2 import os, sys, re, subprocess
5 print("USAGE: /path/to/lightning.h /path/to/bindings/output /path/to/bindings/ /path/to/bindings/output.c debug lang")
8 if sys.argv[5] == "false":
10 elif sys.argv[5] == "true":
13 print("debug should be true or false and indicates whether to track allocations and ensure we don't leak")
17 if sys.argv[6] == "java" or sys.argv[6] == "android":
19 from java_strings import Consts
20 target = java_strings.Target.JAVA
21 if sys.argv[6] == "android":
22 target = java_strings.Target.ANDROID
23 elif sys.argv[6] == "typescript":
24 import typescript_strings
25 from typescript_strings import Consts
26 target = typescript_strings.Target.NODEJS
27 if len(sys.argv) == 8 and sys.argv[7] == 'browser':
28 target = typescript_strings.Target.BROWSER
30 print("Only java or typescript can be set for lang")
34 consts = Consts(DEBUG, target=target)
36 local_git_version = os.getenv("LDK_GARBAGECOLLECTED_GIT_OVERRIDE")
37 if local_git_version is None:
38 local_git_version = subprocess.check_output(["git", "describe", '--tag', '--dirty']).decode("utf-8").strip()
40 from bindingstypes import *
47 def camel_to_snake(s):
48 # Convert camel case to snake case, in a way that appears to match cbindgen
54 if lastchar.isupper():
55 if not char.isupper() and not lastund:
60 ret = ret + lastchar.lower()
63 if char.isupper() and not lastund:
71 return (ret + lastchar.lower()).strip("_")
75 opaque_structs = set()
80 var_is_arr_regex = re.compile("\(\*([A-za-z0-9_]*)\)\[([a-z0-9]*)\]")
81 var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)")
82 java_c_types_none_allowed = True # Unset when we do the real pass that populates the above sets
83 def java_c_types(fn_arg, ret_arr_len):
84 fn_arg = fn_arg.strip()
85 if fn_arg.startswith("MUST_USE_RES "):
88 if fn_arg.startswith("const "):
91 if fn_arg.startswith("struct "):
93 if fn_arg.startswith("enum "):
95 nonnull_ptr = "NONNULL_PTR" in fn_arg
96 fn_arg = fn_arg.replace("NONNULL_PTR", "")
103 if fn_arg.startswith("LDKThirtyTwoBytes"):
104 fn_arg = "uint8_t (*" + fn_arg[18:] + ")[32]"
105 assert var_is_arr_regex.match(fn_arg[8:])
106 rust_obj = "LDKThirtyTwoBytes"
108 elif fn_arg.startswith("LDKTxid"):
109 fn_arg = "uint8_t (*" + fn_arg[8:] + ")[32]"
110 assert var_is_arr_regex.match(fn_arg[8:])
111 rust_obj = "LDKThirtyTwoBytes"
113 elif fn_arg.startswith("LDKPublicKey"):
114 fn_arg = "uint8_t (*" + fn_arg[13:] + ")[33]"
115 assert var_is_arr_regex.match(fn_arg[8:])
116 rust_obj = "LDKPublicKey"
117 arr_access = "compressed_form"
118 elif fn_arg.startswith("LDKSecretKey"):
119 fn_arg = "uint8_t (*" + fn_arg[13:] + ")[32]"
120 assert var_is_arr_regex.match(fn_arg[8:])
121 rust_obj = "LDKSecretKey"
123 elif fn_arg.startswith("LDKSignature"):
124 fn_arg = "uint8_t (*" + fn_arg[13:] + ")[64]"
125 assert var_is_arr_regex.match(fn_arg[8:])
126 rust_obj = "LDKSignature"
127 arr_access = "compact_form"
128 elif fn_arg.startswith("LDKRecoverableSignature"):
129 fn_arg = "uint8_t (*" + fn_arg[25:] + ")[68]"
130 assert var_is_arr_regex.match(fn_arg[8:])
131 rust_obj = "LDKRecoverableSignature"
132 arr_access = "serialized_form"
133 elif fn_arg.startswith("LDKThreeBytes"):
134 fn_arg = "uint8_t (*" + fn_arg[14:] + ")[3]"
135 assert var_is_arr_regex.match(fn_arg[8:])
136 rust_obj = "LDKThreeBytes"
138 elif fn_arg.startswith("LDKFourBytes"):
139 fn_arg = "uint8_t (*" + fn_arg[13:] + ")[4]"
140 assert var_is_arr_regex.match(fn_arg[8:])
141 rust_obj = "LDKFourBytes"
143 elif fn_arg.startswith("LDKSixteenBytes"):
144 fn_arg = "uint8_t (*" + fn_arg[16:] + ")[16]"
145 assert var_is_arr_regex.match(fn_arg[8:])
146 rust_obj = "LDKSixteenBytes"
148 elif fn_arg.startswith("LDKTwentyBytes"):
149 fn_arg = "uint8_t (*" + fn_arg[15:] + ")[20]"
150 assert var_is_arr_regex.match(fn_arg[8:])
151 rust_obj = "LDKTwentyBytes"
153 elif fn_arg.startswith("LDKTenBytes"):
154 fn_arg = "uint8_t (*" + fn_arg[12:] + ")[10]"
155 assert var_is_arr_regex.match(fn_arg[8:])
156 rust_obj = "LDKTenBytes"
158 elif fn_arg.startswith("LDKu8slice"):
159 fn_arg = "uint8_t (*" + fn_arg[11:] + ")[datalen]"
160 assert var_is_arr_regex.match(fn_arg[8:])
161 rust_obj = "LDKu8slice"
163 elif fn_arg.startswith("LDKCVec_u8Z"):
164 fn_arg = "uint8_t (*" + fn_arg[12:] + ")[datalen]"
165 rust_obj = "LDKCVec_u8Z"
166 assert var_is_arr_regex.match(fn_arg[8:])
168 elif fn_arg.startswith("LDKTransaction ") or fn_arg == "LDKTransaction":
169 fn_arg = "uint8_t (*" + fn_arg[15:] + ")[datalen]"
170 rust_obj = "LDKTransaction"
171 assert var_is_arr_regex.match(fn_arg[8:])
173 elif fn_arg.startswith("LDKCVec_"):
176 fn_arg = fn_arg.replace("*", "")
179 tyn = fn_arg[8:].split(" ")
180 assert tyn[0].endswith("Z")
184 new_arg = "LDK" + tyn[0][:-1]
186 new_arg = new_arg + " " + a
187 res = java_c_types(new_arg, ret_arr_len)
189 assert java_c_types_none_allowed
192 res.pass_by_ref = True
193 if res.is_native_primitive or res.passed_as_ptr:
194 return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=res.java_ty + "[]", java_hu_ty=res.java_hu_ty + "[]",
195 java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=res.c_ty + "Array", passed_as_ptr=False, is_ptr=is_ptr,
196 nonnull_ptr=nonnull_ptr, is_const=is_const,
197 var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False)
199 return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=res.java_ty + "[]", java_hu_ty=res.java_hu_ty + "[]",
200 java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=consts.ptr_arr, passed_as_ptr=False, is_ptr=is_ptr,
201 nonnull_ptr=nonnull_ptr, is_const=is_const,
202 var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False)
207 java_type_plural = None
208 if fn_arg.startswith("void"):
212 fn_arg = fn_arg[4:].strip()
214 elif fn_arg.startswith("bool"):
218 fn_arg = fn_arg[4:].strip()
220 elif fn_arg.startswith("uint8_t"):
221 mapped_type = consts.c_type_map['uint8_t']
222 java_ty = mapped_type[0]
225 fn_arg = fn_arg[7:].strip()
227 elif fn_arg.startswith("LDKu5"):
228 java_ty = consts.c_type_map['uint8_t'][0]
233 fn_arg = fn_arg[6:].strip()
234 elif fn_arg.startswith("uint16_t"):
235 mapped_type = consts.c_type_map['uint16_t']
236 java_ty = mapped_type[0]
239 fn_arg = fn_arg[8:].strip()
241 elif fn_arg.startswith("uint32_t"):
242 mapped_type = consts.c_type_map['uint32_t']
243 java_ty = mapped_type[0]
246 fn_arg = fn_arg[8:].strip()
248 elif fn_arg.startswith("uint64_t") or fn_arg.startswith("uintptr_t"):
249 # TODO: uintptr_t is arch-dependent :(
250 mapped_type = consts.c_type_map['uint64_t']
251 java_ty = mapped_type[0]
253 if fn_arg.startswith("uint64_t"):
255 fn_arg = fn_arg[8:].strip()
258 rust_obj = "uintptr_t"
259 fn_arg = fn_arg[9:].strip()
261 elif is_const and fn_arg.startswith("char *"):
264 fn_ty_arg = "Ljava/lang/String;"
265 fn_arg = fn_arg[6:].strip()
266 elif fn_arg.startswith("LDKStr"):
270 fn_ty_arg = "Ljava/lang/String;"
271 fn_arg = fn_arg[6:].strip()
275 ma = var_ty_regex.match(fn_arg)
276 if ma.group(1).strip() in unitary_enums:
277 assert ma.group(1).strip().startswith("LDK")
278 java_ty = ma.group(1).strip()[3:]
280 c_ty = consts.result_c_ty
281 fn_ty_arg = "Lorg/ldk/enums/" + java_ty + ";"
282 fn_arg = ma.group(2).strip()
283 rust_obj = ma.group(1).strip()
284 elif ma.group(1).strip().startswith("LDKC2Tuple"):
285 c_ty = consts.ptr_c_ty
286 java_ty = consts.ptr_native_ty
287 java_hu_ty = "TwoTuple<"
288 if not ma.group(1).strip() in tuple_types:
289 assert java_c_types_none_allowed
291 for idx, ty_info in enumerate(tuple_types[ma.group(1).strip()][0]):
293 java_hu_ty = java_hu_ty + ", "
294 if ty_info.is_native_primitive:
295 if ty_info.java_hu_ty == "int":
296 java_hu_ty = java_hu_ty + "Integer" # Java concrete integer type is Integer, not Int
298 java_hu_ty = java_hu_ty + ty_info.java_hu_ty.title() # If we're a primitive, capitalize the first letter
300 java_hu_ty = java_hu_ty + ty_info.java_hu_ty
301 java_hu_ty = java_hu_ty + ">"
303 fn_arg = ma.group(2).strip()
304 rust_obj = ma.group(1).strip()
306 elif ma.group(1).strip().startswith("LDKC3Tuple"):
307 c_ty = consts.ptr_c_ty
308 java_ty = consts.ptr_native_ty
309 java_hu_ty = "ThreeTuple<"
310 if not ma.group(1).strip() in tuple_types:
311 assert java_c_types_none_allowed
313 for idx, ty_info in enumerate(tuple_types[ma.group(1).strip()][0]):
315 java_hu_ty = java_hu_ty + ", "
316 if ty_info.is_native_primitive:
317 if ty_info.java_hu_ty == "int":
318 java_hu_ty = java_hu_ty + "Integer" # Java concrete integer type is Integer, not Int
320 java_hu_ty = java_hu_ty + ty_info.java_hu_ty.title() # If we're a primitive, capitalize the first letter
322 java_hu_ty = java_hu_ty + ty_info.java_hu_ty
323 java_hu_ty = java_hu_ty + ">"
325 fn_arg = ma.group(2).strip()
326 rust_obj = ma.group(1).strip()
329 c_ty = consts.ptr_c_ty
330 java_ty = consts.ptr_native_ty
331 java_hu_ty = ma.group(1).strip().replace("LDKCOption", "Option").replace("LDKCResult", "Result").replace("LDK", "")
333 fn_arg = ma.group(2).strip()
334 rust_obj = ma.group(1).strip()
337 if fn_arg.startswith(" *") or fn_arg.startswith("*"):
338 fn_arg = fn_arg.replace("*", "").strip()
340 c_ty = consts.ptr_c_ty
341 java_ty = consts.ptr_native_ty
344 var_is_arr = var_is_arr_regex.match(fn_arg)
345 if var_is_arr is not None or ret_arr_len is not None:
346 assert(not take_by_ptr)
348 # is there a special case for plurals?
349 if len(mapped_type) == 2:
350 java_ty = mapped_type[1]
352 java_ty = java_ty + "[]"
353 c_ty = c_ty + "Array"
354 if var_is_arr is not None:
355 if var_is_arr.group(1) == "":
356 return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, is_const=is_const,
357 passed_as_ptr=False, is_ptr=False, nonnull_ptr=nonnull_ptr, var_name="arg",
358 arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False)
359 return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, is_const=is_const,
360 passed_as_ptr=False, is_ptr=False, nonnull_ptr=nonnull_ptr, var_name=var_is_arr.group(1),
361 arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False)
363 if java_hu_ty is None:
365 return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_hu_ty, java_fn_ty_arg=fn_ty_arg, c_ty=c_ty, passed_as_ptr=is_ptr or take_by_ptr,
366 is_const=is_const, is_ptr=is_ptr, nonnull_ptr=nonnull_ptr, var_name=fn_arg, arr_len=arr_len, arr_access=arr_access, is_native_primitive=is_primitive)
368 fn_ptr_regex = re.compile("^extern const ([A-Za-z_0-9\* ]*) \(\*(.*)\)\((.*)\);$")
369 fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[([0-9]*)\];$")
370 reg_fn_regex = re.compile("([A-Za-z_0-9\* ]* \*?)([a-zA-Z_0-9]*)\((.*)\);$")
374 from gen_type_mapping import TypeMappingGenerator
375 type_mapping_generator = TypeMappingGenerator(java_c_types, consts, opaque_structs, clone_fns, unitary_enums, trait_structs, complex_enums, result_types, tuple_types)
377 with open(sys.argv[1]) as in_h:
379 reg_fn = reg_fn_regex.match(line)
380 if reg_fn is not None:
381 if reg_fn.group(2).endswith("_clone"):
382 clone_fns.add(reg_fn.group(2))
384 rty = java_c_types(reg_fn.group(1), None)
385 if rty is not None and not rty.is_native_primitive and reg_fn.group(2) == rty.java_hu_ty + "_new":
386 constructor_fns[rty.rust_obj] = reg_fn.group(3)
388 arr_fn = fn_ret_arr_regex.match(line)
389 if arr_fn is not None:
390 if arr_fn.group(2).endswith("_clone"):
391 clone_fns.add(arr_fn.group(2))
392 # No object constructors return arrays, as then they wouldn't be an object constructor
395 # Define some manual clones...
396 clone_fns.add("ThirtyTwoBytes_clone")
397 write_c("static inline struct LDKThirtyTwoBytes ThirtyTwoBytes_clone(const struct LDKThirtyTwoBytes *orig) { struct LDKThirtyTwoBytes ret; memcpy(ret.data, orig->data, 32); return ret; }\n")
399 java_c_types_none_allowed = False # C structs created by cbindgen are declared in dependency order
401 with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
402 util.write(consts.util_fn_pfx)
404 with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java:
405 # Map a top-level function
406 def map_fn(line, re_match, ret_arr_len, c_call_string, doc_comment):
407 method_return_type = re_match.group(1)
408 method_name = re_match.group(2)
409 orig_method_name = str(method_name)
410 method_comma_separated_arguments = re_match.group(3)
411 method_arguments = method_comma_separated_arguments.split(',')
413 is_free = method_name.endswith("_free")
414 if method_name.startswith("COption") or method_name.startswith("CResult"):
415 struct_meth = method_name.rsplit("Z", 1)[0][1:] + "Z"
417 struct_meth = method_name.split("_")[0]
419 return_type_info = type_mapping_generator.map_type(method_return_type.strip() + " ret", True, ret_arr_len, False, False)
422 default_constructor_args = {}
424 takes_self_ptr = False
427 for argument_index, argument in enumerate(method_arguments):
428 argument_conversion_info = type_mapping_generator.map_type(argument, False, None, is_free, True)
429 if argument_index == 0 and argument_conversion_info.java_hu_ty == struct_meth:
431 if argument_conversion_info.ty_info.is_ptr:
432 takes_self_ptr = True
433 if argument_conversion_info.arg_conv is not None and "Warning" in argument_conversion_info.arg_conv:
434 if argument_conversion_info.rust_obj in constructor_fns:
436 for explode_arg in constructor_fns[argument_conversion_info.rust_obj].split(','):
437 explode_arg_conv = type_mapping_generator.map_type(explode_arg, False, None, False, True)
438 if explode_arg_conv.c_ty == "void":
439 # We actually want to handle this case, but for now its only used in NetGraphMsgHandler::new()
440 # which ends up resulting in a redundant constructor - both without arguments for the NetworkGraph.
443 if not argument_conversion_info.arg_name in default_constructor_args:
444 default_constructor_args[argument_conversion_info.arg_name] = []
445 default_constructor_args[argument_conversion_info.arg_name].append(explode_arg_conv)
446 argument_types.append(argument_conversion_info)
447 if not takes_self and return_type_info.java_hu_ty != struct_meth:
448 if not return_type_info.java_hu_ty.startswith("Result_" + struct_meth):
449 method_name = orig_method_name
452 out_java.write("\t// " + line)
453 (out_java_delta, out_c_delta, out_java_struct_delta) = \
454 consts.map_function(argument_types, c_call_string, method_name, return_type_info, struct_meth, default_constructor_args, takes_self, takes_self_ptr, args_known, type_mapping_generator, doc_comment)
455 out_java.write(out_java_delta)
458 assert len(argument_types) == 1
459 assert return_type_info.c_ty == "void"
460 write_c(consts.c_fn_ty_pfx + "void " + consts.c_fn_name_define_pfx(method_name, True) + argument_types[0].c_ty + " " + argument_types[0].ty_info.var_name + ") {\n")
461 if argument_types[0].ty_info.passed_as_ptr and not argument_types[0].ty_info.rust_obj in opaque_structs:
462 write_c("\tif ((" + argument_types[0].ty_info.var_name + " & 1) != 0) return;\n")
464 for info in argument_types:
465 if info.arg_conv is not None:
466 write_c("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
467 assert c_call_string is None
468 write_c("\t" + method_name + "(")
469 if argument_types[0].arg_conv_name is not None:
470 write_c(argument_types[0].arg_conv_name)
472 for info in argument_types:
473 if info.arg_conv_cleanup is not None:
474 write_c("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
479 out_java_struct = None
480 expected_struct = "LDK" + struct_meth
481 expected_cstruct = "LDKC" + struct_meth
482 if (expected_struct in opaque_structs or expected_struct in trait_structs
483 or expected_struct in complex_enums or expected_cstruct in complex_enums
484 or expected_cstruct in result_types) and not is_free:
485 out_java_struct = open(f"{sys.argv[3]}/structs/{struct_meth}{consts.file_ext}", "a")
486 out_java_struct.write(out_java_struct_delta)
487 elif (not is_free and not method_name.endswith("_clone") and
488 not method_name.startswith("_") and
489 method_name != "check_platform" and method_name != "Result_read" and
490 not expected_struct in unitary_enums and
491 ((not method_name.startswith("C2Tuple_") and not method_name.startswith("C3Tuple_"))
492 or method_name.endswith("_read"))):
493 out_java_struct = open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a")
494 for line in out_java_struct_delta.splitlines():
495 if not line.strip().startswith("this."):
496 out_java_struct.write(line + "\n")
498 out_java_struct.write("\t\t// " + line.strip() + "\n")
500 def map_unitary_enum(struct_name, field_lines, enum_doc_comment):
501 assert struct_name.startswith("LDK")
502 with open(f"{sys.argv[3]}/enums/{struct_name[3:]}{consts.file_ext}", "w") as out_java_enum:
503 unitary_enums.add(struct_name)
504 for idx, struct_line in enumerate(field_lines):
506 assert(struct_line == "typedef enum %s {" % struct_name)
507 elif idx == len(field_lines) - 3:
508 assert(struct_line.endswith("_Sentinel,"))
509 elif idx == len(field_lines) - 2:
510 assert(struct_line == "} %s;" % struct_name)
511 elif idx == len(field_lines) - 1:
512 assert(struct_line == "")
513 assert struct_name.startswith("LDK")
514 (c_out, native_file_out, native_out) = consts.native_c_unitary_enum_map(struct_name[3:], [x.strip().strip(",") for x in field_lines[1:-3]], enum_doc_comment)
516 out_java_enum.write(native_file_out)
517 out_java.write(native_out)
519 def map_complex_enum(struct_name, union_enum_items, inline_enum_variants, enum_doc_comment):
520 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
521 complex_enums.add(struct_name)
524 tag_field_lines = union_enum_items["field_lines"]
525 for idx, struct_line in enumerate(tag_field_lines):
527 assert(struct_line == "typedef enum %s_Tag {" % struct_name)
528 elif idx == len(tag_field_lines) - 3:
529 assert(struct_line.endswith("_Sentinel,"))
530 elif idx == len(tag_field_lines) - 2:
531 assert(struct_line == "} %s_Tag;" % struct_name)
532 elif idx == len(tag_field_lines) - 1:
533 assert(struct_line == "")
535 variant_name = struct_line.strip(' ,')[len(struct_name) + 1:]
537 if "LDK" + variant_name in union_enum_items:
538 enum_var_lines = union_enum_items["LDK" + variant_name]
539 for idx, field in enumerate(enum_var_lines):
540 if idx != 0 and idx < len(enum_var_lines) - 2 and field.strip() != "":
541 fields.append(type_mapping_generator.map_type(field.strip(' ;'), False, None, False, True))
542 enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, False))
543 elif camel_to_snake(variant_name) in inline_enum_variants:
544 fields.append(type_mapping_generator.map_type(inline_enum_variants[camel_to_snake(variant_name)] + " " + camel_to_snake(variant_name), False, None, False, True))
545 enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, True))
547 enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, True))
549 with open(f"{sys.argv[3]}/structs/{java_hu_type}{consts.file_ext}", "w") as out_java_enum:
550 (out_java_addendum, out_java_enum_addendum, out_c_addendum) = consts.map_complex_enum(struct_name, enum_variants, camel_to_snake, enum_doc_comment)
552 out_java_enum.write(out_java_enum_addendum)
553 out_java.write(out_java_addendum)
554 write_c(out_c_addendum)
556 def map_trait(struct_name, field_var_lines, trait_fn_lines, trait_doc_comment):
557 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_trait:
559 flattened_field_var_convs = []
560 for var_line in field_var_lines:
561 if var_line.group(1) in trait_structs:
562 field_var_convs.append((var_line.group(1), var_line.group(2), trait_structs[var_line.group(1)]))
563 flattened_field_var_convs.append((var_line.group(1), var_line.group(2), ))
564 flattened_field_var_convs.extend(trait_structs[var_line.group(1)])
566 mapped = type_mapping_generator.map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False)
567 field_var_convs.append(mapped)
568 flattened_field_var_convs.append(mapped)
569 trait_structs[struct_name] = field_var_convs
572 for fn_docs, fn_line in trait_fn_lines:
573 if fn_line == "cloned":
574 ret_ty_info = type_mapping_generator.map_type("void", True, None, False, False)
575 field_fns.append(TraitMethInfo("cloned", False, ret_ty_info, [], fn_docs))
577 ret_ty_info = type_mapping_generator.map_type(fn_line.group(2).strip() + " ret", True, None, False, False)
578 is_const = fn_line.group(4) is not None
581 for idx, arg in enumerate(fn_line.group(5).split(',')):
584 arg_conv_info = type_mapping_generator.map_type(arg, True, None, False, False)
585 arg_tys.append(arg_conv_info)
586 field_fns.append(TraitMethInfo(fn_line.group(3), is_const, ret_ty_info, arg_tys, fn_docs))
588 (out_java_addendum, out_java_trait_addendum, out_c_addendum) = consts.native_c_map_trait(struct_name, field_var_convs, flattened_field_var_convs, field_fns, trait_doc_comment)
589 write_c(out_c_addendum)
590 out_java_trait.write(out_java_trait_addendum)
591 out_java.write(out_java_addendum)
593 for fn_docs, fn_line in trait_fn_lines:
594 if fn_line == "cloned":
596 # For now, just disable enabling the _call_log - we don't know how to inverse-map String
597 is_log = fn_line.group(3) == "log" and struct_name == "LDKLogger"
598 if fn_line.group(3) != "free" and fn_line.group(3) != "eq" and not is_log:
599 dummy_line = fn_line.group(2) + struct_name.replace("LDK", "") + "_" + fn_line.group(3) + " " + struct_name + " *NONNULL_PTR this_arg" + fn_line.group(5) + "\n"
600 map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, "(this_arg_conv->" + fn_line.group(3) + ")(this_arg_conv->this_arg", fn_docs)
601 for idx, var_line in enumerate(field_var_lines):
602 if var_line.group(1) not in trait_structs:
603 write_c(var_line.group(1) + " " + struct_name + "_set_get_" + var_line.group(2) + "(" + struct_name + "* this_arg) {\n")
604 write_c("\tif (this_arg->set_" + var_line.group(2) + " != NULL)\n")
605 write_c("\t\tthis_arg->set_" + var_line.group(2) + "(this_arg);\n")
606 write_c("\treturn this_arg->" + var_line.group(2) + ";\n")
608 dummy_line = var_line.group(1) + " " + struct_name.replace("LDK", "") + "_get_" + var_line.group(2) + " " + struct_name + " *NONNULL_PTR this_arg" + fn_line.group(5) + "\n"
609 map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, struct_name + "_set_get_" + var_line.group(2) + "(this_arg_conv", fn_docs)
611 def map_result(struct_name, res_ty, err_ty):
612 result_types.add(struct_name)
613 human_ty = struct_name.replace("LDKCResult", "Result")
614 with open(f"{sys.argv[3]}/structs/{human_ty}{consts.file_ext}", "w") as out_java_struct:
615 out_java_struct.write(consts.hu_struct_file_prefix)
616 out_java_struct.write("public class " + human_ty + " extends CommonBase {\n")
617 out_java_struct.write("\tprivate " + human_ty + "(Object _dummy, long ptr) { super(ptr); }\n")
618 out_java_struct.write("\tprotected void finalize() throws Throwable {\n")
619 out_java_struct.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n")
620 out_java_struct.write("\t}\n\n")
621 out_java_struct.write("\tstatic " + human_ty + " constr_from_ptr(long ptr) {\n")
622 out_java_struct.write("\t\tif (bindings." + struct_name + "_result_ok(ptr)) {\n")
623 out_java_struct.write("\t\t\treturn new " + human_ty + "_OK(null, ptr);\n")
624 out_java_struct.write("\t\t} else {\n")
625 out_java_struct.write("\t\t\treturn new " + human_ty + "_Err(null, ptr);\n")
626 out_java_struct.write("\t\t}\n")
627 out_java_struct.write("\t}\n")
629 res_map = type_mapping_generator.map_type(res_ty + " res", True, None, False, True)
630 err_map = type_mapping_generator.map_type(err_ty + " err", True, None, False, True)
632 if not res_map.is_native_primitive and (res_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns):
634 if not err_map.is_native_primitive and (err_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns):
637 out_java.write("\tpublic static native boolean " + struct_name + "_result_ok(long arg);\n")
638 write_c(consts.c_fn_ty_pfx + "jboolean " + consts.c_fn_name_define_pfx(struct_name + "_result_ok", True) + consts.ptr_c_ty + " arg) {\n")
639 write_c("\treturn ((" + struct_name + "*)arg)->result_ok;\n")
642 out_java.write("\tpublic static native " + res_map.java_ty + " " + struct_name + "_get_ok(long arg);\n")
643 write_c(consts.c_fn_ty_pfx + res_map.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_ok", True) + consts.ptr_c_ty + " arg) {\n")
644 write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\n")
645 write_c("\tCHECK(val->result_ok);\n\t")
646 out_java_struct.write("\tpublic static final class " + human_ty + "_OK extends " + human_ty + " {\n")
647 if res_map.ret_conv is not None:
648 write_c(res_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.result)")
649 write_c(res_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + res_map.ret_conv_name)
651 write_c("return *val->contents.result")
654 if res_map.java_hu_ty != "void":
655 out_java_struct.write("\t\tpublic final " + res_map.java_hu_ty + " res;\n")
656 out_java_struct.write("\t\tprivate " + human_ty + "_OK(Object _dummy, long ptr) {\n")
657 out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n")
658 if res_map.java_hu_ty == "void":
660 elif res_map.to_hu_conv is not None:
661 out_java_struct.write("\t\t\t" + res_map.java_ty + " res = bindings." + struct_name + "_get_ok(ptr);\n")
662 out_java_struct.write("\t\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t\t"))
663 out_java_struct.write("\n\t\t\tthis.res = " + res_map.to_hu_conv_name + ";\n")
665 out_java_struct.write("\t\t\tthis.res = bindings." + struct_name + "_get_ok(ptr);\n")
666 out_java_struct.write("\t\t}\n")
667 out_java_struct.write("\t}\n\n")
669 out_java.write("\tpublic static native " + err_map.java_ty + " " + struct_name + "_get_err(long arg);\n")
670 write_c(consts.c_fn_ty_pfx + err_map.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_err", True) + consts.ptr_c_ty + " arg) {\n")
671 write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\n")
672 write_c("\tCHECK(!val->result_ok);\n\t")
673 out_java_struct.write("\tpublic static final class " + human_ty + "_Err extends " + human_ty + " {\n")
674 if err_map.ret_conv is not None:
675 write_c(err_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.err)")
676 write_c(err_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + err_map.ret_conv_name)
678 write_c("return *val->contents.err")
681 if err_map.java_hu_ty != "void":
682 out_java_struct.write("\t\tpublic final " + err_map.java_hu_ty + " err;\n")
683 out_java_struct.write("\t\tprivate " + human_ty + "_Err(Object _dummy, long ptr) {\n")
684 out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n")
685 if err_map.java_hu_ty == "void":
687 elif err_map.to_hu_conv is not None:
688 out_java_struct.write("\t\t\t" + err_map.java_ty + " err = bindings." + struct_name + "_get_err(ptr);\n")
689 out_java_struct.write("\t\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t\t"))
690 out_java_struct.write("\n\t\t\tthis.err = " + err_map.to_hu_conv_name + ";\n")
692 out_java_struct.write("\t\t\tthis.err = bindings." + struct_name + "_get_err(ptr);\n")
693 out_java_struct.write("\t\t}\n")
695 out_java_struct.write("\t}\n\n")
697 def map_tuple(struct_name, field_lines):
698 out_java.write("\tpublic static native long " + struct_name + "_new(")
699 write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_new", len(field_lines) > 3))
701 for idx, line in enumerate(field_lines):
702 if idx != 0 and idx < len(field_lines) - 2:
703 ty_info = java_c_types(line.strip(';'), None)
707 e = chr(ord('a') + idx - 1)
708 out_java.write(ty_info.java_ty + " " + e)
709 write_c(ty_info.c_ty + " " + e)
710 ty_list.append(ty_info)
711 tuple_types[struct_name] = (ty_list, struct_name)
712 out_java.write(");\n")
714 write_c("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
715 for idx, line in enumerate(field_lines):
716 if idx != 0 and idx < len(field_lines) - 2:
717 ty_info = type_mapping_generator.map_type(line.strip(';'), False, None, False, False)
718 e = chr(ord('a') + idx - 1)
719 if ty_info.arg_conv is not None:
720 write_c("\t" + ty_info.arg_conv.replace("\n", "\n\t"))
721 write_c("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n")
723 write_c("\tret->" + e + " = " + e + ";\n")
724 if ty_info.arg_conv_cleanup is not None:
725 write_c("\t//TODO: Really need to call " + ty_info.arg_conv_cleanup + " here\n")
726 write_c("\treturn (uint64_t)ret;\n")
729 for idx, ty_info in enumerate(ty_list):
730 e = chr(ord('a') + idx)
731 out_java.write("\tpublic static native " + ty_info.java_ty + " " + struct_name + "_get_" + e + "(long ptr);\n")
732 write_c(consts.c_fn_ty_pfx + ty_info.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_" + e, True) + consts.ptr_c_ty + " ptr) {\n")
733 write_c("\t" + struct_name + " *tuple = (" + struct_name + "*)(ptr & ~1);\n")
734 conv_info = type_mapping_generator.map_type_with_info(ty_info, False, None, False, True)
735 if conv_info.ret_conv is not None:
736 write_c("\t" + conv_info.ret_conv[0].replace("\n", "\n\t") + "tuple->" + e + conv_info.ret_conv[1].replace("\n", "\n\t") + "\n")
737 write_c("\treturn " + conv_info.ret_conv_name + ";\n")
739 write_c("\treturn tuple->" + e + ";\n")
742 out_java.write(consts.bindings_header.replace('<git_version_ldk_garbagecollected>', local_git_version))
744 with open(f"{sys.argv[3]}/structs/CommonBase{consts.file_ext}", "w") as out_java_struct:
745 out_java_struct.write(consts.common_base)
748 last_block_comment = None
751 const_val_regex = re.compile("^extern const ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$")
753 line_indicates_result_regex = re.compile("^ union (LDKCResult_[A-Za-z_0-9]*Ptr) contents;$")
754 line_indicates_vec_regex = re.compile("^ (struct |enum |union )?([A-Za-z_0-9]*) \*data;$")
755 line_indicates_opaque_regex = re.compile("^ bool is_owned;$")
756 line_indicates_trait_regex = re.compile("^ (struct |enum |union )?([A-Za-z_0-9]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$")
757 assert(line_indicates_trait_regex.match(" uintptr_t (*send_data)(void *this_arg, LDKu8slice data, bool resume_read);"))
758 assert(line_indicates_trait_regex.match(" struct LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);"))
759 assert(line_indicates_trait_regex.match(" struct LDKCVec_u8Z (*write)(const void *this_arg);"))
760 line_indicates_trait_clone_regex = re.compile("^ void \(\*cloned\)\(struct ([A-Za-z0-9])* \*NONNULL_PTR new_[A-Za-z0-9]*\);$")
761 assert(line_indicates_trait_clone_regex.match(" void (*cloned)(struct LDKSign *NONNULL_PTR new_Sign);"))
762 line_field_var_regex = re.compile("^ struct ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$")
763 assert(line_field_var_regex.match(" struct LDKMessageSendEventsProvider MessageSendEventsProvider;"))
764 assert(line_field_var_regex.match(" struct LDKChannelPublicKeys pubkeys;"))
765 struct_name_regex = re.compile("^typedef (struct|enum|union) (MUST_USE_STRUCT )?(LDK[A-Za-z_0-9]*) {$")
766 assert(struct_name_regex.match("typedef struct LDKCVec_u8Z {"))
767 assert(struct_name_regex.match("typedef enum LDKNetwork {"))
769 union_enum_items = {}
770 result_ptr_struct_items = {}
772 if block_comment is not None:
773 if line.endswith("*/\n"):
774 last_block_comment = block_comment.strip("\n")
777 block_comment = block_comment + line.strip(" /*")
778 elif cur_block_obj is not None:
779 cur_block_obj = cur_block_obj + line
780 if line.startswith("} "):
784 obj_lines = cur_block_obj.split("\n")
786 result_contents = None
787 is_unitary_enum = False
788 is_union_enum = False
794 for idx, struct_line in enumerate(obj_lines):
795 if struct_line.strip().startswith("/*"):
796 block_comment = struct_line.strip(" /*")
797 if block_comment is not None:
798 if struct_line.endswith("*/"):
799 last_struct_block_comment = block_comment.strip("\n")
802 block_comment = block_comment + "\n" + struct_line.strip(" /*")
804 struct_name_match = struct_name_regex.match(struct_line)
805 if struct_name_match is not None:
806 struct_name = struct_name_match.group(3)
807 if struct_name_match.group(1) == "enum":
808 if not struct_name.endswith("_Tag"):
809 is_unitary_enum = True
812 elif struct_name_match.group(1) == "union":
814 if line_indicates_opaque_regex.match(struct_line):
816 result_match = line_indicates_result_regex.match(struct_line)
817 if result_match is not None:
818 result_contents = result_match.group(1)
819 vec_ty_match = line_indicates_vec_regex.match(struct_line)
820 if vec_ty_match is not None and struct_name.startswith("LDKCVec_"):
821 vec_ty = vec_ty_match.group(2)
822 elif struct_name.startswith("LDKC2Tuple_") or struct_name.startswith("LDKC3Tuple_"):
824 trait_fn_match = line_indicates_trait_regex.match(struct_line)
825 if trait_fn_match is not None:
826 trait_fn_lines.append((last_struct_block_comment, trait_fn_match))
827 trait_clone_fn_match = line_indicates_trait_clone_regex.match(struct_line)
828 if trait_clone_fn_match is not None:
829 trait_fn_lines.append((last_struct_block_comment, "cloned"))
830 field_var_match = line_field_var_regex.match(struct_line)
831 if field_var_match is not None:
832 field_var_lines.append(field_var_match)
833 field_lines.append(struct_line)
835 assert(struct_name is not None)
836 assert(len(trait_fn_lines) == 0 or not (is_opaque or is_unitary_enum or is_union_enum or is_union or result_contents is not None or vec_ty is not None))
837 assert(not is_opaque or not (len(trait_fn_lines) != 0 or is_unitary_enum or is_union_enum or is_union or result_contents is not None or vec_ty is not None))
838 assert(not is_unitary_enum or not (len(trait_fn_lines) != 0 or is_opaque or is_union_enum or is_union or result_contents is not None or vec_ty is not None))
839 assert(not is_union_enum or not (len(trait_fn_lines) != 0 or is_unitary_enum or is_opaque or is_union or result_contents is not None or vec_ty is not None))
840 assert(not is_union or not (len(trait_fn_lines) != 0 or is_unitary_enum or is_union_enum or is_opaque or result_contents is not None or vec_ty is not None))
841 assert(result_contents is None or not (len(trait_fn_lines) != 0 or is_unitary_enum or is_union_enum or is_opaque or is_union or vec_ty is not None))
842 assert(vec_ty is None or not (len(trait_fn_lines) != 0 or is_unitary_enum or is_union_enum or is_opaque or is_union or result_contents is not None))
845 opaque_structs.add(struct_name)
846 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_struct:
847 out_opaque_struct_human = consts.map_opaque_struct(struct_name, last_block_comment)
848 last_block_comment = None
849 out_java_struct.write(out_opaque_struct_human)
850 elif result_contents is not None:
851 assert result_contents in result_ptr_struct_items
852 res_ty, err_ty = result_ptr_struct_items[result_contents]
853 map_result(struct_name, res_ty, err_ty)
854 elif struct_name.startswith("LDKCResult_") and struct_name.endswith("ZPtr"):
855 for line in field_lines:
856 if line.endswith("*result;"):
857 res_ty = line[:-8].strip()
858 elif line.endswith("*err;"):
859 err_ty = line[:-5].strip()
860 result_ptr_struct_items[struct_name] = (res_ty, err_ty)
861 result_types.add(struct_name[:-3])
863 map_tuple(struct_name, field_lines)
864 elif vec_ty is not None:
865 ty_info = type_mapping_generator.map_type(vec_ty + " arr_elem", False, None, False, False)
866 if len(ty_info.java_fn_ty_arg) == 1: # ie we're a primitive of some form
867 out_java.write("\tpublic static native long " + struct_name + "_new(" + ty_info.java_ty + "[] elems);\n")
868 write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_new", True) + ty_info.c_ty + "Array elems) {\n")
869 write_c("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
870 write_c("\tret->datalen = " + consts.get_native_arr_len_call[0] + "elems" + consts.get_native_arr_len_call[1] + ";\n")
871 write_c("\tif (ret->datalen == 0) {\n")
872 write_c("\t\tret->data = NULL;\n")
873 write_c("\t} else {\n")
874 write_c("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n")
875 native_arr_ptr_call = consts.get_native_arr_ptr_call(ty_info.ty_info)
876 write_c("\t\t" + ty_info.c_ty + " *java_elems = " + native_arr_ptr_call[0] + "elems" + native_arr_ptr_call[1] + ";\n")
877 write_c("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n")
878 if ty_info.arg_conv is not None:
879 write_c("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n")
880 write_c("\t\t\t" + ty_info.arg_conv.replace("\n", "\n\t\t\t") + "\n")
881 write_c("\t\t\tret->data[i] = " + ty_info.arg_conv_name + ";\n")
882 assert ty_info.arg_conv_cleanup is None
884 write_c("\t\t\tret->data[i] = java_elems[i];\n")
886 cleanup = consts.release_native_arr_ptr_call(ty_info.ty_info, "elems", "java_elems")
887 if cleanup is not None:
888 write_c("\t\t" + cleanup + ";\n")
890 write_c("\treturn (uint64_t)ret;\n")
893 if ty_info.is_native_primitive:
894 clone_fns.add(struct_name.replace("LDK", "") + "_clone")
895 write_c("static inline " + struct_name + " " + struct_name.replace("LDK", "") + "_clone(const " + struct_name + " *orig) {\n")
896 write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.c_ty + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n")
897 write_c("\tmemcpy(ret.data, orig->data, sizeof(" + ty_info.c_ty + ") * ret.datalen);\n")
898 write_c("\treturn ret;\n}\n")
899 elif (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
900 ty_name = "CVec_" + ty_info.rust_obj.replace("LDK", "") + "Z";
901 clone_fns.add(ty_name + "_clone")
902 write_c("static inline " + struct_name + " " + ty_name + "_clone(const " + struct_name + " *orig) {\n")
903 write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.rust_obj + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n")
904 write_c("\tfor (size_t i = 0; i < ret.datalen; i++) {\n")
905 write_c("\t\tret.data[i] = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&orig->data[i]);\n")
906 write_c("\t}\n\treturn ret;\n}\n")
908 assert(struct_name.endswith("_Tag"))
909 struct_name = struct_name[:-4]
910 union_enum_items[struct_name] = {"field_lines": field_lines}
911 elif struct_name.endswith("_Body") and struct_name.split("_")[0] in union_enum_items:
912 enum_var_name = struct_name.split("_")
913 union_enum_items[enum_var_name[0]][enum_var_name[1]] = field_lines
914 elif struct_name in union_enum_items:
917 for line in field_lines:
918 if line == " struct {":
922 elif elem_items > -1:
924 if line.startswith("struct "):
926 elif line.startswith("enum "):
928 split = line.split(" ")
929 assert len(split) == 2
930 tuple_variants[split[1].strip(";")] = split[0]
933 # We don't currently support tuple variant with more than one element
935 map_complex_enum(struct_name, union_enum_items[struct_name], tuple_variants, last_block_comment)
936 last_block_comment = None
937 elif is_unitary_enum:
938 map_unitary_enum(struct_name, field_lines, last_block_comment)
939 last_block_comment = None
940 elif len(trait_fn_lines) > 0:
941 map_trait(struct_name, field_var_lines, trait_fn_lines, last_block_comment)
942 elif struct_name == "LDKTxOut":
943 with open(f"{sys.argv[3]}/structs/TxOut{consts.file_ext}", "w") as out_java_struct:
944 out_java_struct.write(consts.hu_struct_file_prefix)
945 out_java_struct.write("public class TxOut extends CommonBase{\n")
946 out_java_struct.write("\tTxOut(java.lang.Object _dummy, long ptr) { super(ptr); }\n")
947 out_java_struct.write("\tlong to_c_ptr() { return 0; }\n")
948 out_java_struct.write("\t@Override @SuppressWarnings(\"deprecation\")\n")
949 out_java_struct.write("\tprotected void finalize() throws Throwable {\n")
950 out_java_struct.write("\t\tsuper.finalize();\n")
951 out_java_struct.write("\t\tif (ptr != 0) { bindings.TxOut_free(ptr); }\n")
952 out_java_struct.write("\t}\n")
954 out_java_struct.write("}")
956 pass # Everything remaining is a byte[] or some form
959 fn_ptr = fn_ptr_regex.match(line)
960 fn_ret_arr = fn_ret_arr_regex.match(line)
961 reg_fn = reg_fn_regex.match(line)
962 const_val = const_val_regex.match(line)
964 if line.startswith("#include <"):
966 elif line.startswith("/*"):
967 if not line.endswith("*/\n"):
968 block_comment = line.strip(" /*")
969 elif line.startswith("typedef enum "):
971 elif line.startswith("typedef struct "):
973 elif line.startswith("typedef union "):
975 elif fn_ptr is not None:
976 map_fn(line, fn_ptr, None, None, last_block_comment)
977 last_block_comment = None
978 elif fn_ret_arr is not None:
979 map_fn(line, fn_ret_arr, fn_ret_arr.group(4), None, last_block_comment)
980 last_block_comment = None
981 elif reg_fn is not None:
982 map_fn(line, reg_fn, None, None, last_block_comment)
983 last_block_comment = None
984 elif const_val_regex is not None:
985 # TODO Map const variables
990 out_java.write(consts.bindings_footer)
991 for struct_name in opaque_structs:
992 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct:
993 out_java_struct.write("}\n")
994 for struct_name in trait_structs:
995 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct:
996 out_java_struct.write("}\n")
997 for struct_name in complex_enums:
998 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '').replace('COption', 'Option')}{consts.file_ext}", "a") as out_java_struct:
999 out_java_struct.write("}\n")
1000 for struct_name in result_types:
1001 with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDKCResult', 'Result')}{consts.file_ext}", "a") as out_java_struct:
1002 out_java_struct.write("}\n")
1004 with open(sys.argv[4], "w") as out_c:
1005 out_c.write(consts.c_file_pfx.replace('<git_version_ldk_garbagecollected>', local_git_version))
1006 out_c.write(consts.init_str())
1008 with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
1009 util.write(consts.util_fn_sfx)