1 from bindingstypes import *
4 def __init__(self, DEBUG: bool, **kwargs):
5 self.c_array_class_caches = set()
6 self.c_type_map = dict(
13 self.to_hu_conv_templates = dict(
14 ptr = '{human_type} {var_name}_hu_conv = new {human_type}(null, {var_name});',
15 default = '{human_type} {var_name}_hu_conv = new {human_type}(null, {var_name});'
18 self.bindings_header = """package org.ldk.impl;
19 import org.ldk.enums.*;
21 public class bindings {
22 public static class VecOrSliceDef {
26 public VecOrSliceDef(long dataptr, long datalen, long stride) {
27 this.dataptr = dataptr; this.datalen = datalen; this.stride = stride;
31 System.loadLibrary(\"lightningjni\");
32 init(java.lang.Enum.class, VecOrSliceDef.class);
35 static native void init(java.lang.Class c, java.lang.Class slicedef);
36 static native void init_class_cache();
38 public static native boolean deref_bool(long ptr);
39 public static native long deref_long(long ptr);
40 public static native void free_heap_ptr(long ptr);
41 public static native byte[] read_bytes(long ptr, long len);
42 public static native byte[] get_u8_slice_bytes(long slice_ptr);
43 public static native long bytes_to_u8_vec(byte[] bytes);
44 public static native long new_txpointer_copy_data(byte[] txdata);
45 public static native void txpointer_free(long ptr);
46 public static native byte[] txpointer_get_buffer(long ptr);
47 public static native long vec_slice_len(long vec);
48 public static native long new_empty_slice_vec();
52 self.bindings_footer = "}\n"
54 self.util_fn_pfx = """package org.ldk.structs;
55 import org.ldk.impl.bindings;
56 import java.util.Arrays;
58 public class UtilMethods {
60 self.util_fn_sfx = "}"
61 self.common_base = """package org.ldk.structs;
62 import java.util.LinkedList;
65 LinkedList<Object> ptrs_to = new LinkedList();
66 protected CommonBase(long ptr) { this.ptr = ptr; }
67 public long _test_only_get_ptr() { return this.ptr; }
71 self.c_file_pfx = """#include \"org_ldk_impl_bindings.h\"
72 #include <rust_types.h>
73 #include <lightning.h>
75 #include <stdatomic.h>
81 self.c_file_pfx = self.c_file_pfx + """#define MALLOC(a, _) malloc(a)
82 #define FREE(p) if ((long)(p) > 1024) { free(p); }
83 #define DO_ASSERT(a) (void)(a)
87 self.c_file_pfx = self.c_file_pfx + """#include <assert.h>
88 // Always run a, then assert it is true:
89 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
90 // Assert a is true or do nothing
91 #define CHECK(a) DO_ASSERT(a)
93 // Running a leak check across all the allocations and frees of the JDK is a mess,
94 // so instead we implement our own naive leak checker here, relying on the -wrap
95 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
96 // and free'd in Rust or C across the generated bindings shared library.
100 static mtx_t allocation_mtx;
102 void __attribute__((constructor)) init_mtx() {
103 DO_ASSERT(mtx_init(&allocation_mtx, mtx_plain) == thrd_success);
107 typedef struct allocation {
108 struct allocation* next;
110 const char* struct_name;
115 static allocation* allocation_ll = NULL;
117 void* __real_malloc(size_t len);
118 void* __real_calloc(size_t nmemb, size_t len);
119 static void new_allocation(void* res, const char* struct_name, size_t len) {
120 allocation* new_alloc = __real_malloc(sizeof(allocation));
121 new_alloc->ptr = res;
122 new_alloc->struct_name = struct_name;
123 new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX);
124 new_alloc->alloc_len = len;
125 DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
126 new_alloc->next = allocation_ll;
127 allocation_ll = new_alloc;
128 DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
130 static void* MALLOC(size_t len, const char* struct_name) {
131 void* res = __real_malloc(len);
132 new_allocation(res, struct_name, len);
135 void __real_free(void* ptr);
136 static void alloc_freed(void* ptr) {
137 allocation* p = NULL;
138 DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
139 allocation* it = allocation_ll;
140 while (it->ptr != ptr) {
141 p = it; it = it->next;
143 fprintf(stderr, "Tried to free unknown pointer %p at:\\n", ptr);
145 int bt_len = backtrace(bt, BT_MAX);
146 backtrace_symbols_fd(bt, bt_len, STDERR_FILENO);
147 fprintf(stderr, "\\n\\n");
148 DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
149 return; // addrsan should catch malloc-unknown and print more info than we have
152 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
153 DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
154 DO_ASSERT(it->ptr == ptr);
157 static void FREE(void* ptr) {
158 if ((long)ptr < 1024) return; // Rust loves to create pointers to the NULL page for dummys
163 void* __wrap_malloc(size_t len) {
164 void* res = __real_malloc(len);
165 new_allocation(res, "malloc call", len);
168 void* __wrap_calloc(size_t nmemb, size_t len) {
169 void* res = __real_calloc(nmemb, len);
170 new_allocation(res, "calloc call", len);
173 void __wrap_free(void* ptr) {
174 if (ptr == NULL) return;
179 void* __real_realloc(void* ptr, size_t newlen);
180 void* __wrap_realloc(void* ptr, size_t len) {
181 if (ptr != NULL) alloc_freed(ptr);
182 void* res = __real_realloc(ptr, len);
183 new_allocation(res, "realloc call", len);
186 void __wrap_reallocarray(void* ptr, size_t new_sz) {
187 // Rust doesn't seem to use reallocarray currently
191 void __attribute__((destructor)) check_leaks() {
192 size_t alloc_count = 0;
193 size_t alloc_size = 0;
194 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
195 fprintf(stderr, "%s %p remains:\\n", a->struct_name, a->ptr);
196 backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO);
197 fprintf(stderr, "\\n\\n");
199 alloc_size += a->alloc_len;
201 fprintf(stderr, "%lu allocations remained for %lu bytes.\\n", alloc_count, alloc_size);
202 DO_ASSERT(allocation_ll == NULL);
205 self.c_file_pfx = self.c_file_pfx + """
206 static jmethodID ordinal_meth = NULL;
207 static jmethodID slicedef_meth = NULL;
208 static jclass slicedef_cls = NULL;
209 JNIEXPORT void Java_org_ldk_impl_bindings_init(JNIEnv * env, jclass _b, jclass enum_class, jclass slicedef_class) {
210 ordinal_meth = (*env)->GetMethodID(env, enum_class, "ordinal", "()I");
211 CHECK(ordinal_meth != NULL);
212 slicedef_meth = (*env)->GetMethodID(env, slicedef_class, "<init>", "(JJJ)V");
213 CHECK(slicedef_meth != NULL);
214 slicedef_cls = (*env)->NewGlobalRef(env, slicedef_class);
215 CHECK(slicedef_cls != NULL);
218 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_deref_1bool (JNIEnv * env, jclass _a, jlong ptr) {
219 return *((bool*)ptr);
221 JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_deref_1long (JNIEnv * env, jclass _a, jlong ptr) {
222 return *((long*)ptr);
224 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_free_1heap_1ptr (JNIEnv * env, jclass _a, jlong ptr) {
227 JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_read_1bytes (JNIEnv * env, jclass _b, jlong ptr, jlong len) {
228 jbyteArray ret_arr = (*env)->NewByteArray(env, len);
229 (*env)->SetByteArrayRegion(env, ret_arr, 0, len, (unsigned char*)ptr);
232 JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes (JNIEnv * env, jclass _b, jlong slice_ptr) {
233 LDKu8slice *slice = (LDKu8slice*)slice_ptr;
234 jbyteArray ret_arr = (*env)->NewByteArray(env, slice->datalen);
235 (*env)->SetByteArrayRegion(env, ret_arr, 0, slice->datalen, slice->data);
238 JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_bytes_1to_1u8_1vec (JNIEnv * env, jclass _b, jbyteArray bytes) {
239 LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "LDKCVec_u8");
240 vec->datalen = (*env)->GetArrayLength(env, bytes);
241 vec->data = (uint8_t*)MALLOC(vec->datalen, "LDKCVec_u8Z Bytes");
242 (*env)->GetByteArrayRegion (env, bytes, 0, vec->datalen, vec->data);
245 JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_txpointer_1get_1buffer (JNIEnv * env, jclass _b, jlong ptr) {
246 LDKTransaction *txdata = (LDKTransaction*)ptr;
248 slice.data = txdata->data;
249 slice.datalen = txdata->datalen;
250 return Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes(env, _b, (long)&slice);
252 JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1txpointer_1copy_1data (JNIEnv * env, jclass _b, jbyteArray bytes) {
253 LDKTransaction *txdata = (LDKTransaction*)MALLOC(sizeof(LDKTransaction), "LDKTransaction");
254 txdata->datalen = (*env)->GetArrayLength(env, bytes);
255 txdata->data = (uint8_t*)MALLOC(txdata->datalen, "Tx Data Bytes");
256 txdata->data_is_owned = false;
257 (*env)->GetByteArrayRegion (env, bytes, 0, txdata->datalen, txdata->data);
260 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_txpointer_1free (JNIEnv * env, jclass _b, jlong ptr) {
261 LDKTransaction *tx = (LDKTransaction*)ptr;
262 tx->data_is_owned = true;
263 Transaction_free(*tx);
266 JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_vec_1slice_1len (JNIEnv * env, jclass _a, jlong ptr) {
267 // Check offsets of a few Vec types are all consistent as we're meant to be generic across types
268 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_SignatureZ, datalen), "Vec<*> needs to be mapped identically");
269 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_MessageSendEventZ, datalen), "Vec<*> needs to be mapped identically");
270 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_EventZ, datalen), "Vec<*> needs to be mapped identically");
271 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_C2Tuple_usizeTransactionZZ, datalen), "Vec<*> needs to be mapped identically");
272 LDKCVec_u8Z *vec = (LDKCVec_u8Z*)ptr;
273 return (long)vec->datalen;
275 JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1empty_1slice_1vec (JNIEnv * env, jclass _b) {
276 // Check sizes of a few Vec types are all consistent as we're meant to be generic across types
277 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_SignatureZ), "Vec<*> needs to be mapped identically");
278 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_MessageSendEventZ), "Vec<*> needs to be mapped identically");
279 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_EventZ), "Vec<*> needs to be mapped identically");
280 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_C2Tuple_usizeTransactionZZ), "Vec<*> needs to be mapped identically");
281 LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "Empty LDKCVec");
287 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
288 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
289 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
290 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
292 _Static_assert(sizeof(jlong) == sizeof(int64_t), "We assume that j-types are the same as C types");
293 _Static_assert(sizeof(jbyte) == sizeof(char), "We assume that j-types are the same as C types");
294 _Static_assert(sizeof(void*) <= 8, "Pointers must fit into 64 bits");
296 typedef jlongArray int64_tArray;
297 typedef jbyteArray int8_tArray;
299 static inline jstring str_ref_to_java(JNIEnv *env, const char* chars, size_t len) {
300 // Sadly we need to create a temporary because Java can't accept a char* without a 0-terminator
301 char* err_buf = MALLOC(len + 1, "str conv buf");
302 memcpy(err_buf, chars, len);
304 jstring err_conv = (*env)->NewStringUTF(env, chars);
310 self.hu_struct_file_prefix = """package org.ldk.structs;
312 import org.ldk.impl.bindings;
313 import org.ldk.enums.*;
314 import org.ldk.util.*;
315 import java.util.Arrays;
317 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
319 self.c_fn_ty_pfx = "JNIEXPORT "
320 self.c_fn_args_pfx = "JNIEnv *env, jclass clz"
321 self.file_ext = ".java"
322 self.ptr_c_ty = "int64_t"
323 self.ptr_native_ty = "long"
324 self.result_c_ty = "jclass"
325 self.ptr_arr = "jobjectArray"
326 self.get_native_arr_len_call = ("(*env)->GetArrayLength(env, ", ")")
328 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
329 if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
330 return "(*env)->ReleasePrimitiveArrayCritical(env, " + arr_var + ", " + arr_ptr_var + ", 0)"
332 def create_native_arr_call(self, arr_len, ty_info):
333 if ty_info.c_ty == "int8_tArray":
334 return "(*env)->NewByteArray(env, " + arr_len + ")"
335 elif ty_info.subty.c_ty.endswith("Array"):
336 clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_")
337 self.c_array_class_caches.add(clz_var)
338 return "(*env)->NewObjectArray(env, " + arr_len + ", " + clz_var + "_clz, NULL);\n"
340 return "(*env)->New" + ty_info.java_ty.strip("[]").title() + "Array(env, " + arr_len + ")"
341 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
342 if ty_info.c_ty == "int8_tArray":
343 return ("(*env)->SetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", ", ")")
346 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
347 if ty_info.c_ty == "int8_tArray":
349 return "(*env)->GetByteArrayRegion(env, " + arr_name + ", 0, " + arr_len + ", " + dest_name + ")"
351 return "(*env)->GetByteArrayElements (env, " + arr_name + ", NULL)"
352 elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"):
353 return "(*env)->Get" + ty_info.subty.java_ty.title() + "ArrayElements (env, " + arr_name + ", NULL)"
356 def get_native_arr_elem(self, arr_name, idxc, ty_info):
357 if self.get_native_arr_contents(arr_name, "", "", ty_info, False) is None:
358 return "(*env)->GetObjectArrayElement(env, " + arr_name + ", " + idxc + ")"
360 assert False # Only called if above is None
361 def get_native_arr_ptr_call(self, ty_info):
362 if ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array"):
364 return ("(*env)->GetPrimitiveArrayCritical(env, ", ", NULL)")
365 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
366 if ty_info.subty is None or not ty_info.subty.c_ty.endswith("Array"):
368 return "(*env)->SetObjectArrayElement(env, " + arr_name + ", " + idxc + ", " + entry_access + ")"
369 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
370 if ty_info.c_ty == "int8_tArray":
371 return "(*env)->ReleaseByteArrayElements(env, " + arr_name + ", (int8_t*)" + dest_name + ", 0);"
373 return "(*env)->Release" + ty_info.java_ty.strip("[]").title() + "ArrayElements(env, " + arr_name + ", " + dest_name + ", 0)"
375 def str_ref_to_c_call(self, var_name, str_len):
376 return "str_ref_to_java(env, " + var_name + ", " + str_len + ")"
378 def c_fn_name_define_pfx(self, fn_name, has_args):
380 return "JNICALL Java_org_ldk_impl_bindings_" + fn_name.replace("_", "_1") + "(JNIEnv *env, jclass clz, "
381 return "JNICALL Java_org_ldk_impl_bindings_" + fn_name.replace("_", "_1") + "(JNIEnv *env, jclass clz"
385 for ty in self.c_array_class_caches:
386 res = res + "static jclass " + ty + "_clz = NULL;\n"
387 res = res + "JNIEXPORT void Java_org_ldk_impl_bindings_init_1class_1cache(JNIEnv * env, jclass clz) {\n"
388 for ty in self.c_array_class_caches:
389 res = res + "\t" + ty + "_clz = (*env)->FindClass(env, \"" + ty.replace("arr_of_", "[") + "\");\n"
390 res = res + "\tCHECK(" + ty + "_clz != NULL);\n"
391 res = res + "\t" + ty + "_clz = (*env)->NewGlobalRef(env, " + ty + "_clz);\n"
395 def native_c_unitary_enum_map(self, struct_name, variants):
396 out_java_enum = "package org.ldk.enums;\n\n"
399 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_from_java(" + self.c_fn_args_pfx + ") {\n"
400 out_c = out_c + "\tswitch ((*env)->CallIntMethod(env, clz, ordinal_meth)) {\n"
402 out_java_enum = out_java_enum + "public enum " + struct_name + " {\n"
405 out_java_enum = out_java_enum + "\t" + var + ",\n"
406 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
408 out_java_enum = out_java_enum + "\t; static native void init();\n"
409 out_java_enum = out_java_enum + "\tstatic { init(); }\n"
410 out_java_enum = out_java_enum + "}"
411 out_java = out_java + "\tstatic { " + struct_name + ".values(); /* Force enum statics to run */ }\n"
412 out_c = out_c + "\t}\n"
413 out_c = out_c + "\tabort();\n"
414 out_c = out_c + "}\n"
416 out_c = out_c + "static jclass " + struct_name + "_class = NULL;\n"
418 out_c = out_c + "static jfieldID " + struct_name + "_" + var + " = NULL;\n"
419 out_c = out_c + self.c_fn_ty_pfx + "void JNICALL Java_org_ldk_enums_" + struct_name.replace("_", "_1") + "_init (" + self.c_fn_args_pfx + ") {\n"
420 out_c = out_c + "\t" + struct_name + "_class = (*env)->NewGlobalRef(env, clz);\n"
421 out_c = out_c + "\tCHECK(" + struct_name + "_class != NULL);\n"
423 out_c = out_c + "\t" + struct_name + "_" + var + " = (*env)->GetStaticFieldID(env, " + struct_name + "_class, \"" + var + "\", \"Lorg/ldk/enums/" + struct_name + ";\");\n"
424 out_c = out_c + "\tCHECK(" + struct_name + "_" + var + " != NULL);\n"
425 out_c = out_c + "}\n"
426 out_c = out_c + "static inline jclass " + struct_name + "_to_java(JNIEnv *env, " + struct_name + " val) {\n"
427 out_c = out_c + "\tswitch (val) {\n"
430 out_c = out_c + "\t\tcase " + var + ":\n"
431 out_c = out_c + "\t\t\treturn (*env)->GetStaticObjectField(env, " + struct_name + "_class, " + struct_name + "_" + var + ");\n"
433 out_c = out_c + "\t\tdefault: abort();\n"
434 out_c = out_c + "\t}\n"
435 out_c = out_c + "}\n\n"
437 return (out_c, out_java_enum, out_java)
439 def c_unitary_enum_to_native_call(self, ty_info):
440 return (ty_info.rust_obj + "_to_java(env, ", ")")
441 def native_unitary_enum_to_c_call(self, ty_info):
442 return (ty_info.rust_obj + "_from_java(env, ", ")")
444 def c_complex_enum_pfx(self, struct_name, variants, init_meth_jty_strs):
447 out_c = out_c + "static jclass " + struct_name + "_" + var + "_class = NULL;\n"
448 out_c = out_c + "static jmethodID " + struct_name + "_" + var + "_meth = NULL;\n"
449 out_c = out_c + self.c_fn_ty_pfx + "void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (" + self.c_fn_args_pfx + ") {\n"
450 for var_name in variants:
451 out_c = out_c + "\t" + struct_name + "_" + var_name + "_class =\n"
452 out_c = out_c + "\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n"
453 out_c = out_c + "\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n"
454 out_c = 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"
455 out_c = out_c + "\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n"
456 out_c = out_c + "}\n"
459 def c_complex_enum_pass_ty(self, struct_name):
462 def c_constr_native_complex_enum(self, struct_name, variant, c_params):
463 ret = "(*env)->NewObject(env, " + struct_name + "_" + variant + "_class, " + struct_name + "_" + variant + "_meth"
464 for param in c_params:
465 ret = ret + ", " + param
468 def native_c_map_trait(self, struct_name, field_vars, field_fns):
472 # First generate most of the Java code, note that we need information about java method argument strings for C
473 out_java_trait = out_java_trait + self.hu_struct_file_prefix
474 out_java_trait = out_java_trait + "public class " + struct_name.replace("LDK","") + " extends CommonBase {\n"
475 out_java_trait = out_java_trait + "\tfinal bindings." + struct_name + " bindings_instance;\n"
476 out_java_trait = out_java_trait + "\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }\n"
477 out_java_trait = out_java_trait + "\tprivate " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg"
478 for var in field_vars:
479 if isinstance(var, ConvInfo):
480 out_java_trait = out_java_trait + ", " + var.java_hu_ty + " " + var.arg_name
482 out_java_trait = out_java_trait + ", bindings." + var[0] + " " + var[1]
483 out_java_trait = out_java_trait + ") {\n"
484 out_java_trait = out_java_trait + "\t\tsuper(bindings." + struct_name + "_new(arg"
485 for var in field_vars:
486 if isinstance(var, ConvInfo):
487 if var.from_hu_conv is not None:
488 out_java_trait = out_java_trait + ", " + var.from_hu_conv[0]
490 out_java_trait = out_java_trait + ", " + var.arg_name
492 out_java_trait = out_java_trait + ", " + var[1]
493 out_java_trait = out_java_trait + "));\n"
494 out_java_trait = out_java_trait + "\t\tthis.ptrs_to.add(arg);\n"
495 for var in field_vars:
496 if isinstance(var, ConvInfo):
497 if var.from_hu_conv is not None and var.from_hu_conv[1] != "":
498 out_java_trait = out_java_trait + "\t\t" + var.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n"
500 out_java_trait = out_java_trait + "\t\tthis.ptrs_to.add(" + var[1] + ");\n"
501 out_java_trait = out_java_trait + "\t\tthis.bindings_instance = arg;\n"
502 out_java_trait = out_java_trait + "\t}\n"
503 out_java_trait = out_java_trait + "\t@Override @SuppressWarnings(\"deprecation\")\n"
504 out_java_trait = out_java_trait + "\tprotected void finalize() throws Throwable {\n"
505 out_java_trait = out_java_trait + "\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n"
506 out_java_trait = out_java_trait + "\t}\n\n"
508 java_trait_constr = "\tprivate static class " + struct_name + "Holder { " + struct_name.replace("LDK", "") + " held; }\n"
509 java_trait_constr = java_trait_constr + "\tpublic static " + struct_name.replace("LDK", "") + " new_impl(" + struct_name.replace("LDK", "") + "Interface arg"
510 for var in field_vars:
511 if isinstance(var, ConvInfo):
512 java_trait_constr = java_trait_constr + ", " + var.java_hu_ty + " " + var.arg_name
514 # Ideally we'd be able to take any instance of the interface, but our C code can only represent
515 # Java-implemented version, so we require users pass a Java implementation here :/
516 java_trait_constr = java_trait_constr + ", " + var[0].replace("LDK", "") + "." + var[0].replace("LDK", "") + "Interface " + var[1] + "_impl"
517 java_trait_constr = java_trait_constr + ") {\n\t\tfinal " + struct_name + "Holder impl_holder = new " + struct_name + "Holder();\n"
518 java_trait_constr = java_trait_constr + "\t\timpl_holder.held = new " + struct_name.replace("LDK", "") + "(new bindings." + struct_name + "() {\n"
519 out_java_trait = out_java_trait + "\tpublic static interface " + struct_name.replace("LDK", "") + "Interface {\n"
520 out_java = out_java + "\tpublic interface " + struct_name + " {\n"
522 for fn_line in field_fns:
523 java_meth_descr = "("
524 if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
525 out_java = out_java + "\t\t " + fn_line.ret_ty_info.java_ty + " " + fn_line.fn_name + "("
526 java_trait_constr = java_trait_constr + "\t\t\t@Override public " + fn_line.ret_ty_info.java_ty + " " + fn_line.fn_name + "("
527 out_java_trait = out_java_trait + "\t\t" + fn_line.ret_ty_info.java_hu_ty + " " + fn_line.fn_name + "("
529 for idx, arg_conv_info in enumerate(fn_line.args_ty):
531 out_java = out_java + ", "
532 java_trait_constr = java_trait_constr + ", "
533 out_java_trait = out_java_trait + ", "
534 out_java = out_java + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
535 out_java_trait = out_java_trait + arg_conv_info.java_hu_ty + " " + arg_conv_info.arg_name
536 java_trait_constr = java_trait_constr + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
537 java_meth_descr = java_meth_descr + arg_conv_info.java_fn_ty_arg
538 java_meth_descr = java_meth_descr + ")" + fn_line.ret_ty_info.java_fn_ty_arg
539 java_meths.append((fn_line.fn_name, java_meth_descr))
541 out_java = out_java + ");\n"
542 out_java_trait = out_java_trait + ");\n"
543 java_trait_constr = java_trait_constr + ") {\n"
545 for arg_info in fn_line.args_ty:
546 if arg_info.to_hu_conv is not None:
547 java_trait_constr = java_trait_constr + "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
549 if fn_line.ret_ty_info.java_ty != "void":
550 java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_line.fn_name + "("
552 java_trait_constr = java_trait_constr + "\t\t\t\targ." + fn_line.fn_name + "("
554 for idx, arg_info in enumerate(fn_line.args_ty):
556 java_trait_constr = java_trait_constr + ", "
557 if arg_info.to_hu_conv_name is not None:
558 java_trait_constr = java_trait_constr + arg_info.to_hu_conv_name
560 java_trait_constr = java_trait_constr + arg_info.arg_name
562 java_trait_constr = java_trait_constr + ");\n"
563 if fn_line.ret_ty_info.java_ty != "void":
564 if fn_line.ret_ty_info.from_hu_conv is not None:
565 java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.java_ty + " result = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n"
566 if fn_line.ret_ty_info.from_hu_conv[1] != "":
567 java_trait_constr = java_trait_constr + "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
568 #if fn_line.ret_ty_info.rust_obj in result_types:
569 java_trait_constr = java_trait_constr + "\t\t\t\treturn result;\n"
571 java_trait_constr = java_trait_constr + "\t\t\t\treturn ret;\n"
572 java_trait_constr = java_trait_constr + "\t\t\t}\n"
573 java_trait_constr = java_trait_constr + "\t\t}"
574 for var in field_vars:
575 if isinstance(var, ConvInfo):
576 java_trait_constr = java_trait_constr + ", " + var.arg_name
578 java_trait_constr = java_trait_constr + ", " + var[1] + ".new_impl(" + var[1] + "_impl).bindings_instance"
579 out_java_trait = out_java_trait + "\t}\n"
580 out_java_trait = out_java_trait + java_trait_constr + ");\n\t\treturn impl_holder.held;\n\t}\n"
582 out_java = out_java + "\t}\n"
584 out_java = out_java + "\tpublic static native long " + struct_name + "_new(" + struct_name + " impl"
585 for var in field_vars:
586 if isinstance(var, ConvInfo):
587 out_java = out_java + ", " + var.java_ty + " " + var.arg_name
589 out_java = out_java + ", " + var[0] + " " + var[1]
590 out_java = out_java + ");\n"
592 # Now that we've written out our java code (and created java_meths), generate C
593 out_c = "typedef struct " + struct_name + "_JCalls {\n"
594 out_c = out_c + "\tatomic_size_t refcnt;\n"
595 out_c = out_c + "\tJavaVM *vm;\n"
596 out_c = out_c + "\tjweak o;\n"
597 for var in field_vars:
598 if isinstance(var, ConvInfo):
599 # We're a regular ol' field
603 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
605 if fn.fn_name != "free" and fn.fn_name != "clone":
606 out_c = out_c + "\tjmethodID " + fn.fn_name + "_meth;\n"
607 out_c = out_c + "} " + struct_name + "_JCalls;\n"
609 for fn_line in field_fns:
610 if fn_line.fn_name == "free":
611 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
612 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
613 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
614 out_c = out_c + "\t\tJNIEnv *env;\n"
615 out_c = out_c + "\t\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n"
616 out_c = out_c + "\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n"
617 out_c = out_c + "\t\tFREE(j_calls);\n"
618 out_c = out_c + "\t}\n}\n"
620 for idx, fn_line in enumerate(field_fns):
621 if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
622 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
623 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_jcall("
624 if fn_line.self_is_const:
625 out_c = out_c + "const void* this_arg"
627 out_c = out_c + "void* this_arg"
629 for idx, arg in enumerate(fn_line.args_ty):
630 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
632 out_c = out_c + ") {\n"
633 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
634 out_c = out_c + "\tJNIEnv *env;\n"
635 out_c = out_c + "\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n"
637 for arg_info in fn_line.args_ty:
638 if arg_info.ret_conv is not None:
639 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
640 out_c = out_c + arg_info.arg_name
641 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
643 out_c = out_c + "\tjobject obj = (*env)->NewLocalRef(env, j_calls->o);\n\tCHECK(obj != NULL);\n"
644 if fn_line.ret_ty_info.c_ty.endswith("Array"):
645 out_c = out_c + "\t" + fn_line.ret_ty_info.c_ty + " arg = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
646 elif not fn_line.ret_ty_info.passed_as_ptr:
647 out_c = out_c + "\treturn (*env)->Call" + fn_line.ret_ty_info.java_ty.title() + "Method(env, obj, j_calls->" + fn_line.fn_name + "_meth"
649 out_c = out_c + "\t" + fn_line.ret_ty_info.rust_obj + "* ret = (" + fn_line.ret_ty_info.rust_obj + "*)(*env)->CallLongMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth"
651 for idx, arg_info in enumerate(fn_line.args_ty):
652 if arg_info.ret_conv is not None:
653 out_c = out_c + ", " + arg_info.ret_conv_name
655 out_c = out_c + ", " + arg_info.arg_name
656 out_c = out_c + ");\n"
657 if fn_line.ret_ty_info.arg_conv is not None:
658 out_c = out_c + "\t" + fn_line.ret_ty_info.arg_conv.replace("\n", "\n\t") + "\n\treturn " + fn_line.ret_ty_info.arg_conv_name + ";\n"
660 out_c = out_c + "}\n"
662 # Write out a clone function whether we need one or not, as we use them in moving to rust
663 out_c = out_c + "static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n"
664 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
665 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
666 for var in field_vars:
667 if not isinstance(var, ConvInfo):
668 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
669 out_c = out_c + "\treturn (void*) this_arg;\n"
670 out_c = out_c + "}\n"
672 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (" + self.c_fn_args_pfx + ", jobject o"
673 for var in field_vars:
674 if isinstance(var, ConvInfo):
675 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
677 out_c = out_c + ", jobject " + var[1]
678 out_c = out_c + ") {\n"
680 out_c = out_c + "\tjclass c = (*env)->GetObjectClass(env, o);\n"
681 out_c = out_c + "\tCHECK(c != NULL);\n"
682 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
683 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
684 out_c = out_c + "\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n"
685 out_c = out_c + "\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n"
687 for (fn_name, java_meth_descr) in java_meths:
688 if fn_name != "free" and fn_name != "clone":
689 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
690 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
692 for var in field_vars:
693 if isinstance(var, ConvInfo) and var.arg_conv is not None:
694 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
695 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
696 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
697 for fn_line in field_fns:
698 if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
699 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_jcall,\n"
700 elif fn_line.fn_name == "free":
701 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
703 out_c = out_c + "\t\t.clone = " + struct_name + "_JCalls_clone,\n"
704 for var in field_vars:
705 if isinstance(var, ConvInfo):
706 if var.arg_conv_name is not None:
707 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
708 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
710 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
711 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
713 out_c = out_c + "\t\t." + var[1] + " = " + var[0] + "_init(env, clz, " + var[1] + "),\n"
714 out_c = out_c + "\t};\n"
715 for var in field_vars:
716 if not isinstance(var, ConvInfo):
717 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
718 out_c = out_c + "\treturn ret;\n"
719 out_c = out_c + "}\n"
721 out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "jobject o"
722 for var in field_vars:
723 if isinstance(var, ConvInfo):
724 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
726 out_c = out_c + ", jobject " + var[1]
727 out_c = out_c + ") {\n"
728 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
729 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(env, clz, o"
730 for var in field_vars:
731 if isinstance(var, ConvInfo):
732 out_c = out_c + ", " + var.arg_name
734 out_c = out_c + ", " + var[1]
735 out_c = out_c + ");\n"
736 out_c = out_c + "\treturn (long)res_ptr;\n"
737 out_c = out_c + "}\n"
739 return (out_java, out_java_trait, out_c)
741 def trait_struct_inc_refcnt(self, ty_info):
742 base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
743 base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
744 base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}"
747 def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
748 java_hu_type = struct_name.replace("LDK", "")
753 out_java_enum += (self.hu_struct_file_prefix)
754 out_java_enum += ("public class " + java_hu_type + " extends CommonBase {\n")
755 out_java_enum += ("\tprivate " + java_hu_type + "(Object _dummy, long ptr) { super(ptr); }\n")
756 out_java_enum += ("\t@Override @SuppressWarnings(\"deprecation\")\n")
757 out_java_enum += ("\tprotected void finalize() throws Throwable {\n")
758 out_java_enum += ("\t\tsuper.finalize();\n")
759 out_java_enum += ("\t\tif (ptr != 0) { bindings." + java_hu_type + "_free(ptr); }\n")
760 out_java_enum += ("\t}\n")
761 out_java_enum += ("\tstatic " + java_hu_type + " constr_from_ptr(long ptr) {\n")
762 out_java_enum += ("\t\tbindings." + struct_name + " raw_val = bindings." + struct_name + "_ref_from_ptr(ptr);\n")
763 java_hu_subclasses = ""
765 init_meth_jty_strs = {}
767 out_java += ("\tpublic static class " + struct_name + " {\n")
768 out_java += ("\t\tprivate " + struct_name + "() {}\n")
769 for var in variant_list:
770 out_java += ("\t\tpublic final static class " + var.var_name + " extends " + struct_name + " {\n")
771 java_hu_subclasses = java_hu_subclasses + "\tpublic final static class " + var.var_name + " extends " + java_hu_type + " {\n"
772 out_java_enum += ("\t\tif (raw_val.getClass() == bindings." + struct_name + "." + var.var_name + ".class) {\n")
773 out_java_enum += ("\t\t\treturn new " + var.var_name + "(ptr, (bindings." + struct_name + "." + var.var_name + ")raw_val);\n")
774 init_meth_jty_str = ""
775 init_meth_params = ""
778 for idx, field_ty in enumerate(var.fields):
779 out_java += ("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.arg_name + ";\n")
780 java_hu_subclasses = java_hu_subclasses + "\t\tpublic final " + field_ty.java_hu_ty + " " + field_ty.arg_name + ";\n"
781 if field_ty.to_hu_conv is not None:
782 hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.java_ty + " " + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
783 hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
784 hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
786 hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
787 init_meth_jty_str = init_meth_jty_str + field_ty.java_fn_ty_arg
789 init_meth_params = init_meth_params + ", "
790 init_meth_params = init_meth_params + field_ty.java_ty + " " + field_ty.arg_name
791 init_meth_body = init_meth_body + "this." + field_ty.arg_name + " = " + field_ty.arg_name + "; "
792 out_java += ("\t\t\t" + var.var_name + "(" + init_meth_params + ") { ")
793 out_java += (init_meth_body)
795 out_java += ("\t\t}\n")
796 out_java_enum += ("\t\t}\n")
797 java_hu_subclasses = java_hu_subclasses + "\t\tprivate " + var.var_name + "(long ptr, bindings." + struct_name + "." + var.var_name + " obj) {\n\t\t\tsuper(null, ptr);\n"
798 java_hu_subclasses = java_hu_subclasses + hu_conv_body
799 java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t}\n"
800 init_meth_jty_strs[var.var_name] = init_meth_jty_str
801 out_java += ("\t\tstatic native void init();\n")
802 out_java += ("\t}\n")
803 out_java_enum += ("\t\tassert false; return null; // Unreachable without extending the (internal) bindings interface\n\t}\n\n")
804 out_java_enum += (java_hu_subclasses)
805 out_java += ("\tstatic { " + struct_name + ".init(); }\n")
806 out_java += ("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n");
808 out_c += (self.c_complex_enum_pfx(struct_name, [x.var_name for x in variant_list], init_meth_jty_strs))
810 out_c += (self.c_fn_ty_pfx + self.c_complex_enum_pass_ty(struct_name) + " " + self.c_fn_name_define_pfx(struct_name + "_ref_from_ptr", True) + self.ptr_c_ty + " ptr) {\n")
811 out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n")
812 out_c += ("\tswitch(obj->tag) {\n")
813 for var in variant_list:
814 out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
816 for idx, field_map in enumerate(var.fields):
817 if field_map.ret_conv is not None:
818 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
819 out_c += ("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
820 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
821 c_params.append(field_map.ret_conv_name)
823 c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
824 out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
826 out_c += ("\t\tdefault: abort();\n")
827 out_c += ("\t}\n}\n")
828 out_java_enum += ("}\n")
829 return (out_java, out_java_enum, out_c)
831 def map_opaque_struct(self, struct_name):
832 out_opaque_struct_human = ""
833 out_opaque_struct_human += self.hu_struct_file_prefix
834 out_opaque_struct_human += ("public class " + struct_name.replace("LDK","") + " extends CommonBase")
835 if struct_name.startswith("LDKLocked"):
836 out_opaque_struct_human += (" implements AutoCloseable")
837 out_opaque_struct_human += (" {\n")
838 out_opaque_struct_human += ("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n")
839 if struct_name.startswith("LDKLocked"):
840 out_opaque_struct_human += ("\t@Override public void close() {\n")
842 out_opaque_struct_human += ("\t@Override @SuppressWarnings(\"deprecation\")\n")
843 out_opaque_struct_human += ("\tprotected void finalize() throws Throwable {\n")
844 out_opaque_struct_human += ("\t\tsuper.finalize();\n")
845 out_opaque_struct_human += ("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); }\n")
846 out_opaque_struct_human += ("\t}\n\n")
847 return out_opaque_struct_human
850 def map_function(self, argument_types, c_call_string, method_name, return_type_info, struct_meth, default_constructor_args, takes_self, args_known, type_mapping_generator):
853 out_java_struct = None
855 out_java += ("\tpublic static native ")
856 out_c += (self.c_fn_ty_pfx)
857 out_c += (return_type_info.c_ty)
858 out_java += (return_type_info.java_ty)
859 if return_type_info.ret_conv is not None:
860 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
861 out_java += (" " + method_name + "(")
862 have_args = len(argument_types) > 1 or (len(argument_types) > 0 and argument_types[0].c_ty != "void")
863 out_c += (" " + self.c_fn_name_define_pfx(method_name, have_args))
865 for idx, arg_conv_info in enumerate(argument_types):
869 if arg_conv_info.c_ty != "void":
870 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
871 out_java += (arg_conv_info.java_ty + " " + arg_conv_info.arg_name)
875 out_java_struct += ("\t// Skipped " + method_name + "\n")
877 meth_n = method_name[len(struct_meth) + 1:]
880 "\tpublic static " + return_type_info.java_hu_ty + " constructor_" + meth_n + "(")
882 out_java_struct += ("\tpublic " + return_type_info.java_hu_ty + " " + meth_n + "(")
883 for idx, arg in enumerate(argument_types):
885 if not takes_self or idx > 1:
886 out_java_struct += (", ")
889 if arg.java_ty != "void":
890 if arg.arg_name in default_constructor_args:
891 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
893 out_java_struct += (", ")
895 explode_arg.java_hu_ty + " " + arg.arg_name + "_" + explode_arg.arg_name)
897 out_java_struct += (arg.java_hu_ty + " " + arg.arg_name)
900 if out_java_struct is not None:
901 out_java_struct += (") {\n")
902 for info in argument_types:
903 if info.arg_conv is not None:
904 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
905 if return_type_info.ret_conv is not None:
906 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
907 elif return_type_info.c_ty != "void":
908 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
911 if c_call_string is None:
912 out_c += (method_name + "(")
914 out_c += (c_call_string)
915 for idx, info in enumerate(argument_types):
916 if info.arg_conv_name is not None:
919 elif c_call_string is not None:
921 out_c += (info.arg_conv_name)
923 if return_type_info.ret_conv is not None:
924 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
927 for info in argument_types:
928 if info.arg_conv_cleanup is not None:
929 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
930 if return_type_info.ret_conv is not None:
931 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
932 elif return_type_info.c_ty != "void":
933 out_c += ("\n\treturn ret_val;")
937 out_java_struct += ("\t\t")
938 if return_type_info.java_ty != "void":
939 out_java_struct += (return_type_info.java_ty + " ret = ")
940 out_java_struct += ("bindings." + method_name + "(")
941 for idx, info in enumerate(argument_types):
943 out_java_struct += (", ")
944 if idx == 0 and takes_self:
945 out_java_struct += ("this.ptr")
946 elif info.arg_name in default_constructor_args:
947 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
948 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
950 out_java_struct += (", ")
951 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
952 if explode_arg.from_hu_conv is not None:
954 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
956 out_java_struct += (expl_arg_name)
957 out_java_struct += (")")
958 elif info.from_hu_conv is not None:
959 out_java_struct += (info.from_hu_conv[0])
961 out_java_struct += (info.arg_name)
962 out_java_struct += (");\n")
963 if return_type_info.to_hu_conv is not None:
965 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
966 return_type_info.to_hu_conv_name) + "\n")
968 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
970 for idx, info in enumerate(argument_types):
971 if idx == 0 and takes_self:
973 elif info.arg_name in default_constructor_args:
974 for explode_arg in default_constructor_args[info.arg_name]:
975 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
976 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
977 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
978 expl_arg_name).replace(
979 "this", return_type_info.to_hu_conv_name) + ";\n")
980 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
981 if not takes_self and return_type_info.to_hu_conv_name is not None:
983 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
985 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
987 if return_type_info.to_hu_conv_name is not None:
988 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
989 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
990 out_java_struct += ("\t\treturn ret;\n")
991 out_java_struct += ("\t}\n\n")
993 return (out_java, out_c, out_java_struct)