X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=genbindings.py;h=2d69168ef89fef95411b4a608a9120c7e2cb323e;hb=1ef2dc8b8a3e0e244ad82ac08e286df489eca4b7;hp=9f7e136980d1e2787563e2476c79a3a4c737e64e;hpb=71687f75fe56a9e3fee27742ad4d000876fcdbb3;p=ldk-java diff --git a/genbindings.py b/genbindings.py index 9f7e1369..2d69168e 100755 --- a/genbindings.py +++ b/genbindings.py @@ -1,119 +1,1042 @@ #!/usr/bin/env python3 -import sys, re +import os, sys, re, subprocess -if len(sys.argv) != 3: - print("USAGE: /path/to/lightning.h /path/to/bindings.java") +if len(sys.argv) < 7: + print("USAGE: /path/to/lightning.h /path/to/bindings/output /path/to/bindings/ /path/to/bindings/output.c debug lang") sys.exit(1) -with open(sys.argv[1]) as f, open(sys.argv[2], "w") as out_f: - var_is_arr_regex = re.compile("\(\*([A-za-z_]*)\)\[[0-9]*\]"); - def map_type(fn_arg, print_void): - fn_arg = fn_arg.strip() - if fn_arg.startswith("MUST_USE_RES "): - fn_arg = fn_arg[13:] - if fn_arg.startswith("const "): - fn_arg = fn_arg[6:] - if fn_arg.startswith("void"): - if print_void: - out_f.write("void") +if sys.argv[5] == "false": + DEBUG = False +elif sys.argv[5] == "true": + DEBUG = True +else: + print("debug should be true or false and indicates whether to track allocations and ensure we don't leak") + sys.exit(1) + +target = None +if sys.argv[6] == "java" or sys.argv[6] == "android": + import java_strings + from java_strings import Consts + target = java_strings.Target.JAVA + if sys.argv[6] == "android": + target = java_strings.Target.ANDROID +elif sys.argv[6] == "typescript": + import typescript_strings + from typescript_strings import Consts + target = typescript_strings.Target.NODEJS + if len(sys.argv) == 8 and sys.argv[7] == 'browser': + target = typescript_strings.Target.BROWSER +else: + print("Only java or typescript can be set for lang") + sys.exit(1) + + +consts = Consts(DEBUG, target=target, outdir=sys.argv[4]) + +local_git_version = os.getenv("LDK_GARBAGECOLLECTED_GIT_OVERRIDE") +if local_git_version is None: + local_git_version = subprocess.check_output(["git", "describe", '--tag', '--dirty']).decode("utf-8").strip() + +from bindingstypes import * + +c_file = "" +def write_c(s): + global c_file + c_file += s + +def camel_to_snake(s): + # Convert camel case to snake case, in a way that appears to match cbindgen + con = "_" + ret = "" + lastchar = "" + lastund = False + for char in s: + if lastchar.isupper(): + if not char.isupper() and not lastund: + ret = ret + "_" + lastund = True + else: + lastund = False + ret = ret + lastchar.lower() + else: + ret = ret + lastchar + if char.isupper() and not lastund: + ret = ret + "_" + lastund = True else: - return - fn_arg = fn_arg.strip("void ") - elif fn_arg.startswith("bool"): - out_f.write("boolean") - fn_arg = fn_arg.strip("bool ") - elif fn_arg.startswith("uint8_t"): - out_f.write("byte") - fn_arg = fn_arg.strip("uint8_t ") - elif fn_arg.startswith("uint32_t"): - out_f.write("int") - fn_arg = fn_arg.strip("uint32_t ") - elif fn_arg.startswith("uint64_t"): - out_f.write("long") - fn_arg = fn_arg.strip("uint64_t ") + lastund = False + lastchar = char + if char.isnumeric(): + lastund = True + return (ret + lastchar.lower()).strip("_") + +def doc_to_field_nullable(doc): + if doc is None: + return False + for line in doc.splitlines(): + if "Note that this (or a relevant inner pointer) may be NULL or all-0s to represent None" in line: + return True + return False + +def doc_to_params_ret_nullable(doc): + if doc is None: + return (set(), False) + params = set() + ret_null = False + for line in doc.splitlines(): + if "may be NULL or all-0s to represent None" not in line: + continue + if "Note that the return value" in line: + ret_null = True + elif "Note that " in line: + param = line.split("Note that ")[1].split(" ")[0] + params.add(param) + return (params, ret_null) + +unitary_enums = set() +# Map from enum name to "contains trait object" +complex_enums = {} +opaque_structs = set() +trait_structs = {} +result_types = set() +tuple_types = {} + +var_is_arr_regex = re.compile("\(\* ?([A-za-z0-9_]*)\)\[([a-z0-9]*)\]") +var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)") +java_c_types_none_allowed = True # Unset when we do the real pass that populates the above sets +def java_c_types(fn_arg, ret_arr_len): + fn_arg = fn_arg.strip() + if fn_arg.startswith("MUST_USE_RES "): + fn_arg = fn_arg[13:] + is_const = False + if fn_arg.startswith("const "): + fn_arg = fn_arg[6:] + is_const = True + if fn_arg.startswith("struct "): + fn_arg = fn_arg[7:] + if fn_arg.startswith("enum "): + fn_arg = fn_arg[5:] + nonnull_ptr = "NONNULL_PTR" in fn_arg + fn_arg = fn_arg.replace("NONNULL_PTR", "") + + is_ptr = False + take_by_ptr = False + rust_obj = None + arr_access = None + java_hu_ty = None + if fn_arg.startswith("LDKPaymentPreimage") or fn_arg.startswith("LDKPaymentSecret") or fn_arg.startswith("LDKPaymentHash"): + if fn_arg.startswith("LDKPaymentPreimage"): + fn_arg = "uint8_t (*" + fn_arg[19:] + ")[32]" + elif fn_arg.startswith("LDKPaymentSecret"): + fn_arg = "uint8_t (*" + fn_arg[17:] + ")[32]" + elif fn_arg.startswith("LDKPaymentHash"): + fn_arg = "uint8_t (*" + fn_arg[15:] + ")[32]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKThirtyTwoBytes" + arr_access = "data" + elif fn_arg.startswith("LDKThirtyTwoBytes"): + fn_arg = "uint8_t (*" + fn_arg[18:] + ")[32]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKThirtyTwoBytes" + arr_access = "data" + elif fn_arg.startswith("LDKTxid"): + fn_arg = "uint8_t (*" + fn_arg[8:] + ")[32]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKThirtyTwoBytes" + arr_access = "data" + elif fn_arg.startswith("LDKPublicKey"): + fn_arg = "uint8_t (*" + fn_arg[13:] + ")[33]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKPublicKey" + arr_access = "compressed_form" + elif fn_arg.startswith("LDKSecretKey"): + fn_arg = "uint8_t (*" + fn_arg[13:] + ")[32]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKSecretKey" + arr_access = "bytes" + elif fn_arg.startswith("LDKSignature"): + fn_arg = "uint8_t (*" + fn_arg[13:] + ")[64]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKSignature" + arr_access = "compact_form" + elif fn_arg.startswith("LDKRecoverableSignature"): + fn_arg = "uint8_t (*" + fn_arg[24:] + ")[68]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKRecoverableSignature" + arr_access = "serialized_form" + elif fn_arg.startswith("LDKThreeBytes"): + fn_arg = "uint8_t (*" + fn_arg[14:] + ")[3]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKThreeBytes" + arr_access = "data" + elif fn_arg.startswith("LDKFourBytes"): + fn_arg = "uint8_t (*" + fn_arg[13:] + ")[4]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKFourBytes" + arr_access = "data" + elif fn_arg.startswith("LDKSixteenBytes"): + fn_arg = "uint8_t (*" + fn_arg[16:] + ")[16]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKSixteenBytes" + arr_access = "data" + elif fn_arg.startswith("LDKTwentyBytes"): + fn_arg = "uint8_t (*" + fn_arg[15:] + ")[20]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKTwentyBytes" + arr_access = "data" + elif fn_arg.startswith("LDKTwelveBytes"): + fn_arg = "uint8_t (*" + fn_arg[15:] + ")[12]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKTwelveBytes" + arr_access = "data" + elif fn_arg.startswith("LDKu8slice"): + fn_arg = "uint8_t (*" + fn_arg[11:] + ")[datalen]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKu8slice" + arr_access = "data" + elif fn_arg.startswith("LDKCVec_u8Z"): + fn_arg = "uint8_t (*" + fn_arg[12:] + ")[datalen]" + rust_obj = "LDKCVec_u8Z" + assert var_is_arr_regex.match(fn_arg[8:]) + arr_access = "data" + elif fn_arg.startswith("LDKTransaction ") or fn_arg == "LDKTransaction": + fn_arg = "uint8_t (*" + fn_arg[15:] + ")[datalen]" + rust_obj = "LDKTransaction" + assert var_is_arr_regex.match(fn_arg[8:]) + arr_access = "data" + elif fn_arg.startswith("LDKCVec_"): + is_ptr = False + if "*" in fn_arg: + fn_arg = fn_arg.replace("*", "") + is_ptr = True + + tyn = fn_arg[8:].split(" ") + assert tyn[0].endswith("Z") + if tyn[0] == "u64Z": + new_arg = "uint64_t" else: - out_f.write("long") - fn_arg = "".join([e + " " for e in fn_arg.split(" ")[1:]]).strip() - var_is_arr = var_is_arr_regex.match(fn_arg) + new_arg = "LDK" + tyn[0][:-1] + for a in tyn[1:]: + new_arg = new_arg + " " + a + res = java_c_types(new_arg, ret_arr_len) + if res is None: + assert java_c_types_none_allowed + return None + if is_ptr: + res.pass_by_ref = True + java_ty = consts.java_arr_ty_str(res.java_ty) + if res.is_native_primitive or res.passed_as_ptr: + return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=java_ty, java_hu_ty=res.java_hu_ty + "[]", + java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=res.c_ty + "Array", passed_as_ptr=False, is_ptr=is_ptr, + nonnull_ptr=nonnull_ptr, is_const=is_const, + var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False) + else: + return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=java_ty, java_hu_ty=res.java_hu_ty + "[]", + java_fn_ty_arg="[" + res.java_fn_ty_arg, c_ty=consts.ptr_arr, passed_as_ptr=False, is_ptr=is_ptr, + nonnull_ptr=nonnull_ptr, is_const=is_const, + var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False) + + is_primitive = False + contains_trait = False + arr_len = None + mapped_type = [] + java_type_plural = None + arr_ty = None + if fn_arg.startswith("void"): + java_ty = "void" + c_ty = "void" + fn_ty_arg = "V" + fn_arg = fn_arg[4:].strip() + is_primitive = True + elif fn_arg.startswith("bool"): + java_ty = "boolean" + c_ty = "jboolean" + fn_ty_arg = "Z" + arr_ty = "bool" + fn_arg = fn_arg[4:].strip() + is_primitive = True + elif fn_arg.startswith("uint8_t"): + mapped_type = consts.c_type_map['uint8_t'] + java_ty = mapped_type[0] + c_ty = "int8_t" + fn_ty_arg = "B" + arr_ty = "uint8_t" + fn_arg = fn_arg[7:].strip() + is_primitive = True + elif fn_arg.startswith("LDKu5"): + java_ty = consts.c_type_map['uint8_t'][0] + java_hu_ty = "UInt5" + rust_obj = "LDKu5" + c_ty = "int8_t" + arr_ty = "uint8_t" + fn_ty_arg = "B" + fn_arg = fn_arg[6:].strip() + elif fn_arg.startswith("uint16_t"): + mapped_type = consts.c_type_map['uint16_t'] + java_ty = mapped_type[0] + c_ty = "int16_t" + arr_ty = "uint16_t" + fn_ty_arg = "S" + fn_arg = fn_arg[8:].strip() + is_primitive = True + elif fn_arg.startswith("uint32_t"): + mapped_type = consts.c_type_map['uint32_t'] + java_ty = mapped_type[0] + c_ty = "int32_t" + arr_ty = "uint32_t" + fn_ty_arg = "I" + fn_arg = fn_arg[8:].strip() + is_primitive = True + elif fn_arg.startswith("uint64_t") or fn_arg.startswith("uintptr_t"): + # TODO: uintptr_t is arch-dependent :( + mapped_type = consts.c_type_map['uint64_t'] + java_ty = mapped_type[0] + fn_ty_arg = "J" + if fn_arg.startswith("uint64_t"): + c_ty = "int64_t" + arr_ty = "uint64_t" + fn_arg = fn_arg[8:].strip() + else: + java_ty = consts.ptr_native_ty + c_ty = consts.ptr_c_ty + arr_ty = "uintptr_t" + rust_obj = "uintptr_t" + fn_arg = fn_arg[9:].strip() + is_primitive = True + elif is_const and fn_arg.startswith("char *"): + java_ty = consts.java_type_map["String"] + java_hu_ty = consts.java_hu_type_map["String"] + c_ty = "const char*" + arr_ty = "LDKStr" + fn_ty_arg = "Ljava/lang/String;" + fn_arg = fn_arg[6:].strip() + elif fn_arg.startswith("LDKStr"): + rust_obj = "LDKStr" + arr_ty = "LDKStr" + java_ty = consts.java_type_map["String"] + java_hu_ty = consts.java_hu_type_map["String"] + c_ty = "jstring" + fn_ty_arg = "Ljava/lang/String;" + fn_arg = fn_arg[6:].strip() + arr_access = "chars" + arr_len = "len" + elif fn_arg.startswith("LDKError ") or fn_arg == "LDKError": + java_ty = consts.c_type_map['uint32_t'][0] + java_hu_ty = "UnqualifiedError" + rust_obj = "LDKError" + c_ty = "int32_t" + arr_ty = "uint32_t" + fn_ty_arg = "I" + fn_arg = fn_arg[8:].strip() + else: + ma = var_ty_regex.match(fn_arg) + arr_ty = ma.group(1).strip() + if ma.group(1).strip() in unitary_enums: + assert ma.group(1).strip().startswith("LDK") + java_ty = ma.group(1).strip()[3:] + java_hu_ty = java_ty + c_ty = consts.result_c_ty + fn_ty_arg = "Lorg/ldk/enums/" + java_ty + ";" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + else: + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty + java_hu_ty = ma.group(1).strip() + java_hu_ty = java_hu_ty.replace("LDKCOption", "Option") + java_hu_ty = java_hu_ty.replace("LDKCResult", "Result") + java_hu_ty = java_hu_ty.replace("LDKC2Tuple", "TwoTuple") + java_hu_ty = java_hu_ty.replace("LDKC3Tuple", "ThreeTuple") + java_hu_ty = java_hu_ty.replace("LDK", "") + fn_ty_arg = "J" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + if rust_obj in trait_structs: + contains_trait = True + elif rust_obj in complex_enums: + contains_trait = complex_enums[rust_obj] + take_by_ptr = True + + if fn_arg.startswith(" *") or fn_arg.startswith("*"): + fn_arg = fn_arg.replace("*", "").strip() + is_ptr = True + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty + fn_ty_arg = "J" + + var_is_arr = var_is_arr_regex.match(fn_arg) + subty = None + if var_is_arr is not None or ret_arr_len is not None: + assert(not take_by_ptr) + assert(not is_ptr) + # is there a special case for plurals? + if len(mapped_type) == 3: + java_ty = mapped_type[1] + java_hu_ty = mapped_type[2] + else: + java_ty = java_ty + "[]" + java_hu_ty = java_ty + c_ty = c_ty + "Array" + + subty = java_c_types(arr_ty, None) + if subty is None: + assert java_c_types_none_allowed + return None + if is_ptr: + subty.pass_by_ref = True + if var_is_arr is not None: - out_f.write("[] " + var_is_arr.group(1)) - elif fn_arg.strip() != "": - out_f.write(" " + fn_arg.replace('*', '').strip()) - elif not print_void: - out_f.write(" arg"); - - def map_fn_args(fn_args): - for idx, arg in enumerate(fn_args.split(',')): - if idx != 0: - out_f.write(", ") - map_type(arg, False) - - def map_fn(re_match, ret_ty_suffix): - out_f.write("\t/// " + line) - out_f.write("\tpublic static native ") - map_type(re_match.group(1), True) - out_f.write(ret_ty_suffix + " " + re_match.group(2).replace('_', '') + "(") - map_fn_args(re_match.group(3)) - out_f.write(");\n") - - out_f.write("""package org.ldk; - -public class bindings { - static { - System.loadLibrary(\"lightning\"); - } - -""") - - in_block_comment = False - in_block_enum = False - in_block_struct = False - in_block_union = False - - fn_ptr_regex = re.compile("^extern const ([A-Za-z_0-9\* ]*) \(\*(.*)\)\((.*)\);$") - fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[.*\];$") - reg_fn_regex = re.compile("([A-Za-z_0-9\* ]*) \*?([a-zA-Z_0-9]*)\((.*)\);$") - - for line in f: - if in_block_comment: - #out_f.write("\t" + line) + if var_is_arr.group(1) == "": + 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, is_const=is_const, + passed_as_ptr=False, is_ptr=False, nonnull_ptr=nonnull_ptr, var_name="arg", subty=subty, + arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False, contains_trait=contains_trait) + 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, is_const=is_const, + passed_as_ptr=False, is_ptr=False, nonnull_ptr=nonnull_ptr, var_name=var_is_arr.group(1), subty=subty, + arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False, contains_trait=contains_trait) + + if java_hu_ty is None: + java_hu_ty = java_ty + 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, + 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, + contains_trait=contains_trait, subty=subty) + +fn_ptr_regex = re.compile("^extern const ([A-Za-z_0-9\* ]*) \(\*(.*)\)\((.*)\);$") +fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[([0-9]*)\];$") +reg_fn_regex = re.compile("([A-Za-z_0-9\* ]* \*?)([a-zA-Z_0-9]*)\((.*)\);$") +clone_fns = set() +constructor_fns = {} + +from gen_type_mapping import TypeMappingGenerator +type_mapping_generator = TypeMappingGenerator(java_c_types, consts, opaque_structs, clone_fns, unitary_enums, trait_structs, complex_enums, result_types, tuple_types) + +with open(sys.argv[1]) as in_h: + for line in in_h: + reg_fn = reg_fn_regex.match(line) + if reg_fn is not None: + if reg_fn.group(2).endswith("_clone"): + clone_fns.add(reg_fn.group(2)) + else: + rty = java_c_types(reg_fn.group(1), None) + if rty is not None and not rty.is_native_primitive and reg_fn.group(2) == rty.java_hu_ty + "_new": + constructor_fns[rty.rust_obj] = reg_fn.group(3) + continue + arr_fn = fn_ret_arr_regex.match(line) + if arr_fn is not None: + if arr_fn.group(2).endswith("_clone"): + clone_fns.add(arr_fn.group(2)) + # No object constructors return arrays, as then they wouldn't be an object constructor + continue + +# Define some manual clones... +clone_fns.add("ThirtyTwoBytes_clone") +write_c("static inline struct LDKThirtyTwoBytes ThirtyTwoBytes_clone(const struct LDKThirtyTwoBytes *orig) { struct LDKThirtyTwoBytes ret; memcpy(ret.data, orig->data, 32); return ret; }\n") + +java_c_types_none_allowed = False # C structs created by cbindgen are declared in dependency order + +with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util: + util.write(consts.util_fn_pfx) + +with open(sys.argv[1]) as in_h, open(f"{sys.argv[2]}/bindings{consts.file_ext}", "w") as out_java: + # Map a top-level function + def map_fn(line, re_match, ret_arr_len, c_call_string, doc_comment): + map_fn_with_ref_option(line, re_match, ret_arr_len, c_call_string, doc_comment, False) + def map_fn_with_ref_option(line, re_match, ret_arr_len, c_call_string, doc_comment, force_holds_ref): + method_return_type = re_match.group(1) + method_name = re_match.group(2) + method_comma_separated_arguments = re_match.group(3) + method_arguments = method_comma_separated_arguments.split(',') + + if method_name.startswith("__"): + return + + is_free = method_name.endswith("_free") + if method_name.startswith("COption") or method_name.startswith("CResult"): + struct_meth = method_name.rsplit("Z", 1)[0][1:] + "Z" + expected_struct = "LDKC" + struct_meth + struct_meth_name = method_name[len(struct_meth) + 1:].strip("_") + elif method_name.startswith("C2Tuple") or method_name.startswith("C3Tuple"): + tuple_name = method_name.rsplit("Z", 1)[0][2:] + "Z" + if method_name.startswith("C2Tuple"): + struct_meth = "Two" + tuple_name + expected_struct = "LDKC2" + tuple_name + else: + struct_meth = "Three" + tuple_name + expected_struct = "LDKC3" + tuple_name + struct_meth_name = method_name[len(tuple_name) + 2:].strip("_") + else: + struct_meth = method_name.split("_")[0] + expected_struct = "LDK" + struct_meth + struct_meth_name = method_name[len(struct_meth) + 1 if len(struct_meth) != 0 else 0:].strip("_") + + (params_nullable, ret_nullable) = doc_to_params_ret_nullable(doc_comment) + if ret_nullable: + return_type_info = type_mapping_generator.map_nullable_type(method_return_type.strip() + " ret", True, ret_arr_len, False, force_holds_ref) + else: + return_type_info = type_mapping_generator.map_type(method_return_type.strip() + " ret", True, ret_arr_len, False, force_holds_ref) + + if method_name.endswith("_clone") and expected_struct not in unitary_enums: + meth_line = "uintptr_t " + expected_struct.replace("LDK", "") + "_clone_ptr(" + expected_struct + " *NONNULL_PTR arg)" + write_c("static inline " + meth_line + " {\n") + write_c("\t" + return_type_info.ret_conv[0].replace("\n", "\n\t")) + write_c(method_name + "(arg)") + write_c(return_type_info.ret_conv[1]) + write_c("\n\treturn " + return_type_info.ret_conv_name + ";\n}\n") + map_fn(meth_line + ";\n", re.compile("(uintptr_t) ([A-Za-z_0-9]*)\((.*)\)").match(meth_line), None, None, None) + + argument_types = [] + default_constructor_args = {} + takes_self = False + takes_self_ptr = False + args_known = True + + for argument_index, argument in enumerate(method_arguments): + arg_ty = type_mapping_generator.java_c_types(argument, None) + argument_conversion_info = None + if argument_index == 0 and arg_ty.java_hu_ty == struct_meth: + argument_conversion_info = type_mapping_generator.map_type_with_info(arg_ty, False, None, is_free, True, False) + takes_self = True + if argument_conversion_info.ty_info.is_ptr: + takes_self_ptr = True + elif arg_ty.var_name in params_nullable: + argument_conversion_info = type_mapping_generator.map_type_with_info(arg_ty, False, None, is_free, True, True) + if argument_conversion_info.arg_conv is not None and "WARNING" in argument_conversion_info.arg_conv: + arg_ty_info = java_c_types(argument, None) + print("WARNING: Remapping argument " + arg_ty_info.var_name + " of function " + method_name + " to a reference") + print(" The argument appears to require a move, or not clonable, and is nullable.") + print(" Normally for arguments that require a move and are not clonable, we split") + print(" the argument into the type's constructor's arguments and just use those to") + print(" construct a new object on the fly.") + print(" However, because the object is nullable, doing so would mean we can no") + print(" longer allow the user to pass null, as we now have an argument list instead.") + print(" Thus, we blindly assume its really an Option<&Type> instead of an Option.") + print(" It may or may not actually be a reference, but its the simplest mapping option") + print(" and also the only use of this code today.") + arg_ty_info.requires_clone = False + argument_conversion_info = type_mapping_generator.map_type_with_info(arg_ty_info, False, None, is_free, True, True) + assert argument_conversion_info.nullable + assert argument_conversion_info.arg_conv is not None and "WARNING" not in argument_conversion_info.arg_conv + else: + argument_conversion_info = type_mapping_generator.map_type_with_info(arg_ty, False, None, is_free, True, False) + + if argument_conversion_info.arg_conv is not None and "WARNING" in argument_conversion_info.arg_conv: + if argument_conversion_info.rust_obj in constructor_fns: + assert not is_free + for explode_arg in constructor_fns[argument_conversion_info.rust_obj].split(','): + explode_arg_conv = type_mapping_generator.map_type(explode_arg, False, None, False, True) + if explode_arg_conv.c_ty == "void": + # We actually want to handle this case, but for now its only used in NetGraphMsgHandler::new() + # which ends up resulting in a redundant constructor - both without arguments for the NetworkGraph. + args_known = False + pass + if not argument_conversion_info.arg_name in default_constructor_args: + default_constructor_args[argument_conversion_info.arg_name] = [] + default_constructor_args[argument_conversion_info.arg_name].append(explode_arg_conv) + argument_types.append(argument_conversion_info) + + if not takes_self and return_type_info.java_hu_ty != struct_meth: + if not return_type_info.java_hu_ty.startswith("Result_" + struct_meth): + struct_meth_name = method_name + struct_meth = "" + expected_struct = "" + + impl_on_struct = (expected_struct in opaque_structs or expected_struct in trait_structs or + expected_struct in complex_enums or expected_struct in complex_enums or + expected_struct in result_types or expected_struct in tuple_types) and not is_free + impl_on_utils = not impl_on_struct and (not is_free and not method_name.endswith("_clone") and + not method_name.startswith("TxOut") and + not method_name.startswith("_") and + method_name != "check_platform" and method_name != "Result_read" and + not expected_struct in unitary_enums and + ((not method_name.startswith("C2Tuple_") and not method_name.startswith("C3Tuple_")) + or method_name.endswith("_read"))) + + # If we're adding a static method, and it returns a primitive or an array of primitives, + # and a variable conversion adds a reference on the return type (via `this`), skip the + # variable's conversion reference-add (as we obviously cannot need a reference). + if impl_on_utils and (return_type_info.is_native_primitive or + (return_type_info.ty_info.subty is not None and return_type_info.ty_info.subty.is_native_primitive)): + for arg in argument_types: + if arg.from_hu_conv is not None and arg.from_hu_conv[1] != "": + if "this" in arg.from_hu_conv[1]: + arg.from_hu_conv = (arg.from_hu_conv[0], "") + + out_java.write("\t// " + line) + (out_java_delta, out_c_delta, out_java_struct_delta) = \ + consts.map_function(argument_types, c_call_string, method_name, struct_meth_name, return_type_info, struct_meth, default_constructor_args, takes_self, takes_self_ptr, args_known, type_mapping_generator, doc_comment) + out_java.write(out_java_delta) + + if is_free: + assert len(argument_types) == 1 + assert return_type_info.c_ty == "void" + 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") + if argument_types[0].ty_info.passed_as_ptr and not argument_types[0].ty_info.rust_obj in opaque_structs: + write_c("\tif ((" + argument_types[0].ty_info.var_name + " & 1) != 0) return;\n") + + for info in argument_types: + if info.arg_conv is not None: + write_c("\t" + info.arg_conv.replace('\n', "\n\t") + "\n") + assert c_call_string is None + write_c("\t" + method_name + "(") + if argument_types[0].arg_conv_name is not None: + write_c(argument_types[0].arg_conv_name) + write_c(");") + for info in argument_types: + if info.arg_conv_cleanup is not None: + write_c("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t")) + write_c("\n}\n\n") + else: + write_c(out_c_delta) + + out_java_struct = None + if impl_on_struct: + out_java_struct = open(f"{sys.argv[3]}/structs/{struct_meth}{consts.file_ext}", "a") + out_java_struct.write(out_java_struct_delta) + elif impl_on_utils: + out_java_struct = open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") + for line in out_java_struct_delta.splitlines(): + out_java_struct.write(line + "\n") + + def map_unitary_enum(struct_name, field_lines, enum_doc_comment): + assert struct_name.startswith("LDK") + with open(f"{sys.argv[3]}/enums/{struct_name[3:]}{consts.file_ext}", "w") as out_java_enum: + unitary_enums.add(struct_name) + for idx, (struct_line, _) in enumerate(field_lines): + if idx == 0: + assert(struct_line == "typedef enum %s {" % struct_name) + elif idx == len(field_lines) - 3: + assert(struct_line.endswith("_Sentinel,")) + elif idx == len(field_lines) - 2: + assert(struct_line == "} %s;" % struct_name) + elif idx == len(field_lines) - 1: + assert(struct_line == "") + assert struct_name.startswith("LDK") + (c_out, native_file_out, native_out) = consts.native_c_unitary_enum_map(struct_name[3:], [(x.strip().strip(","), y) for x, y in field_lines[1:-3]], enum_doc_comment) + write_c(c_out) + out_java_enum.write(native_file_out) + out_java.write(native_out) + + def map_complex_enum(struct_name, union_enum_items, inline_enum_variants, enum_doc_comment): + java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option") + + enum_variants = [] + tag_field_lines = union_enum_items["field_lines"] + contains_trait = False + for idx, (struct_line, variant_docs) in enumerate(tag_field_lines): + if idx == 0: + assert(struct_line == "typedef enum %s_Tag {" % struct_name) + elif idx == len(tag_field_lines) - 3: + assert(struct_line.endswith("_Sentinel,")) + elif idx == len(tag_field_lines) - 2: + assert(struct_line == "} %s_Tag;" % struct_name) + elif idx == len(tag_field_lines) - 1: + assert(struct_line == "") + else: + variant_name = struct_line.strip(' ,')[len(struct_name) + 1:] + fields = [] + if "LDK" + variant_name in union_enum_items: + enum_var_lines = union_enum_items["LDK" + variant_name] + for idx, (field, field_docs) in enumerate(enum_var_lines): + if idx != 0 and idx < len(enum_var_lines) - 2 and field.strip() != "": + field_ty = type_mapping_generator.java_c_types(field.strip(' ;'), None) + contains_trait |= field_ty.contains_trait + if field_docs is not None and doc_to_field_nullable(field_docs): + field_conv = type_mapping_generator.map_type_with_info(field_ty, False, None, False, True, True) + else: + field_conv = type_mapping_generator.map_type_with_info(field_ty, False, None, False, True, False) + fields.append((field_conv, field_docs)) + enum_variants.append(ComplexEnumVariantInfo(variant_name, variant_docs, fields, False)) + elif camel_to_snake(variant_name) in inline_enum_variants: + # TODO: If we ever have a rust enum Variant(Option) we need to pipe + # docs through to there, and then potentially mark the field nullable. + mapped = type_mapping_generator.map_type(inline_enum_variants[camel_to_snake(variant_name)] + " " + camel_to_snake(variant_name), False, None, False, True) + contains_trait |= mapped.ty_info.contains_trait + fields.append((mapped, None)) + enum_variants.append(ComplexEnumVariantInfo(variant_name, variant_docs, fields, True)) + else: + enum_variants.append(ComplexEnumVariantInfo(variant_name, variant_docs, fields, True)) + complex_enums[struct_name] = contains_trait + + with open(f"{sys.argv[3]}/structs/{java_hu_type}{consts.file_ext}", "w") as out_java_enum: + (out_java_addendum, out_java_enum_addendum, out_c_addendum) = consts.map_complex_enum(struct_name, enum_variants, camel_to_snake, enum_doc_comment) + + out_java_enum.write(out_java_enum_addendum) + out_java.write(out_java_addendum) + write_c(out_c_addendum) + + def map_trait(struct_name, field_var_lines, trait_fn_lines, trait_doc_comment): + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_trait: + field_var_convs = [] + flattened_field_var_convs = [] + for var_line in field_var_lines: + if var_line.group(1) in trait_structs: + field_var_convs.append((var_line.group(1), var_line.group(2), trait_structs[var_line.group(1)])) + flattened_field_var_convs.append((var_line.group(1), var_line.group(2), )) + flattened_field_var_convs.extend(trait_structs[var_line.group(1)]) + else: + mapped = type_mapping_generator.map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False) + field_var_convs.append(mapped) + flattened_field_var_convs.append(mapped) + trait_structs[struct_name] = field_var_convs + + field_fns = [] + for fn_docs, fn_line in trait_fn_lines: + if fn_line == "cloned": + ret_ty_info = type_mapping_generator.map_type("void", True, None, False, False) + field_fns.append(TraitMethInfo("cloned", False, ret_ty_info, [], fn_docs)) + else: + (nullable_params, ret_nullable) = doc_to_params_ret_nullable(fn_docs) + if ret_nullable: + assert False # This isn't yet handled on the Java side + ret_ty_info.nullable = True + ret_ty_info = type_mapping_generator.map_nullable_type(fn_line.group(2).strip() + " ret", True, None, False, False) + else: + ret_ty_info = type_mapping_generator.map_type(fn_line.group(2).strip() + " ret", True, None, False, False) + is_const = fn_line.group(4) is not None + + arg_tys = [] + for idx, arg in enumerate(fn_line.group(5).split(',')): + if arg == "": + continue + arg_ty_info = type_mapping_generator.java_c_types(arg, None) + if arg_ty_info.var_name in nullable_params: + # Types that are actually null instead of all-0s aren't yet handled on the Java side: + arg_conv_info = type_mapping_generator.map_type_with_info(arg_ty_info, True, None, False, False, True) + else: + arg_conv_info = type_mapping_generator.map_type_with_info(arg_ty_info, True, None, False, False, False) + arg_tys.append(arg_conv_info) + field_fns.append(TraitMethInfo(fn_line.group(3), is_const, ret_ty_info, arg_tys, fn_docs)) + + (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) + write_c(out_c_addendum) + out_java_trait.write(out_java_trait_addendum) + out_java.write(out_java_addendum) + + for fn_docs, fn_line in trait_fn_lines: + if fn_line == "cloned": + continue + # For now, just disable enabling the _call_log - we don't know how to inverse-map String + is_log = fn_line.group(3) == "log" and struct_name == "LDKLogger" + if fn_line.group(3) != "free" and fn_line.group(3) != "eq" and not is_log: + 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" + 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) + for idx, var_line in enumerate(field_var_lines): + if var_line.group(1) not in trait_structs: + write_c(var_line.group(1) + " " + struct_name + "_set_get_" + var_line.group(2) + "(" + struct_name + "* this_arg) {\n") + write_c("\tif (this_arg->set_" + var_line.group(2) + " != NULL)\n") + write_c("\t\tthis_arg->set_" + var_line.group(2) + "(this_arg);\n") + write_c("\treturn this_arg->" + var_line.group(2) + ";\n") + write_c("}\n") + 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" + 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) + + def map_result(struct_name, res_ty, err_ty): + result_types.add(struct_name) + human_ty = struct_name.replace("LDKCResult", "Result") + res_map = type_mapping_generator.map_type(res_ty + " res", True, None, False, True) + err_map = type_mapping_generator.map_type(err_ty + " err", True, None, False, True) + java_hu_struct = consts.map_result(struct_name, res_map, err_map) + create_getter(struct_name, res_ty, "ok", ("*", "->contents.result"), ("", "->result_ok")) + create_getter(struct_name, err_ty, "err", ("*", "->contents.err"), ("!", "->result_ok")) + with open(f"{sys.argv[3]}/structs/{human_ty}{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(java_hu_struct) + + def create_getter(struct_name, field_decl, field_name, accessor, check_sfx): + field_ty = java_c_types(field_decl + " " + field_name, None) + ptr_fn_defn = field_decl + " *" + struct_name.replace("LDK", "") + "_get_" + field_name + "(" + struct_name + " *NONNULL_PTR owner)" + owned_fn_defn = field_decl + " " + struct_name.replace("LDK", "") + "_get_" + field_name + "(" + struct_name + " *NONNULL_PTR owner)" + + holds_ref = False + if field_ty.rust_obj is not None and field_ty.rust_obj.replace("LDK", "") + "_clone" in clone_fns: + fn_defn = owned_fn_defn + write_c("static inline " + fn_defn + "{\n") + if check_sfx is not None: + write_c("CHECK(" + check_sfx[0] + "owner" + check_sfx[1] + ");\n") + write_c("\treturn " + field_ty.rust_obj.replace("LDK", "") + "_clone(&" + accessor[0] + "owner" + accessor[1] + ");\n") + elif field_ty.arr_len is not None or field_ty.is_native_primitive or field_ty.rust_obj in unitary_enums: + fn_defn = owned_fn_defn + write_c("static inline " + fn_defn + "{\n") + if check_sfx is not None: + write_c("CHECK(" + check_sfx[0] + "owner" + check_sfx[1] + ");\n") + write_c("\treturn " + accessor[0] + "owner" + accessor[1] + ";\n") + holds_ref = True + else: + fn_defn = ptr_fn_defn + write_c("static inline " + fn_defn + "{\n") + if check_sfx is not None: + write_c("CHECK(" + check_sfx[0] + "owner" + check_sfx[1] + ");\n") + write_c("\treturn &" + accessor[0] + "owner" + accessor[1] + ";\n") + holds_ref = True + write_c("}\n") + dummy_line = fn_defn + ";\n" + map_fn_with_ref_option(dummy_line, reg_fn_regex.match(dummy_line), None, None, "", holds_ref) + + def map_tuple(struct_name, field_lines): + human_ty = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple") + with open(f"{sys.argv[3]}/structs/{human_ty}{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(consts.map_tuple(struct_name)) + ty_list = [] + for idx, (line, _) in enumerate(field_lines): + if idx != 0 and idx < len(field_lines) - 2: + ty_list.append(java_c_types(line.strip(';'), None)) + tuple_types[struct_name] = (ty_list, struct_name) + + # Map virtual getter functions + for idx, (line, _) in enumerate(field_lines): + if idx != 0 and idx < len(field_lines) - 2: + field_name = chr(ord('a') + idx - 1) + assert line.endswith(" " + field_name + ";") + create_getter(struct_name, line[:-3].strip(), field_name, ("", "->" + field_name), None) + + out_java.write(consts.bindings_header) + with open(f"{sys.argv[2]}/version{consts.file_ext}", "w") as out_java_version: + out_java_version.write(consts.bindings_version_file.replace('', local_git_version)) + + with open(f"{sys.argv[3]}/structs/CommonBase{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(consts.common_base) + + block_comment = None + last_block_comment = None + cur_block_obj = None + + const_val_regex = re.compile("^extern const ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$") + + line_indicates_result_regex = re.compile("^ union (LDKCResult_[A-Za-z_0-9]*Ptr) contents;$") + line_indicates_vec_regex = re.compile("^ (struct |enum |union )?([A-Za-z_0-9]*) \*data;$") + line_indicates_opaque_regex = re.compile("^ bool is_owned;$") + line_indicates_trait_regex = re.compile("^ (struct |enum |union )?([A-Za-z_0-9]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$") + assert(line_indicates_trait_regex.match(" uintptr_t (*send_data)(void *this_arg, LDKu8slice data, bool resume_read);")) + assert(line_indicates_trait_regex.match(" struct LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);")) + assert(line_indicates_trait_regex.match(" struct LDKCVec_u8Z (*write)(const void *this_arg);")) + line_indicates_trait_clone_regex = re.compile("^ void \(\*cloned\)\(struct ([A-Za-z0-9])* \*NONNULL_PTR new_[A-Za-z0-9]*\);$") + assert(line_indicates_trait_clone_regex.match(" void (*cloned)(struct LDKSign *NONNULL_PTR new_Sign);")) + line_field_var_regex = re.compile("^ struct ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$") + assert(line_field_var_regex.match(" struct LDKMessageSendEventsProvider MessageSendEventsProvider;")) + assert(line_field_var_regex.match(" struct LDKChannelPublicKeys pubkeys;")) + struct_name_regex = re.compile("^typedef (struct|enum|union) (MUST_USE_STRUCT )?(LDK[A-Za-z_0-9]*) {$") + assert(struct_name_regex.match("typedef struct LDKCVec_u8Z {")) + assert(struct_name_regex.match("typedef enum LDKNetwork {")) + + union_enum_items = {} + result_ptr_struct_items = {} + for line in in_h: + if block_comment is not None: if line.endswith("*/\n"): - in_block_comment = False - elif in_block_struct: - if line.startswith("} "): - in_block_struct = False - elif in_block_union: - if line.startswith("} "): - in_block_union = False - elif in_block_enum: + last_block_comment = block_comment.strip("\n") + block_comment = None + else: + block_comment = block_comment + line.strip(" /*") + elif cur_block_obj is not None: + cur_block_obj = cur_block_obj + line if line.startswith("} "): - in_block_enum = False + field_lines = [] + struct_name = None + vec_ty = None + obj_lines = cur_block_obj.split("\n") + is_opaque = False + result_contents = None + is_unitary_enum = False + is_union_enum = False + is_union = False + is_tuple = False + trait_fn_lines = [] + field_var_lines = [] + last_struct_block_comment = None + + for idx, struct_line in enumerate(obj_lines): + if struct_line.strip().startswith("/*"): + block_comment = struct_line.strip(" /*") + if block_comment is not None: + if struct_line.endswith("*/"): + last_struct_block_comment = block_comment.strip("\n") + block_comment = None + else: + block_comment = block_comment + "\n" + struct_line.strip(" /*").replace("…", "...") + else: + struct_name_match = struct_name_regex.match(struct_line) + if struct_name_match is not None: + struct_name = struct_name_match.group(3) + if struct_name_match.group(1) == "enum": + if not struct_name.endswith("_Tag"): + is_unitary_enum = True + else: + is_union_enum = True + elif struct_name_match.group(1) == "union": + is_union = True + if line_indicates_opaque_regex.match(struct_line): + is_opaque = True + result_match = line_indicates_result_regex.match(struct_line) + if result_match is not None: + result_contents = result_match.group(1) + vec_ty_match = line_indicates_vec_regex.match(struct_line) + if vec_ty_match is not None and struct_name.startswith("LDKCVec_"): + vec_ty = vec_ty_match.group(2) + elif struct_name.startswith("LDKC2Tuple_") or struct_name.startswith("LDKC3Tuple_"): + is_tuple = True + trait_fn_match = line_indicates_trait_regex.match(struct_line) + if trait_fn_match is not None: + trait_fn_lines.append((last_struct_block_comment, trait_fn_match)) + trait_clone_fn_match = line_indicates_trait_clone_regex.match(struct_line) + if trait_clone_fn_match is not None: + trait_fn_lines.append((last_struct_block_comment, "cloned")) + field_var_match = line_field_var_regex.match(struct_line) + if field_var_match is not None: + field_var_lines.append(field_var_match) + field_lines.append((struct_line, last_struct_block_comment)) + last_struct_block_comment = None + + assert(struct_name is not None) + 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)) + 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)) + 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)) + 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)) + 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)) + 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)) + 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)) + + if is_opaque: + opaque_structs.add(struct_name) + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_struct: + out_opaque_struct_human = consts.map_opaque_struct(struct_name, last_block_comment) + last_block_comment = None + out_java_struct.write(out_opaque_struct_human) + elif result_contents is not None: + assert result_contents in result_ptr_struct_items + res_ty, err_ty = result_ptr_struct_items[result_contents] + map_result(struct_name, res_ty, err_ty) + elif struct_name.startswith("LDKCResult_") and struct_name.endswith("ZPtr"): + for line, _ in field_lines: + if line.endswith("*result;"): + res_ty = line[:-8].strip() + elif line.endswith("*err;"): + err_ty = line[:-5].strip() + result_ptr_struct_items[struct_name] = (res_ty, err_ty) + result_types.add(struct_name[:-3]) + elif is_tuple: + map_tuple(struct_name, field_lines) + elif vec_ty is not None: + ty_info = type_mapping_generator.map_type(vec_ty + " arr_elem", False, None, False, False) + if ty_info.is_native_primitive: + clone_fns.add(struct_name.replace("LDK", "") + "_clone") + write_c("static inline " + struct_name + " " + struct_name.replace("LDK", "") + "_clone(const " + struct_name + " *orig) {\n") + write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.c_ty + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n") + write_c("\tmemcpy(ret.data, orig->data, sizeof(" + ty_info.c_ty + ") * ret.datalen);\n") + write_c("\treturn ret;\n}\n") + elif (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns: + ty_name = struct_name.replace("LDK", "") + clone_fns.add(ty_name + "_clone") + write_c("static inline " + struct_name + " " + ty_name + "_clone(const " + struct_name + " *orig) {\n") + write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.rust_obj + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n") + write_c("\tfor (size_t i = 0; i < ret.datalen; i++) {\n") + write_c("\t\tret.data[i] = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&orig->data[i]);\n") + write_c("\t}\n\treturn ret;\n}\n") + elif is_union_enum: + assert(struct_name.endswith("_Tag")) + struct_name = struct_name[:-4] + union_enum_items[struct_name] = {"field_lines": field_lines} + elif struct_name.endswith("_Body") and struct_name.split("_")[0] in union_enum_items: + enum_var_name = struct_name.split("_") + union_enum_items[enum_var_name[0]][enum_var_name[1]] = field_lines + elif struct_name in union_enum_items: + tuple_variants = {} + elem_items = -1 + for line, _ in field_lines: + if line == " struct {": + elem_items = 0 + elif line == " };": + elem_items = -1 + elif elem_items > -1: + line = line.strip() + if line.startswith("struct "): + line = line[7:] + elif line.startswith("enum "): + line = line[5:] + split = line.split(" ") + assert len(split) == 2 + tuple_variants[split[1].strip(";")] = split[0] + elem_items += 1 + if elem_items > 1: + # We don't currently support tuple variant with more than one element + assert False + map_complex_enum(struct_name, union_enum_items[struct_name], tuple_variants, last_block_comment) + last_block_comment = None + elif is_unitary_enum: + map_unitary_enum(struct_name, field_lines, last_block_comment) + last_block_comment = None + elif len(trait_fn_lines) > 0: + map_trait(struct_name, field_var_lines, trait_fn_lines, last_block_comment) + elif struct_name == "LDKTxOut": + with open(f"{sys.argv[3]}/structs/TxOut{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(consts.hu_struct_file_prefix) + out_java_struct.write(consts.txout_defn) + fn_line = "struct LDKCVec_u8Z TxOut_get_script_pubkey (struct LDKTxOut* thing)" + write_c(fn_line + " {") + write_c("\treturn CVec_u8Z_clone(&thing->script_pubkey);") + write_c("}") + map_fn(fn_line + "\n", re.compile("(.*) (TxOut_get_script_pubkey) \((.*)\)").match(fn_line), None, None, None) + fn_line = "uint64_t TxOut_get_value (struct LDKTxOut* thing)" + write_c(fn_line + " {") + write_c("\treturn thing->value;") + write_c("}") + map_fn(fn_line + "\n", re.compile("(.*) (TxOut_get_value) \((.*)\)").match(fn_line), None, None, None) + else: + pass # Everything remaining is a byte[] or some form + cur_block_obj = None else: fn_ptr = fn_ptr_regex.match(line) fn_ret_arr = fn_ret_arr_regex.match(line) reg_fn = reg_fn_regex.match(line) + const_val = const_val_regex.match(line) if line.startswith("#include <"): pass elif line.startswith("/*"): - #out_f.write("\t" + line) if not line.endswith("*/\n"): - in_block_comment = True + block_comment = line.strip(" /*") elif line.startswith("typedef enum "): - in_block_enum = True + cur_block_obj = line elif line.startswith("typedef struct "): - in_block_struct = True + cur_block_obj = line elif line.startswith("typedef union "): - in_block_union = True - elif line.startswith("typedef "): - pass + cur_block_obj = line elif fn_ptr is not None: - map_fn(fn_ptr, "") + map_fn(line, fn_ptr, None, None, last_block_comment) + last_block_comment = None elif fn_ret_arr is not None: - map_fn(fn_ret_arr, "[]") + map_fn(line, fn_ret_arr, fn_ret_arr.group(4), None, last_block_comment) + last_block_comment = None elif reg_fn is not None: - map_fn(reg_fn, "") + map_fn(line, reg_fn, None, None, last_block_comment) + last_block_comment = None + elif const_val_regex is not None: + # TODO Map const variables + pass else: assert(line == "\n") - out_f.write("}\n"); + out_java.write(consts.bindings_footer) + for struct_name in opaque_structs: + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct: + out_java_struct.write("}\n") + for struct_name in trait_structs: + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct: + out_java_struct.write("}\n") + for struct_name in complex_enums: + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '').replace('COption', 'Option')}{consts.file_ext}", "a") as out_java_struct: + out_java_struct.write("}\n") + for struct_name in result_types: + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDKCResult', 'Result')}{consts.file_ext}", "a") as out_java_struct: + out_java_struct.write("}\n") + for struct_name in tuple_types: + struct_hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple") + with open(f"{sys.argv[3]}/structs/{struct_hu_name}{consts.file_ext}", "a") as out_java_struct: + out_java_struct.write("}\n") + +with open(f"{sys.argv[4]}/bindings.c.body", "w") as out_c: + out_c.write(consts.c_file_pfx) + out_c.write(consts.init_str()) + out_c.write(c_file) +with open(f"{sys.argv[4]}/version.c", "w") as out_c: + out_c.write(consts.c_version_file.replace('', local_git_version)) +with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util: + util.write(consts.util_fn_sfx) +consts.cleanup()