLC_clone_ptr"))) TS_UpdateAddHTLC_clone_ptr(uint32_t arg) {
        LDKUpdateAddHTLC arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UpdateAddHTLC_clone_ptr(&arg_conv);
+       intptr_t ret_val = UpdateAddHTLC_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24326,11 +24339,11 @@ uint32_t  __attribute__((export_name("TS_UpdateAddHTLC_clone"))) TS_UpdateAddHTL
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUpdateAddHTLC ret_var = UpdateAddHTLC_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24350,7 +24363,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFulfillHTLC_get_channel_id")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateFulfillHTLC_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24362,7 +24375,7 @@ void  __attribute__((export_name("TS_UpdateFulfillHTLC_set_channel_id"))) TS_Upd
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateFulfillHTLC_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24388,7 +24401,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFulfillHTLC_get_payment_preima
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateFulfillHTLC_get_payment_preimage(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24400,23 +24413,23 @@ void  __attribute__((export_name("TS_UpdateFulfillHTLC_set_payment_preimage")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateFulfillHTLC_set_payment_preimage(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_UpdateFulfillHTLC_new"))) TS_UpdateFulfillHTLC_new(int8_tArray channel_id_arg, int64_t htlc_id_arg, int8_tArray payment_preimage_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKThirtyTwoBytes payment_preimage_arg_ref;
        CHECK(payment_preimage_arg->arr_len == 32);
-       memcpy(payment_preimage_arg_ref.data, payment_preimage_arg->elems, 32);
+       memcpy(payment_preimage_arg_ref.data, payment_preimage_arg->elems, 32); FREE(payment_preimage_arg);
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_new(channel_id_arg_ref, htlc_id_arg, payment_preimage_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24425,22 +24438,22 @@ uint32_t  __attribute__((export_name("TS_UpdateFulfillHTLC_new"))) TS_UpdateFulf
 
 static inline uintptr_t UpdateFulfillHTLC_clone_ptr(LDKUpdateFulfillHTLC *NONNULL_PTR arg) {
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UpdateFulfillHTLC_clone_ptr"))) TS_UpdateFulfillHTLC_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UpdateFulfillHTLC_clone_ptr"))) TS_UpdateFulfillHTLC_clone_ptr(uint32_t arg) {
        LDKUpdateFulfillHTLC arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UpdateFulfillHTLC_clone_ptr(&arg_conv);
+       intptr_t ret_val = UpdateFulfillHTLC_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24450,11 +24463,11 @@ uint32_t  __attribute__((export_name("TS_UpdateFulfillHTLC_clone"))) TS_UpdateFu
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24474,7 +24487,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailHTLC_get_channel_id"))) TS
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateFailHTLC_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24486,7 +24499,7 @@ void  __attribute__((export_name("TS_UpdateFailHTLC_set_channel_id"))) TS_Update
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateFailHTLC_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24509,22 +24522,22 @@ void  __attribute__((export_name("TS_UpdateFailHTLC_set_htlc_id"))) TS_UpdateFai
 
 static inline uintptr_t UpdateFailHTLC_clone_ptr(LDKUpdateFailHTLC *NONNULL_PTR arg) {
        LDKUpdateFailHTLC ret_var = UpdateFailHTLC_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UpdateFailHTLC_clone_ptr"))) TS_UpdateFailHTLC_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UpdateFailHTLC_clone_ptr"))) TS_UpdateFailHTLC_clone_ptr(uint32_t arg) {
        LDKUpdateFailHTLC arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UpdateFailHTLC_clone_ptr(&arg_conv);
+       intptr_t ret_val = UpdateFailHTLC_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24534,11 +24547,11 @@ uint32_t  __attribute__((export_name("TS_UpdateFailHTLC_clone"))) TS_UpdateFailH
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUpdateFailHTLC ret_var = UpdateFailHTLC_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24558,7 +24571,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailMalformedHTLC_get_channel_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateFailMalformedHTLC_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24570,7 +24583,7 @@ void  __attribute__((export_name("TS_UpdateFailMalformedHTLC_set_channel_id")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateFailMalformedHTLC_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24610,22 +24623,22 @@ void  __attribute__((export_name("TS_UpdateFailMalformedHTLC_set_failure_code"))
 
 static inline uintptr_t UpdateFailMalformedHTLC_clone_ptr(LDKUpdateFailMalformedHTLC *NONNULL_PTR arg) {
        LDKUpdateFailMalformedHTLC ret_var = UpdateFailMalformedHTLC_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UpdateFailMalformedHTLC_clone_ptr"))) TS_UpdateFailMalformedHTLC_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UpdateFailMalformedHTLC_clone_ptr"))) TS_UpdateFailMalformedHTLC_clone_ptr(uint32_t arg) {
        LDKUpdateFailMalformedHTLC arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UpdateFailMalformedHTLC_clone_ptr(&arg_conv);
+       intptr_t ret_val = UpdateFailMalformedHTLC_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24635,11 +24648,11 @@ uint32_t  __attribute__((export_name("TS_UpdateFailMalformedHTLC_clone"))) TS_Up
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUpdateFailMalformedHTLC ret_var = UpdateFailMalformedHTLC_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24659,7 +24672,7 @@ int8_tArray  __attribute__((export_name("TS_CommitmentSigned_get_channel_id")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *CommitmentSigned_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24671,7 +24684,7 @@ void  __attribute__((export_name("TS_CommitmentSigned_set_channel_id"))) TS_Comm
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        CommitmentSigned_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24680,7 +24693,7 @@ int8_tArray  __attribute__((export_name("TS_CommitmentSigned_get_signature"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, CommitmentSigned_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -24692,7 +24705,7 @@ void  __attribute__((export_name("TS_CommitmentSigned_set_signature"))) TS_Commi
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        CommitmentSigned_set_signature(&this_ptr_conv, val_ref);
 }
 
@@ -24707,12 +24720,12 @@ void  __attribute__((export_name("TS_CommitmentSigned_set_htlc_signatures"))) TS
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                val_constr.data = NULL;
-       int8_tArray* val_vals = (void*) val->elems;
+       int8_tArray* val_vals = (void*) val->elems /* XXX val leaks */;
        for (size_t m = 0; m < val_constr.datalen; m++) {
                int8_tArray val_conv_12 = val_vals[m];
                LDKSignature val_conv_12_ref;
                CHECK(val_conv_12->arr_len == 64);
-               memcpy(val_conv_12_ref.compact_form, val_conv_12->elems, 64);
+               memcpy(val_conv_12_ref.compact_form, val_conv_12->elems, 64); FREE(val_conv_12);
                val_constr.data[m] = val_conv_12_ref;
        }
        CommitmentSigned_set_htlc_signatures(&this_ptr_conv, val_constr);
@@ -24721,30 +24734,30 @@ void  __attribute__((export_name("TS_CommitmentSigned_set_htlc_signatures"))) TS
 uint32_t  __attribute__((export_name("TS_CommitmentSigned_new"))) TS_CommitmentSigned_new(int8_tArray channel_id_arg, int8_tArray signature_arg, ptrArray htlc_signatures_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKCVec_SignatureZ htlc_signatures_arg_constr;
        htlc_signatures_arg_constr.datalen = htlc_signatures_arg->arr_len;
        if (htlc_signatures_arg_constr.datalen > 0)
                htlc_signatures_arg_constr.data = MALLOC(htlc_signatures_arg_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                htlc_signatures_arg_constr.data = NULL;
-       int8_tArray* htlc_signatures_arg_vals = (void*) htlc_signatures_arg->elems;
+       int8_tArray* htlc_signatures_arg_vals = (void*) htlc_signatures_arg->elems /* XXX htlc_signatures_arg leaks */;
        for (size_t m = 0; m < htlc_signatures_arg_constr.datalen; m++) {
                int8_tArray htlc_signatures_arg_conv_12 = htlc_signatures_arg_vals[m];
                LDKSignature htlc_signatures_arg_conv_12_ref;
                CHECK(htlc_signatures_arg_conv_12->arr_len == 64);
-               memcpy(htlc_signatures_arg_conv_12_ref.compact_form, htlc_signatures_arg_conv_12->elems, 64);
+               memcpy(htlc_signatures_arg_conv_12_ref.compact_form, htlc_signatures_arg_conv_12->elems, 64); FREE(htlc_signatures_arg_conv_12);
                htlc_signatures_arg_constr.data[m] = htlc_signatures_arg_conv_12_ref;
        }
        LDKCommitmentSigned ret_var = CommitmentSigned_new(channel_id_arg_ref, signature_arg_ref, htlc_signatures_arg_constr);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24753,22 +24766,22 @@ uint32_t  __attribute__((export_name("TS_CommitmentSigned_new"))) TS_CommitmentS
 
 static inline uintptr_t CommitmentSigned_clone_ptr(LDKCommitmentSigned *NONNULL_PTR arg) {
        LDKCommitmentSigned ret_var = CommitmentSigned_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_CommitmentSigned_clone_ptr"))) TS_CommitmentSigned_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CommitmentSigned_clone_ptr"))) TS_CommitmentSigned_clone_ptr(uint32_t arg) {
        LDKCommitmentSigned arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = CommitmentSigned_clone_ptr(&arg_conv);
+       intptr_t ret_val = CommitmentSigned_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24778,11 +24791,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentSigned_clone"))) TS_Commitmen
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKCommitmentSigned ret_var = CommitmentSigned_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24802,7 +24815,7 @@ int8_tArray  __attribute__((export_name("TS_RevokeAndACK_get_channel_id"))) TS_R
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *RevokeAndACK_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24814,7 +24827,7 @@ void  __attribute__((export_name("TS_RevokeAndACK_set_channel_id"))) TS_RevokeAn
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        RevokeAndACK_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24823,7 +24836,7 @@ int8_tArray  __attribute__((export_name("TS_RevokeAndACK_get_per_commitment_secr
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *RevokeAndACK_get_per_commitment_secret(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24835,7 +24848,7 @@ void  __attribute__((export_name("TS_RevokeAndACK_set_per_commitment_secret")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        RevokeAndACK_set_per_commitment_secret(&this_ptr_conv, val_ref);
 }
 
@@ -24844,7 +24857,7 @@ int8_tArray  __attribute__((export_name("TS_RevokeAndACK_get_next_per_commitment
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, RevokeAndACK_get_next_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -24856,26 +24869,26 @@ void  __attribute__((export_name("TS_RevokeAndACK_set_next_per_commitment_point"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        RevokeAndACK_set_next_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_RevokeAndACK_new"))) TS_RevokeAndACK_new(int8_tArray channel_id_arg, int8_tArray per_commitment_secret_arg, int8_tArray next_per_commitment_point_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKThirtyTwoBytes per_commitment_secret_arg_ref;
        CHECK(per_commitment_secret_arg->arr_len == 32);
-       memcpy(per_commitment_secret_arg_ref.data, per_commitment_secret_arg->elems, 32);
+       memcpy(per_commitment_secret_arg_ref.data, per_commitment_secret_arg->elems, 32); FREE(per_commitment_secret_arg);
        LDKPublicKey next_per_commitment_point_arg_ref;
        CHECK(next_per_commitment_point_arg->arr_len == 33);
-       memcpy(next_per_commitment_point_arg_ref.compressed_form, next_per_commitment_point_arg->elems, 33);
+       memcpy(next_per_commitment_point_arg_ref.compressed_form, next_per_commitment_point_arg->elems, 33); FREE(next_per_commitment_point_arg);
        LDKRevokeAndACK ret_var = RevokeAndACK_new(channel_id_arg_ref, per_commitment_secret_arg_ref, next_per_commitment_point_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24884,22 +24897,22 @@ uint32_t  __attribute__((export_name("TS_RevokeAndACK_new"))) TS_RevokeAndACK_ne
 
 static inline uintptr_t RevokeAndACK_clone_ptr(LDKRevokeAndACK *NONNULL_PTR arg) {
        LDKRevokeAndACK ret_var = RevokeAndACK_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RevokeAndACK_clone_ptr"))) TS_RevokeAndACK_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RevokeAndACK_clone_ptr"))) TS_RevokeAndACK_clone_ptr(uint32_t arg) {
        LDKRevokeAndACK arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RevokeAndACK_clone_ptr(&arg_conv);
+       intptr_t ret_val = RevokeAndACK_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -24909,11 +24922,11 @@ uint32_t  __attribute__((export_name("TS_RevokeAndACK_clone"))) TS_RevokeAndACK_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRevokeAndACK ret_var = RevokeAndACK_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24933,7 +24946,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFee_get_channel_id"))) TS_Upda
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UpdateFee_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -24945,7 +24958,7 @@ void  __attribute__((export_name("TS_UpdateFee_set_channel_id"))) TS_UpdateFee_s
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UpdateFee_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -24969,13 +24982,13 @@ void  __attribute__((export_name("TS_UpdateFee_set_feerate_per_kw"))) TS_UpdateF
 uint32_t  __attribute__((export_name("TS_UpdateFee_new"))) TS_UpdateFee_new(int8_tArray channel_id_arg, int32_t feerate_per_kw_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKUpdateFee ret_var = UpdateFee_new(channel_id_arg_ref, feerate_per_kw_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -24984,22 +24997,22 @@ uint32_t  __attribute__((export_name("TS_UpdateFee_new"))) TS_UpdateFee_new(int8
 
 static inline uintptr_t UpdateFee_clone_ptr(LDKUpdateFee *NONNULL_PTR arg) {
        LDKUpdateFee ret_var = UpdateFee_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UpdateFee_clone_ptr"))) TS_UpdateFee_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UpdateFee_clone_ptr"))) TS_UpdateFee_clone_ptr(uint32_t arg) {
        LDKUpdateFee arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UpdateFee_clone_ptr(&arg_conv);
+       intptr_t ret_val = UpdateFee_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25009,11 +25022,11 @@ uint32_t  __attribute__((export_name("TS_UpdateFee_clone"))) TS_UpdateFee_clone(
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUpdateFee ret_var = UpdateFee_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25033,7 +25046,7 @@ int8_tArray  __attribute__((export_name("TS_DataLossProtect_get_your_last_per_co
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *DataLossProtect_get_your_last_per_commitment_secret(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -25045,7 +25058,7 @@ void  __attribute__((export_name("TS_DataLossProtect_set_your_last_per_commitmen
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        DataLossProtect_set_your_last_per_commitment_secret(&this_ptr_conv, val_ref);
 }
 
@@ -25054,7 +25067,7 @@ int8_tArray  __attribute__((export_name("TS_DataLossProtect_get_my_current_per_c
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, DataLossProtect_get_my_current_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25066,23 +25079,23 @@ void  __attribute__((export_name("TS_DataLossProtect_set_my_current_per_commitme
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        DataLossProtect_set_my_current_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_DataLossProtect_new"))) TS_DataLossProtect_new(int8_tArray your_last_per_commitment_secret_arg, int8_tArray my_current_per_commitment_point_arg) {
        LDKThirtyTwoBytes your_last_per_commitment_secret_arg_ref;
        CHECK(your_last_per_commitment_secret_arg->arr_len == 32);
-       memcpy(your_last_per_commitment_secret_arg_ref.data, your_last_per_commitment_secret_arg->elems, 32);
+       memcpy(your_last_per_commitment_secret_arg_ref.data, your_last_per_commitment_secret_arg->elems, 32); FREE(your_last_per_commitment_secret_arg);
        LDKPublicKey my_current_per_commitment_point_arg_ref;
        CHECK(my_current_per_commitment_point_arg->arr_len == 33);
-       memcpy(my_current_per_commitment_point_arg_ref.compressed_form, my_current_per_commitment_point_arg->elems, 33);
+       memcpy(my_current_per_commitment_point_arg_ref.compressed_form, my_current_per_commitment_point_arg->elems, 33); FREE(my_current_per_commitment_point_arg);
        LDKDataLossProtect ret_var = DataLossProtect_new(your_last_per_commitment_secret_arg_ref, my_current_per_commitment_point_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25091,22 +25104,22 @@ uint32_t  __attribute__((export_name("TS_DataLossProtect_new"))) TS_DataLossProt
 
 static inline uintptr_t DataLossProtect_clone_ptr(LDKDataLossProtect *NONNULL_PTR arg) {
        LDKDataLossProtect ret_var = DataLossProtect_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_DataLossProtect_clone_ptr"))) TS_DataLossProtect_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_DataLossProtect_clone_ptr"))) TS_DataLossProtect_clone_ptr(uint32_t arg) {
        LDKDataLossProtect arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = DataLossProtect_clone_ptr(&arg_conv);
+       intptr_t ret_val = DataLossProtect_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25116,11 +25129,11 @@ uint32_t  __attribute__((export_name("TS_DataLossProtect_clone"))) TS_DataLossPr
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKDataLossProtect ret_var = DataLossProtect_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25140,7 +25153,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelReestablish_get_channel_id"))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ChannelReestablish_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -25152,7 +25165,7 @@ void  __attribute__((export_name("TS_ChannelReestablish_set_channel_id"))) TS_Ch
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ChannelReestablish_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -25192,22 +25205,22 @@ void  __attribute__((export_name("TS_ChannelReestablish_set_next_remote_commitme
 
 static inline uintptr_t ChannelReestablish_clone_ptr(LDKChannelReestablish *NONNULL_PTR arg) {
        LDKChannelReestablish ret_var = ChannelReestablish_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelReestablish_clone_ptr"))) TS_ChannelReestablish_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelReestablish_clone_ptr"))) TS_ChannelReestablish_clone_ptr(uint32_t arg) {
        LDKChannelReestablish arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelReestablish_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelReestablish_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25217,11 +25230,11 @@ uint32_t  __attribute__((export_name("TS_ChannelReestablish_clone"))) TS_Channel
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelReestablish ret_var = ChannelReestablish_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25241,7 +25254,7 @@ int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_get_channel_i
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *AnnouncementSignatures_get_channel_id(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -25253,7 +25266,7 @@ void  __attribute__((export_name("TS_AnnouncementSignatures_set_channel_id"))) T
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        AnnouncementSignatures_set_channel_id(&this_ptr_conv, val_ref);
 }
 
@@ -25279,7 +25292,7 @@ int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_get_node_sign
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, AnnouncementSignatures_get_node_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -25291,7 +25304,7 @@ void  __attribute__((export_name("TS_AnnouncementSignatures_set_node_signature")
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        AnnouncementSignatures_set_node_signature(&this_ptr_conv, val_ref);
 }
 
@@ -25300,7 +25313,7 @@ int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_get_bitcoin_s
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, AnnouncementSignatures_get_bitcoin_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -25312,26 +25325,26 @@ void  __attribute__((export_name("TS_AnnouncementSignatures_set_bitcoin_signatur
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        AnnouncementSignatures_set_bitcoin_signature(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_AnnouncementSignatures_new"))) TS_AnnouncementSignatures_new(int8_tArray channel_id_arg, int64_t short_channel_id_arg, int8_tArray node_signature_arg, int8_tArray bitcoin_signature_arg) {
        LDKThirtyTwoBytes channel_id_arg_ref;
        CHECK(channel_id_arg->arr_len == 32);
-       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32);
+       memcpy(channel_id_arg_ref.data, channel_id_arg->elems, 32); FREE(channel_id_arg);
        LDKSignature node_signature_arg_ref;
        CHECK(node_signature_arg->arr_len == 64);
-       memcpy(node_signature_arg_ref.compact_form, node_signature_arg->elems, 64);
+       memcpy(node_signature_arg_ref.compact_form, node_signature_arg->elems, 64); FREE(node_signature_arg);
        LDKSignature bitcoin_signature_arg_ref;
        CHECK(bitcoin_signature_arg->arr_len == 64);
-       memcpy(bitcoin_signature_arg_ref.compact_form, bitcoin_signature_arg->elems, 64);
+       memcpy(bitcoin_signature_arg_ref.compact_form, bitcoin_signature_arg->elems, 64); FREE(bitcoin_signature_arg);
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_new(channel_id_arg_ref, short_channel_id_arg, node_signature_arg_ref, bitcoin_signature_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25340,22 +25353,22 @@ uint32_t  __attribute__((export_name("TS_AnnouncementSignatures_new"))) TS_Annou
 
 static inline uintptr_t AnnouncementSignatures_clone_ptr(LDKAnnouncementSignatures *NONNULL_PTR arg) {
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_AnnouncementSignatures_clone_ptr"))) TS_AnnouncementSignatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_AnnouncementSignatures_clone_ptr"))) TS_AnnouncementSignatures_clone_ptr(uint32_t arg) {
        LDKAnnouncementSignatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = AnnouncementSignatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = AnnouncementSignatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25365,11 +25378,11 @@ uint32_t  __attribute__((export_name("TS_AnnouncementSignatures_clone"))) TS_Ann
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25378,7 +25391,7 @@ uint32_t  __attribute__((export_name("TS_AnnouncementSignatures_clone"))) TS_Ann
 
 void  __attribute__((export_name("TS_NetAddress_free"))) TS_NetAddress_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKNetAddress this_ptr_conv = *(LDKNetAddress*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -25388,12 +25401,12 @@ void  __attribute__((export_name("TS_NetAddress_free"))) TS_NetAddress_free(uint
 static inline uintptr_t NetAddress_clone_ptr(LDKNetAddress *NONNULL_PTR arg) {
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NetAddress_clone_ptr"))) TS_NetAddress_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NetAddress_clone_ptr"))) TS_NetAddress_clone_ptr(uint32_t arg) {
        LDKNetAddress* arg_conv = (LDKNetAddress*)arg;
-       int64_t ret_val = NetAddress_clone_ptr(arg_conv);
+       intptr_t ret_val = NetAddress_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -25401,54 +25414,54 @@ uint32_t  __attribute__((export_name("TS_NetAddress_clone"))) TS_NetAddress_clon
        LDKNetAddress* orig_conv = (LDKNetAddress*)orig;
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetAddress_ipv4"))) TS_NetAddress_ipv4(int8_tArray addr, int16_t port) {
        LDKFourBytes addr_ref;
        CHECK(addr->arr_len == 4);
-       memcpy(addr_ref.data, addr->elems, 4);
+       memcpy(addr_ref.data, addr->elems, 4); FREE(addr);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_ipv4(addr_ref, port);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetAddress_ipv6"))) TS_NetAddress_ipv6(int8_tArray addr, int16_t port) {
        LDKSixteenBytes addr_ref;
        CHECK(addr->arr_len == 16);
-       memcpy(addr_ref.data, addr->elems, 16);
+       memcpy(addr_ref.data, addr->elems, 16); FREE(addr);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_ipv6(addr_ref, port);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetAddress_onion_v2"))) TS_NetAddress_onion_v2(int8_tArray a) {
        LDKTwelveBytes a_ref;
        CHECK(a->arr_len == 12);
-       memcpy(a_ref.data, a->elems, 12);
+       memcpy(a_ref.data, a->elems, 12); FREE(a);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_onion_v2(a_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetAddress_onion_v3"))) TS_NetAddress_onion_v3(int8_tArray ed25519_pubkey, int16_t checksum, int8_t version, int16_t port) {
        LDKThirtyTwoBytes ed25519_pubkey_ref;
        CHECK(ed25519_pubkey->arr_len == 32);
-       memcpy(ed25519_pubkey_ref.data, ed25519_pubkey->elems, 32);
+       memcpy(ed25519_pubkey_ref.data, ed25519_pubkey->elems, 32); FREE(ed25519_pubkey);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_onion_v3(ed25519_pubkey_ref, checksum, version, port);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_NetAddress_write"))) TS_NetAddress_write(uint32_t obj) {
        LDKNetAddress* obj_conv = (LDKNetAddress*)obj;
        LDKCVec_u8Z ret_var = NetAddress_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -25457,10 +25470,10 @@ int8_tArray  __attribute__((export_name("TS_NetAddress_write"))) TS_NetAddress_w
 uint32_t  __attribute__((export_name("TS_NetAddress_read"))) TS_NetAddress_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = NetAddress_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_free"))) TS_UnsignedNodeAnnouncement_free(uint32_t this_obj) {
@@ -25477,11 +25490,11 @@ uint32_t  __attribute__((export_name("TS_UnsignedNodeAnnouncement_get_features")
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeFeatures ret_var = UnsignedNodeAnnouncement_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25523,7 +25536,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_get_node_id
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, UnsignedNodeAnnouncement_get_node_id(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25535,7 +25548,7 @@ void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_set_node_id"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        UnsignedNodeAnnouncement_set_node_id(&this_ptr_conv, val_ref);
 }
 
@@ -25544,7 +25557,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_get_rgb")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(3);
+       int8_tArray ret_arr = init_int8_tArray(3, __LINE__);
        memcpy(ret_arr->elems, *UnsignedNodeAnnouncement_get_rgb(&this_ptr_conv), 3);
        return ret_arr;
 }
@@ -25556,7 +25569,7 @@ void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_set_rgb"))) TS_Uns
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThreeBytes val_ref;
        CHECK(val->arr_len == 3);
-       memcpy(val_ref.data, val->elems, 3);
+       memcpy(val_ref.data, val->elems, 3); FREE(val);
        UnsignedNodeAnnouncement_set_rgb(&this_ptr_conv, val_ref);
 }
 
@@ -25565,7 +25578,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_get_alias")
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UnsignedNodeAnnouncement_get_alias(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -25577,7 +25590,7 @@ void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_set_alias"))) TS_U
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UnsignedNodeAnnouncement_set_alias(&this_ptr_conv, val_ref);
 }
 
@@ -25592,13 +25605,13 @@ void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_set_addresses")))
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t m = 0; m < val_constr.datalen; m++) {
                uint32_t val_conv_12 = val_vals[m];
-               void* val_conv_12_ptr = (void*)(((uint64_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = (void*)(((uintptr_t)val_conv_12) & ~1);
                CHECK_ACCESS(val_conv_12_ptr);
                LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
-               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)val_conv_12) & ~1));
+               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)val_conv_12) & ~1));
                val_constr.data[m] = val_conv_12_conv;
        }
        UnsignedNodeAnnouncement_set_addresses(&this_ptr_conv, val_constr);
@@ -25606,22 +25619,22 @@ void  __attribute__((export_name("TS_UnsignedNodeAnnouncement_set_addresses")))
 
 static inline uintptr_t UnsignedNodeAnnouncement_clone_ptr(LDKUnsignedNodeAnnouncement *NONNULL_PTR arg) {
        LDKUnsignedNodeAnnouncement ret_var = UnsignedNodeAnnouncement_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UnsignedNodeAnnouncement_clone_ptr"))) TS_UnsignedNodeAnnouncement_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UnsignedNodeAnnouncement_clone_ptr"))) TS_UnsignedNodeAnnouncement_clone_ptr(uint32_t arg) {
        LDKUnsignedNodeAnnouncement arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UnsignedNodeAnnouncement_clone_ptr(&arg_conv);
+       intptr_t ret_val = UnsignedNodeAnnouncement_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25631,11 +25644,11 @@ uint32_t  __attribute__((export_name("TS_UnsignedNodeAnnouncement_clone"))) TS_U
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUnsignedNodeAnnouncement ret_var = UnsignedNodeAnnouncement_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25655,7 +25668,7 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncement_get_signature"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, NodeAnnouncement_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -25667,7 +25680,7 @@ void  __attribute__((export_name("TS_NodeAnnouncement_set_signature"))) TS_NodeA
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        NodeAnnouncement_set_signature(&this_ptr_conv, val_ref);
 }
 
@@ -25677,11 +25690,11 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncement_get_contents"))) TS_No
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKUnsignedNodeAnnouncement ret_var = NodeAnnouncement_get_contents(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25704,18 +25717,18 @@ void  __attribute__((export_name("TS_NodeAnnouncement_set_contents"))) TS_NodeAn
 uint32_t  __attribute__((export_name("TS_NodeAnnouncement_new"))) TS_NodeAnnouncement_new(int8_tArray signature_arg, uint32_t contents_arg) {
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKUnsignedNodeAnnouncement contents_arg_conv;
        contents_arg_conv.inner = (void*)(contents_arg & (~1));
        contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedNodeAnnouncement_clone(&contents_arg_conv);
        LDKNodeAnnouncement ret_var = NodeAnnouncement_new(signature_arg_ref, contents_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25724,22 +25737,22 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncement_new"))) TS_NodeAnnounc
 
 static inline uintptr_t NodeAnnouncement_clone_ptr(LDKNodeAnnouncement *NONNULL_PTR arg) {
        LDKNodeAnnouncement ret_var = NodeAnnouncement_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NodeAnnouncement_clone_ptr"))) TS_NodeAnnouncement_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NodeAnnouncement_clone_ptr"))) TS_NodeAnnouncement_clone_ptr(uint32_t arg) {
        LDKNodeAnnouncement arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NodeAnnouncement_clone_ptr(&arg_conv);
+       intptr_t ret_val = NodeAnnouncement_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25749,11 +25762,11 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncement_clone"))) TS_NodeAnnou
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNodeAnnouncement ret_var = NodeAnnouncement_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25774,11 +25787,11 @@ uint32_t  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_feature
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelFeatures ret_var = UnsignedChannelAnnouncement_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25803,7 +25816,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_chai
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UnsignedChannelAnnouncement_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -25815,7 +25828,7 @@ void  __attribute__((export_name("TS_UnsignedChannelAnnouncement_set_chain_hash"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UnsignedChannelAnnouncement_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -25841,7 +25854,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_node
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, UnsignedChannelAnnouncement_get_node_id_1(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25853,7 +25866,7 @@ void  __attribute__((export_name("TS_UnsignedChannelAnnouncement_set_node_id_1")
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        UnsignedChannelAnnouncement_set_node_id_1(&this_ptr_conv, val_ref);
 }
 
@@ -25862,7 +25875,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_node
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, UnsignedChannelAnnouncement_get_node_id_2(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25874,7 +25887,7 @@ void  __attribute__((export_name("TS_UnsignedChannelAnnouncement_set_node_id_2")
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        UnsignedChannelAnnouncement_set_node_id_2(&this_ptr_conv, val_ref);
 }
 
@@ -25883,7 +25896,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_bitc
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, UnsignedChannelAnnouncement_get_bitcoin_key_1(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25895,7 +25908,7 @@ void  __attribute__((export_name("TS_UnsignedChannelAnnouncement_set_bitcoin_key
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        UnsignedChannelAnnouncement_set_bitcoin_key_1(&this_ptr_conv, val_ref);
 }
 
@@ -25904,7 +25917,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_get_bitc
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, UnsignedChannelAnnouncement_get_bitcoin_key_2(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -25916,28 +25929,28 @@ void  __attribute__((export_name("TS_UnsignedChannelAnnouncement_set_bitcoin_key
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        UnsignedChannelAnnouncement_set_bitcoin_key_2(&this_ptr_conv, val_ref);
 }
 
 static inline uintptr_t UnsignedChannelAnnouncement_clone_ptr(LDKUnsignedChannelAnnouncement *NONNULL_PTR arg) {
        LDKUnsignedChannelAnnouncement ret_var = UnsignedChannelAnnouncement_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UnsignedChannelAnnouncement_clone_ptr"))) TS_UnsignedChannelAnnouncement_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UnsignedChannelAnnouncement_clone_ptr"))) TS_UnsignedChannelAnnouncement_clone_ptr(uint32_t arg) {
        LDKUnsignedChannelAnnouncement arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UnsignedChannelAnnouncement_clone_ptr(&arg_conv);
+       intptr_t ret_val = UnsignedChannelAnnouncement_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -25947,11 +25960,11 @@ uint32_t  __attribute__((export_name("TS_UnsignedChannelAnnouncement_clone"))) T
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUnsignedChannelAnnouncement ret_var = UnsignedChannelAnnouncement_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -25971,7 +25984,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_get_node_signatu
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ChannelAnnouncement_get_node_signature_1(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -25983,7 +25996,7 @@ void  __attribute__((export_name("TS_ChannelAnnouncement_set_node_signature_1"))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ChannelAnnouncement_set_node_signature_1(&this_ptr_conv, val_ref);
 }
 
@@ -25992,7 +26005,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_get_node_signatu
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ChannelAnnouncement_get_node_signature_2(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -26004,7 +26017,7 @@ void  __attribute__((export_name("TS_ChannelAnnouncement_set_node_signature_2"))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ChannelAnnouncement_set_node_signature_2(&this_ptr_conv, val_ref);
 }
 
@@ -26013,7 +26026,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_get_bitcoin_sign
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ChannelAnnouncement_get_bitcoin_signature_1(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -26025,7 +26038,7 @@ void  __attribute__((export_name("TS_ChannelAnnouncement_set_bitcoin_signature_1
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ChannelAnnouncement_set_bitcoin_signature_1(&this_ptr_conv, val_ref);
 }
 
@@ -26034,7 +26047,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_get_bitcoin_sign
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ChannelAnnouncement_get_bitcoin_signature_2(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -26046,7 +26059,7 @@ void  __attribute__((export_name("TS_ChannelAnnouncement_set_bitcoin_signature_2
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ChannelAnnouncement_set_bitcoin_signature_2(&this_ptr_conv, val_ref);
 }
 
@@ -26056,11 +26069,11 @@ uint32_t  __attribute__((export_name("TS_ChannelAnnouncement_get_contents"))) TS
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKUnsignedChannelAnnouncement ret_var = ChannelAnnouncement_get_contents(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26083,27 +26096,27 @@ void  __attribute__((export_name("TS_ChannelAnnouncement_set_contents"))) TS_Cha
 uint32_t  __attribute__((export_name("TS_ChannelAnnouncement_new"))) TS_ChannelAnnouncement_new(int8_tArray node_signature_1_arg, int8_tArray node_signature_2_arg, int8_tArray bitcoin_signature_1_arg, int8_tArray bitcoin_signature_2_arg, uint32_t contents_arg) {
        LDKSignature node_signature_1_arg_ref;
        CHECK(node_signature_1_arg->arr_len == 64);
-       memcpy(node_signature_1_arg_ref.compact_form, node_signature_1_arg->elems, 64);
+       memcpy(node_signature_1_arg_ref.compact_form, node_signature_1_arg->elems, 64); FREE(node_signature_1_arg);
        LDKSignature node_signature_2_arg_ref;
        CHECK(node_signature_2_arg->arr_len == 64);
-       memcpy(node_signature_2_arg_ref.compact_form, node_signature_2_arg->elems, 64);
+       memcpy(node_signature_2_arg_ref.compact_form, node_signature_2_arg->elems, 64); FREE(node_signature_2_arg);
        LDKSignature bitcoin_signature_1_arg_ref;
        CHECK(bitcoin_signature_1_arg->arr_len == 64);
-       memcpy(bitcoin_signature_1_arg_ref.compact_form, bitcoin_signature_1_arg->elems, 64);
+       memcpy(bitcoin_signature_1_arg_ref.compact_form, bitcoin_signature_1_arg->elems, 64); FREE(bitcoin_signature_1_arg);
        LDKSignature bitcoin_signature_2_arg_ref;
        CHECK(bitcoin_signature_2_arg->arr_len == 64);
-       memcpy(bitcoin_signature_2_arg_ref.compact_form, bitcoin_signature_2_arg->elems, 64);
+       memcpy(bitcoin_signature_2_arg_ref.compact_form, bitcoin_signature_2_arg->elems, 64); FREE(bitcoin_signature_2_arg);
        LDKUnsignedChannelAnnouncement contents_arg_conv;
        contents_arg_conv.inner = (void*)(contents_arg & (~1));
        contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedChannelAnnouncement_clone(&contents_arg_conv);
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_new(node_signature_1_arg_ref, node_signature_2_arg_ref, bitcoin_signature_1_arg_ref, bitcoin_signature_2_arg_ref, contents_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26112,22 +26125,22 @@ uint32_t  __attribute__((export_name("TS_ChannelAnnouncement_new"))) TS_ChannelA
 
 static inline uintptr_t ChannelAnnouncement_clone_ptr(LDKChannelAnnouncement *NONNULL_PTR arg) {
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelAnnouncement_clone_ptr"))) TS_ChannelAnnouncement_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelAnnouncement_clone_ptr"))) TS_ChannelAnnouncement_clone_ptr(uint32_t arg) {
        LDKChannelAnnouncement arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelAnnouncement_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelAnnouncement_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26137,11 +26150,11 @@ uint32_t  __attribute__((export_name("TS_ChannelAnnouncement_clone"))) TS_Channe
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26161,7 +26174,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelUpdate_get_chain_hash
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *UnsignedChannelUpdate_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26173,7 +26186,7 @@ void  __attribute__((export_name("TS_UnsignedChannelUpdate_set_chain_hash"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        UnsignedChannelUpdate_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -26298,22 +26311,22 @@ void  __attribute__((export_name("TS_UnsignedChannelUpdate_set_fee_proportional_
 
 static inline uintptr_t UnsignedChannelUpdate_clone_ptr(LDKUnsignedChannelUpdate *NONNULL_PTR arg) {
        LDKUnsignedChannelUpdate ret_var = UnsignedChannelUpdate_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_UnsignedChannelUpdate_clone_ptr"))) TS_UnsignedChannelUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_UnsignedChannelUpdate_clone_ptr"))) TS_UnsignedChannelUpdate_clone_ptr(uint32_t arg) {
        LDKUnsignedChannelUpdate arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = UnsignedChannelUpdate_clone_ptr(&arg_conv);
+       intptr_t ret_val = UnsignedChannelUpdate_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26323,11 +26336,11 @@ uint32_t  __attribute__((export_name("TS_UnsignedChannelUpdate_clone"))) TS_Unsi
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKUnsignedChannelUpdate ret_var = UnsignedChannelUpdate_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26347,7 +26360,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelUpdate_get_signature"))) TS_C
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, ChannelUpdate_get_signature(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -26359,7 +26372,7 @@ void  __attribute__((export_name("TS_ChannelUpdate_set_signature"))) TS_ChannelU
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        ChannelUpdate_set_signature(&this_ptr_conv, val_ref);
 }
 
@@ -26369,11 +26382,11 @@ uint32_t  __attribute__((export_name("TS_ChannelUpdate_get_contents"))) TS_Chann
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKUnsignedChannelUpdate ret_var = ChannelUpdate_get_contents(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26396,18 +26409,18 @@ void  __attribute__((export_name("TS_ChannelUpdate_set_contents"))) TS_ChannelUp
 uint32_t  __attribute__((export_name("TS_ChannelUpdate_new"))) TS_ChannelUpdate_new(int8_tArray signature_arg, uint32_t contents_arg) {
        LDKSignature signature_arg_ref;
        CHECK(signature_arg->arr_len == 64);
-       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64);
+       memcpy(signature_arg_ref.compact_form, signature_arg->elems, 64); FREE(signature_arg);
        LDKUnsignedChannelUpdate contents_arg_conv;
        contents_arg_conv.inner = (void*)(contents_arg & (~1));
        contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedChannelUpdate_clone(&contents_arg_conv);
        LDKChannelUpdate ret_var = ChannelUpdate_new(signature_arg_ref, contents_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26416,22 +26429,22 @@ uint32_t  __attribute__((export_name("TS_ChannelUpdate_new"))) TS_ChannelUpdate_
 
 static inline uintptr_t ChannelUpdate_clone_ptr(LDKChannelUpdate *NONNULL_PTR arg) {
        LDKChannelUpdate ret_var = ChannelUpdate_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelUpdate_clone_ptr"))) TS_ChannelUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelUpdate_clone_ptr"))) TS_ChannelUpdate_clone_ptr(uint32_t arg) {
        LDKChannelUpdate arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelUpdate_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelUpdate_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26441,11 +26454,11 @@ uint32_t  __attribute__((export_name("TS_ChannelUpdate_clone"))) TS_ChannelUpdat
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelUpdate ret_var = ChannelUpdate_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26465,7 +26478,7 @@ int8_tArray  __attribute__((export_name("TS_QueryChannelRange_get_chain_hash")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *QueryChannelRange_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26477,7 +26490,7 @@ void  __attribute__((export_name("TS_QueryChannelRange_set_chain_hash"))) TS_Que
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        QueryChannelRange_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -26518,13 +26531,13 @@ void  __attribute__((export_name("TS_QueryChannelRange_set_number_of_blocks")))
 uint32_t  __attribute__((export_name("TS_QueryChannelRange_new"))) TS_QueryChannelRange_new(int8_tArray chain_hash_arg, int32_t first_blocknum_arg, int32_t number_of_blocks_arg) {
        LDKThirtyTwoBytes chain_hash_arg_ref;
        CHECK(chain_hash_arg->arr_len == 32);
-       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32);
+       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32); FREE(chain_hash_arg);
        LDKQueryChannelRange ret_var = QueryChannelRange_new(chain_hash_arg_ref, first_blocknum_arg, number_of_blocks_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26533,22 +26546,22 @@ uint32_t  __attribute__((export_name("TS_QueryChannelRange_new"))) TS_QueryChann
 
 static inline uintptr_t QueryChannelRange_clone_ptr(LDKQueryChannelRange *NONNULL_PTR arg) {
        LDKQueryChannelRange ret_var = QueryChannelRange_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_QueryChannelRange_clone_ptr"))) TS_QueryChannelRange_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_QueryChannelRange_clone_ptr"))) TS_QueryChannelRange_clone_ptr(uint32_t arg) {
        LDKQueryChannelRange arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = QueryChannelRange_clone_ptr(&arg_conv);
+       intptr_t ret_val = QueryChannelRange_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26558,11 +26571,11 @@ uint32_t  __attribute__((export_name("TS_QueryChannelRange_clone"))) TS_QueryCha
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKQueryChannelRange ret_var = QueryChannelRange_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26582,7 +26595,7 @@ int8_tArray  __attribute__((export_name("TS_ReplyChannelRange_get_chain_hash")))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ReplyChannelRange_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26594,7 +26607,7 @@ void  __attribute__((export_name("TS_ReplyChannelRange_set_chain_hash"))) TS_Rep
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ReplyChannelRange_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -26660,7 +26673,7 @@ void  __attribute__((export_name("TS_ReplyChannelRange_set_short_channel_ids")))
                val_constr.data = MALLOC(val_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                val_constr.data = NULL;
-       int64_t* val_vals = val->elems;
+       int64_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t i = 0; i < val_constr.datalen; i++) {
                int64_t val_conv_8 = val_vals[i];
                val_constr.data[i] = val_conv_8;
@@ -26671,24 +26684,24 @@ void  __attribute__((export_name("TS_ReplyChannelRange_set_short_channel_ids")))
 uint32_t  __attribute__((export_name("TS_ReplyChannelRange_new"))) TS_ReplyChannelRange_new(int8_tArray chain_hash_arg, int32_t first_blocknum_arg, int32_t number_of_blocks_arg, jboolean sync_complete_arg, int64_tArray short_channel_ids_arg) {
        LDKThirtyTwoBytes chain_hash_arg_ref;
        CHECK(chain_hash_arg->arr_len == 32);
-       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32);
+       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32); FREE(chain_hash_arg);
        LDKCVec_u64Z short_channel_ids_arg_constr;
        short_channel_ids_arg_constr.datalen = short_channel_ids_arg->arr_len;
        if (short_channel_ids_arg_constr.datalen > 0)
                short_channel_ids_arg_constr.data = MALLOC(short_channel_ids_arg_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                short_channel_ids_arg_constr.data = NULL;
-       int64_t* short_channel_ids_arg_vals = short_channel_ids_arg->elems;
+       int64_t* short_channel_ids_arg_vals = short_channel_ids_arg->elems /* XXX short_channel_ids_arg leaks */;
        for (size_t i = 0; i < short_channel_ids_arg_constr.datalen; i++) {
                int64_t short_channel_ids_arg_conv_8 = short_channel_ids_arg_vals[i];
                short_channel_ids_arg_constr.data[i] = short_channel_ids_arg_conv_8;
        }
        LDKReplyChannelRange ret_var = ReplyChannelRange_new(chain_hash_arg_ref, first_blocknum_arg, number_of_blocks_arg, sync_complete_arg, short_channel_ids_arg_constr);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26697,22 +26710,22 @@ uint32_t  __attribute__((export_name("TS_ReplyChannelRange_new"))) TS_ReplyChann
 
 static inline uintptr_t ReplyChannelRange_clone_ptr(LDKReplyChannelRange *NONNULL_PTR arg) {
        LDKReplyChannelRange ret_var = ReplyChannelRange_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ReplyChannelRange_clone_ptr"))) TS_ReplyChannelRange_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ReplyChannelRange_clone_ptr"))) TS_ReplyChannelRange_clone_ptr(uint32_t arg) {
        LDKReplyChannelRange arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ReplyChannelRange_clone_ptr(&arg_conv);
+       intptr_t ret_val = ReplyChannelRange_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26722,11 +26735,11 @@ uint32_t  __attribute__((export_name("TS_ReplyChannelRange_clone"))) TS_ReplyCha
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKReplyChannelRange ret_var = ReplyChannelRange_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26746,7 +26759,7 @@ int8_tArray  __attribute__((export_name("TS_QueryShortChannelIds_get_chain_hash"
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *QueryShortChannelIds_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26758,7 +26771,7 @@ void  __attribute__((export_name("TS_QueryShortChannelIds_set_chain_hash"))) TS_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        QueryShortChannelIds_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -26773,7 +26786,7 @@ void  __attribute__((export_name("TS_QueryShortChannelIds_set_short_channel_ids"
                val_constr.data = MALLOC(val_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                val_constr.data = NULL;
-       int64_t* val_vals = val->elems;
+       int64_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t i = 0; i < val_constr.datalen; i++) {
                int64_t val_conv_8 = val_vals[i];
                val_constr.data[i] = val_conv_8;
@@ -26784,24 +26797,24 @@ void  __attribute__((export_name("TS_QueryShortChannelIds_set_short_channel_ids"
 uint32_t  __attribute__((export_name("TS_QueryShortChannelIds_new"))) TS_QueryShortChannelIds_new(int8_tArray chain_hash_arg, int64_tArray short_channel_ids_arg) {
        LDKThirtyTwoBytes chain_hash_arg_ref;
        CHECK(chain_hash_arg->arr_len == 32);
-       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32);
+       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32); FREE(chain_hash_arg);
        LDKCVec_u64Z short_channel_ids_arg_constr;
        short_channel_ids_arg_constr.datalen = short_channel_ids_arg->arr_len;
        if (short_channel_ids_arg_constr.datalen > 0)
                short_channel_ids_arg_constr.data = MALLOC(short_channel_ids_arg_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                short_channel_ids_arg_constr.data = NULL;
-       int64_t* short_channel_ids_arg_vals = short_channel_ids_arg->elems;
+       int64_t* short_channel_ids_arg_vals = short_channel_ids_arg->elems /* XXX short_channel_ids_arg leaks */;
        for (size_t i = 0; i < short_channel_ids_arg_constr.datalen; i++) {
                int64_t short_channel_ids_arg_conv_8 = short_channel_ids_arg_vals[i];
                short_channel_ids_arg_constr.data[i] = short_channel_ids_arg_conv_8;
        }
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_new(chain_hash_arg_ref, short_channel_ids_arg_constr);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26810,22 +26823,22 @@ uint32_t  __attribute__((export_name("TS_QueryShortChannelIds_new"))) TS_QuerySh
 
 static inline uintptr_t QueryShortChannelIds_clone_ptr(LDKQueryShortChannelIds *NONNULL_PTR arg) {
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_QueryShortChannelIds_clone_ptr"))) TS_QueryShortChannelIds_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_QueryShortChannelIds_clone_ptr"))) TS_QueryShortChannelIds_clone_ptr(uint32_t arg) {
        LDKQueryShortChannelIds arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = QueryShortChannelIds_clone_ptr(&arg_conv);
+       intptr_t ret_val = QueryShortChannelIds_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26835,11 +26848,11 @@ uint32_t  __attribute__((export_name("TS_QueryShortChannelIds_clone"))) TS_Query
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26859,7 +26872,7 @@ int8_tArray  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_get_chain_ha
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *ReplyShortChannelIdsEnd_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26871,7 +26884,7 @@ void  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_set_chain_hash")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        ReplyShortChannelIdsEnd_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -26895,13 +26908,13 @@ void  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_set_full_informatio
 uint32_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_new"))) TS_ReplyShortChannelIdsEnd_new(int8_tArray chain_hash_arg, jboolean full_information_arg) {
        LDKThirtyTwoBytes chain_hash_arg_ref;
        CHECK(chain_hash_arg->arr_len == 32);
-       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32);
+       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32); FREE(chain_hash_arg);
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_new(chain_hash_arg_ref, full_information_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26910,22 +26923,22 @@ uint32_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_new"))) TS_Repl
 
 static inline uintptr_t ReplyShortChannelIdsEnd_clone_ptr(LDKReplyShortChannelIdsEnd *NONNULL_PTR arg) {
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_clone_ptr"))) TS_ReplyShortChannelIdsEnd_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_clone_ptr"))) TS_ReplyShortChannelIdsEnd_clone_ptr(uint32_t arg) {
        LDKReplyShortChannelIdsEnd arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ReplyShortChannelIdsEnd_clone_ptr(&arg_conv);
+       intptr_t ret_val = ReplyShortChannelIdsEnd_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -26935,11 +26948,11 @@ uint32_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_clone"))) TS_Re
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -26959,7 +26972,7 @@ int8_tArray  __attribute__((export_name("TS_GossipTimestampFilter_get_chain_hash
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *GossipTimestampFilter_get_chain_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -26971,7 +26984,7 @@ void  __attribute__((export_name("TS_GossipTimestampFilter_set_chain_hash"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        GossipTimestampFilter_set_chain_hash(&this_ptr_conv, val_ref);
 }
 
@@ -27012,13 +27025,13 @@ void  __attribute__((export_name("TS_GossipTimestampFilter_set_timestamp_range")
 uint32_t  __attribute__((export_name("TS_GossipTimestampFilter_new"))) TS_GossipTimestampFilter_new(int8_tArray chain_hash_arg, int32_t first_timestamp_arg, int32_t timestamp_range_arg) {
        LDKThirtyTwoBytes chain_hash_arg_ref;
        CHECK(chain_hash_arg->arr_len == 32);
-       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32);
+       memcpy(chain_hash_arg_ref.data, chain_hash_arg->elems, 32); FREE(chain_hash_arg);
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_new(chain_hash_arg_ref, first_timestamp_arg, timestamp_range_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27027,22 +27040,22 @@ uint32_t  __attribute__((export_name("TS_GossipTimestampFilter_new"))) TS_Gossip
 
 static inline uintptr_t GossipTimestampFilter_clone_ptr(LDKGossipTimestampFilter *NONNULL_PTR arg) {
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_GossipTimestampFilter_clone_ptr"))) TS_GossipTimestampFilter_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_GossipTimestampFilter_clone_ptr"))) TS_GossipTimestampFilter_clone_ptr(uint32_t arg) {
        LDKGossipTimestampFilter arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = GossipTimestampFilter_clone_ptr(&arg_conv);
+       intptr_t ret_val = GossipTimestampFilter_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -27052,11 +27065,11 @@ uint32_t  __attribute__((export_name("TS_GossipTimestampFilter_clone"))) TS_Goss
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27065,7 +27078,7 @@ uint32_t  __attribute__((export_name("TS_GossipTimestampFilter_clone"))) TS_Goss
 
 void  __attribute__((export_name("TS_ErrorAction_free"))) TS_ErrorAction_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKErrorAction this_ptr_conv = *(LDKErrorAction*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -27075,12 +27088,12 @@ void  __attribute__((export_name("TS_ErrorAction_free"))) TS_ErrorAction_free(ui
 static inline uintptr_t ErrorAction_clone_ptr(LDKErrorAction *NONNULL_PTR arg) {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ErrorAction_clone_ptr"))) TS_ErrorAction_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ErrorAction_clone_ptr"))) TS_ErrorAction_clone_ptr(uint32_t arg) {
        LDKErrorAction* arg_conv = (LDKErrorAction*)arg;
-       int64_t ret_val = ErrorAction_clone_ptr(arg_conv);
+       intptr_t ret_val = ErrorAction_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -27088,7 +27101,7 @@ uint32_t  __attribute__((export_name("TS_ErrorAction_clone"))) TS_ErrorAction_cl
        LDKErrorAction* orig_conv = (LDKErrorAction*)orig;
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -27100,14 +27113,14 @@ uint32_t  __attribute__((export_name("TS_ErrorAction_disconnect_peer"))) TS_Erro
        msg_conv = ErrorMessage_clone(&msg_conv);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_disconnect_peer(msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ErrorAction_ignore_error"))) TS_ErrorAction_ignore_error() {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_error();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -27115,14 +27128,14 @@ uint32_t  __attribute__((export_name("TS_ErrorAction_ignore_and_log"))) TS_Error
        LDKLevel a_conv = LDKLevel_from_js(a);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_and_log(a_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_ErrorAction_ignore_duplicate_gossip"))) TS_ErrorAction_ignore_duplicate_gossip() {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_duplicate_gossip();
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -27134,7 +27147,7 @@ uint32_t  __attribute__((export_name("TS_ErrorAction_send_error_message"))) TS_E
        msg_conv = ErrorMessage_clone(&msg_conv);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_send_error_message(msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -27173,7 +27186,7 @@ uint32_t  __attribute__((export_name("TS_LightningError_get_action"))) TS_Lightn
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = LightningError_get_action(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -27182,25 +27195,25 @@ void  __attribute__((export_name("TS_LightningError_set_action"))) TS_LightningE
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKErrorAction val_conv = *(LDKErrorAction*)(val_ptr);
-       val_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)val) & ~1));
+       val_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)val) & ~1));
        LightningError_set_action(&this_ptr_conv, val_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_LightningError_new"))) TS_LightningError_new(jstring err_arg, uint32_t action_arg) {
        LDKStr err_arg_conv = str_ref_to_owned_c(err_arg);
-       void* action_arg_ptr = (void*)(((uint64_t)action_arg) & ~1);
+       void* action_arg_ptr = (void*)(((uintptr_t)action_arg) & ~1);
        CHECK_ACCESS(action_arg_ptr);
        LDKErrorAction action_arg_conv = *(LDKErrorAction*)(action_arg_ptr);
-       action_arg_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)action_arg) & ~1));
+       action_arg_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)action_arg) & ~1));
        LDKLightningError ret_var = LightningError_new(err_arg_conv, action_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27209,22 +27222,22 @@ uint32_t  __attribute__((export_name("TS_LightningError_new"))) TS_LightningErro
 
 static inline uintptr_t LightningError_clone_ptr(LDKLightningError *NONNULL_PTR arg) {
        LDKLightningError ret_var = LightningError_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_LightningError_clone_ptr"))) TS_LightningError_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_LightningError_clone_ptr"))) TS_LightningError_clone_ptr(uint32_t arg) {
        LDKLightningError arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = LightningError_clone_ptr(&arg_conv);
+       intptr_t ret_val = LightningError_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -27234,11 +27247,11 @@ uint32_t  __attribute__((export_name("TS_LightningError_clone"))) TS_LightningEr
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKLightningError ret_var = LightningError_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27260,15 +27273,15 @@ uint32_tArray  __attribute__((export_name("TS_CommitmentUpdate_get_update_add_ht
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_UpdateAddHTLCZ ret_var = CommitmentUpdate_get_update_add_htlcs(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t p = 0; p < ret_var.datalen; p++) {
                LDKUpdateAddHTLC ret_conv_15_var = ret_var.data[p];
-               uint64_t ret_conv_15_ref = 0;
-               CHECK((((uint64_t)ret_conv_15_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_15_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_15_ref = 0;
+               CHECK((((uintptr_t)ret_conv_15_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_15_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_15_var);
-               ret_conv_15_ref = (uint64_t)ret_conv_15_var.inner;
+               ret_conv_15_ref = (uintptr_t)ret_conv_15_var.inner;
                if (ret_conv_15_var.is_owned) {
                        ret_conv_15_ref |= 1;
                }
@@ -27290,7 +27303,7 @@ void  __attribute__((export_name("TS_CommitmentUpdate_set_update_add_htlcs"))) T
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKUpdateAddHTLC), "LDKCVec_UpdateAddHTLCZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t p = 0; p < val_constr.datalen; p++) {
                uint32_t val_conv_15 = val_vals[p];
                LDKUpdateAddHTLC val_conv_15_conv;
@@ -27310,15 +27323,15 @@ uint32_tArray  __attribute__((export_name("TS_CommitmentUpdate_get_update_fulfil
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_UpdateFulfillHTLCZ ret_var = CommitmentUpdate_get_update_fulfill_htlcs(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t t = 0; t < ret_var.datalen; t++) {
                LDKUpdateFulfillHTLC ret_conv_19_var = ret_var.data[t];
-               uint64_t ret_conv_19_ref = 0;
-               CHECK((((uint64_t)ret_conv_19_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_19_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_19_ref = 0;
+               CHECK((((uintptr_t)ret_conv_19_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_19_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_19_var);
-               ret_conv_19_ref = (uint64_t)ret_conv_19_var.inner;
+               ret_conv_19_ref = (uintptr_t)ret_conv_19_var.inner;
                if (ret_conv_19_var.is_owned) {
                        ret_conv_19_ref |= 1;
                }
@@ -27340,7 +27353,7 @@ void  __attribute__((export_name("TS_CommitmentUpdate_set_update_fulfill_htlcs")
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKUpdateFulfillHTLC), "LDKCVec_UpdateFulfillHTLCZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t t = 0; t < val_constr.datalen; t++) {
                uint32_t val_conv_19 = val_vals[t];
                LDKUpdateFulfillHTLC val_conv_19_conv;
@@ -27360,15 +27373,15 @@ uint32_tArray  __attribute__((export_name("TS_CommitmentUpdate_get_update_fail_h
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_UpdateFailHTLCZ ret_var = CommitmentUpdate_get_update_fail_htlcs(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKUpdateFailHTLC ret_conv_16_var = ret_var.data[q];
-               uint64_t ret_conv_16_ref = 0;
-               CHECK((((uint64_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_16_ref = 0;
+               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uint64_t)ret_conv_16_var.inner;
+               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
                if (ret_conv_16_var.is_owned) {
                        ret_conv_16_ref |= 1;
                }
@@ -27390,7 +27403,7 @@ void  __attribute__((export_name("TS_CommitmentUpdate_set_update_fail_htlcs")))
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKUpdateFailHTLC), "LDKCVec_UpdateFailHTLCZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t q = 0; q < val_constr.datalen; q++) {
                uint32_t val_conv_16 = val_vals[q];
                LDKUpdateFailHTLC val_conv_16_conv;
@@ -27410,15 +27423,15 @@ uint32_tArray  __attribute__((export_name("TS_CommitmentUpdate_get_update_fail_m
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_UpdateFailMalformedHTLCZ ret_var = CommitmentUpdate_get_update_fail_malformed_htlcs(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t z = 0; z < ret_var.datalen; z++) {
                LDKUpdateFailMalformedHTLC ret_conv_25_var = ret_var.data[z];
-               uint64_t ret_conv_25_ref = 0;
-               CHECK((((uint64_t)ret_conv_25_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_25_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_25_ref = 0;
+               CHECK((((uintptr_t)ret_conv_25_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_25_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_25_var);
-               ret_conv_25_ref = (uint64_t)ret_conv_25_var.inner;
+               ret_conv_25_ref = (uintptr_t)ret_conv_25_var.inner;
                if (ret_conv_25_var.is_owned) {
                        ret_conv_25_ref |= 1;
                }
@@ -27440,7 +27453,7 @@ void  __attribute__((export_name("TS_CommitmentUpdate_set_update_fail_malformed_
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKUpdateFailMalformedHTLC), "LDKCVec_UpdateFailMalformedHTLCZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t z = 0; z < val_constr.datalen; z++) {
                uint32_t val_conv_25 = val_vals[z];
                LDKUpdateFailMalformedHTLC val_conv_25_conv;
@@ -27459,12 +27472,12 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_get_update_fee"))) TS_
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKUpdateFee ret_var = CommitmentUpdate_get_update_fee(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -27491,11 +27504,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_get_commitment_signed"
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCommitmentSigned ret_var = CommitmentUpdate_get_commitment_signed(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27522,7 +27535,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
                update_add_htlcs_arg_constr.data = MALLOC(update_add_htlcs_arg_constr.datalen * sizeof(LDKUpdateAddHTLC), "LDKCVec_UpdateAddHTLCZ Elements");
        else
                update_add_htlcs_arg_constr.data = NULL;
-       uint32_t* update_add_htlcs_arg_vals = update_add_htlcs_arg->elems;
+       uint32_t* update_add_htlcs_arg_vals = update_add_htlcs_arg->elems /* XXX update_add_htlcs_arg leaks */;
        for (size_t p = 0; p < update_add_htlcs_arg_constr.datalen; p++) {
                uint32_t update_add_htlcs_arg_conv_15 = update_add_htlcs_arg_vals[p];
                LDKUpdateAddHTLC update_add_htlcs_arg_conv_15_conv;
@@ -27538,7 +27551,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
                update_fulfill_htlcs_arg_constr.data = MALLOC(update_fulfill_htlcs_arg_constr.datalen * sizeof(LDKUpdateFulfillHTLC), "LDKCVec_UpdateFulfillHTLCZ Elements");
        else
                update_fulfill_htlcs_arg_constr.data = NULL;
-       uint32_t* update_fulfill_htlcs_arg_vals = update_fulfill_htlcs_arg->elems;
+       uint32_t* update_fulfill_htlcs_arg_vals = update_fulfill_htlcs_arg->elems /* XXX update_fulfill_htlcs_arg leaks */;
        for (size_t t = 0; t < update_fulfill_htlcs_arg_constr.datalen; t++) {
                uint32_t update_fulfill_htlcs_arg_conv_19 = update_fulfill_htlcs_arg_vals[t];
                LDKUpdateFulfillHTLC update_fulfill_htlcs_arg_conv_19_conv;
@@ -27554,7 +27567,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
                update_fail_htlcs_arg_constr.data = MALLOC(update_fail_htlcs_arg_constr.datalen * sizeof(LDKUpdateFailHTLC), "LDKCVec_UpdateFailHTLCZ Elements");
        else
                update_fail_htlcs_arg_constr.data = NULL;
-       uint32_t* update_fail_htlcs_arg_vals = update_fail_htlcs_arg->elems;
+       uint32_t* update_fail_htlcs_arg_vals = update_fail_htlcs_arg->elems /* XXX update_fail_htlcs_arg leaks */;
        for (size_t q = 0; q < update_fail_htlcs_arg_constr.datalen; q++) {
                uint32_t update_fail_htlcs_arg_conv_16 = update_fail_htlcs_arg_vals[q];
                LDKUpdateFailHTLC update_fail_htlcs_arg_conv_16_conv;
@@ -27570,7 +27583,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
                update_fail_malformed_htlcs_arg_constr.data = MALLOC(update_fail_malformed_htlcs_arg_constr.datalen * sizeof(LDKUpdateFailMalformedHTLC), "LDKCVec_UpdateFailMalformedHTLCZ Elements");
        else
                update_fail_malformed_htlcs_arg_constr.data = NULL;
-       uint32_t* update_fail_malformed_htlcs_arg_vals = update_fail_malformed_htlcs_arg->elems;
+       uint32_t* update_fail_malformed_htlcs_arg_vals = update_fail_malformed_htlcs_arg->elems /* XXX update_fail_malformed_htlcs_arg leaks */;
        for (size_t z = 0; z < update_fail_malformed_htlcs_arg_constr.datalen; z++) {
                uint32_t update_fail_malformed_htlcs_arg_conv_25 = update_fail_malformed_htlcs_arg_vals[z];
                LDKUpdateFailMalformedHTLC update_fail_malformed_htlcs_arg_conv_25_conv;
@@ -27591,11 +27604,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_signed_arg_conv);
        commitment_signed_arg_conv = CommitmentSigned_clone(&commitment_signed_arg_conv);
        LDKCommitmentUpdate ret_var = CommitmentUpdate_new(update_add_htlcs_arg_constr, update_fulfill_htlcs_arg_constr, update_fail_htlcs_arg_constr, update_fail_malformed_htlcs_arg_constr, update_fee_arg_conv, commitment_signed_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27604,22 +27617,22 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_new"))) TS_CommitmentU
 
 static inline uintptr_t CommitmentUpdate_clone_ptr(LDKCommitmentUpdate *NONNULL_PTR arg) {
        LDKCommitmentUpdate ret_var = CommitmentUpdate_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_CommitmentUpdate_clone_ptr"))) TS_CommitmentUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CommitmentUpdate_clone_ptr"))) TS_CommitmentUpdate_clone_ptr(uint32_t arg) {
        LDKCommitmentUpdate arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = CommitmentUpdate_clone_ptr(&arg_conv);
+       intptr_t ret_val = CommitmentUpdate_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -27629,11 +27642,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_clone"))) TS_Commitmen
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKCommitmentUpdate ret_var = CommitmentUpdate_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -27642,7 +27655,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentUpdate_clone"))) TS_Commitmen
 
 void  __attribute__((export_name("TS_ChannelMessageHandler_free"))) TS_ChannelMessageHandler_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKChannelMessageHandler this_ptr_conv = *(LDKChannelMessageHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -27651,7 +27664,7 @@ void  __attribute__((export_name("TS_ChannelMessageHandler_free"))) TS_ChannelMe
 
 void  __attribute__((export_name("TS_RoutingMessageHandler_free"))) TS_RoutingMessageHandler_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKRoutingMessageHandler this_ptr_conv = *(LDKRoutingMessageHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -27664,7 +27677,7 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_write"))) TS_AcceptCha
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = AcceptChannel_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27673,10 +27686,10 @@ int8_tArray  __attribute__((export_name("TS_AcceptChannel_write"))) TS_AcceptCha
 uint32_t  __attribute__((export_name("TS_AcceptChannel_read"))) TS_AcceptChannel_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = AcceptChannel_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_write"))) TS_AnnouncementSignatures_write(uint32_t obj) {
@@ -27685,7 +27698,7 @@ int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_write"))) TS_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = AnnouncementSignatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27694,10 +27707,10 @@ int8_tArray  __attribute__((export_name("TS_AnnouncementSignatures_write"))) TS_
 uint32_t  __attribute__((export_name("TS_AnnouncementSignatures_read"))) TS_AnnouncementSignatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = AnnouncementSignatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelReestablish_write"))) TS_ChannelReestablish_write(uint32_t obj) {
@@ -27706,7 +27719,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelReestablish_write"))) TS_Chan
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelReestablish_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27715,10 +27728,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelReestablish_write"))) TS_Chan
 uint32_t  __attribute__((export_name("TS_ChannelReestablish_read"))) TS_ChannelReestablish_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = ChannelReestablish_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ClosingSigned_write"))) TS_ClosingSigned_write(uint32_t obj) {
@@ -27727,7 +27740,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingSigned_write"))) TS_ClosingSi
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ClosingSigned_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27736,10 +27749,10 @@ int8_tArray  __attribute__((export_name("TS_ClosingSigned_write"))) TS_ClosingSi
 uint32_t  __attribute__((export_name("TS_ClosingSigned_read"))) TS_ClosingSigned_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = ClosingSigned_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ClosingSignedFeeRange_write"))) TS_ClosingSignedFeeRange_write(uint32_t obj) {
@@ -27748,7 +27761,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingSignedFeeRange_write"))) TS_C
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ClosingSignedFeeRange_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27757,10 +27770,10 @@ int8_tArray  __attribute__((export_name("TS_ClosingSignedFeeRange_write"))) TS_C
 uint32_t  __attribute__((export_name("TS_ClosingSignedFeeRange_read"))) TS_ClosingSignedFeeRange_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = ClosingSignedFeeRange_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_CommitmentSigned_write"))) TS_CommitmentSigned_write(uint32_t obj) {
@@ -27769,7 +27782,7 @@ int8_tArray  __attribute__((export_name("TS_CommitmentSigned_write"))) TS_Commit
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = CommitmentSigned_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27778,10 +27791,10 @@ int8_tArray  __attribute__((export_name("TS_CommitmentSigned_write"))) TS_Commit
 uint32_t  __attribute__((export_name("TS_CommitmentSigned_read"))) TS_CommitmentSigned_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CommitmentSigned_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_FundingCreated_write"))) TS_FundingCreated_write(uint32_t obj) {
@@ -27790,7 +27803,7 @@ int8_tArray  __attribute__((export_name("TS_FundingCreated_write"))) TS_FundingC
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = FundingCreated_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27799,10 +27812,10 @@ int8_tArray  __attribute__((export_name("TS_FundingCreated_write"))) TS_FundingC
 uint32_t  __attribute__((export_name("TS_FundingCreated_read"))) TS_FundingCreated_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = FundingCreated_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_FundingSigned_write"))) TS_FundingSigned_write(uint32_t obj) {
@@ -27811,7 +27824,7 @@ int8_tArray  __attribute__((export_name("TS_FundingSigned_write"))) TS_FundingSi
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = FundingSigned_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27820,10 +27833,10 @@ int8_tArray  __attribute__((export_name("TS_FundingSigned_write"))) TS_FundingSi
 uint32_t  __attribute__((export_name("TS_FundingSigned_read"))) TS_FundingSigned_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = FundingSigned_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_FundingLocked_write"))) TS_FundingLocked_write(uint32_t obj) {
@@ -27832,7 +27845,7 @@ int8_tArray  __attribute__((export_name("TS_FundingLocked_write"))) TS_FundingLo
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = FundingLocked_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27841,10 +27854,10 @@ int8_tArray  __attribute__((export_name("TS_FundingLocked_write"))) TS_FundingLo
 uint32_t  __attribute__((export_name("TS_FundingLocked_read"))) TS_FundingLocked_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_FundingLockedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingLockedDecodeErrorZ), "LDKCResult_FundingLockedDecodeErrorZ");
        *ret_conv = FundingLocked_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_Init_write"))) TS_Init_write(uint32_t obj) {
@@ -27853,7 +27866,7 @@ int8_tArray  __attribute__((export_name("TS_Init_write"))) TS_Init_write(uint32_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Init_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27862,10 +27875,10 @@ int8_tArray  __attribute__((export_name("TS_Init_write"))) TS_Init_write(uint32_
 uint32_t  __attribute__((export_name("TS_Init_read"))) TS_Init_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = Init_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_OpenChannel_write"))) TS_OpenChannel_write(uint32_t obj) {
@@ -27874,7 +27887,7 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_write"))) TS_OpenChannel
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = OpenChannel_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27883,10 +27896,10 @@ int8_tArray  __attribute__((export_name("TS_OpenChannel_write"))) TS_OpenChannel
 uint32_t  __attribute__((export_name("TS_OpenChannel_read"))) TS_OpenChannel_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = OpenChannel_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_RevokeAndACK_write"))) TS_RevokeAndACK_write(uint32_t obj) {
@@ -27895,7 +27908,7 @@ int8_tArray  __attribute__((export_name("TS_RevokeAndACK_write"))) TS_RevokeAndA
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RevokeAndACK_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27904,10 +27917,10 @@ int8_tArray  __attribute__((export_name("TS_RevokeAndACK_write"))) TS_RevokeAndA
 uint32_t  __attribute__((export_name("TS_RevokeAndACK_read"))) TS_RevokeAndACK_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = RevokeAndACK_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_Shutdown_write"))) TS_Shutdown_write(uint32_t obj) {
@@ -27916,7 +27929,7 @@ int8_tArray  __attribute__((export_name("TS_Shutdown_write"))) TS_Shutdown_write
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Shutdown_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27925,10 +27938,10 @@ int8_tArray  __attribute__((export_name("TS_Shutdown_write"))) TS_Shutdown_write
 uint32_t  __attribute__((export_name("TS_Shutdown_read"))) TS_Shutdown_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = Shutdown_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UpdateFailHTLC_write"))) TS_UpdateFailHTLC_write(uint32_t obj) {
@@ -27937,7 +27950,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailHTLC_write"))) TS_UpdateFa
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UpdateFailHTLC_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27946,10 +27959,10 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailHTLC_write"))) TS_UpdateFa
 uint32_t  __attribute__((export_name("TS_UpdateFailHTLC_read"))) TS_UpdateFailHTLC_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = UpdateFailHTLC_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UpdateFailMalformedHTLC_write"))) TS_UpdateFailMalformedHTLC_write(uint32_t obj) {
@@ -27958,7 +27971,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailMalformedHTLC_write"))) TS
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UpdateFailMalformedHTLC_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27967,10 +27980,10 @@ int8_tArray  __attribute__((export_name("TS_UpdateFailMalformedHTLC_write"))) TS
 uint32_t  __attribute__((export_name("TS_UpdateFailMalformedHTLC_read"))) TS_UpdateFailMalformedHTLC_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = UpdateFailMalformedHTLC_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UpdateFee_write"))) TS_UpdateFee_write(uint32_t obj) {
@@ -27979,7 +27992,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFee_write"))) TS_UpdateFee_wri
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UpdateFee_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -27988,10 +28001,10 @@ int8_tArray  __attribute__((export_name("TS_UpdateFee_write"))) TS_UpdateFee_wri
 uint32_t  __attribute__((export_name("TS_UpdateFee_read"))) TS_UpdateFee_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = UpdateFee_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UpdateFulfillHTLC_write"))) TS_UpdateFulfillHTLC_write(uint32_t obj) {
@@ -28000,7 +28013,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateFulfillHTLC_write"))) TS_Updat
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UpdateFulfillHTLC_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28009,10 +28022,10 @@ int8_tArray  __attribute__((export_name("TS_UpdateFulfillHTLC_write"))) TS_Updat
 uint32_t  __attribute__((export_name("TS_UpdateFulfillHTLC_read"))) TS_UpdateFulfillHTLC_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = UpdateFulfillHTLC_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UpdateAddHTLC_write"))) TS_UpdateAddHTLC_write(uint32_t obj) {
@@ -28021,7 +28034,7 @@ int8_tArray  __attribute__((export_name("TS_UpdateAddHTLC_write"))) TS_UpdateAdd
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UpdateAddHTLC_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28030,10 +28043,10 @@ int8_tArray  __attribute__((export_name("TS_UpdateAddHTLC_write"))) TS_UpdateAdd
 uint32_t  __attribute__((export_name("TS_UpdateAddHTLC_read"))) TS_UpdateAddHTLC_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = UpdateAddHTLC_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_Ping_write"))) TS_Ping_write(uint32_t obj) {
@@ -28042,7 +28055,7 @@ int8_tArray  __attribute__((export_name("TS_Ping_write"))) TS_Ping_write(uint32_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Ping_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28051,10 +28064,10 @@ int8_tArray  __attribute__((export_name("TS_Ping_write"))) TS_Ping_write(uint32_
 uint32_t  __attribute__((export_name("TS_Ping_read"))) TS_Ping_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = Ping_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_Pong_write"))) TS_Pong_write(uint32_t obj) {
@@ -28063,7 +28076,7 @@ int8_tArray  __attribute__((export_name("TS_Pong_write"))) TS_Pong_write(uint32_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Pong_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28072,10 +28085,10 @@ int8_tArray  __attribute__((export_name("TS_Pong_write"))) TS_Pong_write(uint32_
 uint32_t  __attribute__((export_name("TS_Pong_read"))) TS_Pong_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = Pong_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_write"))) TS_UnsignedChannelAnnouncement_write(uint32_t obj) {
@@ -28084,7 +28097,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_write"))
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UnsignedChannelAnnouncement_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28093,10 +28106,10 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelAnnouncement_write"))
 uint32_t  __attribute__((export_name("TS_UnsignedChannelAnnouncement_read"))) TS_UnsignedChannelAnnouncement_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = UnsignedChannelAnnouncement_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_write"))) TS_ChannelAnnouncement_write(uint32_t obj) {
@@ -28105,7 +28118,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_write"))) TS_Cha
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelAnnouncement_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28114,10 +28127,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelAnnouncement_write"))) TS_Cha
 uint32_t  __attribute__((export_name("TS_ChannelAnnouncement_read"))) TS_ChannelAnnouncement_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = ChannelAnnouncement_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UnsignedChannelUpdate_write"))) TS_UnsignedChannelUpdate_write(uint32_t obj) {
@@ -28126,7 +28139,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelUpdate_write"))) TS_U
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UnsignedChannelUpdate_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28135,10 +28148,10 @@ int8_tArray  __attribute__((export_name("TS_UnsignedChannelUpdate_write"))) TS_U
 uint32_t  __attribute__((export_name("TS_UnsignedChannelUpdate_read"))) TS_UnsignedChannelUpdate_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = UnsignedChannelUpdate_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelUpdate_write"))) TS_ChannelUpdate_write(uint32_t obj) {
@@ -28147,7 +28160,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelUpdate_write"))) TS_ChannelUp
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelUpdate_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28156,10 +28169,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelUpdate_write"))) TS_ChannelUp
 uint32_t  __attribute__((export_name("TS_ChannelUpdate_read"))) TS_ChannelUpdate_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = ChannelUpdate_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ErrorMessage_write"))) TS_ErrorMessage_write(uint32_t obj) {
@@ -28168,7 +28181,7 @@ int8_tArray  __attribute__((export_name("TS_ErrorMessage_write"))) TS_ErrorMessa
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ErrorMessage_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28177,10 +28190,10 @@ int8_tArray  __attribute__((export_name("TS_ErrorMessage_write"))) TS_ErrorMessa
 uint32_t  __attribute__((export_name("TS_ErrorMessage_read"))) TS_ErrorMessage_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = ErrorMessage_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_write"))) TS_UnsignedNodeAnnouncement_write(uint32_t obj) {
@@ -28189,7 +28202,7 @@ int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_write"))) T
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = UnsignedNodeAnnouncement_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28198,10 +28211,10 @@ int8_tArray  __attribute__((export_name("TS_UnsignedNodeAnnouncement_write"))) T
 uint32_t  __attribute__((export_name("TS_UnsignedNodeAnnouncement_read"))) TS_UnsignedNodeAnnouncement_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = UnsignedNodeAnnouncement_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_NodeAnnouncement_write"))) TS_NodeAnnouncement_write(uint32_t obj) {
@@ -28210,7 +28223,7 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncement_write"))) TS_NodeAn
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NodeAnnouncement_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28219,19 +28232,19 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncement_write"))) TS_NodeAn
 uint32_t  __attribute__((export_name("TS_NodeAnnouncement_read"))) TS_NodeAnnouncement_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = NodeAnnouncement_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_QueryShortChannelIds_read"))) TS_QueryShortChannelIds_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = QueryShortChannelIds_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_QueryShortChannelIds_write"))) TS_QueryShortChannelIds_write(uint32_t obj) {
@@ -28240,7 +28253,7 @@ int8_tArray  __attribute__((export_name("TS_QueryShortChannelIds_write"))) TS_Qu
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = QueryShortChannelIds_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28252,7 +28265,7 @@ int8_tArray  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_write"))) TS
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ReplyShortChannelIdsEnd_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28261,10 +28274,10 @@ int8_tArray  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_write"))) TS
 uint32_t  __attribute__((export_name("TS_ReplyShortChannelIdsEnd_read"))) TS_ReplyShortChannelIdsEnd_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = ReplyShortChannelIdsEnd_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int32_t  __attribute__((export_name("TS_QueryChannelRange_end_blocknum"))) TS_QueryChannelRange_end_blocknum(uint32_t this_arg) {
@@ -28282,7 +28295,7 @@ int8_tArray  __attribute__((export_name("TS_QueryChannelRange_write"))) TS_Query
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = QueryChannelRange_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28291,19 +28304,19 @@ int8_tArray  __attribute__((export_name("TS_QueryChannelRange_write"))) TS_Query
 uint32_t  __attribute__((export_name("TS_QueryChannelRange_read"))) TS_QueryChannelRange_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = QueryChannelRange_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ReplyChannelRange_read"))) TS_ReplyChannelRange_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = ReplyChannelRange_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ReplyChannelRange_write"))) TS_ReplyChannelRange_write(uint32_t obj) {
@@ -28312,7 +28325,7 @@ int8_tArray  __attribute__((export_name("TS_ReplyChannelRange_write"))) TS_Reply
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ReplyChannelRange_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28324,7 +28337,7 @@ int8_tArray  __attribute__((export_name("TS_GossipTimestampFilter_write"))) TS_G
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = GossipTimestampFilter_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -28333,15 +28346,15 @@ int8_tArray  __attribute__((export_name("TS_GossipTimestampFilter_write"))) TS_G
 uint32_t  __attribute__((export_name("TS_GossipTimestampFilter_read"))) TS_GossipTimestampFilter_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = GossipTimestampFilter_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_CustomMessageHandler_free"))) TS_CustomMessageHandler_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKCustomMessageHandler this_ptr_conv = *(LDKCustomMessageHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -28358,11 +28371,11 @@ void  __attribute__((export_name("TS_IgnoringMessageHandler_free"))) TS_Ignoring
 
 uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_new"))) TS_IgnoringMessageHandler_new() {
        LDKIgnoringMessageHandler ret_var = IgnoringMessageHandler_new();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28376,7 +28389,7 @@ uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_MessageSendEv
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = IgnoringMessageHandler_as_MessageSendEventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_RoutingMessageHandler"))) TS_IgnoringMessageHandler_as_RoutingMessageHandler(uint32_t this_arg) {
@@ -28386,7 +28399,7 @@ uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_RoutingMessag
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKRoutingMessageHandler* ret_ret = MALLOC(sizeof(LDKRoutingMessageHandler), "LDKRoutingMessageHandler");
        *ret_ret = IgnoringMessageHandler_as_RoutingMessageHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_CustomMessageReader"))) TS_IgnoringMessageHandler_as_CustomMessageReader(uint32_t this_arg) {
@@ -28396,7 +28409,7 @@ uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_CustomMessage
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCustomMessageReader* ret_ret = MALLOC(sizeof(LDKCustomMessageReader), "LDKCustomMessageReader");
        *ret_ret = IgnoringMessageHandler_as_CustomMessageReader(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_CustomMessageHandler"))) TS_IgnoringMessageHandler_as_CustomMessageHandler(uint32_t this_arg) {
@@ -28406,7 +28419,7 @@ uint32_t  __attribute__((export_name("TS_IgnoringMessageHandler_as_CustomMessage
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCustomMessageHandler* ret_ret = MALLOC(sizeof(LDKCustomMessageHandler), "LDKCustomMessageHandler");
        *ret_ret = IgnoringMessageHandler_as_CustomMessageHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_ErroringMessageHandler_free"))) TS_ErroringMessageHandler_free(uint32_t this_obj) {
@@ -28419,11 +28432,11 @@ void  __attribute__((export_name("TS_ErroringMessageHandler_free"))) TS_Erroring
 
 uint32_t  __attribute__((export_name("TS_ErroringMessageHandler_new"))) TS_ErroringMessageHandler_new() {
        LDKErroringMessageHandler ret_var = ErroringMessageHandler_new();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28437,7 +28450,7 @@ uint32_t  __attribute__((export_name("TS_ErroringMessageHandler_as_MessageSendEv
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = ErroringMessageHandler_as_MessageSendEventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_ErroringMessageHandler_as_ChannelMessageHandler"))) TS_ErroringMessageHandler_as_ChannelMessageHandler(uint32_t this_arg) {
@@ -28447,7 +28460,7 @@ uint32_t  __attribute__((export_name("TS_ErroringMessageHandler_as_ChannelMessag
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelMessageHandler* ret_ret = MALLOC(sizeof(LDKChannelMessageHandler), "LDKChannelMessageHandler");
        *ret_ret = ErroringMessageHandler_as_ChannelMessageHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_MessageHandler_free"))) TS_MessageHandler_free(uint32_t this_obj) {
@@ -28464,7 +28477,7 @@ uint32_t  __attribute__((export_name("TS_MessageHandler_get_chan_handler"))) TS_
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)MessageHandler_get_chan_handler(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)MessageHandler_get_chan_handler(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -28473,7 +28486,7 @@ void  __attribute__((export_name("TS_MessageHandler_set_chan_handler"))) TS_Mess
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKChannelMessageHandler val_conv = *(LDKChannelMessageHandler*)(val_ptr);
        MessageHandler_set_chan_handler(&this_ptr_conv, val_conv);
@@ -28485,7 +28498,7 @@ uint32_t  __attribute__((export_name("TS_MessageHandler_get_route_handler"))) TS
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        // WARNING: This object doesn't live past this scope, needs clone!
-       uint64_t ret_ret = ((uint64_t)MessageHandler_get_route_handler(&this_ptr_conv)) | 1;
+       uintptr_t ret_ret = ((uintptr_t)MessageHandler_get_route_handler(&this_ptr_conv)) | 1;
        return ret_ret;
 }
 
@@ -28494,25 +28507,25 @@ void  __attribute__((export_name("TS_MessageHandler_set_route_handler"))) TS_Mes
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKRoutingMessageHandler val_conv = *(LDKRoutingMessageHandler*)(val_ptr);
        MessageHandler_set_route_handler(&this_ptr_conv, val_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_MessageHandler_new"))) TS_MessageHandler_new(uint32_t chan_handler_arg, uint32_t route_handler_arg) {
-       void* chan_handler_arg_ptr = (void*)(((uint64_t)chan_handler_arg) & ~1);
+       void* chan_handler_arg_ptr = (void*)(((uintptr_t)chan_handler_arg) & ~1);
        CHECK_ACCESS(chan_handler_arg_ptr);
        LDKChannelMessageHandler chan_handler_arg_conv = *(LDKChannelMessageHandler*)(chan_handler_arg_ptr);
-       void* route_handler_arg_ptr = (void*)(((uint64_t)route_handler_arg) & ~1);
+       void* route_handler_arg_ptr = (void*)(((uintptr_t)route_handler_arg) & ~1);
        CHECK_ACCESS(route_handler_arg_ptr);
        LDKRoutingMessageHandler route_handler_arg_conv = *(LDKRoutingMessageHandler*)(route_handler_arg_ptr);
        LDKMessageHandler ret_var = MessageHandler_new(chan_handler_arg_conv, route_handler_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28522,28 +28535,28 @@ uint32_t  __attribute__((export_name("TS_MessageHandler_new"))) TS_MessageHandle
 static inline uintptr_t SocketDescriptor_clone_ptr(LDKSocketDescriptor *NONNULL_PTR arg) {
        LDKSocketDescriptor* ret_ret = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *ret_ret = SocketDescriptor_clone(arg);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
-int64_t  __attribute__((export_name("TS_SocketDescriptor_clone_ptr"))) TS_SocketDescriptor_clone_ptr(uint32_t arg) {
-       void* arg_ptr = (void*)(((uint64_t)arg) & ~1);
+intptr_t  __attribute__((export_name("TS_SocketDescriptor_clone_ptr"))) TS_SocketDescriptor_clone_ptr(uint32_t arg) {
+       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
        if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
        LDKSocketDescriptor* arg_conv = (LDKSocketDescriptor*)arg_ptr;
-       int64_t ret_val = SocketDescriptor_clone_ptr(arg_conv);
+       intptr_t ret_val = SocketDescriptor_clone_ptr(arg_conv);
        return ret_val;
 }
 
 uint32_t  __attribute__((export_name("TS_SocketDescriptor_clone"))) TS_SocketDescriptor_clone(uint32_t orig) {
-       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
        if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
        LDKSocketDescriptor* orig_conv = (LDKSocketDescriptor*)orig_ptr;
        LDKSocketDescriptor* ret_ret = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *ret_ret = SocketDescriptor_clone(orig_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_SocketDescriptor_free"))) TS_SocketDescriptor_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSocketDescriptor this_ptr_conv = *(LDKSocketDescriptor*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -28577,11 +28590,11 @@ void  __attribute__((export_name("TS_PeerHandleError_set_no_connection_possible"
 
 uint32_t  __attribute__((export_name("TS_PeerHandleError_new"))) TS_PeerHandleError_new(jboolean no_connection_possible_arg) {
        LDKPeerHandleError ret_var = PeerHandleError_new(no_connection_possible_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28590,22 +28603,22 @@ uint32_t  __attribute__((export_name("TS_PeerHandleError_new"))) TS_PeerHandleEr
 
 static inline uintptr_t PeerHandleError_clone_ptr(LDKPeerHandleError *NONNULL_PTR arg) {
        LDKPeerHandleError ret_var = PeerHandleError_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_PeerHandleError_clone_ptr"))) TS_PeerHandleError_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_PeerHandleError_clone_ptr"))) TS_PeerHandleError_clone_ptr(uint32_t arg) {
        LDKPeerHandleError arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = PeerHandleError_clone_ptr(&arg_conv);
+       intptr_t ret_val = PeerHandleError_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -28615,11 +28628,11 @@ uint32_t  __attribute__((export_name("TS_PeerHandleError_clone"))) TS_PeerHandle
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKPeerHandleError ret_var = PeerHandleError_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28642,23 +28655,23 @@ uint32_t  __attribute__((export_name("TS_PeerManager_new"))) TS_PeerManager_new(
        // Warning: we need a move here but no clone is available for LDKMessageHandler
        LDKSecretKey our_node_secret_ref;
        CHECK(our_node_secret->arr_len == 32);
-       memcpy(our_node_secret_ref.bytes, our_node_secret->elems, 32);
+       memcpy(our_node_secret_ref.bytes, our_node_secret->elems, 32); FREE(our_node_secret);
        unsigned char ephemeral_random_data_arr[32];
        CHECK(ephemeral_random_data->arr_len == 32);
-       memcpy(ephemeral_random_data_arr, ephemeral_random_data->elems, 32);
+       memcpy(ephemeral_random_data_arr, ephemeral_random_data->elems, 32); FREE(ephemeral_random_data);
        unsigned char (*ephemeral_random_data_ref)[32] = &ephemeral_random_data_arr;
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
-       void* custom_message_handler_ptr = (void*)(((uint64_t)custom_message_handler) & ~1);
+       void* custom_message_handler_ptr = (void*)(((uintptr_t)custom_message_handler) & ~1);
        CHECK_ACCESS(custom_message_handler_ptr);
        LDKCustomMessageHandler custom_message_handler_conv = *(LDKCustomMessageHandler*)(custom_message_handler_ptr);
        LDKPeerManager ret_var = PeerManager_new(message_handler_conv, our_node_secret_ref, ephemeral_random_data_ref, logger_conv, custom_message_handler_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -28672,10 +28685,10 @@ ptrArray  __attribute__((export_name("TS_PeerManager_get_peer_node_ids"))) TS_Pe
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKCVec_PublicKeyZ ret_var = PeerManager_get_peer_node_ids(&this_arg_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        int8_tArray *ret_arr_ptr = (int8_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
-               int8_tArray ret_conv_12_arr = init_int8_tArray(33);
+               int8_tArray ret_conv_12_arr = init_int8_tArray(33, __LINE__);
                memcpy(ret_conv_12_arr->elems, ret_var.data[m].compressed_form, 33);
                ret_arr_ptr[m] = ret_conv_12_arr;
        }
@@ -28691,13 +28704,13 @@ uint32_t  __attribute__((export_name("TS_PeerManager_new_outbound_connection")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKPublicKey their_node_id_ref;
        CHECK(their_node_id->arr_len == 33);
-       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33);
-       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       memcpy(their_node_id_ref.compressed_form, their_node_id->elems, 33); FREE(their_node_id);
+       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
        CHECK_ACCESS(descriptor_ptr);
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(descriptor_ptr);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = PeerManager_new_outbound_connection(&this_arg_conv, their_node_id_ref, descriptor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_PeerManager_new_inbound_connection"))) TS_PeerManager_new_inbound_connection(uint32_t this_arg, uint32_t descriptor) {
@@ -28705,12 +28718,12 @@ uint32_t  __attribute__((export_name("TS_PeerManager_new_inbound_connection")))
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
        CHECK_ACCESS(descriptor_ptr);
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(descriptor_ptr);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = PeerManager_new_inbound_connection(&this_arg_conv, descriptor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_PeerManager_write_buffer_space_avail"))) TS_PeerManager_write_buffer_space_avail(uint32_t this_arg, uint32_t descriptor) {
@@ -28718,12 +28731,12 @@ uint32_t  __attribute__((export_name("TS_PeerManager_write_buffer_space_avail"))
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
        if (!(descriptor & 1)) { CHECK_ACCESS(descriptor_ptr); }
        LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)descriptor_ptr;
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = PeerManager_write_buffer_space_avail(&this_arg_conv, descriptor_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_PeerManager_read_event"))) TS_PeerManager_read_event(uint32_t this_arg, uint32_t peer_descriptor, int8_tArray data) {
@@ -28731,15 +28744,15 @@ uint32_t  __attribute__((export_name("TS_PeerManager_read_event"))) TS_PeerManag
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* peer_descriptor_ptr = (void*)(((uint64_t)peer_descriptor) & ~1);
+       void* peer_descriptor_ptr = (void*)(((uintptr_t)peer_descriptor) & ~1);
        if (!(peer_descriptor & 1)) { CHECK_ACCESS(peer_descriptor_ptr); }
        LDKSocketDescriptor* peer_descriptor_conv = (LDKSocketDescriptor*)peer_descriptor_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = data->arr_len;
-       data_ref.data = data->elems;
+       data_ref.data = data->elems /* XXX data leaks */;
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = PeerManager_read_event(&this_arg_conv, peer_descriptor_conv, data_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_PeerManager_process_events"))) TS_PeerManager_process_events(uint32_t this_arg) {
@@ -28755,7 +28768,7 @@ void  __attribute__((export_name("TS_PeerManager_socket_disconnected"))) TS_Peer
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
        if (!(descriptor & 1)) { CHECK_ACCESS(descriptor_ptr); }
        LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)descriptor_ptr;
        PeerManager_socket_disconnected(&this_arg_conv, descriptor_conv);
@@ -28768,7 +28781,7 @@ void  __attribute__((export_name("TS_PeerManager_disconnect_by_node_id"))) TS_Pe
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        PeerManager_disconnect_by_node_id(&this_arg_conv, node_id_ref, no_connection_possible);
 }
 
@@ -28801,9 +28814,9 @@ int64_t  __attribute__((export_name("TS_htlc_timeout_tx_weight"))) TS_htlc_timeo
 int8_tArray  __attribute__((export_name("TS_build_commitment_secret"))) TS_build_commitment_secret(int8_tArray commitment_seed, int64_t idx) {
        unsigned char commitment_seed_arr[32];
        CHECK(commitment_seed->arr_len == 32);
-       memcpy(commitment_seed_arr, commitment_seed->elems, 32);
+       memcpy(commitment_seed_arr, commitment_seed->elems, 32); FREE(commitment_seed);
        unsigned char (*commitment_seed_ref)[32] = &commitment_seed_arr;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, build_commitment_secret(commitment_seed_ref, idx).data, 32);
        return ret_arr;
 }
@@ -28812,18 +28825,18 @@ int8_tArray  __attribute__((export_name("TS_build_closing_transaction"))) TS_bui
        LDKCVec_u8Z to_holder_script_ref;
        to_holder_script_ref.datalen = to_holder_script->arr_len;
        to_holder_script_ref.data = MALLOC(to_holder_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(to_holder_script_ref.data, to_holder_script->elems, to_holder_script_ref.datalen);
+       memcpy(to_holder_script_ref.data, to_holder_script->elems, to_holder_script_ref.datalen); FREE(to_holder_script);
        LDKCVec_u8Z to_counterparty_script_ref;
        to_counterparty_script_ref.datalen = to_counterparty_script->arr_len;
        to_counterparty_script_ref.data = MALLOC(to_counterparty_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(to_counterparty_script_ref.data, to_counterparty_script->elems, to_counterparty_script_ref.datalen);
+       memcpy(to_counterparty_script_ref.data, to_counterparty_script->elems, to_counterparty_script_ref.datalen); FREE(to_counterparty_script);
        LDKOutPoint funding_outpoint_conv;
        funding_outpoint_conv.inner = (void*)(funding_outpoint & (~1));
        funding_outpoint_conv.is_owned = (funding_outpoint & 1) || (funding_outpoint == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_conv);
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKTransaction ret_var = build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, to_holder_script_ref, to_counterparty_script_ref, funding_outpoint_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        Transaction_free(ret_var);
        return ret_arr;
@@ -28832,52 +28845,52 @@ int8_tArray  __attribute__((export_name("TS_build_closing_transaction"))) TS_bui
 uint32_t  __attribute__((export_name("TS_derive_private_key"))) TS_derive_private_key(int8_tArray per_commitment_point, int8_tArray base_secret) {
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        unsigned char base_secret_arr[32];
        CHECK(base_secret->arr_len == 32);
-       memcpy(base_secret_arr, base_secret->elems, 32);
+       memcpy(base_secret_arr, base_secret->elems, 32); FREE(base_secret);
        unsigned char (*base_secret_ref)[32] = &base_secret_arr;
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = derive_private_key(per_commitment_point_ref, base_secret_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_derive_public_key"))) TS_derive_public_key(int8_tArray per_commitment_point, int8_tArray base_point) {
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        LDKPublicKey base_point_ref;
        CHECK(base_point->arr_len == 33);
-       memcpy(base_point_ref.compressed_form, base_point->elems, 33);
+       memcpy(base_point_ref.compressed_form, base_point->elems, 33); FREE(base_point);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = derive_public_key(per_commitment_point_ref, base_point_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_derive_private_revocation_key"))) TS_derive_private_revocation_key(int8_tArray per_commitment_secret, int8_tArray countersignatory_revocation_base_secret) {
        unsigned char per_commitment_secret_arr[32];
        CHECK(per_commitment_secret->arr_len == 32);
-       memcpy(per_commitment_secret_arr, per_commitment_secret->elems, 32);
+       memcpy(per_commitment_secret_arr, per_commitment_secret->elems, 32); FREE(per_commitment_secret);
        unsigned char (*per_commitment_secret_ref)[32] = &per_commitment_secret_arr;
        unsigned char countersignatory_revocation_base_secret_arr[32];
        CHECK(countersignatory_revocation_base_secret->arr_len == 32);
-       memcpy(countersignatory_revocation_base_secret_arr, countersignatory_revocation_base_secret->elems, 32);
+       memcpy(countersignatory_revocation_base_secret_arr, countersignatory_revocation_base_secret->elems, 32); FREE(countersignatory_revocation_base_secret);
        unsigned char (*countersignatory_revocation_base_secret_ref)[32] = &countersignatory_revocation_base_secret_arr;
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = derive_private_revocation_key(per_commitment_secret_ref, countersignatory_revocation_base_secret_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_derive_public_revocation_key"))) TS_derive_public_revocation_key(int8_tArray per_commitment_point, int8_tArray countersignatory_revocation_base_point) {
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        LDKPublicKey countersignatory_revocation_base_point_ref;
        CHECK(countersignatory_revocation_base_point->arr_len == 33);
-       memcpy(countersignatory_revocation_base_point_ref.compressed_form, countersignatory_revocation_base_point->elems, 33);
+       memcpy(countersignatory_revocation_base_point_ref.compressed_form, countersignatory_revocation_base_point->elems, 33); FREE(countersignatory_revocation_base_point);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = derive_public_revocation_key(per_commitment_point_ref, countersignatory_revocation_base_point_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_TxCreationKeys_free"))) TS_TxCreationKeys_free(uint32_t this_obj) {
@@ -28893,7 +28906,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_get_per_commitment_po
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, TxCreationKeys_get_per_commitment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -28905,7 +28918,7 @@ void  __attribute__((export_name("TS_TxCreationKeys_set_per_commitment_point")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        TxCreationKeys_set_per_commitment_point(&this_ptr_conv, val_ref);
 }
 
@@ -28914,7 +28927,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_get_revocation_key"))
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, TxCreationKeys_get_revocation_key(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -28926,7 +28939,7 @@ void  __attribute__((export_name("TS_TxCreationKeys_set_revocation_key"))) TS_Tx
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        TxCreationKeys_set_revocation_key(&this_ptr_conv, val_ref);
 }
 
@@ -28935,7 +28948,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_get_broadcaster_htlc_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, TxCreationKeys_get_broadcaster_htlc_key(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -28947,7 +28960,7 @@ void  __attribute__((export_name("TS_TxCreationKeys_set_broadcaster_htlc_key")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        TxCreationKeys_set_broadcaster_htlc_key(&this_ptr_conv, val_ref);
 }
 
@@ -28956,7 +28969,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_get_countersignatory_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, TxCreationKeys_get_countersignatory_htlc_key(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -28968,7 +28981,7 @@ void  __attribute__((export_name("TS_TxCreationKeys_set_countersignatory_htlc_ke
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        TxCreationKeys_set_countersignatory_htlc_key(&this_ptr_conv, val_ref);
 }
 
@@ -28977,7 +28990,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_get_broadcaster_delay
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, TxCreationKeys_get_broadcaster_delayed_payment_key(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -28989,32 +29002,32 @@ void  __attribute__((export_name("TS_TxCreationKeys_set_broadcaster_delayed_paym
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        TxCreationKeys_set_broadcaster_delayed_payment_key(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_TxCreationKeys_new"))) TS_TxCreationKeys_new(int8_tArray per_commitment_point_arg, int8_tArray revocation_key_arg, int8_tArray broadcaster_htlc_key_arg, int8_tArray countersignatory_htlc_key_arg, int8_tArray broadcaster_delayed_payment_key_arg) {
        LDKPublicKey per_commitment_point_arg_ref;
        CHECK(per_commitment_point_arg->arr_len == 33);
-       memcpy(per_commitment_point_arg_ref.compressed_form, per_commitment_point_arg->elems, 33);
+       memcpy(per_commitment_point_arg_ref.compressed_form, per_commitment_point_arg->elems, 33); FREE(per_commitment_point_arg);
        LDKPublicKey revocation_key_arg_ref;
        CHECK(revocation_key_arg->arr_len == 33);
-       memcpy(revocation_key_arg_ref.compressed_form, revocation_key_arg->elems, 33);
+       memcpy(revocation_key_arg_ref.compressed_form, revocation_key_arg->elems, 33); FREE(revocation_key_arg);
        LDKPublicKey broadcaster_htlc_key_arg_ref;
        CHECK(broadcaster_htlc_key_arg->arr_len == 33);
-       memcpy(broadcaster_htlc_key_arg_ref.compressed_form, broadcaster_htlc_key_arg->elems, 33);
+       memcpy(broadcaster_htlc_key_arg_ref.compressed_form, broadcaster_htlc_key_arg->elems, 33); FREE(broadcaster_htlc_key_arg);
        LDKPublicKey countersignatory_htlc_key_arg_ref;
        CHECK(countersignatory_htlc_key_arg->arr_len == 33);
-       memcpy(countersignatory_htlc_key_arg_ref.compressed_form, countersignatory_htlc_key_arg->elems, 33);
+       memcpy(countersignatory_htlc_key_arg_ref.compressed_form, countersignatory_htlc_key_arg->elems, 33); FREE(countersignatory_htlc_key_arg);
        LDKPublicKey broadcaster_delayed_payment_key_arg_ref;
        CHECK(broadcaster_delayed_payment_key_arg->arr_len == 33);
-       memcpy(broadcaster_delayed_payment_key_arg_ref.compressed_form, broadcaster_delayed_payment_key_arg->elems, 33);
+       memcpy(broadcaster_delayed_payment_key_arg_ref.compressed_form, broadcaster_delayed_payment_key_arg->elems, 33); FREE(broadcaster_delayed_payment_key_arg);
        LDKTxCreationKeys ret_var = TxCreationKeys_new(per_commitment_point_arg_ref, revocation_key_arg_ref, broadcaster_htlc_key_arg_ref, countersignatory_htlc_key_arg_ref, broadcaster_delayed_payment_key_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29023,22 +29036,22 @@ uint32_t  __attribute__((export_name("TS_TxCreationKeys_new"))) TS_TxCreationKey
 
 static inline uintptr_t TxCreationKeys_clone_ptr(LDKTxCreationKeys *NONNULL_PTR arg) {
        LDKTxCreationKeys ret_var = TxCreationKeys_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_TxCreationKeys_clone_ptr"))) TS_TxCreationKeys_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_TxCreationKeys_clone_ptr"))) TS_TxCreationKeys_clone_ptr(uint32_t arg) {
        LDKTxCreationKeys arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = TxCreationKeys_clone_ptr(&arg_conv);
+       intptr_t ret_val = TxCreationKeys_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -29048,11 +29061,11 @@ uint32_t  __attribute__((export_name("TS_TxCreationKeys_clone"))) TS_TxCreationK
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKTxCreationKeys ret_var = TxCreationKeys_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29065,7 +29078,7 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_write"))) TS_TxCreati
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = TxCreationKeys_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29074,10 +29087,10 @@ int8_tArray  __attribute__((export_name("TS_TxCreationKeys_write"))) TS_TxCreati
 uint32_t  __attribute__((export_name("TS_TxCreationKeys_read"))) TS_TxCreationKeys_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = TxCreationKeys_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ChannelPublicKeys_free"))) TS_ChannelPublicKeys_free(uint32_t this_obj) {
@@ -29093,7 +29106,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_get_funding_pubkey
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelPublicKeys_get_funding_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -29105,7 +29118,7 @@ void  __attribute__((export_name("TS_ChannelPublicKeys_set_funding_pubkey"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelPublicKeys_set_funding_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -29114,7 +29127,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_get_revocation_bas
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelPublicKeys_get_revocation_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -29126,7 +29139,7 @@ void  __attribute__((export_name("TS_ChannelPublicKeys_set_revocation_basepoint"
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelPublicKeys_set_revocation_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -29135,7 +29148,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_get_payment_point"
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelPublicKeys_get_payment_point(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -29147,7 +29160,7 @@ void  __attribute__((export_name("TS_ChannelPublicKeys_set_payment_point"))) TS_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelPublicKeys_set_payment_point(&this_ptr_conv, val_ref);
 }
 
@@ -29156,7 +29169,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_get_delayed_paymen
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelPublicKeys_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -29168,7 +29181,7 @@ void  __attribute__((export_name("TS_ChannelPublicKeys_set_delayed_payment_basep
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelPublicKeys_set_delayed_payment_basepoint(&this_ptr_conv, val_ref);
 }
 
@@ -29177,7 +29190,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_get_htlc_basepoint
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ChannelPublicKeys_get_htlc_basepoint(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -29189,32 +29202,32 @@ void  __attribute__((export_name("TS_ChannelPublicKeys_set_htlc_basepoint"))) TS
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        ChannelPublicKeys_set_htlc_basepoint(&this_ptr_conv, val_ref);
 }
 
 uint32_t  __attribute__((export_name("TS_ChannelPublicKeys_new"))) TS_ChannelPublicKeys_new(int8_tArray funding_pubkey_arg, int8_tArray revocation_basepoint_arg, int8_tArray payment_point_arg, int8_tArray delayed_payment_basepoint_arg, int8_tArray htlc_basepoint_arg) {
        LDKPublicKey funding_pubkey_arg_ref;
        CHECK(funding_pubkey_arg->arr_len == 33);
-       memcpy(funding_pubkey_arg_ref.compressed_form, funding_pubkey_arg->elems, 33);
+       memcpy(funding_pubkey_arg_ref.compressed_form, funding_pubkey_arg->elems, 33); FREE(funding_pubkey_arg);
        LDKPublicKey revocation_basepoint_arg_ref;
        CHECK(revocation_basepoint_arg->arr_len == 33);
-       memcpy(revocation_basepoint_arg_ref.compressed_form, revocation_basepoint_arg->elems, 33);
+       memcpy(revocation_basepoint_arg_ref.compressed_form, revocation_basepoint_arg->elems, 33); FREE(revocation_basepoint_arg);
        LDKPublicKey payment_point_arg_ref;
        CHECK(payment_point_arg->arr_len == 33);
-       memcpy(payment_point_arg_ref.compressed_form, payment_point_arg->elems, 33);
+       memcpy(payment_point_arg_ref.compressed_form, payment_point_arg->elems, 33); FREE(payment_point_arg);
        LDKPublicKey delayed_payment_basepoint_arg_ref;
        CHECK(delayed_payment_basepoint_arg->arr_len == 33);
-       memcpy(delayed_payment_basepoint_arg_ref.compressed_form, delayed_payment_basepoint_arg->elems, 33);
+       memcpy(delayed_payment_basepoint_arg_ref.compressed_form, delayed_payment_basepoint_arg->elems, 33); FREE(delayed_payment_basepoint_arg);
        LDKPublicKey htlc_basepoint_arg_ref;
        CHECK(htlc_basepoint_arg->arr_len == 33);
-       memcpy(htlc_basepoint_arg_ref.compressed_form, htlc_basepoint_arg->elems, 33);
+       memcpy(htlc_basepoint_arg_ref.compressed_form, htlc_basepoint_arg->elems, 33); FREE(htlc_basepoint_arg);
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_new(funding_pubkey_arg_ref, revocation_basepoint_arg_ref, payment_point_arg_ref, delayed_payment_basepoint_arg_ref, htlc_basepoint_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29223,22 +29236,22 @@ uint32_t  __attribute__((export_name("TS_ChannelPublicKeys_new"))) TS_ChannelPub
 
 static inline uintptr_t ChannelPublicKeys_clone_ptr(LDKChannelPublicKeys *NONNULL_PTR arg) {
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelPublicKeys_clone_ptr"))) TS_ChannelPublicKeys_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelPublicKeys_clone_ptr"))) TS_ChannelPublicKeys_clone_ptr(uint32_t arg) {
        LDKChannelPublicKeys arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelPublicKeys_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelPublicKeys_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -29248,11 +29261,11 @@ uint32_t  __attribute__((export_name("TS_ChannelPublicKeys_clone"))) TS_ChannelP
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29265,7 +29278,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_write"))) TS_Chann
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelPublicKeys_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29274,37 +29287,37 @@ int8_tArray  __attribute__((export_name("TS_ChannelPublicKeys_write"))) TS_Chann
 uint32_t  __attribute__((export_name("TS_ChannelPublicKeys_read"))) TS_ChannelPublicKeys_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = ChannelPublicKeys_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_TxCreationKeys_derive_new"))) TS_TxCreationKeys_derive_new(int8_tArray per_commitment_point, int8_tArray broadcaster_delayed_payment_base, int8_tArray broadcaster_htlc_base, int8_tArray countersignatory_revocation_base, int8_tArray countersignatory_htlc_base) {
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        LDKPublicKey broadcaster_delayed_payment_base_ref;
        CHECK(broadcaster_delayed_payment_base->arr_len == 33);
-       memcpy(broadcaster_delayed_payment_base_ref.compressed_form, broadcaster_delayed_payment_base->elems, 33);
+       memcpy(broadcaster_delayed_payment_base_ref.compressed_form, broadcaster_delayed_payment_base->elems, 33); FREE(broadcaster_delayed_payment_base);
        LDKPublicKey broadcaster_htlc_base_ref;
        CHECK(broadcaster_htlc_base->arr_len == 33);
-       memcpy(broadcaster_htlc_base_ref.compressed_form, broadcaster_htlc_base->elems, 33);
+       memcpy(broadcaster_htlc_base_ref.compressed_form, broadcaster_htlc_base->elems, 33); FREE(broadcaster_htlc_base);
        LDKPublicKey countersignatory_revocation_base_ref;
        CHECK(countersignatory_revocation_base->arr_len == 33);
-       memcpy(countersignatory_revocation_base_ref.compressed_form, countersignatory_revocation_base->elems, 33);
+       memcpy(countersignatory_revocation_base_ref.compressed_form, countersignatory_revocation_base->elems, 33); FREE(countersignatory_revocation_base);
        LDKPublicKey countersignatory_htlc_base_ref;
        CHECK(countersignatory_htlc_base->arr_len == 33);
-       memcpy(countersignatory_htlc_base_ref.compressed_form, countersignatory_htlc_base->elems, 33);
+       memcpy(countersignatory_htlc_base_ref.compressed_form, countersignatory_htlc_base->elems, 33); FREE(countersignatory_htlc_base);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = TxCreationKeys_derive_new(per_commitment_point_ref, broadcaster_delayed_payment_base_ref, broadcaster_htlc_base_ref, countersignatory_revocation_base_ref, countersignatory_htlc_base_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_TxCreationKeys_from_channel_static_keys"))) TS_TxCreationKeys_from_channel_static_keys(int8_tArray per_commitment_point, uint32_t broadcaster_keys, uint32_t countersignatory_keys) {
        LDKPublicKey per_commitment_point_ref;
        CHECK(per_commitment_point->arr_len == 33);
-       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33);
+       memcpy(per_commitment_point_ref.compressed_form, per_commitment_point->elems, 33); FREE(per_commitment_point);
        LDKChannelPublicKeys broadcaster_keys_conv;
        broadcaster_keys_conv.inner = (void*)(broadcaster_keys & (~1));
        broadcaster_keys_conv.is_owned = false;
@@ -29315,18 +29328,18 @@ uint32_t  __attribute__((export_name("TS_TxCreationKeys_from_channel_static_keys
        CHECK_INNER_FIELD_ACCESS_OR_NULL(countersignatory_keys_conv);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = TxCreationKeys_from_channel_static_keys(per_commitment_point_ref, &broadcaster_keys_conv, &countersignatory_keys_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_get_revokeable_redeemscript"))) TS_get_revokeable_redeemscript(int8_tArray revocation_key, int16_t contest_delay, int8_tArray broadcaster_delayed_payment_key) {
        LDKPublicKey revocation_key_ref;
        CHECK(revocation_key->arr_len == 33);
-       memcpy(revocation_key_ref.compressed_form, revocation_key->elems, 33);
+       memcpy(revocation_key_ref.compressed_form, revocation_key->elems, 33); FREE(revocation_key);
        LDKPublicKey broadcaster_delayed_payment_key_ref;
        CHECK(broadcaster_delayed_payment_key->arr_len == 33);
-       memcpy(broadcaster_delayed_payment_key_ref.compressed_form, broadcaster_delayed_payment_key->elems, 33);
+       memcpy(broadcaster_delayed_payment_key_ref.compressed_form, broadcaster_delayed_payment_key->elems, 33); FREE(broadcaster_delayed_payment_key);
        LDKCVec_u8Z ret_var = get_revokeable_redeemscript(revocation_key_ref, contest_delay, broadcaster_delayed_payment_key_ref);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29396,7 +29409,7 @@ int8_tArray  __attribute__((export_name("TS_HTLCOutputInCommitment_get_payment_h
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *HTLCOutputInCommitment_get_payment_hash(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -29408,7 +29421,7 @@ void  __attribute__((export_name("TS_HTLCOutputInCommitment_set_payment_hash")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        HTLCOutputInCommitment_set_payment_hash(&this_ptr_conv, val_ref);
 }
 
@@ -29419,7 +29432,7 @@ uint32_t  __attribute__((export_name("TS_HTLCOutputInCommitment_get_transaction_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = HTLCOutputInCommitment_get_transaction_output_index(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -29428,27 +29441,27 @@ void  __attribute__((export_name("TS_HTLCOutputInCommitment_set_transaction_outp
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
-       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)val) & ~1));
        HTLCOutputInCommitment_set_transaction_output_index(&this_ptr_conv, val_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_HTLCOutputInCommitment_new"))) TS_HTLCOutputInCommitment_new(jboolean offered_arg, int64_t amount_msat_arg, int32_t cltv_expiry_arg, int8_tArray payment_hash_arg, uint32_t transaction_output_index_arg) {
        LDKThirtyTwoBytes payment_hash_arg_ref;
        CHECK(payment_hash_arg->arr_len == 32);
-       memcpy(payment_hash_arg_ref.data, payment_hash_arg->elems, 32);
-       void* transaction_output_index_arg_ptr = (void*)(((uint64_t)transaction_output_index_arg) & ~1);
+       memcpy(payment_hash_arg_ref.data, payment_hash_arg->elems, 32); FREE(payment_hash_arg);
+       void* transaction_output_index_arg_ptr = (void*)(((uintptr_t)transaction_output_index_arg) & ~1);
        CHECK_ACCESS(transaction_output_index_arg_ptr);
        LDKCOption_u32Z transaction_output_index_arg_conv = *(LDKCOption_u32Z*)(transaction_output_index_arg_ptr);
-       transaction_output_index_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)transaction_output_index_arg) & ~1));
+       transaction_output_index_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)transaction_output_index_arg) & ~1));
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_new(offered_arg, amount_msat_arg, cltv_expiry_arg, payment_hash_arg_ref, transaction_output_index_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29457,22 +29470,22 @@ uint32_t  __attribute__((export_name("TS_HTLCOutputInCommitment_new"))) TS_HTLCO
 
 static inline uintptr_t HTLCOutputInCommitment_clone_ptr(LDKHTLCOutputInCommitment *NONNULL_PTR arg) {
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_HTLCOutputInCommitment_clone_ptr"))) TS_HTLCOutputInCommitment_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_HTLCOutputInCommitment_clone_ptr"))) TS_HTLCOutputInCommitment_clone_ptr(uint32_t arg) {
        LDKHTLCOutputInCommitment arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = HTLCOutputInCommitment_clone_ptr(&arg_conv);
+       intptr_t ret_val = HTLCOutputInCommitment_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -29482,11 +29495,11 @@ uint32_t  __attribute__((export_name("TS_HTLCOutputInCommitment_clone"))) TS_HTL
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29499,7 +29512,7 @@ int8_tArray  __attribute__((export_name("TS_HTLCOutputInCommitment_write"))) TS_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = HTLCOutputInCommitment_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29508,10 +29521,10 @@ int8_tArray  __attribute__((export_name("TS_HTLCOutputInCommitment_write"))) TS_
 uint32_t  __attribute__((export_name("TS_HTLCOutputInCommitment_read"))) TS_HTLCOutputInCommitment_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = HTLCOutputInCommitment_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_get_htlc_redeemscript"))) TS_get_htlc_redeemscript(uint32_t htlc, jboolean opt_anchors, uint32_t keys) {
@@ -29524,7 +29537,7 @@ int8_tArray  __attribute__((export_name("TS_get_htlc_redeemscript"))) TS_get_htl
        keys_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(keys_conv);
        LDKCVec_u8Z ret_var = get_htlc_redeemscript(&htlc_conv, opt_anchors, &keys_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29533,12 +29546,12 @@ int8_tArray  __attribute__((export_name("TS_get_htlc_redeemscript"))) TS_get_htl
 int8_tArray  __attribute__((export_name("TS_make_funding_redeemscript"))) TS_make_funding_redeemscript(int8_tArray broadcaster, int8_tArray countersignatory) {
        LDKPublicKey broadcaster_ref;
        CHECK(broadcaster->arr_len == 33);
-       memcpy(broadcaster_ref.compressed_form, broadcaster->elems, 33);
+       memcpy(broadcaster_ref.compressed_form, broadcaster->elems, 33); FREE(broadcaster);
        LDKPublicKey countersignatory_ref;
        CHECK(countersignatory->arr_len == 33);
-       memcpy(countersignatory_ref.compressed_form, countersignatory->elems, 33);
+       memcpy(countersignatory_ref.compressed_form, countersignatory->elems, 33); FREE(countersignatory);
        LDKCVec_u8Z ret_var = make_funding_redeemscript(broadcaster_ref, countersignatory_ref);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29547,7 +29560,7 @@ int8_tArray  __attribute__((export_name("TS_make_funding_redeemscript"))) TS_mak
 int8_tArray  __attribute__((export_name("TS_build_htlc_transaction"))) TS_build_htlc_transaction(int8_tArray commitment_txid, int32_t feerate_per_kw, int16_t contest_delay, uint32_t htlc, jboolean opt_anchors, int8_tArray broadcaster_delayed_payment_key, int8_tArray revocation_key) {
        unsigned char commitment_txid_arr[32];
        CHECK(commitment_txid->arr_len == 32);
-       memcpy(commitment_txid_arr, commitment_txid->elems, 32);
+       memcpy(commitment_txid_arr, commitment_txid->elems, 32); FREE(commitment_txid);
        unsigned char (*commitment_txid_ref)[32] = &commitment_txid_arr;
        LDKHTLCOutputInCommitment htlc_conv;
        htlc_conv.inner = (void*)(htlc & (~1));
@@ -29555,12 +29568,12 @@ int8_tArray  __attribute__((export_name("TS_build_htlc_transaction"))) TS_build_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
        LDKPublicKey broadcaster_delayed_payment_key_ref;
        CHECK(broadcaster_delayed_payment_key->arr_len == 33);
-       memcpy(broadcaster_delayed_payment_key_ref.compressed_form, broadcaster_delayed_payment_key->elems, 33);
+       memcpy(broadcaster_delayed_payment_key_ref.compressed_form, broadcaster_delayed_payment_key->elems, 33); FREE(broadcaster_delayed_payment_key);
        LDKPublicKey revocation_key_ref;
        CHECK(revocation_key->arr_len == 33);
-       memcpy(revocation_key_ref.compressed_form, revocation_key->elems, 33);
+       memcpy(revocation_key_ref.compressed_form, revocation_key->elems, 33); FREE(revocation_key);
        LDKTransaction ret_var = build_htlc_transaction(commitment_txid_ref, feerate_per_kw, contest_delay, &htlc_conv, opt_anchors, broadcaster_delayed_payment_key_ref, revocation_key_ref);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        Transaction_free(ret_var);
        return ret_arr;
@@ -29569,9 +29582,9 @@ int8_tArray  __attribute__((export_name("TS_build_htlc_transaction"))) TS_build_
 int8_tArray  __attribute__((export_name("TS_get_anchor_redeemscript"))) TS_get_anchor_redeemscript(int8_tArray funding_pubkey) {
        LDKPublicKey funding_pubkey_ref;
        CHECK(funding_pubkey->arr_len == 33);
-       memcpy(funding_pubkey_ref.compressed_form, funding_pubkey->elems, 33);
+       memcpy(funding_pubkey_ref.compressed_form, funding_pubkey->elems, 33); FREE(funding_pubkey);
        LDKCVec_u8Z ret_var = get_anchor_redeemscript(funding_pubkey_ref);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29591,11 +29604,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_get_holder
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelPublicKeys ret_var = ChannelTransactionParameters_get_holder_pubkeys(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29655,12 +29668,12 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_get_counte
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCounterpartyChannelTransactionParameters ret_var = ChannelTransactionParameters_get_counterparty_parameters(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -29687,12 +29700,12 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_get_fundin
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKOutPoint ret_var = ChannelTransactionParameters_get_funding_outpoint(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -29749,11 +29762,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_new"))) TS
        funding_outpoint_arg_conv = OutPoint_clone(&funding_outpoint_arg_conv);
        LDKCOption_NoneZ opt_anchors_arg_conv = LDKCOption_NoneZ_from_js(opt_anchors_arg);
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_new(holder_pubkeys_arg_conv, holder_selected_contest_delay_arg, is_outbound_from_holder_arg, counterparty_parameters_arg_conv, funding_outpoint_arg_conv, opt_anchors_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29762,22 +29775,22 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_new"))) TS
 
 static inline uintptr_t ChannelTransactionParameters_clone_ptr(LDKChannelTransactionParameters *NONNULL_PTR arg) {
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelTransactionParameters_clone_ptr"))) TS_ChannelTransactionParameters_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelTransactionParameters_clone_ptr"))) TS_ChannelTransactionParameters_clone_ptr(uint32_t arg) {
        LDKChannelTransactionParameters arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelTransactionParameters_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelTransactionParameters_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -29787,11 +29800,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_clone")))
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29812,11 +29825,11 @@ uint32_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameter
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelPublicKeys ret_var = CounterpartyChannelTransactionParameters_get_pubkeys(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29860,11 +29873,11 @@ uint32_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameter
        CHECK_INNER_FIELD_ACCESS_OR_NULL(pubkeys_arg_conv);
        pubkeys_arg_conv = ChannelPublicKeys_clone(&pubkeys_arg_conv);
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_new(pubkeys_arg_conv, selected_contest_delay_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29873,22 +29886,22 @@ uint32_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameter
 
 static inline uintptr_t CounterpartyChannelTransactionParameters_clone_ptr(LDKCounterpartyChannelTransactionParameters *NONNULL_PTR arg) {
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameters_clone_ptr"))) TS_CounterpartyChannelTransactionParameters_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameters_clone_ptr"))) TS_CounterpartyChannelTransactionParameters_clone_ptr(uint32_t arg) {
        LDKCounterpartyChannelTransactionParameters arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = CounterpartyChannelTransactionParameters_clone_ptr(&arg_conv);
+       intptr_t ret_val = CounterpartyChannelTransactionParameters_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -29898,11 +29911,11 @@ uint32_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameter
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29924,11 +29937,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_as_holder_
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKDirectedChannelTransactionParameters ret_var = ChannelTransactionParameters_as_holder_broadcastable(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29941,11 +29954,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_as_counter
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKDirectedChannelTransactionParameters ret_var = ChannelTransactionParameters_as_counterparty_broadcastable(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -29958,7 +29971,7 @@ int8_tArray  __attribute__((export_name("TS_CounterpartyChannelTransactionParame
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = CounterpartyChannelTransactionParameters_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29967,10 +29980,10 @@ int8_tArray  __attribute__((export_name("TS_CounterpartyChannelTransactionParame
 uint32_t  __attribute__((export_name("TS_CounterpartyChannelTransactionParameters_read"))) TS_CounterpartyChannelTransactionParameters_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CounterpartyChannelTransactionParameters_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelTransactionParameters_write"))) TS_ChannelTransactionParameters_write(uint32_t obj) {
@@ -29979,7 +29992,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelTransactionParameters_write")
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelTransactionParameters_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -29988,10 +30001,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelTransactionParameters_write")
 uint32_t  __attribute__((export_name("TS_ChannelTransactionParameters_read"))) TS_ChannelTransactionParameters_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = ChannelTransactionParameters_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_DirectedChannelTransactionParameters_free"))) TS_DirectedChannelTransactionParameters_free(uint32_t this_obj) {
@@ -30008,11 +30021,11 @@ uint32_t  __attribute__((export_name("TS_DirectedChannelTransactionParameters_br
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelPublicKeys ret_var = DirectedChannelTransactionParameters_broadcaster_pubkeys(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30025,11 +30038,11 @@ uint32_t  __attribute__((export_name("TS_DirectedChannelTransactionParameters_co
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKChannelPublicKeys ret_var = DirectedChannelTransactionParameters_countersignatory_pubkeys(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30060,11 +30073,11 @@ uint32_t  __attribute__((export_name("TS_DirectedChannelTransactionParameters_fu
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKOutPoint ret_var = DirectedChannelTransactionParameters_funding_outpoint(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30093,7 +30106,7 @@ int8_tArray  __attribute__((export_name("TS_HolderCommitmentTransaction_get_coun
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(64);
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, HolderCommitmentTransaction_get_counterparty_sig(&this_ptr_conv).compact_form, 64);
        return ret_arr;
 }
@@ -30105,7 +30118,7 @@ void  __attribute__((export_name("TS_HolderCommitmentTransaction_set_counterpart
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKSignature val_ref;
        CHECK(val->arr_len == 64);
-       memcpy(val_ref.compact_form, val->elems, 64);
+       memcpy(val_ref.compact_form, val->elems, 64); FREE(val);
        HolderCommitmentTransaction_set_counterparty_sig(&this_ptr_conv, val_ref);
 }
 
@@ -30120,12 +30133,12 @@ void  __attribute__((export_name("TS_HolderCommitmentTransaction_set_counterpart
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                val_constr.data = NULL;
-       int8_tArray* val_vals = (void*) val->elems;
+       int8_tArray* val_vals = (void*) val->elems /* XXX val leaks */;
        for (size_t m = 0; m < val_constr.datalen; m++) {
                int8_tArray val_conv_12 = val_vals[m];
                LDKSignature val_conv_12_ref;
                CHECK(val_conv_12->arr_len == 64);
-               memcpy(val_conv_12_ref.compact_form, val_conv_12->elems, 64);
+               memcpy(val_conv_12_ref.compact_form, val_conv_12->elems, 64); FREE(val_conv_12);
                val_constr.data[m] = val_conv_12_ref;
        }
        HolderCommitmentTransaction_set_counterparty_htlc_sigs(&this_ptr_conv, val_constr);
@@ -30133,22 +30146,22 @@ void  __attribute__((export_name("TS_HolderCommitmentTransaction_set_counterpart
 
 static inline uintptr_t HolderCommitmentTransaction_clone_ptr(LDKHolderCommitmentTransaction *NONNULL_PTR arg) {
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_HolderCommitmentTransaction_clone_ptr"))) TS_HolderCommitmentTransaction_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_HolderCommitmentTransaction_clone_ptr"))) TS_HolderCommitmentTransaction_clone_ptr(uint32_t arg) {
        LDKHolderCommitmentTransaction arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = HolderCommitmentTransaction_clone_ptr(&arg_conv);
+       intptr_t ret_val = HolderCommitmentTransaction_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30158,11 +30171,11 @@ uint32_t  __attribute__((export_name("TS_HolderCommitmentTransaction_clone"))) T
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30175,7 +30188,7 @@ int8_tArray  __attribute__((export_name("TS_HolderCommitmentTransaction_write"))
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = HolderCommitmentTransaction_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -30184,10 +30197,10 @@ int8_tArray  __attribute__((export_name("TS_HolderCommitmentTransaction_write"))
 uint32_t  __attribute__((export_name("TS_HolderCommitmentTransaction_read"))) TS_HolderCommitmentTransaction_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = HolderCommitmentTransaction_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_HolderCommitmentTransaction_new"))) TS_HolderCommitmentTransaction_new(uint32_t commitment_tx, int8_tArray counterparty_sig, ptrArray counterparty_htlc_sigs, int8_tArray holder_funding_key, int8_tArray counterparty_funding_key) {
@@ -30198,33 +30211,33 @@ uint32_t  __attribute__((export_name("TS_HolderCommitmentTransaction_new"))) TS_
        commitment_tx_conv = CommitmentTransaction_clone(&commitment_tx_conv);
        LDKSignature counterparty_sig_ref;
        CHECK(counterparty_sig->arr_len == 64);
-       memcpy(counterparty_sig_ref.compact_form, counterparty_sig->elems, 64);
+       memcpy(counterparty_sig_ref.compact_form, counterparty_sig->elems, 64); FREE(counterparty_sig);
        LDKCVec_SignatureZ counterparty_htlc_sigs_constr;
        counterparty_htlc_sigs_constr.datalen = counterparty_htlc_sigs->arr_len;
        if (counterparty_htlc_sigs_constr.datalen > 0)
                counterparty_htlc_sigs_constr.data = MALLOC(counterparty_htlc_sigs_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
        else
                counterparty_htlc_sigs_constr.data = NULL;
-       int8_tArray* counterparty_htlc_sigs_vals = (void*) counterparty_htlc_sigs->elems;
+       int8_tArray* counterparty_htlc_sigs_vals = (void*) counterparty_htlc_sigs->elems /* XXX counterparty_htlc_sigs leaks */;
        for (size_t m = 0; m < counterparty_htlc_sigs_constr.datalen; m++) {
                int8_tArray counterparty_htlc_sigs_conv_12 = counterparty_htlc_sigs_vals[m];
                LDKSignature counterparty_htlc_sigs_conv_12_ref;
                CHECK(counterparty_htlc_sigs_conv_12->arr_len == 64);
-               memcpy(counterparty_htlc_sigs_conv_12_ref.compact_form, counterparty_htlc_sigs_conv_12->elems, 64);
+               memcpy(counterparty_htlc_sigs_conv_12_ref.compact_form, counterparty_htlc_sigs_conv_12->elems, 64); FREE(counterparty_htlc_sigs_conv_12);
                counterparty_htlc_sigs_constr.data[m] = counterparty_htlc_sigs_conv_12_ref;
        }
        LDKPublicKey holder_funding_key_ref;
        CHECK(holder_funding_key->arr_len == 33);
-       memcpy(holder_funding_key_ref.compressed_form, holder_funding_key->elems, 33);
+       memcpy(holder_funding_key_ref.compressed_form, holder_funding_key->elems, 33); FREE(holder_funding_key);
        LDKPublicKey counterparty_funding_key_ref;
        CHECK(counterparty_funding_key->arr_len == 33);
-       memcpy(counterparty_funding_key_ref.compressed_form, counterparty_funding_key->elems, 33);
+       memcpy(counterparty_funding_key_ref.compressed_form, counterparty_funding_key->elems, 33); FREE(counterparty_funding_key);
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_new(commitment_tx_conv, counterparty_sig_ref, counterparty_htlc_sigs_constr, holder_funding_key_ref, counterparty_funding_key_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30245,7 +30258,7 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_get_trans
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKTransaction ret_var = BuiltCommitmentTransaction_get_transaction(&this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        Transaction_free(ret_var);
        return ret_arr;
@@ -30259,7 +30272,7 @@ void  __attribute__((export_name("TS_BuiltCommitmentTransaction_set_transaction"
        LDKTransaction val_ref;
        val_ref.datalen = val->arr_len;
        val_ref.data = MALLOC(val_ref.datalen, "LDKTransaction Bytes");
-       memcpy(val_ref.data, val->elems, val_ref.datalen);
+       memcpy(val_ref.data, val->elems, val_ref.datalen); FREE(val);
        val_ref.data_is_owned = true;
        BuiltCommitmentTransaction_set_transaction(&this_ptr_conv, val_ref);
 }
@@ -30269,7 +30282,7 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_get_txid"
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *BuiltCommitmentTransaction_get_txid(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -30281,7 +30294,7 @@ void  __attribute__((export_name("TS_BuiltCommitmentTransaction_set_txid"))) TS_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        BuiltCommitmentTransaction_set_txid(&this_ptr_conv, val_ref);
 }
 
@@ -30289,17 +30302,17 @@ uint32_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_new"))) TS_B
        LDKTransaction transaction_arg_ref;
        transaction_arg_ref.datalen = transaction_arg->arr_len;
        transaction_arg_ref.data = MALLOC(transaction_arg_ref.datalen, "LDKTransaction Bytes");
-       memcpy(transaction_arg_ref.data, transaction_arg->elems, transaction_arg_ref.datalen);
+       memcpy(transaction_arg_ref.data, transaction_arg->elems, transaction_arg_ref.datalen); FREE(transaction_arg);
        transaction_arg_ref.data_is_owned = true;
        LDKThirtyTwoBytes txid_arg_ref;
        CHECK(txid_arg->arr_len == 32);
-       memcpy(txid_arg_ref.data, txid_arg->elems, 32);
+       memcpy(txid_arg_ref.data, txid_arg->elems, 32); FREE(txid_arg);
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_new(transaction_arg_ref, txid_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30308,22 +30321,22 @@ uint32_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_new"))) TS_B
 
 static inline uintptr_t BuiltCommitmentTransaction_clone_ptr(LDKBuiltCommitmentTransaction *NONNULL_PTR arg) {
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_clone_ptr"))) TS_BuiltCommitmentTransaction_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_clone_ptr"))) TS_BuiltCommitmentTransaction_clone_ptr(uint32_t arg) {
        LDKBuiltCommitmentTransaction arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = BuiltCommitmentTransaction_clone_ptr(&arg_conv);
+       intptr_t ret_val = BuiltCommitmentTransaction_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30333,11 +30346,11 @@ uint32_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_clone"))) TS
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30350,7 +30363,7 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_write")))
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = BuiltCommitmentTransaction_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -30359,10 +30372,10 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_write")))
 uint32_t  __attribute__((export_name("TS_BuiltCommitmentTransaction_read"))) TS_BuiltCommitmentTransaction_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = BuiltCommitmentTransaction_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_get_sighash_all"))) TS_BuiltCommitmentTransaction_get_sighash_all(uint32_t this_arg, int8_tArray funding_redeemscript, int64_t channel_value_satoshis) {
@@ -30372,8 +30385,8 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_get_sigha
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = funding_redeemscript->arr_len;
-       funding_redeemscript_ref.data = funding_redeemscript->elems;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       funding_redeemscript_ref.data = funding_redeemscript->elems /* XXX funding_redeemscript leaks */;
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, BuiltCommitmentTransaction_get_sighash_all(&this_arg_conv, funding_redeemscript_ref, channel_value_satoshis).data, 32);
        return ret_arr;
 }
@@ -30385,12 +30398,12 @@ int8_tArray  __attribute__((export_name("TS_BuiltCommitmentTransaction_sign")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char funding_key_arr[32];
        CHECK(funding_key->arr_len == 32);
-       memcpy(funding_key_arr, funding_key->elems, 32);
+       memcpy(funding_key_arr, funding_key->elems, 32); FREE(funding_key);
        unsigned char (*funding_key_ref)[32] = &funding_key_arr;
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = funding_redeemscript->arr_len;
-       funding_redeemscript_ref.data = funding_redeemscript->elems;
-       int8_tArray ret_arr = init_int8_tArray(64);
+       funding_redeemscript_ref.data = funding_redeemscript->elems /* XXX funding_redeemscript leaks */;
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, BuiltCommitmentTransaction_sign(&this_arg_conv, funding_key_ref, funding_redeemscript_ref, channel_value_satoshis).compact_form, 64);
        return ret_arr;
 }
@@ -30405,22 +30418,22 @@ void  __attribute__((export_name("TS_ClosingTransaction_free"))) TS_ClosingTrans
 
 static inline uintptr_t ClosingTransaction_clone_ptr(LDKClosingTransaction *NONNULL_PTR arg) {
        LDKClosingTransaction ret_var = ClosingTransaction_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ClosingTransaction_clone_ptr"))) TS_ClosingTransaction_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ClosingTransaction_clone_ptr"))) TS_ClosingTransaction_clone_ptr(uint32_t arg) {
        LDKClosingTransaction arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ClosingTransaction_clone_ptr(&arg_conv);
+       intptr_t ret_val = ClosingTransaction_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30430,11 +30443,11 @@ uint32_t  __attribute__((export_name("TS_ClosingTransaction_clone"))) TS_Closing
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKClosingTransaction ret_var = ClosingTransaction_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30454,22 +30467,22 @@ uint32_t  __attribute__((export_name("TS_ClosingTransaction_new"))) TS_ClosingTr
        LDKCVec_u8Z to_holder_script_ref;
        to_holder_script_ref.datalen = to_holder_script->arr_len;
        to_holder_script_ref.data = MALLOC(to_holder_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(to_holder_script_ref.data, to_holder_script->elems, to_holder_script_ref.datalen);
+       memcpy(to_holder_script_ref.data, to_holder_script->elems, to_holder_script_ref.datalen); FREE(to_holder_script);
        LDKCVec_u8Z to_counterparty_script_ref;
        to_counterparty_script_ref.datalen = to_counterparty_script->arr_len;
        to_counterparty_script_ref.data = MALLOC(to_counterparty_script_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(to_counterparty_script_ref.data, to_counterparty_script->elems, to_counterparty_script_ref.datalen);
+       memcpy(to_counterparty_script_ref.data, to_counterparty_script->elems, to_counterparty_script_ref.datalen); FREE(to_counterparty_script);
        LDKOutPoint funding_outpoint_conv;
        funding_outpoint_conv.inner = (void*)(funding_outpoint & (~1));
        funding_outpoint_conv.is_owned = (funding_outpoint & 1) || (funding_outpoint == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_conv);
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKClosingTransaction ret_var = ClosingTransaction_new(to_holder_value_sat, to_counterparty_value_sat, to_holder_script_ref, to_counterparty_script_ref, funding_outpoint_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30482,11 +30495,11 @@ uint32_t  __attribute__((export_name("TS_ClosingTransaction_trust"))) TS_Closing
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKTrustedClosingTransaction ret_var = ClosingTransaction_trust(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30505,7 +30518,7 @@ uint32_t  __attribute__((export_name("TS_ClosingTransaction_verify"))) TS_Closin
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = ClosingTransaction_verify(&this_arg_conv, funding_outpoint_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int64_t  __attribute__((export_name("TS_ClosingTransaction_to_holder_value_sat"))) TS_ClosingTransaction_to_holder_value_sat(uint32_t this_arg) {
@@ -30532,7 +30545,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingTransaction_to_holder_script"
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKu8slice ret_var = ClosingTransaction_to_holder_script(&this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -30543,7 +30556,7 @@ int8_tArray  __attribute__((export_name("TS_ClosingTransaction_to_counterparty_s
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKu8slice ret_var = ClosingTransaction_to_counterparty_script(&this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -30562,7 +30575,7 @@ int8_tArray  __attribute__((export_name("TS_TrustedClosingTransaction_built_tran
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKTransaction ret_var = TrustedClosingTransaction_built_transaction(&this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        Transaction_free(ret_var);
        return ret_arr;
@@ -30575,8 +30588,8 @@ int8_tArray  __attribute__((export_name("TS_TrustedClosingTransaction_get_sighas
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = funding_redeemscript->arr_len;
-       funding_redeemscript_ref.data = funding_redeemscript->elems;
-       int8_tArray ret_arr = init_int8_tArray(32);
+       funding_redeemscript_ref.data = funding_redeemscript->elems /* XXX funding_redeemscript leaks */;
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, TrustedClosingTransaction_get_sighash_all(&this_arg_conv, funding_redeemscript_ref, channel_value_satoshis).data, 32);
        return ret_arr;
 }
@@ -30588,12 +30601,12 @@ int8_tArray  __attribute__((export_name("TS_TrustedClosingTransaction_sign"))) T
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char funding_key_arr[32];
        CHECK(funding_key->arr_len == 32);
-       memcpy(funding_key_arr, funding_key->elems, 32);
+       memcpy(funding_key_arr, funding_key->elems, 32); FREE(funding_key);
        unsigned char (*funding_key_ref)[32] = &funding_key_arr;
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = funding_redeemscript->arr_len;
-       funding_redeemscript_ref.data = funding_redeemscript->elems;
-       int8_tArray ret_arr = init_int8_tArray(64);
+       funding_redeemscript_ref.data = funding_redeemscript->elems /* XXX funding_redeemscript leaks */;
+       int8_tArray ret_arr = init_int8_tArray(64, __LINE__);
        memcpy(ret_arr->elems, TrustedClosingTransaction_sign(&this_arg_conv, funding_key_ref, funding_redeemscript_ref, channel_value_satoshis).compact_form, 64);
        return ret_arr;
 }
@@ -30608,22 +30621,22 @@ void  __attribute__((export_name("TS_CommitmentTransaction_free"))) TS_Commitmen
 
 static inline uintptr_t CommitmentTransaction_clone_ptr(LDKCommitmentTransaction *NONNULL_PTR arg) {
        LDKCommitmentTransaction ret_var = CommitmentTransaction_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_CommitmentTransaction_clone_ptr"))) TS_CommitmentTransaction_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_CommitmentTransaction_clone_ptr"))) TS_CommitmentTransaction_clone_ptr(uint32_t arg) {
        LDKCommitmentTransaction arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = CommitmentTransaction_clone_ptr(&arg_conv);
+       intptr_t ret_val = CommitmentTransaction_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30633,11 +30646,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentTransaction_clone"))) TS_Comm
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKCommitmentTransaction ret_var = CommitmentTransaction_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30650,7 +30663,7 @@ int8_tArray  __attribute__((export_name("TS_CommitmentTransaction_write"))) TS_C
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = CommitmentTransaction_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -30659,10 +30672,10 @@ int8_tArray  __attribute__((export_name("TS_CommitmentTransaction_write"))) TS_C
 uint32_t  __attribute__((export_name("TS_CommitmentTransaction_read"))) TS_CommitmentTransaction_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CommitmentTransaction_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int64_t  __attribute__((export_name("TS_CommitmentTransaction_commitment_number"))) TS_CommitmentTransaction_commitment_number(uint32_t this_arg) {
@@ -30707,11 +30720,11 @@ uint32_t  __attribute__((export_name("TS_CommitmentTransaction_trust"))) TS_Comm
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKTrustedCommitmentTransaction ret_var = CommitmentTransaction_trust(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30737,7 +30750,7 @@ uint32_t  __attribute__((export_name("TS_CommitmentTransaction_verify"))) TS_Com
        CHECK_INNER_FIELD_ACCESS_OR_NULL(countersignatory_keys_conv);
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CommitmentTransaction_verify(&this_arg_conv, &channel_parameters_conv, &broadcaster_keys_conv, &countersignatory_keys_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_TrustedCommitmentTransaction_free"))) TS_TrustedCommitmentTransaction_free(uint32_t this_obj) {
@@ -30753,7 +30766,7 @@ int8_tArray  __attribute__((export_name("TS_TrustedCommitmentTransaction_txid"))
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, TrustedCommitmentTransaction_txid(&this_arg_conv).data, 32);
        return ret_arr;
 }
@@ -30764,11 +30777,11 @@ uint32_t  __attribute__((export_name("TS_TrustedCommitmentTransaction_built_tran
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKBuiltCommitmentTransaction ret_var = TrustedCommitmentTransaction_built_transaction(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30781,11 +30794,11 @@ uint32_t  __attribute__((export_name("TS_TrustedCommitmentTransaction_keys"))) T
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKTxCreationKeys ret_var = TrustedCommitmentTransaction_keys(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30808,7 +30821,7 @@ uint32_t  __attribute__((export_name("TS_TrustedCommitmentTransaction_get_htlc_s
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        unsigned char htlc_base_key_arr[32];
        CHECK(htlc_base_key->arr_len == 32);
-       memcpy(htlc_base_key_arr, htlc_base_key->elems, 32);
+       memcpy(htlc_base_key_arr, htlc_base_key->elems, 32); FREE(htlc_base_key);
        unsigned char (*htlc_base_key_ref)[32] = &htlc_base_key_arr;
        LDKDirectedChannelTransactionParameters channel_parameters_conv;
        channel_parameters_conv.inner = (void*)(channel_parameters & (~1));
@@ -30816,16 +30829,16 @@ uint32_t  __attribute__((export_name("TS_TrustedCommitmentTransaction_get_htlc_s
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_conv);
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = TrustedCommitmentTransaction_get_htlc_sigs(&this_arg_conv, htlc_base_key_ref, &channel_parameters_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int64_t  __attribute__((export_name("TS_get_commitment_transaction_number_obscure_factor"))) TS_get_commitment_transaction_number_obscure_factor(int8_tArray broadcaster_payment_basepoint, int8_tArray countersignatory_payment_basepoint, jboolean outbound_from_broadcaster) {
        LDKPublicKey broadcaster_payment_basepoint_ref;
        CHECK(broadcaster_payment_basepoint->arr_len == 33);
-       memcpy(broadcaster_payment_basepoint_ref.compressed_form, broadcaster_payment_basepoint->elems, 33);
+       memcpy(broadcaster_payment_basepoint_ref.compressed_form, broadcaster_payment_basepoint->elems, 33); FREE(broadcaster_payment_basepoint);
        LDKPublicKey countersignatory_payment_basepoint_ref;
        CHECK(countersignatory_payment_basepoint->arr_len == 33);
-       memcpy(countersignatory_payment_basepoint_ref.compressed_form, countersignatory_payment_basepoint->elems, 33);
+       memcpy(countersignatory_payment_basepoint_ref.compressed_form, countersignatory_payment_basepoint->elems, 33); FREE(countersignatory_payment_basepoint);
        int64_t ret_val = get_commitment_transaction_number_obscure_factor(broadcaster_payment_basepoint_ref, countersignatory_payment_basepoint_ref, outbound_from_broadcaster);
        return ret_val;
 }
@@ -30897,22 +30910,22 @@ jboolean  __attribute__((export_name("TS_ChannelTypeFeatures_eq"))) TS_ChannelTy
 
 static inline uintptr_t InitFeatures_clone_ptr(LDKInitFeatures *NONNULL_PTR arg) {
        LDKInitFeatures ret_var = InitFeatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_InitFeatures_clone_ptr"))) TS_InitFeatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_InitFeatures_clone_ptr"))) TS_InitFeatures_clone_ptr(uint32_t arg) {
        LDKInitFeatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = InitFeatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = InitFeatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30922,11 +30935,11 @@ uint32_t  __attribute__((export_name("TS_InitFeatures_clone"))) TS_InitFeatures_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKInitFeatures ret_var = InitFeatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30935,22 +30948,22 @@ uint32_t  __attribute__((export_name("TS_InitFeatures_clone"))) TS_InitFeatures_
 
 static inline uintptr_t NodeFeatures_clone_ptr(LDKNodeFeatures *NONNULL_PTR arg) {
        LDKNodeFeatures ret_var = NodeFeatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NodeFeatures_clone_ptr"))) TS_NodeFeatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NodeFeatures_clone_ptr"))) TS_NodeFeatures_clone_ptr(uint32_t arg) {
        LDKNodeFeatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NodeFeatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = NodeFeatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30960,11 +30973,11 @@ uint32_t  __attribute__((export_name("TS_NodeFeatures_clone"))) TS_NodeFeatures_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNodeFeatures ret_var = NodeFeatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -30973,22 +30986,22 @@ uint32_t  __attribute__((export_name("TS_NodeFeatures_clone"))) TS_NodeFeatures_
 
 static inline uintptr_t ChannelFeatures_clone_ptr(LDKChannelFeatures *NONNULL_PTR arg) {
        LDKChannelFeatures ret_var = ChannelFeatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelFeatures_clone_ptr"))) TS_ChannelFeatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelFeatures_clone_ptr"))) TS_ChannelFeatures_clone_ptr(uint32_t arg) {
        LDKChannelFeatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelFeatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelFeatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -30998,11 +31011,11 @@ uint32_t  __attribute__((export_name("TS_ChannelFeatures_clone"))) TS_ChannelFea
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelFeatures ret_var = ChannelFeatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31011,22 +31024,22 @@ uint32_t  __attribute__((export_name("TS_ChannelFeatures_clone"))) TS_ChannelFea
 
 static inline uintptr_t InvoiceFeatures_clone_ptr(LDKInvoiceFeatures *NONNULL_PTR arg) {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_InvoiceFeatures_clone_ptr"))) TS_InvoiceFeatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_InvoiceFeatures_clone_ptr"))) TS_InvoiceFeatures_clone_ptr(uint32_t arg) {
        LDKInvoiceFeatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = InvoiceFeatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = InvoiceFeatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31036,11 +31049,11 @@ uint32_t  __attribute__((export_name("TS_InvoiceFeatures_clone"))) TS_InvoiceFea
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKInvoiceFeatures ret_var = InvoiceFeatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31049,22 +31062,22 @@ uint32_t  __attribute__((export_name("TS_InvoiceFeatures_clone"))) TS_InvoiceFea
 
 static inline uintptr_t ChannelTypeFeatures_clone_ptr(LDKChannelTypeFeatures *NONNULL_PTR arg) {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelTypeFeatures_clone_ptr"))) TS_ChannelTypeFeatures_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelTypeFeatures_clone_ptr"))) TS_ChannelTypeFeatures_clone_ptr(uint32_t arg) {
        LDKChannelTypeFeatures arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelTypeFeatures_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelTypeFeatures_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31074,11 +31087,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTypeFeatures_clone"))) TS_Channe
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31127,11 +31140,11 @@ void  __attribute__((export_name("TS_ChannelTypeFeatures_free"))) TS_ChannelType
 
 uint32_t  __attribute__((export_name("TS_InitFeatures_empty"))) TS_InitFeatures_empty() {
        LDKInitFeatures ret_var = InitFeatures_empty();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31140,11 +31153,11 @@ uint32_t  __attribute__((export_name("TS_InitFeatures_empty"))) TS_InitFeatures_
 
 uint32_t  __attribute__((export_name("TS_InitFeatures_known"))) TS_InitFeatures_known() {
        LDKInitFeatures ret_var = InitFeatures_known();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31162,11 +31175,11 @@ jboolean  __attribute__((export_name("TS_InitFeatures_requires_unknown_bits")))
 
 uint32_t  __attribute__((export_name("TS_NodeFeatures_empty"))) TS_NodeFeatures_empty() {
        LDKNodeFeatures ret_var = NodeFeatures_empty();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31175,11 +31188,11 @@ uint32_t  __attribute__((export_name("TS_NodeFeatures_empty"))) TS_NodeFeatures_
 
 uint32_t  __attribute__((export_name("TS_NodeFeatures_known"))) TS_NodeFeatures_known() {
        LDKNodeFeatures ret_var = NodeFeatures_known();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31197,11 +31210,11 @@ jboolean  __attribute__((export_name("TS_NodeFeatures_requires_unknown_bits")))
 
 uint32_t  __attribute__((export_name("TS_ChannelFeatures_empty"))) TS_ChannelFeatures_empty() {
        LDKChannelFeatures ret_var = ChannelFeatures_empty();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31210,11 +31223,11 @@ uint32_t  __attribute__((export_name("TS_ChannelFeatures_empty"))) TS_ChannelFea
 
 uint32_t  __attribute__((export_name("TS_ChannelFeatures_known"))) TS_ChannelFeatures_known() {
        LDKChannelFeatures ret_var = ChannelFeatures_known();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31232,11 +31245,11 @@ jboolean  __attribute__((export_name("TS_ChannelFeatures_requires_unknown_bits")
 
 uint32_t  __attribute__((export_name("TS_InvoiceFeatures_empty"))) TS_InvoiceFeatures_empty() {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_empty();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31245,11 +31258,11 @@ uint32_t  __attribute__((export_name("TS_InvoiceFeatures_empty"))) TS_InvoiceFea
 
 uint32_t  __attribute__((export_name("TS_InvoiceFeatures_known"))) TS_InvoiceFeatures_known() {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_known();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31267,11 +31280,11 @@ jboolean  __attribute__((export_name("TS_InvoiceFeatures_requires_unknown_bits")
 
 uint32_t  __attribute__((export_name("TS_ChannelTypeFeatures_empty"))) TS_ChannelTypeFeatures_empty() {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_empty();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31280,11 +31293,11 @@ uint32_t  __attribute__((export_name("TS_ChannelTypeFeatures_empty"))) TS_Channe
 
 uint32_t  __attribute__((export_name("TS_ChannelTypeFeatures_known"))) TS_ChannelTypeFeatures_known() {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_known();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31306,7 +31319,7 @@ int8_tArray  __attribute__((export_name("TS_InitFeatures_write"))) TS_InitFeatur
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = InitFeatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31315,10 +31328,10 @@ int8_tArray  __attribute__((export_name("TS_InitFeatures_write"))) TS_InitFeatur
 uint32_t  __attribute__((export_name("TS_InitFeatures_read"))) TS_InitFeatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = InitFeatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelFeatures_write"))) TS_ChannelFeatures_write(uint32_t obj) {
@@ -31327,7 +31340,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelFeatures_write"))) TS_Channel
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelFeatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31336,10 +31349,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelFeatures_write"))) TS_Channel
 uint32_t  __attribute__((export_name("TS_ChannelFeatures_read"))) TS_ChannelFeatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = ChannelFeatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_NodeFeatures_write"))) TS_NodeFeatures_write(uint32_t obj) {
@@ -31348,7 +31361,7 @@ int8_tArray  __attribute__((export_name("TS_NodeFeatures_write"))) TS_NodeFeatur
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NodeFeatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31357,10 +31370,10 @@ int8_tArray  __attribute__((export_name("TS_NodeFeatures_write"))) TS_NodeFeatur
 uint32_t  __attribute__((export_name("TS_NodeFeatures_read"))) TS_NodeFeatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = NodeFeatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_InvoiceFeatures_write"))) TS_InvoiceFeatures_write(uint32_t obj) {
@@ -31369,7 +31382,7 @@ int8_tArray  __attribute__((export_name("TS_InvoiceFeatures_write"))) TS_Invoice
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = InvoiceFeatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31378,10 +31391,10 @@ int8_tArray  __attribute__((export_name("TS_InvoiceFeatures_write"))) TS_Invoice
 uint32_t  __attribute__((export_name("TS_InvoiceFeatures_read"))) TS_InvoiceFeatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = InvoiceFeatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ChannelTypeFeatures_write"))) TS_ChannelTypeFeatures_write(uint32_t obj) {
@@ -31390,7 +31403,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelTypeFeatures_write"))) TS_Cha
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelTypeFeatures_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31399,10 +31412,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelTypeFeatures_write"))) TS_Cha
 uint32_t  __attribute__((export_name("TS_ChannelTypeFeatures_read"))) TS_ChannelTypeFeatures_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = ChannelTypeFeatures_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ShutdownScript_free"))) TS_ShutdownScript_free(uint32_t this_obj) {
@@ -31415,22 +31428,22 @@ void  __attribute__((export_name("TS_ShutdownScript_free"))) TS_ShutdownScript_f
 
 static inline uintptr_t ShutdownScript_clone_ptr(LDKShutdownScript *NONNULL_PTR arg) {
        LDKShutdownScript ret_var = ShutdownScript_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ShutdownScript_clone_ptr"))) TS_ShutdownScript_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ShutdownScript_clone_ptr"))) TS_ShutdownScript_clone_ptr(uint32_t arg) {
        LDKShutdownScript arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ShutdownScript_clone_ptr(&arg_conv);
+       intptr_t ret_val = ShutdownScript_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31440,11 +31453,11 @@ uint32_t  __attribute__((export_name("TS_ShutdownScript_clone"))) TS_ShutdownScr
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKShutdownScript ret_var = ShutdownScript_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31465,7 +31478,7 @@ int8_tArray  __attribute__((export_name("TS_InvalidShutdownScript_get_script")))
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKu8slice ret_var = InvalidShutdownScript_get_script(&this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -31478,7 +31491,7 @@ void  __attribute__((export_name("TS_InvalidShutdownScript_set_script"))) TS_Inv
        LDKCVec_u8Z val_ref;
        val_ref.datalen = val->arr_len;
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(val_ref.data, val->elems, val_ref.datalen);
+       memcpy(val_ref.data, val->elems, val_ref.datalen); FREE(val);
        InvalidShutdownScript_set_script(&this_ptr_conv, val_ref);
 }
 
@@ -31486,13 +31499,13 @@ uint32_t  __attribute__((export_name("TS_InvalidShutdownScript_new"))) TS_Invali
        LDKCVec_u8Z script_arg_ref;
        script_arg_ref.datalen = script_arg->arr_len;
        script_arg_ref.data = MALLOC(script_arg_ref.datalen, "LDKCVec_u8Z Bytes");
-       memcpy(script_arg_ref.data, script_arg->elems, script_arg_ref.datalen);
+       memcpy(script_arg_ref.data, script_arg->elems, script_arg_ref.datalen); FREE(script_arg);
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_new(script_arg_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31501,22 +31514,22 @@ uint32_t  __attribute__((export_name("TS_InvalidShutdownScript_new"))) TS_Invali
 
 static inline uintptr_t InvalidShutdownScript_clone_ptr(LDKInvalidShutdownScript *NONNULL_PTR arg) {
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_InvalidShutdownScript_clone_ptr"))) TS_InvalidShutdownScript_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_InvalidShutdownScript_clone_ptr"))) TS_InvalidShutdownScript_clone_ptr(uint32_t arg) {
        LDKInvalidShutdownScript arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = InvalidShutdownScript_clone_ptr(&arg_conv);
+       intptr_t ret_val = InvalidShutdownScript_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31526,11 +31539,11 @@ uint32_t  __attribute__((export_name("TS_InvalidShutdownScript_clone"))) TS_Inva
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31543,7 +31556,7 @@ int8_tArray  __attribute__((export_name("TS_ShutdownScript_write"))) TS_Shutdown
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ShutdownScript_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31552,23 +31565,23 @@ int8_tArray  __attribute__((export_name("TS_ShutdownScript_write"))) TS_Shutdown
 uint32_t  __attribute__((export_name("TS_ShutdownScript_read"))) TS_ShutdownScript_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = ShutdownScript_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ShutdownScript_new_p2wpkh"))) TS_ShutdownScript_new_p2wpkh(int8_tArray pubkey_hash) {
        unsigned char pubkey_hash_arr[20];
        CHECK(pubkey_hash->arr_len == 20);
-       memcpy(pubkey_hash_arr, pubkey_hash->elems, 20);
+       memcpy(pubkey_hash_arr, pubkey_hash->elems, 20); FREE(pubkey_hash);
        unsigned char (*pubkey_hash_ref)[20] = &pubkey_hash_arr;
        LDKShutdownScript ret_var = ShutdownScript_new_p2wpkh(pubkey_hash_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31578,14 +31591,14 @@ uint32_t  __attribute__((export_name("TS_ShutdownScript_new_p2wpkh"))) TS_Shutdo
 uint32_t  __attribute__((export_name("TS_ShutdownScript_new_p2wsh"))) TS_ShutdownScript_new_p2wsh(int8_tArray script_hash) {
        unsigned char script_hash_arr[32];
        CHECK(script_hash->arr_len == 32);
-       memcpy(script_hash_arr, script_hash->elems, 32);
+       memcpy(script_hash_arr, script_hash->elems, 32); FREE(script_hash);
        unsigned char (*script_hash_ref)[32] = &script_hash_arr;
        LDKShutdownScript ret_var = ShutdownScript_new_p2wsh(script_hash_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31595,10 +31608,10 @@ uint32_t  __attribute__((export_name("TS_ShutdownScript_new_p2wsh"))) TS_Shutdow
 uint32_t  __attribute__((export_name("TS_ShutdownScript_new_witness_program"))) TS_ShutdownScript_new_witness_program(int8_t version, int8_tArray program) {
        LDKu8slice program_ref;
        program_ref.datalen = program->arr_len;
-       program_ref.data = program->elems;
+       program_ref.data = program->elems /* XXX program leaks */;
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = ShutdownScript_new_witness_program(version, program_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_ShutdownScript_into_inner"))) TS_ShutdownScript_into_inner(uint32_t this_arg) {
@@ -31608,7 +31621,7 @@ int8_tArray  __attribute__((export_name("TS_ShutdownScript_into_inner"))) TS_Shu
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = ShutdownScript_clone(&this_arg_conv);
        LDKCVec_u8Z ret_var = ShutdownScript_into_inner(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31619,7 +31632,7 @@ int8_tArray  __attribute__((export_name("TS_ShutdownScript_as_legacy_pubkey")))
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, ShutdownScript_as_legacy_pubkey(&this_arg_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -31639,7 +31652,7 @@ jboolean  __attribute__((export_name("TS_ShutdownScript_is_compatible"))) TS_Shu
 
 void  __attribute__((export_name("TS_CustomMessageReader_free"))) TS_CustomMessageReader_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKCustomMessageReader this_ptr_conv = *(LDKCustomMessageReader*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -31649,28 +31662,28 @@ void  __attribute__((export_name("TS_CustomMessageReader_free"))) TS_CustomMessa
 static inline uintptr_t Type_clone_ptr(LDKType *NONNULL_PTR arg) {
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = Type_clone(arg);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
-int64_t  __attribute__((export_name("TS_Type_clone_ptr"))) TS_Type_clone_ptr(uint32_t arg) {
-       void* arg_ptr = (void*)(((uint64_t)arg) & ~1);
+intptr_t  __attribute__((export_name("TS_Type_clone_ptr"))) TS_Type_clone_ptr(uint32_t arg) {
+       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
        if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
        LDKType* arg_conv = (LDKType*)arg_ptr;
-       int64_t ret_val = Type_clone_ptr(arg_conv);
+       intptr_t ret_val = Type_clone_ptr(arg_conv);
        return ret_val;
 }
 
 uint32_t  __attribute__((export_name("TS_Type_clone"))) TS_Type_clone(uint32_t orig) {
-       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
        if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
        LDKType* orig_conv = (LDKType*)orig_ptr;
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = Type_clone(orig_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_Type_free"))) TS_Type_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKType this_ptr_conv = *(LDKType*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -31687,22 +31700,22 @@ void  __attribute__((export_name("TS_NodeId_free"))) TS_NodeId_free(uint32_t thi
 
 static inline uintptr_t NodeId_clone_ptr(LDKNodeId *NONNULL_PTR arg) {
        LDKNodeId ret_var = NodeId_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NodeId_clone_ptr"))) TS_NodeId_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NodeId_clone_ptr"))) TS_NodeId_clone_ptr(uint32_t arg) {
        LDKNodeId arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NodeId_clone_ptr(&arg_conv);
+       intptr_t ret_val = NodeId_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31712,11 +31725,11 @@ uint32_t  __attribute__((export_name("TS_NodeId_clone"))) TS_NodeId_clone(uint32
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNodeId ret_var = NodeId_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31726,13 +31739,13 @@ uint32_t  __attribute__((export_name("TS_NodeId_clone"))) TS_NodeId_clone(uint32
 uint32_t  __attribute__((export_name("TS_NodeId_from_pubkey"))) TS_NodeId_from_pubkey(int8_tArray pubkey) {
        LDKPublicKey pubkey_ref;
        CHECK(pubkey->arr_len == 33);
-       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33);
+       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33); FREE(pubkey);
        LDKNodeId ret_var = NodeId_from_pubkey(pubkey_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31745,7 +31758,7 @@ int8_tArray  __attribute__((export_name("TS_NodeId_as_slice"))) TS_NodeId_as_sli
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKu8slice ret_var = NodeId_as_slice(&this_arg_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        return ret_arr;
 }
@@ -31765,7 +31778,7 @@ int8_tArray  __attribute__((export_name("TS_NodeId_write"))) TS_NodeId_write(uin
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NodeId_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31774,10 +31787,10 @@ int8_tArray  __attribute__((export_name("TS_NodeId_write"))) TS_NodeId_write(uin
 uint32_t  __attribute__((export_name("TS_NodeId_read"))) TS_NodeId_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = NodeId_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_NetworkGraph_free"))) TS_NetworkGraph_free(uint32_t this_obj) {
@@ -31790,22 +31803,22 @@ void  __attribute__((export_name("TS_NetworkGraph_free"))) TS_NetworkGraph_free(
 
 static inline uintptr_t NetworkGraph_clone_ptr(LDKNetworkGraph *NONNULL_PTR arg) {
        LDKNetworkGraph ret_var = NetworkGraph_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NetworkGraph_clone_ptr"))) TS_NetworkGraph_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NetworkGraph_clone_ptr"))) TS_NetworkGraph_clone_ptr(uint32_t arg) {
        LDKNetworkGraph arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NetworkGraph_clone_ptr(&arg_conv);
+       intptr_t ret_val = NetworkGraph_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -31815,11 +31828,11 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_clone"))) TS_NetworkGraph_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNetworkGraph ret_var = NetworkGraph_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31836,7 +31849,7 @@ void  __attribute__((export_name("TS_ReadOnlyNetworkGraph_free"))) TS_ReadOnlyNe
 
 void  __attribute__((export_name("TS_NetworkUpdate_free"))) TS_NetworkUpdate_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKNetworkUpdate this_ptr_conv = *(LDKNetworkUpdate*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -31846,12 +31859,12 @@ void  __attribute__((export_name("TS_NetworkUpdate_free"))) TS_NetworkUpdate_fre
 static inline uintptr_t NetworkUpdate_clone_ptr(LDKNetworkUpdate *NONNULL_PTR arg) {
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_clone(arg);
-uint64_t ret_ref = (uint64_t)ret_copy;
+uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NetworkUpdate_clone_ptr"))) TS_NetworkUpdate_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NetworkUpdate_clone_ptr"))) TS_NetworkUpdate_clone_ptr(uint32_t arg) {
        LDKNetworkUpdate* arg_conv = (LDKNetworkUpdate*)arg;
-       int64_t ret_val = NetworkUpdate_clone_ptr(arg_conv);
+       intptr_t ret_val = NetworkUpdate_clone_ptr(arg_conv);
        return ret_val;
 }
 
@@ -31859,7 +31872,7 @@ uint32_t  __attribute__((export_name("TS_NetworkUpdate_clone"))) TS_NetworkUpdat
        LDKNetworkUpdate* orig_conv = (LDKNetworkUpdate*)orig;
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_clone(orig_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -31871,31 +31884,31 @@ uint32_t  __attribute__((export_name("TS_NetworkUpdate_channel_update_message"))
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_channel_update_message(msg_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkUpdate_channel_closed"))) TS_NetworkUpdate_channel_closed(int64_t short_channel_id, jboolean is_permanent) {
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_channel_closed(short_channel_id, is_permanent);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkUpdate_node_failure"))) TS_NetworkUpdate_node_failure(int8_tArray node_id, jboolean is_permanent) {
        LDKPublicKey node_id_ref;
        CHECK(node_id->arr_len == 33);
-       memcpy(node_id_ref.compressed_form, node_id->elems, 33);
+       memcpy(node_id_ref.compressed_form, node_id->elems, 33); FREE(node_id);
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_node_failure(node_id_ref, is_permanent);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
 int8_tArray  __attribute__((export_name("TS_NetworkUpdate_write"))) TS_NetworkUpdate_write(uint32_t obj) {
        LDKNetworkUpdate* obj_conv = (LDKNetworkUpdate*)obj;
        LDKCVec_u8Z ret_var = NetworkUpdate_write(obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -31904,10 +31917,10 @@ int8_tArray  __attribute__((export_name("TS_NetworkUpdate_write"))) TS_NetworkUp
 uint32_t  __attribute__((export_name("TS_NetworkUpdate_read"))) TS_NetworkUpdate_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = NetworkUpdate_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_as_EventHandler"))) TS_NetGraphMsgHandler_as_EventHandler(uint32_t this_arg) {
@@ -31917,7 +31930,7 @@ uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_as_EventHandler")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKEventHandler* ret_ret = MALLOC(sizeof(LDKEventHandler), "LDKEventHandler");
        *ret_ret = NetGraphMsgHandler_as_EventHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_NetGraphMsgHandler_free"))) TS_NetGraphMsgHandler_free(uint32_t this_obj) {
@@ -31933,22 +31946,22 @@ uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_new"))) TS_NetGraphM
        network_graph_conv.inner = (void*)(network_graph & (~1));
        network_graph_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
-       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // Warning: we may need a move here but no clone is available for LDKCOption_AccessZ
        if (chain_access_conv.tag == LDKCOption_AccessZ_Some) {
                // Manually implement clone for Java trait instances
        }
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        LDKNetGraphMsgHandler ret_var = NetGraphMsgHandler_new(&network_graph_conv, chain_access_conv, logger_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -31960,7 +31973,7 @@ void  __attribute__((export_name("TS_NetGraphMsgHandler_add_chain_access"))) TS_
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // Warning: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -31977,7 +31990,7 @@ uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_as_RoutingMessageHan
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKRoutingMessageHandler* ret_ret = MALLOC(sizeof(LDKRoutingMessageHandler), "LDKRoutingMessageHandler");
        *ret_ret = NetGraphMsgHandler_as_RoutingMessageHandler(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_as_MessageSendEventsProvider"))) TS_NetGraphMsgHandler_as_MessageSendEventsProvider(uint32_t this_arg) {
@@ -31987,7 +32000,7 @@ uint32_t  __attribute__((export_name("TS_NetGraphMsgHandler_as_MessageSendEvents
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = NetGraphMsgHandler_as_MessageSendEventsProvider(&this_arg_conv);
-       return (uint64_t)ret_ret;
+       return (uintptr_t)ret_ret;
 }
 
 void  __attribute__((export_name("TS_DirectionalChannelInfo_free"))) TS_DirectionalChannelInfo_free(uint32_t this_obj) {
@@ -32073,7 +32086,7 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_get_htlc_maximum
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = DirectionalChannelInfo_get_htlc_maximum_msat(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -32082,10 +32095,10 @@ void  __attribute__((export_name("TS_DirectionalChannelInfo_set_htlc_maximum_msa
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        DirectionalChannelInfo_set_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
 
@@ -32095,11 +32108,11 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_get_fees"))) TS_
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKRoutingFees ret_var = DirectionalChannelInfo_get_fees(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32125,12 +32138,12 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_get_last_update_
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelUpdate ret_var = DirectionalChannelInfo_get_last_update_message(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32152,10 +32165,10 @@ void  __attribute__((export_name("TS_DirectionalChannelInfo_set_last_update_mess
 }
 
 uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_new"))) TS_DirectionalChannelInfo_new(int32_t last_update_arg, jboolean enabled_arg, int16_t cltv_expiry_delta_arg, int64_t htlc_minimum_msat_arg, uint32_t htlc_maximum_msat_arg, uint32_t fees_arg, uint32_t last_update_message_arg) {
-       void* htlc_maximum_msat_arg_ptr = (void*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       void* htlc_maximum_msat_arg_ptr = (void*)(((uintptr_t)htlc_maximum_msat_arg) & ~1);
        CHECK_ACCESS(htlc_maximum_msat_arg_ptr);
        LDKCOption_u64Z htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(htlc_maximum_msat_arg_ptr);
-       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)htlc_maximum_msat_arg) & ~1));
+       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_maximum_msat_arg) & ~1));
        LDKRoutingFees fees_arg_conv;
        fees_arg_conv.inner = (void*)(fees_arg & (~1));
        fees_arg_conv.is_owned = (fees_arg & 1) || (fees_arg == 0);
@@ -32167,11 +32180,11 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_new"))) TS_Direc
        CHECK_INNER_FIELD_ACCESS_OR_NULL(last_update_message_arg_conv);
        last_update_message_arg_conv = ChannelUpdate_clone(&last_update_message_arg_conv);
        LDKDirectionalChannelInfo ret_var = DirectionalChannelInfo_new(last_update_arg, enabled_arg, cltv_expiry_delta_arg, htlc_minimum_msat_arg, htlc_maximum_msat_arg_conv, fees_arg_conv, last_update_message_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32180,22 +32193,22 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_new"))) TS_Direc
 
 static inline uintptr_t DirectionalChannelInfo_clone_ptr(LDKDirectionalChannelInfo *NONNULL_PTR arg) {
        LDKDirectionalChannelInfo ret_var = DirectionalChannelInfo_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_DirectionalChannelInfo_clone_ptr"))) TS_DirectionalChannelInfo_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_DirectionalChannelInfo_clone_ptr"))) TS_DirectionalChannelInfo_clone_ptr(uint32_t arg) {
        LDKDirectionalChannelInfo arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = DirectionalChannelInfo_clone_ptr(&arg_conv);
+       intptr_t ret_val = DirectionalChannelInfo_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -32205,11 +32218,11 @@ uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_clone"))) TS_Dir
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKDirectionalChannelInfo ret_var = DirectionalChannelInfo_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32222,7 +32235,7 @@ int8_tArray  __attribute__((export_name("TS_DirectionalChannelInfo_write"))) TS_
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = DirectionalChannelInfo_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -32231,10 +32244,10 @@ int8_tArray  __attribute__((export_name("TS_DirectionalChannelInfo_write"))) TS_
 uint32_t  __attribute__((export_name("TS_DirectionalChannelInfo_read"))) TS_DirectionalChannelInfo_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_DirectionalChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DirectionalChannelInfoDecodeErrorZ), "LDKCResult_DirectionalChannelInfoDecodeErrorZ");
        *ret_conv = DirectionalChannelInfo_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_ChannelInfo_free"))) TS_ChannelInfo_free(uint32_t this_obj) {
@@ -32251,11 +32264,11 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_features"))) TS_Channel
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelFeatures ret_var = ChannelInfo_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32281,11 +32294,11 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_node_one"))) TS_Channel
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeId ret_var = ChannelInfo_get_node_one(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32311,12 +32324,12 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_one_to_two"))) TS_Chann
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKDirectionalChannelInfo ret_var = ChannelInfo_get_one_to_two(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32343,11 +32356,11 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_node_two"))) TS_Channel
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeId ret_var = ChannelInfo_get_node_two(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32373,12 +32386,12 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_two_to_one"))) TS_Chann
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKDirectionalChannelInfo ret_var = ChannelInfo_get_two_to_one(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32406,7 +32419,7 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_capacity_sats"))) TS_Ch
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelInfo_get_capacity_sats(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -32415,10 +32428,10 @@ void  __attribute__((export_name("TS_ChannelInfo_set_capacity_sats"))) TS_Channe
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        ChannelInfo_set_capacity_sats(&this_ptr_conv, val_conv);
 }
 
@@ -32428,12 +32441,12 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_get_announcement_message"))
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelAnnouncement ret_var = ChannelInfo_get_announcement_message(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32456,22 +32469,22 @@ void  __attribute__((export_name("TS_ChannelInfo_set_announcement_message"))) TS
 
 static inline uintptr_t ChannelInfo_clone_ptr(LDKChannelInfo *NONNULL_PTR arg) {
        LDKChannelInfo ret_var = ChannelInfo_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_ChannelInfo_clone_ptr"))) TS_ChannelInfo_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_ChannelInfo_clone_ptr"))) TS_ChannelInfo_clone_ptr(uint32_t arg) {
        LDKChannelInfo arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = ChannelInfo_clone_ptr(&arg_conv);
+       intptr_t ret_val = ChannelInfo_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -32481,11 +32494,11 @@ uint32_t  __attribute__((export_name("TS_ChannelInfo_clone"))) TS_ChannelInfo_cl
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKChannelInfo ret_var = ChannelInfo_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32498,7 +32511,7 @@ int8_tArray  __attribute__((export_name("TS_ChannelInfo_write"))) TS_ChannelInfo
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ChannelInfo_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -32507,10 +32520,10 @@ int8_tArray  __attribute__((export_name("TS_ChannelInfo_write"))) TS_ChannelInfo
 uint32_t  __attribute__((export_name("TS_ChannelInfo_read"))) TS_ChannelInfo_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = ChannelInfo_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_RoutingFees_free"))) TS_RoutingFees_free(uint32_t this_obj) {
@@ -32557,11 +32570,11 @@ void  __attribute__((export_name("TS_RoutingFees_set_proportional_millionths")))
 
 uint32_t  __attribute__((export_name("TS_RoutingFees_new"))) TS_RoutingFees_new(int32_t base_msat_arg, int32_t proportional_millionths_arg) {
        LDKRoutingFees ret_var = RoutingFees_new(base_msat_arg, proportional_millionths_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32583,22 +32596,22 @@ jboolean  __attribute__((export_name("TS_RoutingFees_eq"))) TS_RoutingFees_eq(ui
 
 static inline uintptr_t RoutingFees_clone_ptr(LDKRoutingFees *NONNULL_PTR arg) {
        LDKRoutingFees ret_var = RoutingFees_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RoutingFees_clone_ptr"))) TS_RoutingFees_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RoutingFees_clone_ptr"))) TS_RoutingFees_clone_ptr(uint32_t arg) {
        LDKRoutingFees arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RoutingFees_clone_ptr(&arg_conv);
+       intptr_t ret_val = RoutingFees_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -32608,11 +32621,11 @@ uint32_t  __attribute__((export_name("TS_RoutingFees_clone"))) TS_RoutingFees_cl
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRoutingFees ret_var = RoutingFees_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32634,7 +32647,7 @@ int8_tArray  __attribute__((export_name("TS_RoutingFees_write"))) TS_RoutingFees
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RoutingFees_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -32643,10 +32656,10 @@ int8_tArray  __attribute__((export_name("TS_RoutingFees_write"))) TS_RoutingFees
 uint32_t  __attribute__((export_name("TS_RoutingFees_read"))) TS_RoutingFees_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = RoutingFees_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_NodeAnnouncementInfo_free"))) TS_NodeAnnouncementInfo_free(uint32_t this_obj) {
@@ -32663,11 +32676,11 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_get_features"))) T
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeFeatures ret_var = NodeAnnouncementInfo_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32709,7 +32722,7 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncementInfo_get_rgb"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(3);
+       int8_tArray ret_arr = init_int8_tArray(3, __LINE__);
        memcpy(ret_arr->elems, *NodeAnnouncementInfo_get_rgb(&this_ptr_conv), 3);
        return ret_arr;
 }
@@ -32721,7 +32734,7 @@ void  __attribute__((export_name("TS_NodeAnnouncementInfo_set_rgb"))) TS_NodeAnn
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThreeBytes val_ref;
        CHECK(val->arr_len == 3);
-       memcpy(val_ref.data, val->elems, 3);
+       memcpy(val_ref.data, val->elems, 3); FREE(val);
        NodeAnnouncementInfo_set_rgb(&this_ptr_conv, val_ref);
 }
 
@@ -32730,7 +32743,7 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncementInfo_get_alias"))) T
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(32);
+       int8_tArray ret_arr = init_int8_tArray(32, __LINE__);
        memcpy(ret_arr->elems, *NodeAnnouncementInfo_get_alias(&this_ptr_conv), 32);
        return ret_arr;
 }
@@ -32742,7 +32755,7 @@ void  __attribute__((export_name("TS_NodeAnnouncementInfo_set_alias"))) TS_NodeA
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKThirtyTwoBytes val_ref;
        CHECK(val->arr_len == 32);
-       memcpy(val_ref.data, val->elems, 32);
+       memcpy(val_ref.data, val->elems, 32); FREE(val);
        NodeAnnouncementInfo_set_alias(&this_ptr_conv, val_ref);
 }
 
@@ -32757,13 +32770,13 @@ void  __attribute__((export_name("TS_NodeAnnouncementInfo_set_addresses"))) TS_N
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t m = 0; m < val_constr.datalen; m++) {
                uint32_t val_conv_12 = val_vals[m];
-               void* val_conv_12_ptr = (void*)(((uint64_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = (void*)(((uintptr_t)val_conv_12) & ~1);
                CHECK_ACCESS(val_conv_12_ptr);
                LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
-               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)val_conv_12) & ~1));
+               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)val_conv_12) & ~1));
                val_constr.data[m] = val_conv_12_conv;
        }
        NodeAnnouncementInfo_set_addresses(&this_ptr_conv, val_constr);
@@ -32775,12 +32788,12 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_get_announcement_m
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeAnnouncement ret_var = NodeAnnouncementInfo_get_announcement_message(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32809,20 +32822,20 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_new"))) TS_NodeAnn
        features_arg_conv = NodeFeatures_clone(&features_arg_conv);
        LDKThreeBytes rgb_arg_ref;
        CHECK(rgb_arg->arr_len == 3);
-       memcpy(rgb_arg_ref.data, rgb_arg->elems, 3);
+       memcpy(rgb_arg_ref.data, rgb_arg->elems, 3); FREE(rgb_arg);
        LDKThirtyTwoBytes alias_arg_ref;
        CHECK(alias_arg->arr_len == 32);
-       memcpy(alias_arg_ref.data, alias_arg->elems, 32);
+       memcpy(alias_arg_ref.data, alias_arg->elems, 32); FREE(alias_arg);
        LDKCVec_NetAddressZ addresses_arg_constr;
        addresses_arg_constr.datalen = addresses_arg->arr_len;
        if (addresses_arg_constr.datalen > 0)
                addresses_arg_constr.data = MALLOC(addresses_arg_constr.datalen * sizeof(LDKNetAddress), "LDKCVec_NetAddressZ Elements");
        else
                addresses_arg_constr.data = NULL;
-       uint32_t* addresses_arg_vals = addresses_arg->elems;
+       uint32_t* addresses_arg_vals = addresses_arg->elems /* XXX addresses_arg leaks */;
        for (size_t m = 0; m < addresses_arg_constr.datalen; m++) {
                uint32_t addresses_arg_conv_12 = addresses_arg_vals[m];
-               void* addresses_arg_conv_12_ptr = (void*)(((uint64_t)addresses_arg_conv_12) & ~1);
+               void* addresses_arg_conv_12_ptr = (void*)(((uintptr_t)addresses_arg_conv_12) & ~1);
                CHECK_ACCESS(addresses_arg_conv_12_ptr);
                LDKNetAddress addresses_arg_conv_12_conv = *(LDKNetAddress*)(addresses_arg_conv_12_ptr);
                addresses_arg_constr.data[m] = addresses_arg_conv_12_conv;
@@ -32833,11 +32846,11 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_new"))) TS_NodeAnn
        CHECK_INNER_FIELD_ACCESS_OR_NULL(announcement_message_arg_conv);
        announcement_message_arg_conv = NodeAnnouncement_clone(&announcement_message_arg_conv);
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_new(features_arg_conv, last_update_arg, rgb_arg_ref, alias_arg_ref, addresses_arg_constr, announcement_message_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32846,22 +32859,22 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_new"))) TS_NodeAnn
 
 static inline uintptr_t NodeAnnouncementInfo_clone_ptr(LDKNodeAnnouncementInfo *NONNULL_PTR arg) {
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NodeAnnouncementInfo_clone_ptr"))) TS_NodeAnnouncementInfo_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NodeAnnouncementInfo_clone_ptr"))) TS_NodeAnnouncementInfo_clone_ptr(uint32_t arg) {
        LDKNodeAnnouncementInfo arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NodeAnnouncementInfo_clone_ptr(&arg_conv);
+       intptr_t ret_val = NodeAnnouncementInfo_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -32871,11 +32884,11 @@ uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_clone"))) TS_NodeA
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -32888,7 +32901,7 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncementInfo_write"))) TS_No
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NodeAnnouncementInfo_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -32897,10 +32910,10 @@ int8_tArray  __attribute__((export_name("TS_NodeAnnouncementInfo_write"))) TS_No
 uint32_t  __attribute__((export_name("TS_NodeAnnouncementInfo_read"))) TS_NodeAnnouncementInfo_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = NodeAnnouncementInfo_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_NodeInfo_free"))) TS_NodeInfo_free(uint32_t this_obj) {
@@ -32922,7 +32935,7 @@ void  __attribute__((export_name("TS_NodeInfo_set_channels"))) TS_NodeInfo_set_c
                val_constr.data = MALLOC(val_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                val_constr.data = NULL;
-       int64_t* val_vals = val->elems;
+       int64_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t i = 0; i < val_constr.datalen; i++) {
                int64_t val_conv_8 = val_vals[i];
                val_constr.data[i] = val_conv_8;
@@ -32936,12 +32949,12 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_get_lowest_inbound_channel_fee
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKRoutingFees ret_var = NodeInfo_get_lowest_inbound_channel_fees(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -32968,12 +32981,12 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_get_announcement_info"))) TS_N
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeAnnouncementInfo ret_var = NodeInfo_get_announcement_info(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -33001,7 +33014,7 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_new"))) TS_NodeInfo_new(int64_
                channels_arg_constr.data = MALLOC(channels_arg_constr.datalen * sizeof(int64_t), "LDKCVec_u64Z Elements");
        else
                channels_arg_constr.data = NULL;
-       int64_t* channels_arg_vals = channels_arg->elems;
+       int64_t* channels_arg_vals = channels_arg->elems /* XXX channels_arg leaks */;
        for (size_t i = 0; i < channels_arg_constr.datalen; i++) {
                int64_t channels_arg_conv_8 = channels_arg_vals[i];
                channels_arg_constr.data[i] = channels_arg_conv_8;
@@ -33017,11 +33030,11 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_new"))) TS_NodeInfo_new(int64_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(announcement_info_arg_conv);
        announcement_info_arg_conv = NodeAnnouncementInfo_clone(&announcement_info_arg_conv);
        LDKNodeInfo ret_var = NodeInfo_new(channels_arg_constr, lowest_inbound_channel_fees_arg_conv, announcement_info_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33030,22 +33043,22 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_new"))) TS_NodeInfo_new(int64_
 
 static inline uintptr_t NodeInfo_clone_ptr(LDKNodeInfo *NONNULL_PTR arg) {
        LDKNodeInfo ret_var = NodeInfo_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_NodeInfo_clone_ptr"))) TS_NodeInfo_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_NodeInfo_clone_ptr"))) TS_NodeInfo_clone_ptr(uint32_t arg) {
        LDKNodeInfo arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = NodeInfo_clone_ptr(&arg_conv);
+       intptr_t ret_val = NodeInfo_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -33055,11 +33068,11 @@ uint32_t  __attribute__((export_name("TS_NodeInfo_clone"))) TS_NodeInfo_clone(ui
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKNodeInfo ret_var = NodeInfo_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33072,7 +33085,7 @@ int8_tArray  __attribute__((export_name("TS_NodeInfo_write"))) TS_NodeInfo_write
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NodeInfo_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -33081,10 +33094,10 @@ int8_tArray  __attribute__((export_name("TS_NodeInfo_write"))) TS_NodeInfo_write
 uint32_t  __attribute__((export_name("TS_NodeInfo_read"))) TS_NodeInfo_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = NodeInfo_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 int8_tArray  __attribute__((export_name("TS_NetworkGraph_write"))) TS_NetworkGraph_write(uint32_t obj) {
@@ -33093,7 +33106,7 @@ int8_tArray  __attribute__((export_name("TS_NetworkGraph_write"))) TS_NetworkGra
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = NetworkGraph_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -33102,22 +33115,22 @@ int8_tArray  __attribute__((export_name("TS_NetworkGraph_write"))) TS_NetworkGra
 uint32_t  __attribute__((export_name("TS_NetworkGraph_read"))) TS_NetworkGraph_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = NetworkGraph_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkGraph_new"))) TS_NetworkGraph_new(int8_tArray genesis_hash) {
        LDKThirtyTwoBytes genesis_hash_ref;
        CHECK(genesis_hash->arr_len == 32);
-       memcpy(genesis_hash_ref.data, genesis_hash->elems, 32);
+       memcpy(genesis_hash_ref.data, genesis_hash->elems, 32); FREE(genesis_hash);
        LDKNetworkGraph ret_var = NetworkGraph_new(genesis_hash_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33130,11 +33143,11 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_read_only"))) TS_NetworkGr
        this_arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKReadOnlyNetworkGraph ret_var = NetworkGraph_read_only(&this_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33152,7 +33165,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_node_from_announcem
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_node_from_announcement(&this_arg_conv, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkGraph_update_node_from_unsigned_announcement"))) TS_NetworkGraph_update_node_from_unsigned_announcement(uint32_t this_arg, uint32_t msg) {
@@ -33166,7 +33179,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_node_from_unsigned_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_node_from_unsigned_announcement(&this_arg_conv, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_announcement"))) TS_NetworkGraph_update_channel_from_announcement(uint32_t this_arg, uint32_t msg, uint32_t chain_access) {
@@ -33178,7 +33191,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_announ
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
-       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // Warning: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -33187,7 +33200,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_announ
        }
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_from_announcement(&this_arg_conv, &msg_conv, chain_access_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_unsigned_announcement"))) TS_NetworkGraph_update_channel_from_unsigned_announcement(uint32_t this_arg, uint32_t msg, uint32_t chain_access) {
@@ -33199,7 +33212,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_unsign
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
-       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // Warning: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -33208,7 +33221,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_from_unsign
        }
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_from_unsigned_announcement(&this_arg_conv, &msg_conv, chain_access_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_NetworkGraph_close_channel_from_update"))) TS_NetworkGraph_close_channel_from_update(uint32_t this_arg, int64_t short_channel_id, jboolean is_permanent) {
@@ -33226,7 +33239,7 @@ void  __attribute__((export_name("TS_NetworkGraph_fail_node"))) TS_NetworkGraph_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKPublicKey _node_id_ref;
        CHECK(_node_id->arr_len == 33);
-       memcpy(_node_id_ref.compressed_form, _node_id->elems, 33);
+       memcpy(_node_id_ref.compressed_form, _node_id->elems, 33); FREE(_node_id);
        NetworkGraph_fail_node(&this_arg_conv, _node_id_ref, is_permanent);
 }
 
@@ -33249,7 +33262,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel"))) TS_Netw
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel(&this_arg_conv, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_unsigned"))) TS_NetworkGraph_update_channel_unsigned(uint32_t this_arg, uint32_t msg) {
@@ -33263,7 +33276,7 @@ uint32_t  __attribute__((export_name("TS_NetworkGraph_update_channel_unsigned"))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_unsigned(&this_arg_conv, &msg_conv);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ReadOnlyNetworkGraph_get_addresses"))) TS_ReadOnlyNetworkGraph_get_addresses(uint32_t this_arg, int8_tArray pubkey) {
@@ -33273,10 +33286,10 @@ uint32_t  __attribute__((export_name("TS_ReadOnlyNetworkGraph_get_addresses")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        LDKPublicKey pubkey_ref;
        CHECK(pubkey->arr_len == 33);
-       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33);
+       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33); FREE(pubkey);
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = ReadOnlyNetworkGraph_get_addresses(&this_arg_conv, pubkey_ref);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -33293,7 +33306,7 @@ int8_tArray  __attribute__((export_name("TS_RouteHop_get_pubkey"))) TS_RouteHop_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, RouteHop_get_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -33305,7 +33318,7 @@ void  __attribute__((export_name("TS_RouteHop_set_pubkey"))) TS_RouteHop_set_pub
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        RouteHop_set_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -33315,11 +33328,11 @@ uint32_t  __attribute__((export_name("TS_RouteHop_get_node_features"))) TS_Route
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKNodeFeatures ret_var = RouteHop_get_node_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33362,11 +33375,11 @@ uint32_t  __attribute__((export_name("TS_RouteHop_get_channel_features"))) TS_Ro
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKChannelFeatures ret_var = RouteHop_get_channel_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33423,7 +33436,7 @@ void  __attribute__((export_name("TS_RouteHop_set_cltv_expiry_delta"))) TS_Route
 uint32_t  __attribute__((export_name("TS_RouteHop_new"))) TS_RouteHop_new(int8_tArray pubkey_arg, uint32_t node_features_arg, int64_t short_channel_id_arg, uint32_t channel_features_arg, int64_t fee_msat_arg, int32_t cltv_expiry_delta_arg) {
        LDKPublicKey pubkey_arg_ref;
        CHECK(pubkey_arg->arr_len == 33);
-       memcpy(pubkey_arg_ref.compressed_form, pubkey_arg->elems, 33);
+       memcpy(pubkey_arg_ref.compressed_form, pubkey_arg->elems, 33); FREE(pubkey_arg);
        LDKNodeFeatures node_features_arg_conv;
        node_features_arg_conv.inner = (void*)(node_features_arg & (~1));
        node_features_arg_conv.is_owned = (node_features_arg & 1) || (node_features_arg == 0);
@@ -33435,11 +33448,11 @@ uint32_t  __attribute__((export_name("TS_RouteHop_new"))) TS_RouteHop_new(int8_t
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_features_arg_conv);
        channel_features_arg_conv = ChannelFeatures_clone(&channel_features_arg_conv);
        LDKRouteHop ret_var = RouteHop_new(pubkey_arg_ref, node_features_arg_conv, short_channel_id_arg, channel_features_arg_conv, fee_msat_arg, cltv_expiry_delta_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33448,22 +33461,22 @@ uint32_t  __attribute__((export_name("TS_RouteHop_new"))) TS_RouteHop_new(int8_t
 
 static inline uintptr_t RouteHop_clone_ptr(LDKRouteHop *NONNULL_PTR arg) {
        LDKRouteHop ret_var = RouteHop_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RouteHop_clone_ptr"))) TS_RouteHop_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RouteHop_clone_ptr"))) TS_RouteHop_clone_ptr(uint32_t arg) {
        LDKRouteHop arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RouteHop_clone_ptr(&arg_conv);
+       intptr_t ret_val = RouteHop_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -33473,11 +33486,11 @@ uint32_t  __attribute__((export_name("TS_RouteHop_clone"))) TS_RouteHop_clone(ui
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRouteHop ret_var = RouteHop_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33512,7 +33525,7 @@ int8_tArray  __attribute__((export_name("TS_RouteHop_write"))) TS_RouteHop_write
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RouteHop_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -33521,10 +33534,10 @@ int8_tArray  __attribute__((export_name("TS_RouteHop_write"))) TS_RouteHop_write
 uint32_t  __attribute__((export_name("TS_RouteHop_read"))) TS_RouteHop_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = RouteHop_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_Route_free"))) TS_Route_free(uint32_t this_obj) {
@@ -33542,20 +33555,20 @@ ptrArray  __attribute__((export_name("TS_Route_get_paths"))) TS_Route_get_paths(
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_CVec_RouteHopZZ ret_var = Route_get_paths(&this_ptr_conv);
        ptrArray ret_arr = NULL;
-       ret_arr = init_ptrArray(ret_var.datalen);
+       ret_arr = init_ptrArray(ret_var.datalen, __LINE__);
        uint32_tArray *ret_arr_ptr = (uint32_tArray*)(((uint8_t*)ret_arr) + 4);
        for (size_t m = 0; m < ret_var.datalen; m++) {
                LDKCVec_RouteHopZ ret_conv_12_var = ret_var.data[m];
                uint32_tArray ret_conv_12_arr = NULL;
-               ret_conv_12_arr = init_uint32_tArray(ret_conv_12_var.datalen);
+               ret_conv_12_arr = init_uint32_tArray(ret_conv_12_var.datalen, __LINE__);
                uint32_t *ret_conv_12_arr_ptr = (uint32_t*)(((uint8_t*)ret_conv_12_arr) + 4);
                for (size_t k = 0; k < ret_conv_12_var.datalen; k++) {
                        LDKRouteHop ret_conv_12_conv_10_var = ret_conv_12_var.data[k];
-                       uint64_t ret_conv_12_conv_10_ref = 0;
-                       CHECK((((uint64_t)ret_conv_12_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uint64_t)&ret_conv_12_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uintptr_t ret_conv_12_conv_10_ref = 0;
+                       CHECK((((uintptr_t)ret_conv_12_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uintptr_t)&ret_conv_12_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_12_conv_10_var);
-                       ret_conv_12_conv_10_ref = (uint64_t)ret_conv_12_conv_10_var.inner;
+                       ret_conv_12_conv_10_ref = (uintptr_t)ret_conv_12_conv_10_var.inner;
                        if (ret_conv_12_conv_10_var.is_owned) {
                                ret_conv_12_conv_10_ref |= 1;
                        }
@@ -33581,7 +33594,7 @@ void  __attribute__((export_name("TS_Route_set_paths"))) TS_Route_set_paths(uint
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKCVec_RouteHopZ), "LDKCVec_CVec_RouteHopZZ Elements");
        else
                val_constr.data = NULL;
-       uint32_tArray* val_vals = (void*) val->elems;
+       uint32_tArray* val_vals = (void*) val->elems /* XXX val leaks */;
        for (size_t m = 0; m < val_constr.datalen; m++) {
                uint32_tArray val_conv_12 = val_vals[m];
                LDKCVec_RouteHopZ val_conv_12_constr;
@@ -33590,7 +33603,7 @@ void  __attribute__((export_name("TS_Route_set_paths"))) TS_Route_set_paths(uint
                        val_conv_12_constr.data = MALLOC(val_conv_12_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
                else
                        val_conv_12_constr.data = NULL;
-               uint32_t* val_conv_12_vals = val_conv_12->elems;
+               uint32_t* val_conv_12_vals = val_conv_12->elems /* XXX val_conv_12 leaks */;
                for (size_t k = 0; k < val_conv_12_constr.datalen; k++) {
                        uint32_t val_conv_12_conv_10 = val_conv_12_vals[k];
                        LDKRouteHop val_conv_12_conv_10_conv;
@@ -33611,12 +33624,12 @@ uint32_t  __attribute__((export_name("TS_Route_get_payee"))) TS_Route_get_payee(
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPayee ret_var = Route_get_payee(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -33644,7 +33657,7 @@ uint32_t  __attribute__((export_name("TS_Route_new"))) TS_Route_new(ptrArray pat
                paths_arg_constr.data = MALLOC(paths_arg_constr.datalen * sizeof(LDKCVec_RouteHopZ), "LDKCVec_CVec_RouteHopZZ Elements");
        else
                paths_arg_constr.data = NULL;
-       uint32_tArray* paths_arg_vals = (void*) paths_arg->elems;
+       uint32_tArray* paths_arg_vals = (void*) paths_arg->elems /* XXX paths_arg leaks */;
        for (size_t m = 0; m < paths_arg_constr.datalen; m++) {
                uint32_tArray paths_arg_conv_12 = paths_arg_vals[m];
                LDKCVec_RouteHopZ paths_arg_conv_12_constr;
@@ -33653,7 +33666,7 @@ uint32_t  __attribute__((export_name("TS_Route_new"))) TS_Route_new(ptrArray pat
                        paths_arg_conv_12_constr.data = MALLOC(paths_arg_conv_12_constr.datalen * sizeof(LDKRouteHop), "LDKCVec_RouteHopZ Elements");
                else
                        paths_arg_conv_12_constr.data = NULL;
-               uint32_t* paths_arg_conv_12_vals = paths_arg_conv_12->elems;
+               uint32_t* paths_arg_conv_12_vals = paths_arg_conv_12->elems /* XXX paths_arg_conv_12 leaks */;
                for (size_t k = 0; k < paths_arg_conv_12_constr.datalen; k++) {
                        uint32_t paths_arg_conv_12_conv_10 = paths_arg_conv_12_vals[k];
                        LDKRouteHop paths_arg_conv_12_conv_10_conv;
@@ -33671,11 +33684,11 @@ uint32_t  __attribute__((export_name("TS_Route_new"))) TS_Route_new(ptrArray pat
        CHECK_INNER_FIELD_ACCESS_OR_NULL(payee_arg_conv);
        payee_arg_conv = Payee_clone(&payee_arg_conv);
        LDKRoute ret_var = Route_new(paths_arg_constr, payee_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33684,22 +33697,22 @@ uint32_t  __attribute__((export_name("TS_Route_new"))) TS_Route_new(ptrArray pat
 
 static inline uintptr_t Route_clone_ptr(LDKRoute *NONNULL_PTR arg) {
        LDKRoute ret_var = Route_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Route_clone_ptr"))) TS_Route_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Route_clone_ptr"))) TS_Route_clone_ptr(uint32_t arg) {
        LDKRoute arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Route_clone_ptr(&arg_conv);
+       intptr_t ret_val = Route_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -33709,11 +33722,11 @@ uint32_t  __attribute__((export_name("TS_Route_clone"))) TS_Route_clone(uint32_t
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRoute ret_var = Route_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33766,7 +33779,7 @@ int8_tArray  __attribute__((export_name("TS_Route_write"))) TS_Route_write(uint3
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Route_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -33775,10 +33788,10 @@ int8_tArray  __attribute__((export_name("TS_Route_write"))) TS_Route_write(uint3
 uint32_t  __attribute__((export_name("TS_Route_read"))) TS_Route_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = Route_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_RouteParameters_free"))) TS_RouteParameters_free(uint32_t this_obj) {
@@ -33795,11 +33808,11 @@ uint32_t  __attribute__((export_name("TS_RouteParameters_get_payee"))) TS_RouteP
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPayee ret_var = RouteParameters_get_payee(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33860,11 +33873,11 @@ uint32_t  __attribute__((export_name("TS_RouteParameters_new"))) TS_RouteParamet
        CHECK_INNER_FIELD_ACCESS_OR_NULL(payee_arg_conv);
        payee_arg_conv = Payee_clone(&payee_arg_conv);
        LDKRouteParameters ret_var = RouteParameters_new(payee_arg_conv, final_value_msat_arg, final_cltv_expiry_delta_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33873,22 +33886,22 @@ uint32_t  __attribute__((export_name("TS_RouteParameters_new"))) TS_RouteParamet
 
 static inline uintptr_t RouteParameters_clone_ptr(LDKRouteParameters *NONNULL_PTR arg) {
        LDKRouteParameters ret_var = RouteParameters_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RouteParameters_clone_ptr"))) TS_RouteParameters_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RouteParameters_clone_ptr"))) TS_RouteParameters_clone_ptr(uint32_t arg) {
        LDKRouteParameters arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RouteParameters_clone_ptr(&arg_conv);
+       intptr_t ret_val = RouteParameters_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -33898,11 +33911,11 @@ uint32_t  __attribute__((export_name("TS_RouteParameters_clone"))) TS_RouteParam
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRouteParameters ret_var = RouteParameters_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -33915,7 +33928,7 @@ int8_tArray  __attribute__((export_name("TS_RouteParameters_write"))) TS_RoutePa
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RouteParameters_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -33924,10 +33937,10 @@ int8_tArray  __attribute__((export_name("TS_RouteParameters_write"))) TS_RoutePa
 uint32_t  __attribute__((export_name("TS_RouteParameters_read"))) TS_RouteParameters_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = RouteParameters_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_Payee_free"))) TS_Payee_free(uint32_t this_obj) {
@@ -33943,7 +33956,7 @@ int8_tArray  __attribute__((export_name("TS_Payee_get_pubkey"))) TS_Payee_get_pu
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, Payee_get_pubkey(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -33955,7 +33968,7 @@ void  __attribute__((export_name("TS_Payee_set_pubkey"))) TS_Payee_set_pubkey(ui
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        Payee_set_pubkey(&this_ptr_conv, val_ref);
 }
 
@@ -33965,12 +33978,12 @@ uint32_t  __attribute__((export_name("TS_Payee_get_features"))) TS_Payee_get_fea
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKInvoiceFeatures ret_var = Payee_get_features(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       if ((uint64_t)ret_var.inner > 4096) {
-               CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       if ((uintptr_t)ret_var.inner > 4096) {
+               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uint64_t)ret_var.inner;
+               ret_ref = (uintptr_t)ret_var.inner;
                if (ret_var.is_owned) {
                        ret_ref |= 1;
                }
@@ -33998,15 +34011,15 @@ uint32_tArray  __attribute__((export_name("TS_Payee_get_route_hints"))) TS_Payee
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_RouteHintZ ret_var = Payee_get_route_hints(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t l = 0; l < ret_var.datalen; l++) {
                LDKRouteHint ret_conv_11_var = ret_var.data[l];
-               uint64_t ret_conv_11_ref = 0;
-               CHECK((((uint64_t)ret_conv_11_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_11_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_11_ref = 0;
+               CHECK((((uintptr_t)ret_conv_11_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_11_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_11_var);
-               ret_conv_11_ref = (uint64_t)ret_conv_11_var.inner;
+               ret_conv_11_ref = (uintptr_t)ret_conv_11_var.inner;
                if (ret_conv_11_var.is_owned) {
                        ret_conv_11_ref |= 1;
                }
@@ -34028,7 +34041,7 @@ void  __attribute__((export_name("TS_Payee_set_route_hints"))) TS_Payee_set_rout
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKRouteHint), "LDKCVec_RouteHintZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t l = 0; l < val_constr.datalen; l++) {
                uint32_t val_conv_11 = val_vals[l];
                LDKRouteHint val_conv_11_conv;
@@ -34048,7 +34061,7 @@ uint32_t  __attribute__((export_name("TS_Payee_get_expiry_time"))) TS_Payee_get_
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = Payee_get_expiry_time(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -34057,17 +34070,17 @@ void  __attribute__((export_name("TS_Payee_set_expiry_time"))) TS_Payee_set_expi
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        Payee_set_expiry_time(&this_ptr_conv, val_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_Payee_new"))) TS_Payee_new(int8_tArray pubkey_arg, uint32_t features_arg, uint32_tArray route_hints_arg, uint32_t expiry_time_arg) {
        LDKPublicKey pubkey_arg_ref;
        CHECK(pubkey_arg->arr_len == 33);
-       memcpy(pubkey_arg_ref.compressed_form, pubkey_arg->elems, 33);
+       memcpy(pubkey_arg_ref.compressed_form, pubkey_arg->elems, 33); FREE(pubkey_arg);
        LDKInvoiceFeatures features_arg_conv;
        features_arg_conv.inner = (void*)(features_arg & (~1));
        features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
@@ -34079,7 +34092,7 @@ uint32_t  __attribute__((export_name("TS_Payee_new"))) TS_Payee_new(int8_tArray
                route_hints_arg_constr.data = MALLOC(route_hints_arg_constr.datalen * sizeof(LDKRouteHint), "LDKCVec_RouteHintZ Elements");
        else
                route_hints_arg_constr.data = NULL;
-       uint32_t* route_hints_arg_vals = route_hints_arg->elems;
+       uint32_t* route_hints_arg_vals = route_hints_arg->elems /* XXX route_hints_arg leaks */;
        for (size_t l = 0; l < route_hints_arg_constr.datalen; l++) {
                uint32_t route_hints_arg_conv_11 = route_hints_arg_vals[l];
                LDKRouteHint route_hints_arg_conv_11_conv;
@@ -34089,16 +34102,16 @@ uint32_t  __attribute__((export_name("TS_Payee_new"))) TS_Payee_new(int8_tArray
                route_hints_arg_conv_11_conv = RouteHint_clone(&route_hints_arg_conv_11_conv);
                route_hints_arg_constr.data[l] = route_hints_arg_conv_11_conv;
        }
-       void* expiry_time_arg_ptr = (void*)(((uint64_t)expiry_time_arg) & ~1);
+       void* expiry_time_arg_ptr = (void*)(((uintptr_t)expiry_time_arg) & ~1);
        CHECK_ACCESS(expiry_time_arg_ptr);
        LDKCOption_u64Z expiry_time_arg_conv = *(LDKCOption_u64Z*)(expiry_time_arg_ptr);
-       expiry_time_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)expiry_time_arg) & ~1));
+       expiry_time_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)expiry_time_arg) & ~1));
        LDKPayee ret_var = Payee_new(pubkey_arg_ref, features_arg_conv, route_hints_arg_constr, expiry_time_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34107,22 +34120,22 @@ uint32_t  __attribute__((export_name("TS_Payee_new"))) TS_Payee_new(int8_tArray
 
 static inline uintptr_t Payee_clone_ptr(LDKPayee *NONNULL_PTR arg) {
        LDKPayee ret_var = Payee_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_Payee_clone_ptr"))) TS_Payee_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_Payee_clone_ptr"))) TS_Payee_clone_ptr(uint32_t arg) {
        LDKPayee arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = Payee_clone_ptr(&arg_conv);
+       intptr_t ret_val = Payee_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -34132,11 +34145,11 @@ uint32_t  __attribute__((export_name("TS_Payee_clone"))) TS_Payee_clone(uint32_t
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKPayee ret_var = Payee_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34171,7 +34184,7 @@ int8_tArray  __attribute__((export_name("TS_Payee_write"))) TS_Payee_write(uint3
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = Payee_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -34180,22 +34193,22 @@ int8_tArray  __attribute__((export_name("TS_Payee_write"))) TS_Payee_write(uint3
 uint32_t  __attribute__((export_name("TS_Payee_read"))) TS_Payee_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_PayeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeeDecodeErrorZ), "LDKCResult_PayeeDecodeErrorZ");
        *ret_conv = Payee_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_Payee_from_node_id"))) TS_Payee_from_node_id(int8_tArray pubkey) {
        LDKPublicKey pubkey_ref;
        CHECK(pubkey->arr_len == 33);
-       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33);
+       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33); FREE(pubkey);
        LDKPayee ret_var = Payee_from_node_id(pubkey_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34205,13 +34218,13 @@ uint32_t  __attribute__((export_name("TS_Payee_from_node_id"))) TS_Payee_from_no
 uint32_t  __attribute__((export_name("TS_Payee_for_keysend"))) TS_Payee_for_keysend(int8_tArray pubkey) {
        LDKPublicKey pubkey_ref;
        CHECK(pubkey->arr_len == 33);
-       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33);
+       memcpy(pubkey_ref.compressed_form, pubkey->elems, 33); FREE(pubkey);
        LDKPayee ret_var = Payee_for_keysend(pubkey_ref);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34233,15 +34246,15 @@ uint32_tArray  __attribute__((export_name("TS_RouteHint_get_a"))) TS_RouteHint_g
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCVec_RouteHintHopZ ret_var = RouteHint_get_a(&this_ptr_conv);
        uint32_tArray ret_arr = NULL;
-       ret_arr = init_uint32_tArray(ret_var.datalen);
+       ret_arr = init_uint32_tArray(ret_var.datalen, __LINE__);
        uint32_t *ret_arr_ptr = (uint32_t*)(((uint8_t*)ret_arr) + 4);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKRouteHintHop ret_conv_14_var = ret_var.data[o];
-               uint64_t ret_conv_14_ref = 0;
-               CHECK((((uint64_t)ret_conv_14_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uint64_t)&ret_conv_14_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+               uintptr_t ret_conv_14_ref = 0;
+               CHECK((((uintptr_t)ret_conv_14_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+               CHECK((((uintptr_t)&ret_conv_14_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_14_var);
-               ret_conv_14_ref = (uint64_t)ret_conv_14_var.inner;
+               ret_conv_14_ref = (uintptr_t)ret_conv_14_var.inner;
                if (ret_conv_14_var.is_owned) {
                        ret_conv_14_ref |= 1;
                }
@@ -34263,7 +34276,7 @@ void  __attribute__((export_name("TS_RouteHint_set_a"))) TS_RouteHint_set_a(uint
                val_constr.data = MALLOC(val_constr.datalen * sizeof(LDKRouteHintHop), "LDKCVec_RouteHintHopZ Elements");
        else
                val_constr.data = NULL;
-       uint32_t* val_vals = val->elems;
+       uint32_t* val_vals = val->elems /* XXX val leaks */;
        for (size_t o = 0; o < val_constr.datalen; o++) {
                uint32_t val_conv_14 = val_vals[o];
                LDKRouteHintHop val_conv_14_conv;
@@ -34283,7 +34296,7 @@ uint32_t  __attribute__((export_name("TS_RouteHint_new"))) TS_RouteHint_new(uint
                a_arg_constr.data = MALLOC(a_arg_constr.datalen * sizeof(LDKRouteHintHop), "LDKCVec_RouteHintHopZ Elements");
        else
                a_arg_constr.data = NULL;
-       uint32_t* a_arg_vals = a_arg->elems;
+       uint32_t* a_arg_vals = a_arg->elems /* XXX a_arg leaks */;
        for (size_t o = 0; o < a_arg_constr.datalen; o++) {
                uint32_t a_arg_conv_14 = a_arg_vals[o];
                LDKRouteHintHop a_arg_conv_14_conv;
@@ -34294,11 +34307,11 @@ uint32_t  __attribute__((export_name("TS_RouteHint_new"))) TS_RouteHint_new(uint
                a_arg_constr.data[o] = a_arg_conv_14_conv;
        }
        LDKRouteHint ret_var = RouteHint_new(a_arg_constr);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34307,22 +34320,22 @@ uint32_t  __attribute__((export_name("TS_RouteHint_new"))) TS_RouteHint_new(uint
 
 static inline uintptr_t RouteHint_clone_ptr(LDKRouteHint *NONNULL_PTR arg) {
        LDKRouteHint ret_var = RouteHint_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RouteHint_clone_ptr"))) TS_RouteHint_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RouteHint_clone_ptr"))) TS_RouteHint_clone_ptr(uint32_t arg) {
        LDKRouteHint arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RouteHint_clone_ptr(&arg_conv);
+       intptr_t ret_val = RouteHint_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -34332,11 +34345,11 @@ uint32_t  __attribute__((export_name("TS_RouteHint_clone"))) TS_RouteHint_clone(
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRouteHint ret_var = RouteHint_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34371,7 +34384,7 @@ int8_tArray  __attribute__((export_name("TS_RouteHint_write"))) TS_RouteHint_wri
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RouteHint_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -34380,10 +34393,10 @@ int8_tArray  __attribute__((export_name("TS_RouteHint_write"))) TS_RouteHint_wri
 uint32_t  __attribute__((export_name("TS_RouteHint_read"))) TS_RouteHint_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = RouteHint_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_RouteHintHop_free"))) TS_RouteHintHop_free(uint32_t this_obj) {
@@ -34399,7 +34412,7 @@ int8_tArray  __attribute__((export_name("TS_RouteHintHop_get_src_node_id"))) TS_
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       int8_tArray ret_arr = init_int8_tArray(33);
+       int8_tArray ret_arr = init_int8_tArray(33, __LINE__);
        memcpy(ret_arr->elems, RouteHintHop_get_src_node_id(&this_ptr_conv).compressed_form, 33);
        return ret_arr;
 }
@@ -34411,7 +34424,7 @@ void  __attribute__((export_name("TS_RouteHintHop_set_src_node_id"))) TS_RouteHi
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKPublicKey val_ref;
        CHECK(val->arr_len == 33);
-       memcpy(val_ref.compressed_form, val->elems, 33);
+       memcpy(val_ref.compressed_form, val->elems, 33); FREE(val);
        RouteHintHop_set_src_node_id(&this_ptr_conv, val_ref);
 }
 
@@ -34438,11 +34451,11 @@ uint32_t  __attribute__((export_name("TS_RouteHintHop_get_fees"))) TS_RouteHintH
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKRoutingFees ret_var = RouteHintHop_get_fees(&this_ptr_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34486,7 +34499,7 @@ uint32_t  __attribute__((export_name("TS_RouteHintHop_get_htlc_minimum_msat")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = RouteHintHop_get_htlc_minimum_msat(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -34495,10 +34508,10 @@ void  __attribute__((export_name("TS_RouteHintHop_set_htlc_minimum_msat"))) TS_R
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        RouteHintHop_set_htlc_minimum_msat(&this_ptr_conv, val_conv);
 }
 
@@ -34509,7 +34522,7 @@ uint32_t  __attribute__((export_name("TS_RouteHintHop_get_htlc_maximum_msat")))
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = RouteHintHop_get_htlc_maximum_msat(&this_ptr_conv);
-       uint64_t ret_ref = (uint64_t)ret_copy;
+       uintptr_t ret_ref = (uintptr_t)ret_copy;
        return ret_ref;
 }
 
@@ -34518,36 +34531,36 @@ void  __attribute__((export_name("TS_RouteHintHop_set_htlc_maximum_msat"))) TS_R
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
        RouteHintHop_set_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
 
 uint32_t  __attribute__((export_name("TS_RouteHintHop_new"))) TS_RouteHintHop_new(int8_tArray src_node_id_arg, int64_t short_channel_id_arg, uint32_t fees_arg, int16_t cltv_expiry_delta_arg, uint32_t htlc_minimum_msat_arg, uint32_t htlc_maximum_msat_arg) {
        LDKPublicKey src_node_id_arg_ref;
        CHECK(src_node_id_arg->arr_len == 33);
-       memcpy(src_node_id_arg_ref.compressed_form, src_node_id_arg->elems, 33);
+       memcpy(src_node_id_arg_ref.compressed_form, src_node_id_arg->elems, 33); FREE(src_node_id_arg);
        LDKRoutingFees fees_arg_conv;
        fees_arg_conv.inner = (void*)(fees_arg & (~1));
        fees_arg_conv.is_owned = (fees_arg & 1) || (fees_arg == 0);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(fees_arg_conv);
        fees_arg_conv = RoutingFees_clone(&fees_arg_conv);
-       void* htlc_minimum_msat_arg_ptr = (void*)(((uint64_t)htlc_minimum_msat_arg) & ~1);
+       void* htlc_minimum_msat_arg_ptr = (void*)(((uintptr_t)htlc_minimum_msat_arg) & ~1);
        CHECK_ACCESS(htlc_minimum_msat_arg_ptr);
        LDKCOption_u64Z htlc_minimum_msat_arg_conv = *(LDKCOption_u64Z*)(htlc_minimum_msat_arg_ptr);
-       htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)htlc_minimum_msat_arg) & ~1));
-       void* htlc_maximum_msat_arg_ptr = (void*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_minimum_msat_arg) & ~1));
+       void* htlc_maximum_msat_arg_ptr = (void*)(((uintptr_t)htlc_maximum_msat_arg) & ~1);
        CHECK_ACCESS(htlc_maximum_msat_arg_ptr);
        LDKCOption_u64Z htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(htlc_maximum_msat_arg_ptr);
-       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)htlc_maximum_msat_arg) & ~1));
+       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_maximum_msat_arg) & ~1));
        LDKRouteHintHop ret_var = RouteHintHop_new(src_node_id_arg_ref, short_channel_id_arg, fees_arg_conv, cltv_expiry_delta_arg, htlc_minimum_msat_arg_conv, htlc_maximum_msat_arg_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34556,22 +34569,22 @@ uint32_t  __attribute__((export_name("TS_RouteHintHop_new"))) TS_RouteHintHop_ne
 
 static inline uintptr_t RouteHintHop_clone_ptr(LDKRouteHintHop *NONNULL_PTR arg) {
        LDKRouteHintHop ret_var = RouteHintHop_clone(arg);
-uint64_t ret_ref = 0;
-CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+uintptr_t ret_ref = 0;
+CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
 CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uint64_t)ret_var.inner;
+ret_ref = (uintptr_t)ret_var.inner;
 if (ret_var.is_owned) {
        ret_ref |= 1;
 }
        return ret_ref;
 }
-int64_t  __attribute__((export_name("TS_RouteHintHop_clone_ptr"))) TS_RouteHintHop_clone_ptr(uint32_t arg) {
+intptr_t  __attribute__((export_name("TS_RouteHintHop_clone_ptr"))) TS_RouteHintHop_clone_ptr(uint32_t arg) {
        LDKRouteHintHop arg_conv;
        arg_conv.inner = (void*)(arg & (~1));
        arg_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
-       int64_t ret_val = RouteHintHop_clone_ptr(&arg_conv);
+       intptr_t ret_val = RouteHintHop_clone_ptr(&arg_conv);
        return ret_val;
 }
 
@@ -34581,11 +34594,11 @@ uint32_t  __attribute__((export_name("TS_RouteHintHop_clone"))) TS_RouteHintHop_
        orig_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
        LDKRouteHintHop ret_var = RouteHintHop_clone(&orig_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34620,7 +34633,7 @@ int8_tArray  __attribute__((export_name("TS_RouteHintHop_write"))) TS_RouteHintH
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = RouteHintHop_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -34629,16 +34642,16 @@ int8_tArray  __attribute__((export_name("TS_RouteHintHop_write"))) TS_RouteHintH
 uint32_t  __attribute__((export_name("TS_RouteHintHop_read"))) TS_RouteHintHop_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = RouteHintHop_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_find_route"))) TS_find_route(int8_tArray our_node_pubkey, uint32_t params, uint32_t network, uint32_tArray first_hops, uint32_t logger, uint32_t scorer) {
        LDKPublicKey our_node_pubkey_ref;
        CHECK(our_node_pubkey->arr_len == 33);
-       memcpy(our_node_pubkey_ref.compressed_form, our_node_pubkey->elems, 33);
+       memcpy(our_node_pubkey_ref.compressed_form, our_node_pubkey->elems, 33); FREE(our_node_pubkey);
        LDKRouteParameters params_conv;
        params_conv.inner = (void*)(params & (~1));
        params_conv.is_owned = false;
@@ -34655,7 +34668,7 @@ uint32_t  __attribute__((export_name("TS_find_route"))) TS_find_route(int8_tArra
                        first_hops_constr.data = MALLOC(first_hops_constr.datalen * sizeof(LDKChannelDetails), "LDKCVec_ChannelDetailsZ Elements");
                else
                        first_hops_constr.data = NULL;
-               uint32_t* first_hops_vals = first_hops->elems;
+               uint32_t* first_hops_vals = first_hops->elems /* XXX first_hops leaks */;
                for (size_t q = 0; q < first_hops_constr.datalen; q++) {
                        uint32_t first_hops_conv_16 = first_hops_vals[q];
                        LDKChannelDetails first_hops_conv_16_conv;
@@ -34666,21 +34679,21 @@ uint32_t  __attribute__((export_name("TS_find_route"))) TS_find_route(int8_tArra
                }
                first_hops_ptr = &first_hops_constr;
        }
-       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
-       void* scorer_ptr = (void*)(((uint64_t)scorer) & ~1);
+       void* scorer_ptr = (void*)(((uintptr_t)scorer) & ~1);
        if (!(scorer & 1)) { CHECK_ACCESS(scorer_ptr); }
        LDKScore* scorer_conv = (LDKScore*)scorer_ptr;
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = find_route(our_node_pubkey_ref, &params_conv, &network_conv, first_hops_ptr, logger_conv, scorer_conv);
        if (first_hops_ptr != NULL) { FREE(first_hops_constr.data); }
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 void  __attribute__((export_name("TS_Score_free"))) TS_Score_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKScore this_ptr_conv = *(LDKScore*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -34689,7 +34702,7 @@ void  __attribute__((export_name("TS_Score_free"))) TS_Score_free(uint32_t this_
 
 void  __attribute__((export_name("TS_LockableScore_free"))) TS_LockableScore_free(uint32_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
        CHECK_ACCESS(this_ptr_ptr);
        LDKLockableScore this_ptr_conv = *(LDKLockableScore*)(this_ptr_ptr);
        FREE((void*)this_ptr);
@@ -34705,15 +34718,15 @@ void  __attribute__((export_name("TS_MultiThreadedLockableScore_free"))) TS_Mult
 }
 
 uint32_t  __attribute__((export_name("TS_MultiThreadedLockableScore_new"))) TS_MultiThreadedLockableScore_new(uint32_t score) {
-       void* score_ptr = (void*)(((uint64_t)score) & ~1);
+       void* score_ptr = (void*)(((uintptr_t)score) & ~1);
        CHECK_ACCESS(score_ptr);
        LDKScore score_conv = *(LDKScore*)(score_ptr);
        LDKMultiThreadedLockableScore ret_var = MultiThreadedLockableScore_new(score_conv);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34815,11 +34828,11 @@ void  __attribute__((export_name("TS_ScoringParameters_set_failure_penalty_half_
 
 uint32_t  __attribute__((export_name("TS_ScoringParameters_new"))) TS_ScoringParameters_new(int64_t base_penalty_msat_arg, int64_t failure_penalty_msat_arg, int16_t overuse_penalty_start_1024th_arg, int64_t overuse_penalty_msat_per_1024th_arg, int64_t failure_penalty_half_life_arg) {
        LDKScoringParameters ret_var = ScoringParameters_new(base_penalty_msat_arg, failure_penalty_msat_arg, overuse_penalty_start_1024th_arg, overuse_penalty_msat_per_1024th_arg, failure_penalty_half_life_arg);
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }
@@ -34832,7 +34845,7 @@ int8_tArray  __attribute__((export_name("TS_ScoringParameters_write"))) TS_Scori
        obj_conv.is_owned = false;
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
        LDKCVec_u8Z ret_var = ScoringParameters_write(&obj_conv);
-       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen);
+       int8_tArray ret_arr = init_int8_tArray(ret_var.datalen, __LINE__);
        memcpy(ret_arr->elems, ret_var.data, ret_var.datalen);
        CVec_u8Z_free(ret_var);
        return ret_arr;
@@ -34841,19 +34854,19 @@ int8_tArray  __attribute__((export_name("TS_ScoringParameters_write"))) TS_Scori
 uint32_t  __attribute__((export_name("TS_ScoringParameters_read"))) TS_ScoringParameters_read(int8_tArray ser) {
        LDKu8slice ser_ref;
        ser_ref.datalen = ser->arr_len;
-       ser_ref.data = ser->elems;
+       ser_ref.data = ser->elems /* XXX ser leaks */;
        LDKCResult_ScoringParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ScoringParametersDecodeErrorZ), "LDKCResult_ScoringParametersDecodeErrorZ");
        *ret_conv = ScoringParameters_read(ser_ref);
-       return (uint64_t)ret_conv;
+       return (uintptr_t)ret_conv;
 }
 
 uint32_t  __attribute__((export_name("TS_ScoringParameters_default"))) TS_ScoringParameters_default() {
        LDKScoringParameters ret_var = ScoringParameters_default();
-       uint64_t ret_ref = 0;
-       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uintptr_t ret_ref = 0;
+       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uint64_t)ret_var.inner;
+       ret_ref = (uintptr_t)ret_var.inner;
        if (ret_var.is_owned) {
                ret_ref |= 1;
        }