X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=genbindings.py;h=32cad50a7480adebd50e43b81c12544a45b06c2c;hb=37e5ae059926cd54d7c5aac06a5eef6785662f94;hp=c506bc880527ba61a56bd7b1d827479ff8302241;hpb=a45c7740d7a597043c0c849e534a79d00d06185f;p=ldk-java diff --git a/genbindings.py b/genbindings.py index c506bc88..32cad50a 100755 --- a/genbindings.py +++ b/genbindings.py @@ -1,255 +1,879 @@ #!/usr/bin/env python3 import sys, re -if len(sys.argv) != 4: - print("USAGE: /path/to/lightning.h /path/to/bindings/output.java /path/to/bindings/output.c") +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 in_h, open(sys.argv[2], "w") as out_java, open(sys.argv[3], "w") as out_c: - opaque_structs = set() +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) - var_is_arr_regex = re.compile("\(\*([A-za-z_]*)\)\[([0-9]*)\]") - var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)") - 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:] - if fn_arg.startswith("const "): - fn_arg = fn_arg[6:] +target = None +if sys.argv[6] == "java": + from java_strings import Consts +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) - is_ptr = False - take_by_ptr = False - if fn_arg.startswith("void"): - java_ty = "void" - c_ty = "void" - fn_arg = fn_arg[4:].strip() - elif fn_arg.startswith("bool"): - java_ty = "boolean" - c_ty = "jboolean" - fn_arg = fn_arg[4:].strip() - elif fn_arg.startswith("uint8_t"): - java_ty = "byte" - c_ty = "jbyte" - fn_arg = fn_arg[7:].strip() - elif fn_arg.startswith("uint16_t"): - java_ty = "short" - c_ty = "jshort" - fn_arg = fn_arg[8:].strip() - elif fn_arg.startswith("uint32_t"): - java_ty = "int" - c_ty = "jint" - fn_arg = fn_arg[8:].strip() - elif fn_arg.startswith("uint64_t"): - java_ty = "long" - c_ty = "jlong" - fn_arg = fn_arg[8:].strip() - else: - ma = var_ty_regex.match(fn_arg) - java_ty = "long" - c_ty = "jlong" - fn_arg = ma.group(2).strip() - take_by_ptr = True - if fn_arg.startswith(" *") or fn_arg.startswith("*"): - fn_arg = fn_arg.replace("*", "").strip() - is_ptr = True - c_ty = "jlong" - java_ty = "long" +consts = Consts(DEBUG, target=target) - var_is_arr = var_is_arr_regex.match(fn_arg) - if var_is_arr is not None or ret_arr_len is not None: - assert(not take_by_ptr) - java_ty = java_ty + "[]" - c_ty = c_ty + "Array" - if var_is_arr is not None: - return (java_ty, c_ty, is_ptr, False, var_is_arr.group(1)) - return (java_ty, c_ty, is_ptr or take_by_ptr, is_ptr, fn_arg) - - def map_type(fn_arg, print_void, ret_arr_len, is_free): - 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:] - - (java_ty, c_ty, is_ptr, rust_takes_ptr, var_name) = java_c_types(fn_arg, ret_arr_len) - is_ptr_to_obj = None - if fn_arg.startswith("void"): - if not print_void: - return (None, None, None) - fn_arg = fn_arg.strip("void ") - elif not is_ptr: - split = fn_arg.split(" ", 2) - if len(split) > 1: - fn_arg = split[1] +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: - fn_arg = "" + lastund = False + ret = ret + lastchar.lower() else: - ma = var_ty_regex.match(fn_arg) - is_ptr_to_obj = ma.group(1) - fn_arg = ma.group(2) - assert(c_ty is not None) - assert(java_ty is not None) - out_c.write(c_ty) - out_java.write(java_ty) - - var_is_arr = var_is_arr_regex.match(fn_arg) - if c_ty.endswith("Array"): - if var_is_arr is not None: - arr_name = var_name - arr_len = var_is_arr.group(2) - out_java.write(" " + var_name) - out_c.write(" " + var_name) - else: - arr_name = "ret" - arr_len = ret_arr_len - assert(c_ty == "jbyteArray") - return ("unsigned char " + arr_name + "_arr[" + arr_len + "];\n" + - "(*_env)->GetByteArrayRegion (_env, """ + arr_name + ", 0, " + arr_len + ", " + arr_name + "_arr);\n" + - "unsigned char (*""" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;", - (c_ty + " " + arr_name + "_arr = (*_env)->NewByteArray(_env, " + arr_len + ");\n" + - "(*_env)->SetByteArrayRegion(_env, " + arr_name + "_arr, 0, " + arr_len + ", *", - ");\nreturn ret_arr;"), - arr_name + "_ref") - elif var_name != "": - # If we have a parameter name, print it (noting that it may indicate its a pointer) - out_java.write(" " + var_name) - out_c.write(" " + var_name) - if is_ptr_to_obj is not None: - assert(is_ptr) - if not rust_takes_ptr: - base_conv = is_ptr_to_obj + " " + var_name + "_conv = *(" + is_ptr_to_obj + "*)" + var_name + ";\nfree((void*)" + var_name + ");"; - if is_ptr_to_obj in opaque_structs: - return (base_conv + "\n" + var_name + "_conv._underlying_ref = false;", - "XXX2", var_name + "_conv") - return (base_conv, "XXX2", var_name + "_conv") - else: - assert(not is_free) - return (is_ptr_to_obj + "* " + var_name + "_conv = (" + is_ptr_to_obj + "*)" + var_name + ";", - "XXX2", var_name + "_conv") - elif rust_takes_ptr: - return ("YYY1", "XXX3", var_name) + ret = ret + lastchar + if char.isupper() and not lastund: + ret = ret + "_" + lastund = True else: - return (None, "XXX4", var_name) - elif not print_void: - # We don't have a parameter name, and want one, just call it arg - out_java.write(" arg") - out_c.write(" arg") - if is_ptr_to_obj is not None: - assert(not is_free or is_ptr_to_obj not in opaque_structs); - return (is_ptr_to_obj + " arg_conv = *(" + is_ptr_to_obj + "*)arg;\nfree((void*)arg);", "XXX2", "arg_conv") - else: - assert(not is_free) - return (None, "XXX6", "arg") + lastund = False + lastchar = char + if char.isnumeric(): + lastund = True + return (ret + lastchar.lower()).strip("_") + +unitary_enums = set() +complex_enums = set() +opaque_structs = set() +trait_structs = set() +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:] + 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("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("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("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("LDKTenBytes"): + fn_arg = "uint8_t (*" + fn_arg[12:] + ")[10]" + assert var_is_arr_regex.match(fn_arg[8:]) + rust_obj = "LDKTenBytes" + 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"): + 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: - # We don't have a parameter name, and don't want one (cause we're returning) - if is_ptr_to_obj is not None: - if not rust_takes_ptr: - if is_ptr_to_obj in opaque_structs: - # If we're returning a newly-allocated struct, we don't want Rust to ever - # free, instead relying on the Java GC to lose the ref. We undo this in - # any _free function. - # To avoid any issues, we first assert that the incoming object is non-ref. - return (None, (is_ptr_to_obj + "* ret = malloc(sizeof(" + is_ptr_to_obj + "));\n*ret = ", ";\nassert(!ret->_underlying_ref);\nret->_underlying_ref = true;\nreturn (long)ret;"), None) + 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 + if res.is_native_primitive or res.passed_as_ptr: + return TypeInfo(rust_obj=fn_arg.split(" ")[0], java_ty=res.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, 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=res.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, is_const=is_const, + var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False) + + is_primitive = False + arr_len = None + mapped_type = [] + java_type_plural = 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" + 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" + fn_arg = fn_arg[7:].strip() + is_primitive = True + elif fn_arg.startswith("uint16_t"): + mapped_type = consts.c_type_map['uint16_t'] + java_ty = mapped_type[0] + c_ty = "int16_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" + 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" + fn_arg = fn_arg[8:].strip() + else: + c_ty = "intptr_t" + fn_arg = fn_arg[9:].strip() + is_primitive = True + elif is_const and fn_arg.startswith("char *"): + java_ty = "String" + c_ty = "const char*" + fn_ty_arg = "Ljava/lang/String;" + fn_arg = fn_arg[6:].strip() + elif fn_arg.startswith("LDKStr"): + java_ty = "String" + c_ty = "jstring" + fn_ty_arg = "Ljava/lang/String;" + fn_arg = fn_arg[6:].strip() + arr_access = "chars" + arr_len = "len" + else: + ma = var_ty_regex.match(fn_arg) + if ma.group(1).strip() in unitary_enums: + java_ty = ma.group(1).strip() + c_ty = consts.result_c_ty + fn_ty_arg = "Lorg/ldk/enums/" + ma.group(1).strip() + ";" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + elif ma.group(1).strip().startswith("LDKC2Tuple"): + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty + java_hu_ty = "TwoTuple<" + if not ma.group(1).strip() in tuple_types: + assert java_c_types_none_allowed + return None + for idx, ty_info in enumerate(tuple_types[ma.group(1).strip()][0]): + if idx != 0: + java_hu_ty = java_hu_ty + ", " + if ty_info.is_native_primitive: + if ty_info.java_hu_ty == "int": + java_hu_ty = java_hu_ty + "Integer" # Java concrete integer type is Integer, not Int else: - return (None, (is_ptr_to_obj + "* ret = malloc(sizeof(" + is_ptr_to_obj + "));\n*ret = ", ";\nreturn (long)ret;"), None) + java_hu_ty = java_hu_ty + ty_info.java_hu_ty.title() # If we're a primitive, capitalize the first letter else: - return (None, ("return (long) ", ";"), None) + java_hu_ty = java_hu_ty + ty_info.java_hu_ty + java_hu_ty = java_hu_ty + ">" + fn_ty_arg = "J" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + take_by_ptr = True + elif ma.group(1).strip().startswith("LDKC3Tuple"): + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty + java_hu_ty = "ThreeTuple<" + if not ma.group(1).strip() in tuple_types: + assert java_c_types_none_allowed + return None + for idx, ty_info in enumerate(tuple_types[ma.group(1).strip()][0]): + if idx != 0: + java_hu_ty = java_hu_ty + ", " + if ty_info.is_native_primitive: + if ty_info.java_hu_ty == "int": + java_hu_ty = java_hu_ty + "Integer" # Java concrete integer type is Integer, not Int + else: + java_hu_ty = java_hu_ty + ty_info.java_hu_ty.title() # If we're a primitive, capitalize the first letter + else: + java_hu_ty = java_hu_ty + ty_info.java_hu_ty + java_hu_ty = java_hu_ty + ">" + fn_ty_arg = "J" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + take_by_ptr = True + else: + c_ty = consts.ptr_c_ty + java_ty = consts.ptr_native_ty + java_hu_ty = ma.group(1).strip().replace("LDKCResult", "Result").replace("LDK", "") + fn_ty_arg = "J" + fn_arg = ma.group(2).strip() + rust_obj = ma.group(1).strip() + 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" + is_primitive = False + + var_is_arr = var_is_arr_regex.match(fn_arg) + 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) == 2: + java_ty = mapped_type[1] + else: + java_ty = java_ty + "[]" + c_ty = c_ty + "Array" + if var_is_arr is not None: + if var_is_arr.group(1) == "": + 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, + passed_as_ptr=False, is_ptr=False, var_name="arg", arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False) + 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, + passed_as_ptr=False, is_ptr=False, var_name=var_is_arr.group(1), arr_len=var_is_arr.group(2), arr_access=arr_access, is_native_primitive=False) + + 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, var_name=fn_arg, arr_len=arr_len, arr_access=arr_access, is_native_primitive=is_primitive) + +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 = {} +c_array_class_caches = set() + + +from gen_type_mapping import TypeMappingGenerator +type_mapping_generator = TypeMappingGenerator(java_c_types, consts, c_array_class_caches, 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: - return (None, None, None) + rty = java_c_types(reg_fn.group(1), None) + if rty is not None and rty.rust_obj is not None 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 - def map_fn(re_match, ret_arr_len): - out_java.write("\t/// " + line) +# 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(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java: + def map_fn(line, re_match, ret_arr_len, c_call_string): + out_java.write("\t// " + line) out_java.write("\tpublic static native ") - out_c.write("JNIEXPORT ") + write_c(consts.c_fn_ty_pfx) + + is_free = re_match.group(2).endswith("_free") + struct_meth = re_match.group(2).split("_")[0] + + ret_info = type_mapping_generator.map_type(re_match.group(1), True, ret_arr_len, False, False) + write_c(ret_info.c_ty) + out_java.write(ret_info.java_ty) - _, ret_conv, _ = map_type(re_match.group(1), True, ret_arr_len, False) - if ret_conv is not None: - ret_conv_pfx, ret_conv_sfx = ret_conv + if ret_info.ret_conv is not None: + ret_conv_pfx, ret_conv_sfx = ret_info.ret_conv out_java.write(" " + re_match.group(2) + "(") - out_c.write(" JNICALL Java_org_ldk_impl_bindings_" + re_match.group(2).replace('_', '_1') + "(JNIEnv * _env, jclass _b") + write_c(" " + consts.c_fn_name_pfx + re_match.group(2).replace('_', '_1') + "(" + consts.c_fn_args_pfx) arg_names = [] + default_constructor_args = {} + takes_self = False + args_known = True for idx, arg in enumerate(re_match.group(3).split(',')): if idx != 0: out_java.write(", ") if arg != "void": - out_c.write(", ") - arg_names.append(map_type(arg, False, None, re_match.group(2).endswith("_free"))) + write_c(", ") + arg_conv_info = type_mapping_generator.map_type(arg, False, None, is_free, True) + if arg_conv_info.c_ty != "void": + write_c(arg_conv_info.c_ty + " " + arg_conv_info.arg_name) + out_java.write(arg_conv_info.java_ty + " " + arg_conv_info.arg_name) + if idx == 0 and arg_conv_info.java_hu_ty == struct_meth: + takes_self = True + if arg_conv_info.arg_conv is not None and "Warning" in arg_conv_info.arg_conv: + if arg_conv_info.rust_obj in constructor_fns: + assert not is_free + for explode_arg in constructor_fns[arg_conv_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 arg_conv_info.arg_name in default_constructor_args: + default_constructor_args[arg_conv_info.arg_name] = [] + default_constructor_args[arg_conv_info.arg_name].append(explode_arg_conv) + arg_names.append(arg_conv_info) + + out_java_struct = None + if ("LDK" + struct_meth in opaque_structs or "LDK" + struct_meth in trait_structs) and not is_free: + out_java_struct = open(f"{sys.argv[3]}/structs/{struct_meth}{consts.file_ext}", "a") + if not args_known: + out_java_struct.write("\t// Skipped " + re_match.group(2) + "\n") + out_java_struct.close() + out_java_struct = None + else: + meth_n = re_match.group(2)[len(struct_meth) + 1:] + if not takes_self: + out_java_struct.write("\tpublic static " + ret_info.java_hu_ty + " constructor_" + meth_n + "(") + else: + out_java_struct.write("\tpublic " + ret_info.java_hu_ty + " " + meth_n + "(") + for idx, arg in enumerate(arg_names): + if idx != 0: + if not takes_self or idx > 1: + out_java_struct.write(", ") + elif takes_self: + continue + if arg.java_ty != "void": + if arg.arg_name in default_constructor_args: + for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]): + if explode_idx != 0: + out_java_struct.write(", ") + out_java_struct.write(explode_arg.java_hu_ty + " " + arg.arg_name + "_" + explode_arg.arg_name) + else: + out_java_struct.write(arg.java_hu_ty + " " + arg.arg_name) + out_java.write(");\n") - out_c.write(") {\n") + write_c(") {\n") + if out_java_struct is not None: + out_java_struct.write(") {\n") - for arg_conv, _, _ in arg_names: - if arg_conv is not None: - out_c.write("\t" + arg_conv.replace('\n', "\n\t") + "\n"); + for info in arg_names: + if info.arg_conv is not None: + write_c("\t" + info.arg_conv.replace('\n', "\n\t") + "\n") - if ret_conv is not None: - out_c.write("\t" + ret_conv_pfx.replace('\n', '\n\t')); + if ret_info.ret_conv is not None: + write_c("\t" + ret_conv_pfx.replace('\n', '\n\t')) + elif ret_info.c_ty != "void": + write_c("\t" + ret_info.c_ty + " ret_val = ") else: - out_c.write("\treturn "); + write_c("\t") - out_c.write(re_match.group(2) + "(") - for idx, (_, _, arg) in enumerate(arg_names): - if arg is not None: + if c_call_string is None: + write_c(re_match.group(2) + "(") + else: + write_c(c_call_string) + for idx, info in enumerate(arg_names): + if info.arg_conv_name is not None: if idx != 0: - out_c.write(", ") - out_c.write(arg) - out_c.write(")") - if ret_conv is not None: - out_c.write(ret_conv_sfx.replace('\n', '\n\t')) + write_c(", ") + elif c_call_string is not None: + continue + write_c(info.arg_conv_name) + write_c(")") + if ret_info.ret_conv is not None: + write_c(ret_conv_sfx.replace('\n', '\n\t')) else: - out_c.write(";") - out_c.write("\n}\n\n") + write_c(";") + for info in arg_names: + if info.arg_conv_cleanup is not None: + write_c("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t")) + if ret_info.ret_conv is not None: + write_c("\n\treturn " + ret_info.ret_conv_name + ";") + elif ret_info.c_ty != "void": + write_c("\n\treturn ret_val;") + write_c("\n}\n\n") + if out_java_struct is not None: + out_java_struct.write("\t\t") + if ret_info.java_ty != "void": + out_java_struct.write(ret_info.java_ty + " ret = ") + out_java_struct.write("bindings." + re_match.group(2) + "(") + for idx, info in enumerate(arg_names): + if idx != 0: + out_java_struct.write(", ") + if idx == 0 and takes_self: + out_java_struct.write("this.ptr") + elif info.arg_name in default_constructor_args: + out_java_struct.write("bindings." + info.java_hu_ty + "_new(") + for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]): + if explode_idx != 0: + out_java_struct.write(", ") + expl_arg_name = info.arg_name + "_" + explode_arg.arg_name + if explode_arg.from_hu_conv is not None: + out_java_struct.write(explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name)) + else: + out_java_struct.write(expl_arg_name) + out_java_struct.write(")") + elif info.from_hu_conv is not None: + out_java_struct.write(info.from_hu_conv[0]) + else: + out_java_struct.write(info.arg_name) + out_java_struct.write(");\n") + if ret_info.to_hu_conv is not None: + if not takes_self: + out_java_struct.write("\t\t" + ret_info.to_hu_conv.replace("\n", "\n\t\t").replace("this", ret_info.to_hu_conv_name) + "\n") + else: + out_java_struct.write("\t\t" + ret_info.to_hu_conv.replace("\n", "\n\t\t") + "\n") - out_java.write("""package org.ldk.impl; + for idx, info in enumerate(arg_names): + if idx == 0 and takes_self: + pass + elif info.arg_name in default_constructor_args: + for explode_arg in default_constructor_args[info.arg_name]: + expl_arg_name = info.arg_name + "_" + explode_arg.arg_name + if explode_arg.from_hu_conv is not None and ret_info.to_hu_conv_name: + out_java_struct.write("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name, expl_arg_name).replace("this", ret_info.to_hu_conv_name) + ";\n") + elif info.from_hu_conv is not None and info.from_hu_conv[1] != "": + if not takes_self and ret_info.to_hu_conv_name is not None: + out_java_struct.write("\t\t" + info.from_hu_conv[1].replace("this", ret_info.to_hu_conv_name) + ";\n") + else: + out_java_struct.write("\t\t" + info.from_hu_conv[1] + ";\n") + + if ret_info.to_hu_conv_name is not None: + out_java_struct.write("\t\treturn " + ret_info.to_hu_conv_name + ";\n") + elif ret_info.java_ty != "void" and ret_info.rust_obj != "LDK" + struct_meth: + out_java_struct.write("\t\treturn ret;\n") + out_java_struct.write("\t}\n\n") + out_java_struct.close() + + def map_unitary_enum(struct_name, field_lines): + with open(f"{sys.argv[3]}/enums/{struct_name}{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 == "") + (c_out, native_file_out, native_out) = consts.native_c_unitary_enum_map(struct_name, [x.strip().strip(",") for x in field_lines[1:-3]]) + 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): + java_hu_type = struct_name.replace("LDK", "") + complex_enums.add(struct_name) + + enum_variants = [] + tag_field_lines = union_enum_items["field_lines"] + for idx, struct_line 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 in enumerate(enum_var_lines): + if idx != 0 and idx < len(enum_var_lines) - 2: + fields.append(type_mapping_generator.map_type(field.strip(' ;'), False, None, False, True)) + else: + # TODO: Assert line format + pass + else: + # TODO: Assert line format + pass + enum_variants.append(ComplexEnumVariantInfo(variant_name, fields)) -public class bindings { - static { - System.loadLibrary(\"lightningjni\"); - } + 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) -""") - out_c.write("#include \"org_ldk_impl_bindings.h\"\n") - out_c.write("#include \n") - out_c.write("#include \n") - out_c.write("#include \n\n") - out_c.write("#include \n\n") + 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): + with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_trait: + 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))) + else: + field_var_convs.append( + type_mapping_generator.map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False)) + + field_fns = [] + for fn_line in trait_fn_lines: + ret_ty_info = type_mapping_generator.map_type(fn_line.group(2), 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_conv_info = type_mapping_generator.map_type(arg, True, None, False, False) + arg_tys.append(arg_conv_info) + field_fns.append(TraitMethInfo(fn_line.group(3), is_const, ret_ty_info, arg_tys)) + + (out_java_addendum, out_java_trait_addendum, out_c_addendum) = consts.native_c_map_trait(struct_name, field_var_convs, field_fns) + write_c(out_c_addendum) + out_java_trait.write(out_java_trait_addendum) + out_java.write(out_java_addendum) + + for fn_line in trait_fn_lines: + # 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) != "clone" 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 + "* 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") + 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 + "* 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") + + def map_result(struct_name, res_ty, err_ty): + result_types.add(struct_name) + human_ty = struct_name.replace("LDKCResult", "Result") + with open(f"{sys.argv[3]}/structs/{human_ty}{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(consts.hu_struct_file_prefix) + out_java_struct.write("public class " + human_ty + " extends CommonBase {\n") + out_java_struct.write("\tprivate " + human_ty + "(Object _dummy, long ptr) { super(ptr); }\n") + out_java_struct.write("\tprotected void finalize() throws Throwable {\n") + out_java_struct.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n") + out_java_struct.write("\t}\n\n") + out_java_struct.write("\tstatic " + human_ty + " constr_from_ptr(long ptr) {\n") + out_java_struct.write("\t\tif (bindings." + struct_name + "_result_ok(ptr)) {\n") + out_java_struct.write("\t\t\treturn new " + human_ty + "_OK(null, ptr);\n") + out_java_struct.write("\t\t} else {\n") + out_java_struct.write("\t\t\treturn new " + human_ty + "_Err(null, ptr);\n") + out_java_struct.write("\t\t}\n") + out_java_struct.write("\t}\n") + + 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) + can_clone = True + if not res_map.is_native_primitive and (res_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns): + can_clone = False + if not err_map.is_native_primitive and (err_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns): + can_clone = False + + out_java.write("\tpublic static native boolean " + struct_name + "_result_ok(long arg);\n") + write_c(consts.c_fn_ty_pfx + "jboolean " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1result_1ok (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") + write_c("\treturn ((" + struct_name + "*)arg)->result_ok;\n") + write_c("}\n") + + out_java.write("\tpublic static native " + res_map.java_ty + " " + struct_name + "_get_ok(long arg);\n") + write_c(consts.c_fn_ty_pfx + res_map.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1ok (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") + write_c("\t" + struct_name + " *val = (" + struct_name + "*)arg;\n") + write_c("\tCHECK(val->result_ok);\n\t") + out_java_struct.write("\tpublic static final class " + human_ty + "_OK extends " + human_ty + " {\n") + if res_map.ret_conv is not None: + write_c(res_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.result)") + write_c(res_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + res_map.ret_conv_name) + else: + write_c("return *val->contents.result") + write_c(";\n}\n") + + if res_map.java_hu_ty != "void": + out_java_struct.write("\t\tpublic final " + res_map.java_hu_ty + " res;\n") + out_java_struct.write("\t\tprivate " + human_ty + "_OK(Object _dummy, long ptr) {\n") + out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n") + if res_map.java_hu_ty == "void": + pass + elif res_map.to_hu_conv is not None: + out_java_struct.write("\t\t\t" + res_map.java_ty + " res = bindings." + struct_name + "_get_ok(ptr);\n") + out_java_struct.write("\t\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t\t")) + out_java_struct.write("\n\t\t\tthis.res = " + res_map.to_hu_conv_name + ";\n") + else: + out_java_struct.write("\t\t\tthis.res = bindings." + struct_name + "_get_ok(ptr);\n") + out_java_struct.write("\t\t}\n") + if struct_name.startswith("LDKCResult_None"): + out_java_struct.write("\t\tpublic " + human_ty + "_OK() {\n\t\t\tthis(null, bindings.C" + human_ty + "_ok());\n") + else: + out_java_struct.write("\t\tpublic " + human_ty + "_OK(" + res_map.java_hu_ty + " res) {\n") + if res_map.from_hu_conv is not None: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_ok(" + res_map.from_hu_conv[0] + "));\n") + if res_map.from_hu_conv[1] != "": + out_java_struct.write("\t\t\t" + res_map.from_hu_conv[1] + ";\n") + else: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_ok(res));\n") + out_java_struct.write("\t\t}\n\t}\n\n") + + out_java.write("\tpublic static native " + err_map.java_ty + " " + struct_name + "_get_err(long arg);\n") + write_c(consts.c_fn_ty_pfx + err_map.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1err (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " arg) {\n") + write_c("\t" + struct_name + " *val = (" + struct_name + "*)arg;\n") + write_c("\tCHECK(!val->result_ok);\n\t") + out_java_struct.write("\tpublic static final class " + human_ty + "_Err extends " + human_ty + " {\n") + if err_map.ret_conv is not None: + write_c(err_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.err)") + write_c(err_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + err_map.ret_conv_name) + else: + write_c("return *val->contents.err") + write_c(";\n}\n") + + if err_map.java_hu_ty != "void": + out_java_struct.write("\t\tpublic final " + err_map.java_hu_ty + " err;\n") + out_java_struct.write("\t\tprivate " + human_ty + "_Err(Object _dummy, long ptr) {\n") + out_java_struct.write("\t\t\tsuper(_dummy, ptr);\n") + if err_map.java_hu_ty == "void": + pass + elif err_map.to_hu_conv is not None: + out_java_struct.write("\t\t\t" + err_map.java_ty + " err = bindings." + struct_name + "_get_err(ptr);\n") + out_java_struct.write("\t\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t\t")) + out_java_struct.write("\n\t\t\tthis.err = " + err_map.to_hu_conv_name + ";\n") + else: + out_java_struct.write("\t\t\tthis.err = bindings." + struct_name + "_get_err(ptr);\n") + out_java_struct.write("\t\t}\n") + + if struct_name.endswith("NoneZ"): + out_java_struct.write("\t\tpublic " + human_ty + "_Err() {\n\t\t\tthis(null, bindings.C" + human_ty + "_err());\n") + else: + out_java_struct.write("\t\tpublic " + human_ty + "_Err(" + err_map.java_hu_ty + " err) {\n") + if err_map.from_hu_conv is not None: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_err(" + err_map.from_hu_conv[0] + "));\n") + if err_map.from_hu_conv[1] != "": + out_java_struct.write("\t\t\t" + err_map.from_hu_conv[1] + ";\n") + else: + out_java_struct.write("\t\t\tthis(null, bindings.C" + human_ty + "_err(err));\n") + out_java_struct.write("\t\t}\n\t}\n}\n") + + if can_clone: + 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 + " res = { .result_ok = orig->result_ok };\n") + write_c("\tif (orig->result_ok) {\n") + if res_map.c_ty == "void": + write_c("\t\tres.contents.result = NULL;\n") + else: + if res_map.is_native_primitive: + write_c("\t\t" + res_map.c_ty + "* contents = MALLOC(sizeof(" + res_map.c_ty + "), \"" + res_map.c_ty + " result OK clone\");\n") + write_c("\t\t*contents = *orig->contents.result;\n") + else: + write_c("\t\t" + res_map.rust_obj + "* contents = MALLOC(sizeof(" + res_map.rust_obj + "), \"" + res_map.rust_obj + " result OK clone\");\n") + write_c("\t\t*contents = " + res_map.rust_obj.replace("LDK", "") + "_clone(orig->contents.result);\n") + write_c("\t\tres.contents.result = contents;\n") + write_c("\t} else {\n") + if err_map.c_ty == "void": + write_c("\t\tres.contents.err = NULL;\n") + else: + if err_map.is_native_primitive: + write_c("\t\t" + err_map.c_ty + "* contents = MALLOC(sizeof(" + err_map.c_ty + "), \"" + err_map.c_ty + " result Err clone\");\n") + write_c("\t\t*contents = *orig->contents.err;\n") + else: + write_c("\t\t" + err_map.rust_obj + "* contents = MALLOC(sizeof(" + err_map.rust_obj + "), \"" + err_map.rust_obj + " result Err clone\");\n") + write_c("\t\t*contents = " + err_map.rust_obj.replace("LDK", "") + "_clone(orig->contents.err);\n") + write_c("\t\tres.contents.err = contents;\n") + write_c("\t}\n\treturn res;\n}\n") + + def map_tuple(struct_name, field_lines): + out_java.write("\tpublic static native long " + struct_name + "_new(") + write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new(" + consts.c_fn_args_pfx) + ty_list = [] + for idx, line in enumerate(field_lines): + if idx != 0 and idx < len(field_lines) - 2: + ty_info = java_c_types(line.strip(';'), None) + if idx != 1: + out_java.write(", ") + e = chr(ord('a') + idx - 1) + out_java.write(ty_info.java_ty + " " + e) + write_c(", " + ty_info.c_ty + " " + e) + ty_list.append(ty_info) + tuple_types[struct_name] = (ty_list, struct_name) + out_java.write(");\n") + write_c(") {\n") + write_c("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") + can_clone = True + clone_str = "static inline " + struct_name + " " + struct_name.replace("LDK", "") + "_clone(const " + struct_name + " *orig) {\n" + clone_str = clone_str + "\t" + struct_name + " ret = {\n" + for idx, line in enumerate(field_lines): + if idx != 0 and idx < len(field_lines) - 2: + ty_info = type_mapping_generator.map_type(line.strip(';'), False, None, False, False) + e = chr(ord('a') + idx - 1) + if ty_info.arg_conv is not None: + write_c("\t" + ty_info.arg_conv.replace("\n", "\n\t")) + write_c("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n") + else: + write_c("\tret->" + e + " = " + e + ";\n") + if ty_info.arg_conv_cleanup is not None: + write_c("\t//TODO: Really need to call " + ty_info.arg_conv_cleanup + " here\n") + if not ty_info.is_native_primitive and (ty_info.rust_obj.replace("LDK", "") + "_clone") not in clone_fns: + can_clone = False + elif can_clone and ty_info.is_native_primitive: + clone_str = clone_str + "\t\t." + chr(ord('a') + idx - 1) + " = orig->" + chr(ord('a') + idx - 1) + ",\n" + elif can_clone: + clone_str = clone_str + "\t\t." + chr(ord('a') + idx - 1) + " = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&orig->" + chr(ord('a') + idx - 1) + "),\n" + write_c("\treturn (long)ret;\n") + write_c("}\n") + + if can_clone: + clone_fns.add(struct_name.replace("LDK", "") + "_clone") + write_c(clone_str) + write_c("\t};\n\treturn ret;\n}\n") + + for idx, ty_info in enumerate(ty_list): + e = chr(ord('a') + idx) + out_java.write("\tpublic static native " + ty_info.java_ty + " " + struct_name + "_get_" + e + "(long ptr);\n") + write_c(consts.c_fn_ty_pfx + ty_info.c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1" + e + "(" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " ptr) {\n") + write_c("\t" + struct_name + " *tuple = (" + struct_name + "*)ptr;\n") + conv_info = type_mapping_generator.map_type_with_info(ty_info, False, None, False, True) + if conv_info.ret_conv is not None: + write_c("\t" + conv_info.ret_conv[0].replace("\n", "\n\t") + "tuple->" + e + conv_info.ret_conv[1].replace("\n", "\n\t") + "\n") + write_c("\treturn " + conv_info.ret_conv_name + ";\n") + else: + write_c("\treturn tuple->" + e + ";\n") + write_c("}\n") + + out_java.write(consts.bindings_header) + + with open(f"{sys.argv[3]}/structs/CommonBase{consts.file_ext}", "w") as out_java_struct: + out_java_struct.write(consts.common_base) in_block_comment = False - in_block_enum = False - cur_block_struct = None - in_block_union = False + cur_block_obj = None - 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]*)\((.*)\);$") const_val_regex = re.compile("^extern const ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$") - line_indicates_opaque_regex = re.compile("^ bool _underlying_ref;$") - line_indicates_trait_regex = re.compile("^ ([A-Za-z_0-9]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$") + line_indicates_result_regex = re.compile("^ union (LDKCResult_[A-Za-z_0-9]*Ptr) contents;$") + 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]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$") assert(line_indicates_trait_regex.match(" uintptr_t (*send_data)(void *this_arg, LDKu8slice data, bool resume_read);")) - assert(line_indicates_trait_regex.match(" LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);")) + assert(line_indicates_trait_regex.match(" struct LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);")) assert(line_indicates_trait_regex.match(" void *(*clone)(const void *this_arg);")) - struct_name_regex = re.compile("^typedef struct (MUST_USE_STRUCT )?(LDK[A-Za-z_0-9]*) {$") - assert(struct_name_regex.match("typedef struct LDKCVecTempl_u8 {")) + assert(line_indicates_trait_regex.match(" struct LDKCVec_u8Z (*write)(const void *this_arg);")) + 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 in_block_comment: - #out_java.write("\t" + line) if line.endswith("*/\n"): in_block_comment = False - elif cur_block_struct is not None: - cur_block_struct = cur_block_struct + line + elif cur_block_obj is not None: + cur_block_obj = cur_block_obj + line if line.startswith("} "): field_lines = [] struct_name = None - struct_lines = cur_block_struct.split("\n") + 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 = [] - for idx, struct_line in enumerate(struct_lines): + for idx, struct_line in enumerate(obj_lines): if struct_line.strip().startswith("/*"): in_block_comment = True if in_block_comment: @@ -258,121 +882,132 @@ public class bindings { else: struct_name_match = struct_name_regex.match(struct_line) if struct_name_match is not None: - struct_name = struct_name_match.group(2) + 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(trait_fn_match) + 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) assert(struct_name is not None) - assert(len(trait_fn_lines) == 0 or not is_opaque) + 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) - if len(trait_fn_lines) > 0: - out_c.write("typedef struct " + struct_name + "_JCalls {\n") - out_c.write("\tJNIEnv *env;\n") - out_c.write("\tjobject o;\n") - for fn_line in trait_fn_lines: - if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\tjmethodID " + fn_line.group(2) + "_meth;\n") - out_c.write("} " + struct_name + "_JCalls;\n") - - out_java.write("\tpublic interface " + struct_name + " {\n") - for fn_line in trait_fn_lines: - if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - (java_ty, c_ty, is_ptr, _, _) = java_c_types(fn_line.group(1), None) - - out_java.write("\t\t " + java_ty + " " + fn_line.group(2) + "(") - is_const = fn_line.group(3) is not None - #if not is_ptr: - # out_c.write(c_ty + " " + fn_line.group(2) + "_jcall(") - #else: - out_c.write(fn_line.group(1) + fn_line.group(2) + "_jcall(") - if is_const: - out_c.write("const void* this_arg") - else: - out_c.write("void* this_arg") - - #arg_names = [] - for idx, arg in enumerate(fn_line.group(4).split(',')): - if arg == "": - continue - if idx >= 2: - out_java.write(", ") - out_c.write(", ") - #arg_names.append(map_type(arg, True, None, False)) - out_c.write(arg.strip()) - (arg_java_ty, arg_c_ty, arg_is_ptr, _, arg_name) = java_c_types(arg, None) - out_java.write(arg_java_ty + " " + arg_name) - - out_java.write(");\n") - out_c.write(") {\n") - out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") - - if not is_ptr: - out_c.write("\treturn (*j_calls->env)->Call" + java_ty.title() + "Method(j_calls->env, j_calls->o, j_calls->" + fn_line.group(2) + "_meth") - else: - out_c.write("\t" + fn_line.group(1).strip() + "* ret = (" + fn_line.group(1).strip() + "*)(*j_calls->env)->CallLongMethod(j_calls->env, j_calls->o, j_calls->" + fn_line.group(2) + "_meth"); - for arg in fn_line.group(4).split(','): - if arg == "": - continue - (arg_java_ty, arg_c_ty, arg_is_ptr, _, arg_name) = java_c_types(arg, None) - # TODO: Run conversion here! - out_c.write(", " + arg_name) - out_c.write(");\n"); - - if is_ptr: - out_c.write("\t" + fn_line.group(1).strip() + " res = *ret;\n") - out_c.write("\tfree(ret);\n") - out_c.write("\treturn res;\n") - out_c.write("}\n") - elif fn_line.group(2) == "free": - out_c.write("void " + struct_name + "_JCalls_free(void* this_arg) {\n") - out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n") - out_c.write("\t(*j_calls->env)->DeleteGlobalRef(j_calls->env, j_calls->o);\n") - out_c.write("\tfree(j_calls);\n") - out_c.write("}\n") - elif fn_line.group(2) == "clone": - out_c.write("void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n") - out_c.write("\t" + struct_name + "_JCalls *ret = malloc(sizeof(" + struct_name + "_JCalls));\n") - out_c.write("\tmemcpy(ret, this_arg, sizeof(" + struct_name + "_JCalls));\n") - out_c.write("\treturn ret;\n") - out_c.write("}\n") - out_java.write("\t}\n") - out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl);\n") - - out_c.write("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o) {\n") - out_c.write("\tjclass c = (*env)->GetObjectClass(env, o);\n") - out_c.write("\tassert(c != NULL);\n") - out_c.write("\t" + struct_name + "_JCalls *calls = malloc(sizeof(" + struct_name + "_JCalls));\n") - out_c.write("\tcalls->env = env;\n") - out_c.write("\tcalls->o = (*env)->NewGlobalRef(env, o);\n") - for fn_line in trait_fn_lines: - if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\tcalls->" + fn_line.group(2) + "_meth = (*env)->GetMethodID(env, c, \"" + fn_line.group(2) + "\", \"" + "TODO" + "\");\n") - out_c.write("\tassert(calls->" + fn_line.group(2) + "_meth != NULL);\n") - out_c.write("\n\t" + struct_name + " *ret = malloc(sizeof(" + struct_name + "));\n") - out_c.write("\tret->this_arg = (void*) calls;\n") - for fn_line in trait_fn_lines: - if fn_line.group(2) != "free" and fn_line.group(2) != "clone": - out_c.write("\tret->" + fn_line.group(2) + " = " + fn_line.group(2) + "_jcall;\n") - elif fn_line.group(2) == "free": - out_c.write("\tret->free = " + struct_name + "_JCalls_free;\n") + 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) + 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 len(ty_info.java_fn_ty_arg) == 1: # ie we're a primitive of some form + out_java.write("\tpublic static native long " + struct_name + "_new(" + ty_info.java_ty + "[] elems);\n") + write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new(" + consts.c_fn_args_pfx + ", " + ty_info.c_ty + "Array elems) {\n") + write_c("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n") + write_c("\tret->datalen = " + consts.get_native_arr_len_call[0] + "elems" + consts.get_native_arr_len_call[1] + ";\n") + write_c("\tif (ret->datalen == 0) {\n") + write_c("\t\tret->data = NULL;\n") + write_c("\t} else {\n") + write_c("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n") + write_c("\t\t" + ty_info.c_ty + " *java_elems = " + consts.get_native_arr_ptr_call[0] + "elems" + consts.get_native_arr_ptr_call[1] + ";\n") + write_c("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n") + if ty_info.arg_conv is not None: + write_c("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n") + write_c("\t\t\t" + ty_info.arg_conv.replace("\n", "\n\t\t\t") + "\n") + write_c("\t\t\tret->data[i] = " + ty_info.arg_conv_name + ";\n") + assert ty_info.arg_conv_cleanup is None else: - out_c.write("\tret->clone = " + struct_name + "_JCalls_clone;\n") - out_c.write("\treturn (long)ret;\n") - out_c.write("}\n\n") + write_c("\t\t\tret->data[i] = java_elems[i];\n") + write_c("\t\t}\n") + cleanup = consts.release_native_arr_ptr_call("elems", "java_elems") + if cleanup is not None: + write_c("\t\t" + cleanup + ";\n") + write_c("\t}\n") + write_c("\treturn (long)ret;\n") + write_c("}\n") - #out_java.write("/* " + "\n".join(field_lines) + "*/\n") - cur_block_struct = None - elif in_block_union: - if line.startswith("} "): - in_block_union = False - elif in_block_enum: - if line.startswith("} "): - in_block_enum = 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 = "CVec_" + ty_info.rust_obj.replace("LDK", "") + "Z"; + 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: + map_complex_enum(struct_name, union_enum_items[struct_name]) + elif is_unitary_enum: + map_unitary_enum(struct_name, field_lines) + elif len(trait_fn_lines) > 0: + trait_structs.add(struct_name) + map_trait(struct_name, field_var_lines, trait_fn_lines) + 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("public class TxOut extends CommonBase{\n") + out_java_struct.write("\tTxOut(java.lang.Object _dummy, long ptr) { super(ptr); }\n") + out_java_struct.write("\tlong to_c_ptr() { return 0; }\n") + out_java_struct.write("\t@Override @SuppressWarnings(\"deprecation\")\n") + out_java_struct.write("\tprotected void finalize() throws Throwable {\n") + out_java_struct.write("\t\tsuper.finalize();\n") + out_java_struct.write("\t\tif (ptr != 0) { bindings.TxOut_free(ptr); }\n") + out_java_struct.write("\t}\n") + # TODO: TxOut body + out_java_struct.write("}") + 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) @@ -386,19 +1021,17 @@ public class bindings { if not line.endswith("*/\n"): in_block_comment = True elif line.startswith("typedef enum "): - in_block_enum = True + cur_block_obj = line elif line.startswith("typedef struct "): - cur_block_struct = line + 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, None) + map_fn(line, fn_ptr, None, None) elif fn_ret_arr is not None: - map_fn(fn_ret_arr, fn_ret_arr.group(4)) + map_fn(line, fn_ret_arr, fn_ret_arr.group(4), None) elif reg_fn is not None: - map_fn(reg_fn, None) + map_fn(line, reg_fn, None, None) elif const_val_regex is not None: # TODO Map const variables pass @@ -406,3 +1039,13 @@ public class bindings { assert(line == "\n") out_java.write("}\n") + 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") +with open(sys.argv[4], "w") as out_c: + out_c.write(consts.c_file_pfx) + out_c.write(consts.init_str(c_array_class_caches)) + out_c.write(c_file)