--- /dev/null
+from bindingstypes import *
+from enum import Enum
+import sys
+
+class Target(Enum):
+ CSHARP = 1,
+
+class Consts:
+ def __init__(self, DEBUG: bool, target: Target, **kwargs):
+ self.target = target
+ self.c_array_class_caches = set()
+ self.c_type_map = dict(
+ bool = ['bool'],
+ uint8_t = ['byte'],
+ uint16_t = ['short'],
+ uint32_t = ['int'],
+ uint64_t = ['long'],
+ )
+ self.java_type_map = dict(
+ String = "string"
+ )
+ self.java_hu_type_map = dict(
+ String = "string"
+ )
+
+ self.to_hu_conv_templates = dict(
+ ptr = '{human_type} {var_name}_hu_conv = null; if ({var_name} < 0 || {var_name} > 4096) { {var_name}_hu_conv = new {human_type}(null, {var_name}); }',
+ default = '{human_type} {var_name}_hu_conv = null; if ({var_name} < 0 || {var_name} > 4096) { {var_name}_hu_conv = new {human_type}(null, {var_name}); }'
+ )
+
+ self.bindings_header = """
+using org.ldk.enums;
+using org.ldk.impl;
+using System.Runtime.InteropServices;
+
+namespace org { namespace ldk { namespace impl {
+
+internal class bindings {
+ /*static {
+ init(java.lang.Enum.class, VecOrSliceDef.class);
+ init_class_cache();
+ if (!get_lib_version_string().equals(version.get_ldk_java_bindings_version()))
+ throw new ArgumentException("Compiled LDK library and LDK class failes do not match");
+ // Fetching the LDK versions from C also checks that the header and binaries match
+ Console.Error.WriteLine("Loaded LDK-Java Bindings " + version.get_ldk_java_bindings_version() + " with LDK " + get_ldk_version() + " and LDK-C-Bindings " + get_ldk_c_bindings_version());
+ }*/
+ //static extern void init(java.lang.Class c);
+ //static native void init_class_cache();
+"""
+ self.bindings_header += self.native_meth_decl("get_lib_version_string", "string") + "();\n"
+ self.bindings_header += self.native_meth_decl("get_ldk_c_bindings_version", "string") + "();\n"
+ self.bindings_header += self.native_meth_decl("get_ldk_version", "string") + "();\n\n"
+
+ self.bindings_version_file = """
+
+public class version {
+ public static string get_ldk_java_bindings_version() {
+ return "<git_version_ldk_garbagecollected>";
+ }
+}"""
+
+ self.util_fn_pfx = """using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using org.ldk.structs;
+using System;
+
+namespace org { namespace ldk { namespace util {
+public class UtilMethods {
+"""
+ self.util_fn_sfx = "} } } }"
+ self.common_base = """using System.Collections.Generic;
+using System.Diagnostics;
+
+public class CommonBase {
+ protected internal long ptr;
+ protected internal LinkedList<object> ptrs_to = new LinkedList<object>();
+ protected CommonBase(long ptr) { Trace.Assert(ptr < 0 || ptr > 4096); this.ptr = ptr; }
+}
+"""
+
+ self.txout_defn = """public class TxOut : CommonBase {
+ /** The script_pubkey in this output */
+ public readonly byte[] script_pubkey;
+ /** The value, in satoshis, of this output */
+ public readonly long value;
+
+ internal TxOut(object _dummy, long ptr) : base(ptr) {
+ this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr);
+ this.value = bindings.TxOut_get_value(ptr);
+ }
+ public TxOut(long value, byte[] script_pubkey) : base(bindings.TxOut_new(script_pubkey, value)) {
+ this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr);
+ this.value = bindings.TxOut_get_value(ptr);
+ }
+
+ ~TxOut() {
+ if (ptr != 0) { bindings.TxOut_free(ptr); }
+ }
+}"""
+
+ self.scalar_defn = """public class BigEndianScalar : CommonBase {
+ /** The bytes of the scalar value, in big endian */
+ public readonly byte[] scalar_bytes;
+
+ internal BigEndianScalar(object _dummy, long ptr) : base(ptr) {
+ this.scalar_bytes = bindings.BigEndianScalar_get_bytes(ptr);
+ }
+ public BigEndianScalar(byte[] scalar_bytes) : base(bindings.BigEndianScalar_new(scalar_bytes)) {
+ this.scalar_bytes = bindings.BigEndianScalar_get_bytes(ptr);
+ }
+
+ ~BigEndianScalar() {
+ if (ptr != 0) { bindings.BigEndianScalar_free(ptr); }
+ }
+}"""
+
+
+ self.c_file_pfx = """
+// On OSX jlong (ie long long) is not equivalent to int64_t, so we override here
+#define int64_t jlong
+#include <lightning.h>
+#include <string.h>
+#include <stdatomic.h>
+#include <stdlib.h>
+
+#define LIKELY(v) __builtin_expect(!!(v), 1)
+#define UNLIKELY(v) __builtin_expect(!!(v), 0)
+
+"""
+
+ self.c_file_pfx = self.c_file_pfx + "#include <stdio.h>\n#define DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)\n"
+
+ if not DEBUG or sys.platform == "darwin":
+ self.c_file_pfx = self.c_file_pfx + """#define MALLOC(a, _) malloc(a)
+#define FREE(p) if ((uint64_t)(p) > 4096) { free(p); }
+#define CHECK_ACCESS(p)
+#define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
+"""
+ if not DEBUG:
+ self.c_file_pfx += """#define DO_ASSERT(a) (void)(a)
+#define CHECK(a)
+"""
+ if DEBUG:
+ self.c_file_pfx = self.c_file_pfx + """#include <assert.h>
+// Always run a, then assert it is true:
+#define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
+// Assert a is true or do nothing
+#define CHECK(a) DO_ASSERT(a)
+
+void __attribute__((constructor)) debug_log_version() {
+ if (check_get_ldk_version() == NULL)
+ DEBUG_PRINT("LDK version did not match the header we built against\\n");
+ if (check_get_ldk_bindings_version() == NULL)
+ DEBUG_PRINT("LDK C Bindings version did not match the header we built against\\n");
+}
+"""
+
+ if sys.platform != "darwin":
+ self.c_file_pfx += """
+// Running a leak check across all the allocations and frees of the JDK is a mess,
+// so instead we implement our own naive leak checker here, relying on the -wrap
+// linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
+// and free'd in Rust or C across the generated bindings shared library.
+#include <threads.h>
+"""
+
+ self.c_file_pfx = self.c_file_pfx + "#include <execinfo.h>\n"
+ self.c_file_pfx = self.c_file_pfx + """
+#include <unistd.h>
+#include <pthread.h>
+static pthread_mutex_t allocation_mtx;
+
+void __attribute__((constructor)) init_mtx() {
+ DO_ASSERT(!pthread_mutex_init(&allocation_mtx, NULL));
+}
+
+#define BT_MAX 128
+typedef struct allocation {
+ struct allocation* next;
+ void* ptr;
+ const char* struct_name;
+ void* bt[BT_MAX];
+ int bt_len;
+ unsigned long alloc_len;
+} allocation;
+static allocation* allocation_ll = NULL;
+
+void* __real_malloc(size_t len);
+void* __real_calloc(size_t nmemb, size_t len);
+static void new_allocation(void* res, const char* struct_name, size_t len) {
+ allocation* new_alloc = __real_malloc(sizeof(allocation));
+ new_alloc->ptr = res;
+ new_alloc->struct_name = struct_name;
+ new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX);
+ new_alloc->alloc_len = len;
+ DO_ASSERT(!pthread_mutex_lock(&allocation_mtx));
+ new_alloc->next = allocation_ll;
+ allocation_ll = new_alloc;
+ DO_ASSERT(!pthread_mutex_unlock(&allocation_mtx));
+}
+static void* MALLOC(size_t len, const char* struct_name) {
+ void* res = __real_malloc(len);
+ new_allocation(res, struct_name, len);
+ return res;
+}
+void __real_free(void* ptr);
+static void alloc_freed(void* ptr) {
+ allocation* p = NULL;
+ DO_ASSERT(!pthread_mutex_lock(&allocation_mtx));
+ allocation* it = allocation_ll;
+ while (it->ptr != ptr) {
+ p = it; it = it->next;
+ if (it == NULL) {
+ DEBUG_PRINT("ERROR: Tried to free unknown pointer %p at:\\n", ptr);
+ void* bt[BT_MAX];
+ int bt_len = backtrace(bt, BT_MAX);
+ backtrace_symbols_fd(bt, bt_len, STDERR_FILENO);
+ DEBUG_PRINT("\\n\\n");
+ DO_ASSERT(!pthread_mutex_unlock(&allocation_mtx));
+ return; // addrsan should catch malloc-unknown and print more info than we have
+ }
+ }
+ if (p) { p->next = it->next; } else { allocation_ll = it->next; }
+ DO_ASSERT(!pthread_mutex_unlock(&allocation_mtx));
+ DO_ASSERT(it->ptr == ptr);
+ __real_free(it);
+}
+static void FREE(void* ptr) {
+ if ((uint64_t)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
+ alloc_freed(ptr);
+ __real_free(ptr);
+}
+
+void* __wrap_malloc(size_t len) {
+ void* res = __real_malloc(len);
+ new_allocation(res, "malloc call", len);
+ return res;
+}
+void* __wrap_calloc(size_t nmemb, size_t len) {
+ void* res = __real_calloc(nmemb, len);
+ new_allocation(res, "calloc call", len);
+ return res;
+}
+void __wrap_free(void* ptr) {
+ if (ptr == NULL) return;
+ alloc_freed(ptr);
+ __real_free(ptr);
+}
+
+static void CHECK_ACCESS(const void* ptr) {
+ DO_ASSERT(!pthread_mutex_lock(&allocation_mtx));
+ allocation* it = allocation_ll;
+ while (it->ptr != ptr) {
+ it = it->next;
+ if (it == NULL) {
+ DEBUG_PRINT("ERROR: Tried to access unknown pointer %p at:\\n", ptr);
+ void* bt[BT_MAX];
+ int bt_len = backtrace(bt, BT_MAX);
+ backtrace_symbols_fd(bt, bt_len, STDERR_FILENO);
+ DEBUG_PRINT("\\n\\n");
+ DO_ASSERT(!pthread_mutex_unlock(&allocation_mtx));
+ return; // addrsan should catch and print more info than we have
+ }
+ }
+ DO_ASSERT(!pthread_mutex_unlock(&allocation_mtx));
+}
+#define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
+ if (v.is_owned && v.inner != NULL) { \\
+ const void *p = __unmangle_inner_ptr(v.inner); \\
+ if (p != NULL) { \\
+ CHECK_ACCESS(p); \\
+ } \\
+ }
+
+void* __real_realloc(void* ptr, size_t newlen);
+void* __wrap_realloc(void* ptr, size_t len) {
+ if (ptr != NULL) alloc_freed(ptr);
+ void* res = __real_realloc(ptr, len);
+ new_allocation(res, "realloc call", len);
+ return res;
+}
+void __wrap_reallocarray(void* ptr, size_t new_sz) {
+ // Rust doesn't seem to use reallocarray currently
+ DO_ASSERT(false);
+}
+
+void __attribute__((destructor)) check_leaks() {
+ unsigned long alloc_count = 0;
+ unsigned long alloc_size = 0;
+ DEBUG_PRINT("The following LDK-allocated blocks still remain.\\n");
+ DEBUG_PRINT("Note that this is only accurate if System.gc(); System.runFinalization()\\n");
+ DEBUG_PRINT("was called prior to exit after all LDK objects were out of scope.\\n");
+ for (allocation* a = allocation_ll; a != NULL; a = a->next) {
+ DEBUG_PRINT("%s %p (%lu bytes) remains:\\n", a->struct_name, a->ptr, a->alloc_len);
+ backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO);
+ DEBUG_PRINT("\\n\\n");
+ alloc_count++;
+ alloc_size += a->alloc_len;
+ }
+ DEBUG_PRINT("%lu allocations remained for %lu bytes.\\n", alloc_count, alloc_size);
+ DEBUG_PRINT("Note that this is only accurate if System.gc(); System.runFinalization()\\n");
+ DEBUG_PRINT("was called prior to exit after all LDK objects were out of scope.\\n");
+}
+"""
+ self.c_file_pfx = self.c_file_pfx + """
+
+// We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
+_Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
+_Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
+_Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
+
+_Static_assert(sizeof(void*) <= 8, "Pointers must fit into 64 bits");
+
+typedef jlongArray int64_tArray;
+typedef jbyteArray int8_tArray;
+
+static inline jstring str_ref_to_java(JNIEnv *env, const char* chars, size_t len) {
+ // Sadly we need to create a temporary because Java can't accept a char* without a 0-terminator
+ char* conv_buf = MALLOC(len + 1, "str conv buf");
+ memcpy(conv_buf, chars, len);
+ conv_buf[len] = 0;
+ jstring ret = (*env)->NewStringUTF(env, conv_buf);
+ FREE(conv_buf);
+ return ret;
+}
+static inline LDKStr java_to_owned_str(JNIEnv *env, jstring str) {
+ uint64_t str_len = (*env)->GetStringUTFLength(env, str);
+ char* newchars = MALLOC(str_len + 1, "String chars");
+ const char* jchars = (*env)->GetStringUTFChars(env, str, NULL);
+ memcpy(newchars, jchars, str_len);
+ newchars[str_len] = 0;
+ (*env)->ReleaseStringUTFChars(env, str, jchars);
+ LDKStr res = {
+ .chars = newchars,
+ .len = str_len,
+ .chars_is_owned = true
+ };
+ return res;
+}
+
+const char* CS_LDK_get_ldk_c_bindings_version() {
+ return str_ref_to_java(check_get_ldk_bindings_version(), strlen(check_get_ldk_bindings_version()));
+}
+const char* CS_LDK_get_ldk_version() {
+ return str_ref_to_java(check_get_ldk_version(), strlen(check_get_ldk_version()));
+}
+#include "version.c"
+"""
+ self.c_version_file = """const char* CS_LDK_get_lib_version_string() {
+ return "<git_version_ldk_garbagecollected>";
+}"""
+
+ self.hu_struct_file_prefix = """using org.ldk.impl;
+using org.ldk.enums;
+using org.ldk.util;
+using System;
+
+namespace org { namespace ldk { namespace structs {
+
+"""
+ self.hu_struct_file_suffix = "} } }\n"
+ self.c_fn_args_pfx = ""
+ self.c_fn_ty_pfx = ""
+ self.file_ext = ".cs"
+ self.ptr_c_ty = "int64_t"
+ self.ptr_native_ty = "long"
+ self.u128_native_ty = "UInt128"
+ self.usize_c_ty = "int64_t"
+ self.usize_native_ty = "long"
+ self.native_zero_ptr = "0"
+ self.result_c_ty = "jclass"
+ self.ptr_arr = "jobjectArray"
+ self.is_arr_some_check = ("", " != NULL")
+ self.get_native_arr_len_call = ("(*env)->GetArrayLength(env, ", ")")
+
+ self.bindings_footer_wip = "\tstatic bindings() {\n"
+ def bindings_footer(self):
+ return self.bindings_footer_wip + "\t}\n}\n} } }\n"
+
+ def native_meth_decl(self, meth_name, ret_ty_str):
+ return "\t[DllImport (\"ldkcsharp\", EntryPoint=\"CS_LDK_" + meth_name + "\")] public static extern " + ret_ty_str + " " + meth_name
+
+ def c_fn_name_define_pfx(self, fn_name, have_args):
+ return " CS_LDK_" + fn_name + "("
+
+ def construct_jenv(self):
+ res = "JNIEnv *env;\n"
+ res += "jint get_jenv_res = (*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_6);\n"
+ res += "if (get_jenv_res == JNI_EDETACHED) {\n"
+ res += "\tDO_ASSERT((*j_calls->vm)->AttachCurrentThread(j_calls->vm, (void**)&env, NULL) == JNI_OK);\n"
+ res += "} else {\n"
+ res += "\tDO_ASSERT(get_jenv_res == JNI_OK);\n"
+ res += "}\n"
+ return res
+ def deconstruct_jenv(self):
+ res = "if (get_jenv_res == JNI_EDETACHED) {\n"
+ res += "\tDO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);\n"
+ res += "}\n"
+ return res
+
+ def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
+ if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
+ return "(*env)->ReleasePrimitiveArrayCritical(env, " + arr_var + ", " + arr_ptr_var + ", 0)"
+ return None
+ def create_native_arr_call(self, arr_len, ty_info):
+ if ty_info.c_ty == "int8_tArray":
+ return "(*env)->NewByteArray(env, " + arr_len + ")"
+ elif ty_info.subty.c_ty.endswith("Array"):
+ clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_")
+ self.c_array_class_caches.add(clz_var)
+ return "(*env)->NewObjectArray(env, " + arr_len + ", " + clz_var + "_clz, NULL);\n"
+ else:
+ return "(*env)->New" + ty_info.java_ty.strip("[]").title() + "Array(env, " + arr_len + ")"
+ def set_native_arr_contents(self, arr_name, arr_len, ty_info):
+ if ty_info.c_ty == "int8_tArray":
+ return ("(*env)->SetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", ", ")")
+ else:
+ assert False
+ def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
+ if ty_info.c_ty == "int8_tArray":
+ if copy:
+ return "(*env)->GetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", " + dest_name + ")"
+ else:
+ return "(*env)->GetByteArrayElements (env, " + arr_name + ", NULL)"
+ elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"):
+ return "(*env)->Get" + ty_info.subty.java_ty.title() + "ArrayElements (env, " + arr_name + ", NULL)"
+ else:
+ return None
+ def get_native_arr_elem(self, arr_name, idxc, ty_info):
+ if self.get_native_arr_contents(arr_name, "", "", ty_info, False) is None:
+ return "(*env)->GetObjectArrayElement(env, " + arr_name + ", " + idxc + ")"
+ else:
+ assert False # Only called if above is None
+ def get_native_arr_ptr_call(self, ty_info):
+ if ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array"):
+ return None
+ return ("(*env)->GetPrimitiveArrayCritical(env, ", ", NULL)")
+ def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
+ if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
+ return None
+ return "(*env)->SetObjectArrayElement(env, " + arr_name + ", " + idxc + ", " + entry_access + ")"
+ def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
+ if ty_info.c_ty == "int8_tArray":
+ return "(*env)->ReleaseByteArrayElements(env, " + arr_name + ", (int8_t*)" + dest_name + ", 0);"
+ else:
+ return "(*env)->Release" + ty_info.java_ty.strip("[]").title() + "ArrayElements(env, " + arr_name + ", " + dest_name + ", 0)"
+
+ def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
+ if elem_ty.java_hu_ty == "UInt5":
+ return arr_name + " != null ? InternalUtils.convUInt5Array(" + arr_name + ") : null"
+ elif elem_ty.java_hu_ty == "WitnessVersion":
+ return arr_name + " != null ? InternalUtils.convWitnessVersionArray(" + arr_name + ") : null"
+ else:
+ return arr_name + " != null ? InternalUtils.mapArray(" + arr_name + ", " + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
+
+ def str_ref_to_native_call(self, var_name, str_len):
+ return "str_ref_to_java(env, " + var_name + ", " + str_len + ")"
+ def str_ref_to_c_call(self, var_name):
+ return "java_to_owned_str(env, " + var_name + ")"
+ def str_to_hu_conv(self, var_name):
+ return None
+ def str_from_hu_conv(self, var_name):
+ return None
+
+ def init_str(self):
+ return ""
+
+ def var_decl_statement(self, ty_string, var_name, statement):
+ return ty_string + " " + var_name + " = " + statement
+
+ def get_java_arr_len(self, arr_name):
+ return arr_name + ".Length"
+ def get_java_arr_elem(self, elem_ty, arr_name, idx):
+ return arr_name + "[" + idx + "]"
+ def constr_hu_array(self, ty_info, arr_len):
+ base_ty = ty_info.subty.java_hu_ty.split("[")[0].split("<")[0]
+ conv = "new " + base_ty + "[" + arr_len + "]"
+ if "[" in ty_info.subty.java_hu_ty.split("<")[0]:
+ # Do a bit of a dance to move any excess [] to the end
+ conv += "[" + ty_info.subty.java_hu_ty.split("<")[0].split("[")[1]
+ return conv
+ def cleanup_converted_native_array(self, ty_info, arr_name):
+ return None
+
+ def primitive_arr_from_hu(self, arr_ty, fixed_len, arr_name):
+ mapped_ty = arr_ty.subty
+ if arr_ty.rust_obj == "LDKU128":
+ return ("" + arr_name + ".getLEBytes()", "")
+ if fixed_len is not None:
+ return ("InternalUtils.check_arr_len(" + arr_name + ", " + fixed_len + ")", "")
+ return None
+ def primitive_arr_to_hu(self, arr_ty, fixed_len, arr_name, conv_name):
+ if arr_ty.rust_obj == "LDKU128":
+ return "org.ldk.util.UInt128 " + conv_name + " = new org.ldk.util.UInt128(" + arr_name + ");"
+ return None
+
+ def java_arr_ty_str(self, elem_ty_str):
+ return elem_ty_str + "[]"
+
+ def for_n_in_range(self, n, minimum, maximum):
+ return "for (int " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
+ def for_n_in_arr(self, n, arr_name, arr_elem_ty):
+ return ("foreach (" + arr_elem_ty.java_hu_ty + " " + n + " in " + arr_name + ") { ", " }")
+
+ def get_ptr(self, var):
+ return var + ".ptr"
+ def set_null_skip_free(self, var):
+ return var + ".ptr" + " = 0;"
+
+ def add_ref(self, holder, referent):
+ return "if (" + holder + " != null) { " + holder + ".ptrs_to.AddLast(" + referent + "); }"
+
+ def fully_qualified_hu_ty_path(self, ty):
+ if ty.java_fn_ty_arg.startswith("L") and ty.java_fn_ty_arg.endswith(";"):
+ return ty.java_hu_ty
+ if ty.java_hu_ty == "UnqualifiedError" or ty.java_hu_ty == "UInt128" or ty.java_hu_ty == "UInt5" or ty.java_hu_ty == "WitnessVersion":
+ return "org.ldk.util." + ty.java_hu_ty
+ if not ty.is_native_primitive and ty.rust_obj is not None and not "[]" in ty.java_hu_ty:
+ return "org.ldk.structs." + ty.java_hu_ty
+ return ty.java_hu_ty
+
+ def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
+ out_java_enum = "namespace org { namespace ldk { namespace enums {"
+ out_java = ""
+ out_c = ""
+
+ out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_cs(int32_t ord) {\n"
+ out_c += "\tswitch (ord) {\n"
+
+ if enum_doc_comment is not None:
+ out_java_enum += "/**\n * " + enum_doc_comment.replace("\n", "\n * ") + "\n */\n"
+ out_java_enum += "public enum " + struct_name + " {\n"
+ ord_v = 0
+ for var, var_docs in variants:
+ if var_docs is not None:
+ out_java_enum += "\t/**\n\t * " + var_docs.replace("\n", "\n\t * ") + "\n\t */\n"
+ out_java_enum += "\t" + var + ",\n"
+ out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
+ ord_v = ord_v + 1
+ out_java_enum += "}"
+ out_c += "\t\tdefault: abort();\n"
+ out_c += "\t}\n"
+ out_c += "}\n"
+
+ out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_cs(LDK" + struct_name + " val) {\n"
+ out_c = out_c + "\tswitch (val) {\n"
+ ord_v = 0
+ for var, _ in variants:
+ out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
+ ord_v = ord_v + 1
+ out_c = out_c + "\t\tdefault: abort();\n"
+ out_c = out_c + "\t}\n"
+ out_c = out_c + "}\n"
+
+ return (out_c, out_java_enum + "} } }\n", out_java)
+
+ def c_unitary_enum_to_native_call(self, ty_info):
+ return (ty_info.rust_obj + "_to_cs(", ")")
+ def native_unitary_enum_to_c_call(self, ty_info):
+ return (ty_info.rust_obj + "_from_cs(", ")")
+
+ def c_complex_enum_pfx(self, struct_name, variants, init_meth_jty_strs):
+ out_c = ""
+ for var in variants:
+ out_c = out_c + "static jclass " + struct_name + "_" + var + "_class = NULL;\n"
+ out_c = out_c + "static jmethodID " + struct_name + "_" + var + "_meth = NULL;\n"
+ out_c += "void" + self.c_fn_name_define_pfx(struct_name.replace("_", "_1") + "_init", True) + self.c_fn_args_pfx + ") {\n"
+ for var_name in variants:
+ out_c += "\t" + struct_name + "_" + var_name + "_class =\n"
+ out_c += "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"org/ldk/impl/bindings$" + struct_name + "$" + var_name + "\"));\n"
+ out_c += "\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n"
+ out_c += "\t" + struct_name + "_" + var_name + "_meth = (*env)->GetMethodID(env, " + struct_name + "_" + var_name + "_class, \"<init>\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n"
+ out_c += "\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n"
+ out_c = out_c + "}\n"
+ return out_c
+
+ def c_complex_enum_pass_ty(self, struct_name):
+ return "jobject"
+
+ def c_constr_native_complex_enum(self, struct_name, variant, c_params):
+ ret = "(*env)->NewObject(env, " + struct_name + "_" + variant + "_class, " + struct_name + "_" + variant + "_meth"
+ for param in c_params:
+ ret = ret + ", " + param
+ return ret + ")"
+
+ def native_c_map_trait(self, struct_name, field_vars, flattened_field_vars, field_fns, trait_doc_comment):
+ out_java_trait = ""
+ out_java = ""
+
+ # First generate most of the Java code, note that we need information about java method argument strings for C
+ out_java_trait += self.hu_struct_file_prefix
+ if trait_doc_comment is not None:
+ out_java_trait += "/**\n * " + trait_doc_comment.replace("\n", "\n * ") + "\n */\n"
+ out_java_trait = out_java_trait + "public class " + struct_name.replace("LDK","") + " : CommonBase {\n"
+ out_java_trait = out_java_trait + "\tinternal readonly bindings." + struct_name + " bindings_instance;\n"
+ out_java_trait = out_java_trait + "\tinternal " + struct_name.replace("LDK", "") + "(object _dummy, long ptr) : base(ptr) { bindings_instance = null; }\n"
+ out_java_trait = out_java_trait + "\tprivate " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ out_java_trait += ", " + var.java_hu_ty + " " + var.arg_name
+ else:
+ out_java_trait += ", bindings." + var[0] + " " + var[1]
+ out_java_trait += ") : base(bindings." + struct_name + "_new(arg"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ if var.from_hu_conv is not None:
+ out_java_trait = out_java_trait + ", " + var.from_hu_conv[0]
+ else:
+ out_java_trait = out_java_trait + ", " + var.arg_name
+ else:
+ out_java_trait = out_java_trait + ", " + var[1]
+ out_java_trait = out_java_trait + ")) {\n"
+ out_java_trait = out_java_trait + "\t\tthis.ptrs_to.AddLast(arg);\n"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ if var.from_hu_conv is not None and var.from_hu_conv[1] != "":
+ out_java_trait = out_java_trait + "\t\t" + var.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n"
+ else:
+ out_java_trait = out_java_trait + "\t\tthis.ptrs_to.AddLast(" + var[1] + ");\n"
+ out_java_trait = out_java_trait + "\t\tthis.bindings_instance = arg;\n"
+ out_java_trait = out_java_trait + "\t}\n"
+ out_java_trait = out_java_trait + "\t~" + struct_name.replace("LDK","") + "() {\n"
+ out_java_trait = out_java_trait + "\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n"
+ out_java_trait = out_java_trait + "\t}\n\n"
+
+ java_trait_wrapper = "\tprivate class " + struct_name + "Holder { internal " + struct_name.replace("LDK", "") + " held; }\n"
+ java_trait_wrapper += "\tprivate class " + struct_name + "Impl : bindings." + struct_name + " {\n"
+ java_trait_wrapper += "\t\tinternal " + struct_name + "Impl(" + struct_name.replace("LDK", "") + "Interface arg, " + struct_name + "Holder impl_holder) { this.arg = arg; this.impl_holder = impl_holder; }\n"
+ java_trait_wrapper += "\t\tprivate " + struct_name.replace("LDK", "") + "Interface arg;\n"
+ java_trait_wrapper += "\t\tprivate " + struct_name + "Holder impl_holder;\n"
+ java_trait_constr = "\tpublic static " + struct_name.replace("LDK", "") + " new_impl(" + struct_name.replace("LDK", "") + "Interface arg"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ java_trait_constr += ", " + var.java_hu_ty + " " + var.arg_name
+ else:
+ # Ideally we'd be able to take any instance of the interface, but our C code can only represent
+ # Java-implemented version, so we require users pass a Java implementation here :/
+ java_trait_constr += ", " + var[0].replace("LDK", "") + "." + var[0].replace("LDK", "") + "Interface " + var[1] + "_impl"
+ java_trait_constr = java_trait_constr + ") {\n\t\t" + struct_name + "Holder impl_holder = new " + struct_name + "Holder();\n"
+ java_trait_constr = java_trait_constr + "\t\timpl_holder.held = new " + struct_name.replace("LDK", "") + "(new " + struct_name + "Impl(arg, impl_holder)"
+ out_java_trait += "\tpublic interface " + struct_name.replace("LDK", "") + "Interface {\n"
+ out_java += "\tpublic interface " + struct_name + " {\n"
+ java_meths = []
+ for fn_line in field_fns:
+ java_meth_descr = "("
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
+ fn_name = fn_line.fn_name
+ if fn_name == "lock": # reserved symbol
+ fn_name = "do_lock"
+ out_java += "\t\t" + fn_line.ret_ty_info.java_ty + " " + fn_name + "("
+ java_trait_wrapper += "\t\tpublic " + fn_line.ret_ty_info.java_ty + " " + fn_name + "("
+ out_java_trait += "\t\t/**\n\t\t * " + fn_line.docs.replace("\n", "\n\t\t * ") + "\n\t\t */\n"
+ out_java_trait += "\t\t" + fn_line.ret_ty_info.java_hu_ty + " " + fn_name + "("
+
+ for idx, arg_conv_info in enumerate(fn_line.args_ty):
+ if idx >= 1:
+ out_java += ", "
+ java_trait_wrapper += ", "
+ out_java_trait += ", "
+ out_java += arg_conv_info.java_ty + " _" + arg_conv_info.arg_name
+ out_java_trait += arg_conv_info.java_hu_ty + " _" + arg_conv_info.arg_name
+ java_trait_wrapper += arg_conv_info.java_ty + " _" + arg_conv_info.arg_name
+ java_meth_descr = java_meth_descr + arg_conv_info.java_fn_ty_arg
+ java_meth_descr = java_meth_descr + ")" + fn_line.ret_ty_info.java_fn_ty_arg
+ java_meths.append((fn_line.fn_name, java_meth_descr))
+
+ out_java += ");\n"
+ out_java_trait += ");\n"
+ java_trait_wrapper += ") {\n"
+
+ for arg_info in fn_line.args_ty:
+ if arg_info.to_hu_conv is not None:
+ java_trait_wrapper += "\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t").replace(arg_info.arg_name, "_" + arg_info.arg_name) + "\n"
+
+ if fn_line.ret_ty_info.java_ty != "void":
+ java_trait_wrapper += "\t\t\t" + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_name + "("
+ else:
+ java_trait_wrapper += "\t\t\targ." + fn_name + "("
+
+ for idx, arg_info in enumerate(fn_line.args_ty):
+ if idx != 0:
+ java_trait_wrapper += ", "
+ if arg_info.to_hu_conv_name is not None:
+ java_trait_wrapper += arg_info.to_hu_conv_name.replace(arg_info.arg_name, "_" + arg_info.arg_name)
+ else:
+ java_trait_wrapper += "_" + arg_info.arg_name
+
+ java_trait_wrapper += ");\n"
+ java_trait_wrapper += "\t\t\t\tGC.KeepAlive(arg);\n"
+ if fn_line.ret_ty_info.java_ty != "void":
+ if fn_line.ret_ty_info.from_hu_conv is not None:
+ java_trait_wrapper += "\t\t\t" + fn_line.ret_ty_info.java_ty + " result = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n"
+ if fn_line.ret_ty_info.from_hu_conv[1] != "":
+ java_trait_wrapper += "\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
+ java_trait_wrapper += "\t\t\treturn result;\n"
+ else:
+ java_trait_wrapper += "\t\t\treturn ret;\n"
+ java_trait_wrapper += "\t\t}\n"
+ java_trait_wrapper += "\t}"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ java_trait_constr = java_trait_constr + ", " + var.arg_name
+ else:
+ java_trait_constr += ", " + var[1] + ".new_impl(" + var[1] + "_impl"
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ java_trait_constr += ", " + suparg.arg_name
+ else:
+ java_trait_constr += ", " + suparg[1]
+ java_trait_constr += ").bindings_instance"
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ java_trait_constr += ", " + suparg.arg_name
+ else:
+ java_trait_constr += ", " + suparg[1]
+ out_java_trait += "\t}\n" + java_trait_wrapper + "\n"
+ out_java_trait += java_trait_constr + ");\n\t\treturn impl_holder.held;\n\t}\n"
+
+ out_java += "\t}\n"
+
+ out_java += self.native_meth_decl(struct_name + "_new", "long") + "(" + struct_name + " impl"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ out_java += ", " + var.java_ty + " " + var.arg_name
+ else:
+ out_java += ", " + var[0] + " " + var[1]
+ out_java += ");\n"
+
+ # Now that we've written out our java code (and created java_meths), generate C
+ out_c = "typedef struct " + struct_name + "_JCalls {\n"
+ out_c = out_c + "\tatomic_size_t refcnt;\n"
+ out_c = out_c + "\tJavaVM *vm;\n"
+ out_c = out_c + "\tjweak o;\n"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ # We're a regular ol' field
+ pass
+ else:
+ # We're a supertrait
+ out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
+ for fn in field_fns:
+ if fn.fn_name != "free" and fn.fn_name != "cloned":
+ out_c = out_c + "\tjmethodID " + fn.fn_name + "_meth;\n"
+ out_c = out_c + "} " + struct_name + "_JCalls;\n"
+
+ for fn_line in field_fns:
+ if fn_line.fn_name == "free":
+ out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
+ out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
+ out_c += "\t\t" + self.construct_jenv().replace("\n", "\n\t\t").strip() + "\n"
+ out_c = out_c + "\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n"
+ out_c += "\t\t" + self.deconstruct_jenv().replace("\n", "\n\t\t").strip() + "\n"
+ out_c = out_c + "\t\tFREE(j_calls);\n"
+ out_c = out_c + "\t}\n}\n"
+
+ for idx, fn_line in enumerate(field_fns):
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
+ assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
+ out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
+ if fn_line.self_is_const:
+ out_c = out_c + "const void* this_arg"
+ else:
+ out_c = out_c + "void* this_arg"
+
+ for idx, arg in enumerate(fn_line.args_ty):
+ out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
+
+ out_c = out_c + ") {\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
+ out_c += "\t" + self.construct_jenv().replace("\n", "\n\t").strip() + "\n"
+
+ for arg_info in fn_line.args_ty:
+ if arg_info.ret_conv is not None:
+ out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
+ out_c = out_c + arg_info.arg_name
+ out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
+
+ out_c = out_c + "\tjobject obj = (*env)->NewLocalRef(env, j_calls->o);\n\tCHECK(obj != NULL);\n"
+ if fn_line.ret_ty_info.c_ty.endswith("Array"):
+ out_c = out_c + "\t" + fn_line.ret_ty_info.c_ty + " ret = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
+ elif fn_line.ret_ty_info.c_ty == "void":
+ out_c += "\t(*env)->CallVoidMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
+ elif fn_line.ret_ty_info.java_hu_ty == "string" or "org/ldk/enums" in fn_line.ret_ty_info.java_fn_ty_arg:
+ # Manually write out string methods as they're just an Object
+ out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
+ elif not fn_line.ret_ty_info.passed_as_ptr:
+ out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (*env)->Call" + fn_line.ret_ty_info.java_ty.title() + "Method(env, obj, j_calls->" + fn_line.fn_name + "_meth"
+ else:
+ out_c = out_c + "\tuint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
+
+ for idx, arg_info in enumerate(fn_line.args_ty):
+ if arg_info.ret_conv is not None:
+ out_c = out_c + ", " + arg_info.ret_conv_name
+ else:
+ out_c = out_c + ", " + arg_info.arg_name
+ out_c = out_c + ");\n"
+
+ out_c += "\tif (UNLIKELY((*env)->ExceptionCheck(env))) {\n"
+ out_c += "\t\t(*env)->ExceptionDescribe(env);\n"
+ out_c += "\t\t(*env)->FatalError(env, \"A call to " + fn_line.fn_name + " in " + struct_name + " from rust threw an exception.\");\n"
+ out_c += "\t}\n"
+
+ if fn_line.ret_ty_info.arg_conv is not None:
+ out_c += "\t" + fn_line.ret_ty_info.arg_conv.replace("\n", "\n\t") + "\n"
+ out_c += "\t" + self.deconstruct_jenv().replace("\n", "\n\t").strip() + "\n"
+ out_c += "\treturn " + fn_line.ret_ty_info.arg_conv_name + ";\n"
+ else:
+ out_c += "\t" + self.deconstruct_jenv().replace("\n", "\n\t").strip() + "\n"
+ if not fn_line.ret_ty_info.passed_as_ptr and fn_line.ret_ty_info.c_ty != "void":
+ out_c += "\treturn ret;\n"
+
+ out_c = out_c + "}\n"
+
+ # If we can, write out a clone function whether we need one or not, as we use them in moving to rust
+ can_clone_with_ptr = True
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ can_clone_with_ptr = False
+ if can_clone_with_ptr:
+ out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
+ out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
+ for var in field_vars:
+ if not isinstance(var, ConvInfo):
+ out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
+ out_c = out_c + "}\n"
+
+ out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (" + self.c_fn_args_pfx + ", jobject o"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.c_ty + " " + var.arg_name
+ else:
+ out_c = out_c + ", jobject " + var[1]
+ out_c = out_c + ") {\n"
+
+ out_c = out_c + "\tjclass c = (*env)->GetObjectClass(env, o);\n"
+ out_c = out_c + "\tCHECK(c != NULL);\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
+ out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
+ out_c = out_c + "\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n"
+ out_c = out_c + "\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n"
+
+ for (fn_name, java_meth_descr) in java_meths:
+ if fn_name != "free" and fn_name != "cloned":
+ out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
+ out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
+
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo) and var.arg_conv is not None:
+ out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
+ out_c = out_c + "\n\t" + struct_name + " ret = {\n"
+ out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
+ for fn_line in field_fns:
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
+ out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
+ elif fn_line.fn_name == "free":
+ out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
+ else:
+ out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
+ for var in field_vars:
+ if isinstance(var, ConvInfo):
+ if var.arg_conv_name is not None:
+ out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
+ out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
+ else:
+ out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
+ out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
+ else:
+ out_c += "\t\t." + var[1] + " = " + var[0] + "_init(env, clz, " + var[1]
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ out_c = out_c + ", " + suparg.arg_name
+ else:
+ out_c = out_c + ", " + suparg[1]
+ out_c += "),\n"
+ out_c = out_c + "\t};\n"
+ for var in flattened_field_vars:
+ if not isinstance(var, ConvInfo):
+ out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
+ out_c = out_c + "\treturn ret;\n"
+ out_c = out_c + "}\n"
+
+ out_c += "int64_t " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "jobject o"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.c_ty + " " + var.arg_name
+ else:
+ out_c = out_c + ", jobject " + var[1]
+ out_c = out_c + ") {\n"
+ out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
+ out_c = out_c + "\t*res_ptr = " + struct_name + "_init(env, clz, o"
+ for var in flattened_field_vars:
+ if isinstance(var, ConvInfo):
+ out_c = out_c + ", " + var.arg_name
+ else:
+ out_c = out_c + ", " + var[1]
+ out_c = out_c + ");\n"
+ out_c = out_c + "\treturn tag_ptr(res_ptr, true);\n"
+ out_c = out_c + "}\n"
+
+ for var in flattened_field_vars:
+ if not isinstance(var, ConvInfo):
+ out_java_trait += "\n\t/**\n"
+ out_java_trait += "\t * Gets the underlying " + var[1] + ".\n"
+ out_java_trait += "\t */\n"
+ underscore_name = ''.join('_' + c.lower() if c.isupper() else c for c in var[1]).strip('_')
+ out_java_trait += "\tpublic " + var[1] + " get_" + underscore_name + "() {\n"
+ out_java_trait += "\t\t" + var[1] + " res = new " + var[1] + "(null, bindings." + struct_name + "_get_" + var[1] + "(this.ptr));\n"
+ out_java_trait += "\t\tthis.ptrs_to.AddLast(res);\n"
+ out_java_trait += "\t\treturn res;\n"
+ out_java_trait += "\t}\n"
+ out_java_trait += "\n"
+
+ out_java += self.native_meth_decl(struct_name + "_get_" + var[1], "long") + "(long arg);\n"
+
+ out_c += "int64_t " + self.c_fn_name_define_pfx(struct_name + "_get_" + var[1], True) + "int64_t arg) {\n"
+ out_c += "\t" + struct_name + " *inp = (" + struct_name + " *)untag_ptr(arg);\n"
+ out_c += "\treturn tag_ptr(&inp->" + var[1] + ", false);\n"
+ out_c += "}\n"
+
+ return (out_java, out_java_trait, out_c)
+
+ def trait_struct_inc_refcnt(self, ty_info):
+ base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
+ base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
+ base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_cloned(&" + ty_info.var_name + "_conv);\n}"
+ return base_conv
+
+ def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
+ bindings_type = struct_name.replace("LDK", "")
+ java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
+
+ out_java_enum = ""
+ out_java = ""
+ out_c = ""
+
+ out_java_enum += (self.hu_struct_file_prefix)
+
+ java_hu_class = "/**\n * " + enum_doc_comment.replace("\n", "\n * ") + "\n */\n"
+ java_hu_class += "public class " + java_hu_type + " : CommonBase {\n"
+ java_hu_class += f"\tprotected {java_hu_type}(object _dummy, long ptr) : base(ptr)" + " { }\n"
+ java_hu_class += "\t~" + java_hu_type + "() {\n"
+ java_hu_class += "\t\tif (ptr != 0) { bindings." + bindings_type + "_free(ptr); }\n"
+ java_hu_class += "\t}\n\n"
+ java_hu_class += f"\tinternal static {java_hu_type} constr_from_ptr(long ptr) {{\n"
+ java_hu_class += f"\t\tlong raw_ty = bindings." + struct_name + "_ty_from_ptr(ptr);\n"
+ out_c += self.c_fn_ty_pfx + "uint32_t" + self.c_fn_name_define_pfx(struct_name + "_ty_from_ptr", True) + self.ptr_c_ty + " ptr) {\n"
+ out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
+ out_c += "\tswitch(obj->tag) {\n"
+ java_hu_class += "\t\tswitch (raw_ty) {\n"
+ java_hu_subclasses = ""
+
+ var_idx = 0
+ for var in variant_list:
+ java_hu_subclasses += "\t/** A " + java_hu_type + " of type " + var.var_name + " */\n"
+ java_hu_subclasses += "\tpublic class " + java_hu_type + "_" + var.var_name + " : " + java_hu_type + " {\n"
+ java_hu_class += f"\t\t\tcase {var_idx}: "
+ java_hu_class += "return new " + java_hu_type + "_" + var.var_name + "(ptr);\n"
+ out_c += f"\t\tcase {struct_name}_{var.var_name}: return {var_idx};\n"
+ hu_conv_body = ""
+ for idx, (field_ty, field_docs) in enumerate(var.fields):
+ if field_docs is not None:
+ java_hu_subclasses += "\t\t/**\n\t\t * " + field_docs.replace("\n", "\n\t\t * ") + "\n\t\t */\n"
+ java_hu_subclasses += f"\t\tpublic {field_ty.java_hu_ty} {field_ty.arg_name};\n"
+ if field_ty.to_hu_conv is not None:
+ hu_conv_body += f"\t\t\t{field_ty.java_ty} {field_ty.arg_name} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
+ hu_conv_body += f"\t\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
+ hu_conv_body += f"\t\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
+ else:
+ hu_conv_body += f"\t\t\tthis.{field_ty.arg_name} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
+ java_hu_subclasses += "\t\tinternal " + java_hu_type + "_" + var.var_name + "(long ptr) : base(null, ptr) {\n"
+ java_hu_subclasses += hu_conv_body
+ java_hu_subclasses += "\t\t}\n\t}\n"
+ var_idx += 1
+ java_hu_class += "\t\t\tdefault:\n\t\t\t\tthrow new ArgumentException(\"Impossible enum variant\");\n\t\t}\n\t}\n\n"
+ out_java += self.native_meth_decl(struct_name + "_ty_from_ptr", "long") + "(long ptr);\n"
+ out_c += ("\t\tdefault: abort();\n")
+ out_c += ("\t}\n}\n")
+
+ for var in variant_list:
+ for idx, (field_map, _) in enumerate(var.fields):
+ fn_name = f"{struct_name}_{var.var_name}_get_{field_map.arg_name}"
+ out_c += self.c_fn_ty_pfx + field_map.c_ty + self.c_fn_name_define_pfx(fn_name, True) + self.ptr_c_ty + " ptr) {\n"
+ out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
+ out_c += f"\tassert(obj->tag == {struct_name}_{var.var_name});\n"
+ if field_map.ret_conv is not None:
+ out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
+ if var.tuple_variant:
+ out_c += "obj->" + camel_to_snake(var.var_name)
+ else:
+ out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
+ out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
+ out_c += "\treturn " + field_map.ret_conv_name + ";\n"
+ else:
+ if var.tuple_variant:
+ out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + ";\n"
+ else:
+ out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name + ";\n"
+ out_c += "}\n"
+ out_java += self.native_meth_decl(fn_name, field_map.java_ty) + "(long ptr);\n"
+ out_java_enum += java_hu_class
+ out_java_enum += java_hu_subclasses
+ return (out_java, out_java_enum, out_c)
+
+ def map_opaque_struct(self, struct_name, struct_doc_comment):
+ out_opaque_struct_human = ""
+ out_opaque_struct_human += self.hu_struct_file_prefix
+ out_opaque_struct_human += "\n/**\n * " + struct_doc_comment.replace("\n", "\n * ") + "\n */\n"
+ hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
+ out_opaque_struct_human += ("public class " + hu_name + " : CommonBase")
+ if struct_name.startswith("LDKLocked") or struct_name.startswith("LDKReadOnly"):
+ out_opaque_struct_human += (", IDisposable")
+ out_opaque_struct_human += (" {\n")
+ out_opaque_struct_human += ("\tinternal " + hu_name + "(object _dummy, long ptr) : base(ptr) { }\n")
+ if struct_name.startswith("LDKLocked") or struct_name.startswith("LDKReadOnly"):
+ out_opaque_struct_human += ("\tpublic void Dispose() {\n")
+ else:
+ out_opaque_struct_human += ("\t~" + hu_name + "() {\n")
+ out_opaque_struct_human += ("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n")
+ out_opaque_struct_human += ("\t}\n\n")
+ return out_opaque_struct_human
+
+ def map_tuple(self, struct_name):
+ return self.map_opaque_struct(struct_name, "A Tuple")
+
+ def map_result(self, struct_name, res_map, err_map):
+ human_ty = struct_name.replace("LDKCResult", "Result")
+ java_hu_struct = ""
+ java_hu_struct += self.hu_struct_file_prefix
+ java_hu_struct += "public class " + human_ty + " : CommonBase {\n"
+ java_hu_struct += "\t" + human_ty + "(object _dummy, long ptr) : base(ptr) { }\n"
+ java_hu_struct += "\t~" + human_ty + "() {\n"
+ java_hu_struct += "\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n"
+ java_hu_struct += "\t}\n\n"
+ java_hu_struct += "\tinternal static " + human_ty + " constr_from_ptr(long ptr) {\n"
+ java_hu_struct += "\t\tif (bindings." + struct_name.replace("LDK", "") + "_is_ok(ptr)) {\n"
+ java_hu_struct += "\t\t\treturn new " + human_ty + "_OK(null, ptr);\n"
+ java_hu_struct += "\t\t} else {\n"
+ java_hu_struct += "\t\t\treturn new " + human_ty + "_Err(null, ptr);\n"
+ java_hu_struct += "\t\t}\n"
+ java_hu_struct += "\t}\n"
+
+ java_hu_struct += "\tpublic class " + human_ty + "_OK : " + human_ty + " {\n"
+
+ if res_map.java_hu_ty != "void":
+ java_hu_struct += "\t\tpublic readonly " + res_map.java_hu_ty + " res;\n"
+ java_hu_struct += "\t\tinternal " + human_ty + "_OK(object _dummy, long ptr) : base(_dummy, ptr) {\n"
+ if res_map.java_hu_ty == "void":
+ pass
+ elif res_map.to_hu_conv is not None:
+ java_hu_struct += "\t\t\t" + res_map.java_ty + " res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
+ java_hu_struct += "\t\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t\t")
+ java_hu_struct += "\n\t\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
+ else:
+ java_hu_struct += "\t\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
+ java_hu_struct += "\t\t}\n"
+ java_hu_struct += "\t}\n\n"
+
+ java_hu_struct += "\tpublic class " + human_ty + "_Err : " + human_ty + " {\n"
+ if err_map.java_hu_ty != "void":
+ java_hu_struct += "\t\tpublic readonly " + err_map.java_hu_ty + " err;\n"
+ java_hu_struct += "\t\tinternal " + human_ty + "_Err(object _dummy, long ptr) : base(_dummy, ptr) {\n"
+ if err_map.java_hu_ty == "void":
+ pass
+ elif err_map.to_hu_conv is not None:
+ java_hu_struct += "\t\t\t" + err_map.java_ty + " err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
+ java_hu_struct += "\t\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t\t")
+ java_hu_struct += "\n\t\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
+ else:
+ java_hu_struct += "\t\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
+ java_hu_struct += "\t\t}\n"
+
+ java_hu_struct += "\t}\n\n"
+ return java_hu_struct
+
+ def map_function(self, argument_types, c_call_string, method_name, meth_n, return_type_info, struct_meth, default_constructor_args, takes_self, takes_self_as_ref, args_known, type_mapping_generator, doc_comment):
+ arg_name_repl = lambda s, arg_name: s.replace(arg_name, "_" + arg_name) if arg_name == "lock" or arg_name == "event" or arg_name == "params" else s
+ out_java = ""
+ out_c = ""
+ out_java_struct = None
+
+ out_java += self.native_meth_decl(method_name, return_type_info.java_ty) + "("
+ out_c += (return_type_info.c_ty)
+ if return_type_info.ret_conv is not None:
+ ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
+ have_args = len(argument_types) > 1 or (len(argument_types) > 0 and argument_types[0].c_ty != "void")
+ out_c += (" " + self.c_fn_name_define_pfx(method_name, have_args))
+
+ for idx, arg_conv_info in enumerate(argument_types):
+ if idx != 0:
+ out_java += (", ")
+ out_c += (", ")
+ if arg_conv_info.c_ty != "void":
+ out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
+ out_java += (arg_conv_info.java_ty + " _" + arg_conv_info.arg_name) # Add a _ to avoid using reserved words
+
+ out_java_struct = ""
+ extra_java_struct_out = ""
+ if not args_known:
+ out_java_struct += ("\t// Skipped " + method_name + "\n")
+ else:
+ if doc_comment is not None:
+ out_java_struct += "\t/**\n\t * " + doc_comment.replace("\n", "\n\t * ") + "\n\t */\n"
+ hu_ret_ty = return_type_info.java_hu_ty
+ if return_type_info.nullable:
+ #hu_ret_ty += "?" - apparently mono doesn't support the nullable stuff
+ pass
+ if not takes_self:
+ if meth_n == "new":
+ out_java_struct += "\tpublic static " + hu_ret_ty + " of("
+ elif meth_n == "default":
+ out_java_struct += "\tpublic static " + hu_ret_ty + " with_default("
+ else:
+ out_java_struct += "\tpublic static " + hu_ret_ty + " " + meth_n + "("
+ elif meth_n == "clone_ptr" or (struct_meth.startswith("LDKCResult") and (meth_n == "get_ok" or meth_n == "get_err")):
+ out_java_struct += "\tinternal " + hu_ret_ty + " " + meth_n + "("
+ else:
+ if meth_n == "hash" and return_type_info.java_hu_ty == "long":
+ extra_java_struct_out = "\tpublic override int GetHashCode() {\n"
+ extra_java_struct_out += "\t\treturn (int)this.hash();\n"
+ extra_java_struct_out += "\t}\n"
+ elif meth_n == "eq" and return_type_info.java_hu_ty == "bool":
+ extra_java_struct_out = "\tpublic override bool Equals(object o) {\n"
+ extra_java_struct_out += "\t\tif (!(o is " + struct_meth + ")) return false;\n"
+ extra_java_struct_out += "\t\treturn this.eq((" + struct_meth + ")o);\n"
+ extra_java_struct_out += "\t}\n"
+ if meth_n == "lock":
+ out_java_struct += "\tpublic " + hu_ret_ty + " do_lock("
+ else:
+ out_java_struct += "\tpublic " + hu_ret_ty + " " + meth_n + "("
+ for idx, arg in enumerate(argument_types):
+ if idx != 0:
+ if not takes_self or idx > 1:
+ out_java_struct += ", "
+ elif takes_self:
+ continue
+ if arg.java_ty != "void":
+ if arg.arg_name in default_constructor_args:
+ assert not arg.nullable
+ for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
+ if explode_idx != 0:
+ out_java_struct += (", ")
+ out_java_struct += (
+ explode_arg.java_hu_ty + " " + arg.arg_name + "_" + explode_arg.arg_name)
+ else:
+ ty_string = arg.java_hu_ty
+ if arg.nullable:
+ #ty_string += "?" - apparently mono doesn't support the nullable stuff
+ pass
+ ty_string = self.fully_qualified_hu_ty_path(arg)
+ out_java_struct += ty_string + " " + arg_name_repl(arg.arg_name, arg.arg_name)
+ out_java += (");\n")
+ out_c += (") {\n")
+ if out_java_struct is not None:
+ out_java_struct += (") {\n")
+ for info in argument_types:
+ if info.arg_conv is not None:
+ out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
+ if return_type_info.ret_conv is not None:
+ out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
+ elif return_type_info.c_ty != "void":
+ out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
+ else:
+ out_c += ("\t")
+ if c_call_string is None:
+ out_c += (method_name + "(")
+ else:
+ out_c += (c_call_string)
+ for idx, info in enumerate(argument_types):
+ if info.arg_conv_name is not None:
+ if idx != 0:
+ out_c += (", ")
+ elif c_call_string is not None:
+ continue
+ out_c += (info.arg_conv_name)
+ out_c += (")")
+ if return_type_info.ret_conv is not None:
+ out_c += (ret_conv_sfx.replace('\n', '\n\t'))
+ else:
+ out_c += (";")
+ for info in argument_types:
+ if info.arg_conv_cleanup is not None:
+ out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
+ if return_type_info.ret_conv is not None:
+ out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
+ elif return_type_info.c_ty != "void":
+ out_c += ("\n\treturn ret_val;")
+ out_c += ("\n}\n\n")
+
+ if args_known:
+ out_java_struct += ("\t\t")
+ if return_type_info.java_ty != "void":
+ out_java_struct += (return_type_info.java_ty + " ret = ")
+ out_java_struct += ("bindings." + method_name + "(")
+ for idx, info in enumerate(argument_types):
+ if idx != 0:
+ out_java_struct += (", ")
+ if idx == 0 and takes_self:
+ out_java_struct += ("this.ptr")
+ elif info.arg_name in default_constructor_args:
+ out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
+ for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
+ if explode_idx != 0:
+ out_java_struct += (", ")
+ expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
+ if explode_arg.from_hu_conv is not None:
+ out_java_struct += (
+ explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
+ else:
+ out_java_struct += (expl_arg_name)
+ out_java_struct += (")")
+ elif info.from_hu_conv is not None:
+ out_java_struct += arg_name_repl(info.from_hu_conv[0], info.arg_name)
+ else:
+ out_java_struct += arg_name_repl(info.arg_name, info.arg_name)
+ out_java_struct += (");\n")
+
+ # Like Java, the C# GC is quite aggressive and can finalize an object while a method
+ # on it is operating. Unlike Java, this behavior appears to be better documented,
+ # which is nice.
+ for idx, info in enumerate(argument_types):
+ if idx == 0 and takes_self:
+ out_java_struct += ("\t\tGC.KeepAlive(this);\n")
+ elif info.arg_name in default_constructor_args:
+ for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
+ expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
+ out_java_struct += ("\t\tGC.KeepAlive(" + expl_arg_name + ");\n")
+ elif info.c_ty != "void":
+ out_java_struct += ("\t\tGC.KeepAlive(" + arg_name_repl(info.arg_name, info.arg_name) + ");\n")
+
+ if return_type_info.java_ty == "long" and return_type_info.java_hu_ty != "long":
+ out_java_struct += "\t\tif (ret >= 0 && ret <= 4096) { return null; }\n"
+
+ if return_type_info.to_hu_conv is not None:
+ if not takes_self:
+ out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t")
+ .replace("this", return_type_info.to_hu_conv_name) + "\n")
+ else:
+ out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
+
+ for idx, info in enumerate(argument_types):
+ if idx == 0 and takes_self:
+ pass
+ elif info.arg_name in default_constructor_args:
+ for explode_arg in default_constructor_args[info.arg_name]:
+ expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
+ if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
+ out_java_struct += ("\t\t" +
+ arg_name_repl(explode_arg.from_hu_conv[1], info.arg_name)
+ .replace(explode_arg.arg_name, expl_arg_name)
+ .replace("this", return_type_info.to_hu_conv_name) + ";\n")
+ elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
+ if not takes_self and return_type_info.to_hu_conv_name is not None:
+ out_java_struct += ("\t\t" + arg_name_repl(info.from_hu_conv[1], info.arg_name)
+ .replace("this", return_type_info.to_hu_conv_name)
+ .replace("\n", "\n\t\t") + ";\n")
+ else:
+ out_java_struct += ("\t\t" + arg_name_repl(info.from_hu_conv[1], info.arg_name)
+ .replace("\n", "\n\t\t") + ";\n")
+
+ if takes_self and not takes_self_as_ref:
+ out_java_struct += "\t\t" + argument_types[0].from_hu_conv[1].replace("\n", "\n\t\t").replace("this_arg", "this") + ";\n"
+ if return_type_info.to_hu_conv_name is not None:
+ out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
+ elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
+ out_java_struct += ("\t\treturn ret;\n")
+ out_java_struct += ("\t}\n\n")
+
+ return (out_java, out_c, out_java_struct + extra_java_struct_out)
+
+ def cleanup(self):
+ pass
projects / ldk-java / commitdiff