#!/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)
+
+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":
+ 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)
-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()
- 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:]
+consts = Consts(DEBUG, target=target)
+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:
+ 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 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("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"
+ 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:
+ 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:
- ma = var_ty_regex.match(fn_arg)
- java_ty = "long"
- c_ty = "jlong"
+ 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()
- is_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"
-
- var_is_arr = var_is_arr_regex.match(fn_arg)
- if var_is_arr is not None or ret_arr_len is not None:
+ 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:
+ 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
+ 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:
- return (java_ty, c_ty, is_ptr, var_is_arr.group(1))
- return (java_ty, c_ty, 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, _) = 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]
+ 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 = {}
+
+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:
- fn_arg = ""
+ 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
+
+# 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(sys.argv[2], "w") as out_java:
+ # Map a top-level function
+ def map_fn(line, re_match, ret_arr_len, c_call_string):
+ 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(',')
+
+ is_free = method_name.endswith("_free")
+ struct_meth = method_name.split("_")[0]
+
+ return_type_info = type_mapping_generator.map_type(method_return_type, True, ret_arr_len, False, False)
+
+ argument_types = []
+ default_constructor_args = {}
+ takes_self = False
+ args_known = True
+
+ for argument_index, argument in enumerate(method_arguments):
+ argument_conversion_info = type_mapping_generator.map_type(argument, False, None, is_free, True)
+ if argument_index == 0 and argument_conversion_info.java_hu_ty == struct_meth:
+ takes_self = True
+ 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)
+
+ 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, return_type_info, struct_meth, default_constructor_args, takes_self, args_known, type_mapping_generator)
+ 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:
- 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)
- no_ptr = fn_arg.replace('*', '')
- if var_is_arr is not None or ret_arr_len is not None:
- if var_is_arr is not None:
- arr_name = var_is_arr.group(1)
- arr_len = var_is_arr.group(2)
- out_java.write(" " + arr_name)
- out_c.write(" " + arr_name)
+ write_c(out_c_delta)
+
+ 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")
+ elif method_name.startswith("C2Tuple_") and method_name.endswith("_read"):
+ struct_meth = method_name.rsplit("_", 1)[0]
+ out_java_struct = open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a")
+ if out_java_struct is not None:
+ out_java_struct.write(out_java_struct_delta)
+
+ 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:
- 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 no_ptr.strip() != "":
- # If we have a parameter name, print it (noting that it may indicate its a pointer)
- out_java.write(" " + no_ptr.strip())
- out_c.write(" " + no_ptr.strip())
- if is_ptr_to_obj is not None:
- if no_ptr == fn_arg:
- base_conv = is_ptr_to_obj + " " + no_ptr.strip() + "_conv = *(" + is_ptr_to_obj + "*)" + no_ptr.strip() + ";\nfree((void*)" + no_ptr.strip() + ");";
- if is_ptr_to_obj in opaque_structs:
- return (base_conv + "\n" + no_ptr.strip() + "_conv._underlying_ref = false;",
- "XXX2", no_ptr.strip() + "_conv")
- return (base_conv, "XXX2", no_ptr.strip() + "_conv")
+ 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))
+
+ 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_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:
- assert(not is_free)
- return (is_ptr_to_obj + "* " + no_ptr.strip() + "_conv = (" + is_ptr_to_obj + "*)" + no_ptr.strip() + ";",
- "XXX2", no_ptr.strip() + "_conv")
- elif no_ptr != fn_arg:
- return ("YYY1", "XXX3", no_ptr.strip())
+ 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_define_pfx(struct_name + "_result_ok", True) + 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_define_pfx(struct_name + "_get_ok", True) + consts.ptr_c_ty + " arg) {\n")
+ write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\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:
- return (None, "XXX4", no_ptr.strip())
- 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")
+ 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:
- assert(not is_free)
- return (None, "XXX6", "arg")
- 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 no_ptr == fn_arg:
- 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)
- else:
- return (None, (is_ptr_to_obj + "* ret = malloc(sizeof(" + is_ptr_to_obj + "));\n*ret = ", ";\nreturn (long)ret;"), None)
+ 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].replace("\n", "\n\t\t\t") + ";\n")
else:
- return (None, ("return (long) ", ";"), None)
+ 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_define_pfx(struct_name + "_get_err", True) + consts.ptr_c_ty + " arg) {\n")
+ write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\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:
- return (None, None, None)
-
- def map_fn(re_match, ret_arr_len):
- out_java.write("\t/// " + line)
- out_java.write("\tpublic static native ")
- out_c.write("JNIEXPORT ")
-
- _, 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
-
- 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")
-
- arg_names = []
- 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("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].replace("\n", "\n\t\t\t") + ";\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")
+
+ 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_define_pfx(struct_name + "_new", len(field_lines) > 3))
+ 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(", ")
+ write_c(", ")
+ 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")
- out_c.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");
-
- if ret_conv is not None:
- out_c.write("\t" + ret_conv_pfx.replace('\n', '\n\t'));
- else:
- out_c.write("\treturn ");
-
- out_c.write(re_match.group(2) + "(")
- for idx, (_, _, arg) in enumerate(arg_names):
- if arg 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'))
- else:
- out_c.write(";")
- out_c.write("\n}\n\n")
-
- out_java.write("""package org.ldk.impl;
+ write_c(") {\n")
+ write_c("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\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")
+ write_c("\treturn (long)ret;\n")
+ write_c("}\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_define_pfx(struct_name + "_get_" + e, True) + consts.ptr_c_ty + " ptr) {\n")
+ write_c("\t" + struct_name + " *tuple = (" + struct_name + "*)(ptr & ~1);\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")
-public class bindings {
- static {
- System.loadLibrary(\"lightningjni\");
- }
+ out_java.write(consts.bindings_header)
-""")
- out_c.write("#include \"org_ldk_impl_bindings.h\"\n")
- out_c.write("#include <rust_types.h>\n")
- out_c.write("#include <lightning.h>\n")
- out_c.write("#include <assert.h>\n\n")
- out_c.write("#include <string.h>\n\n")
+ 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:
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_define_pfx(struct_name + "_new", True) + 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")
+ native_arr_ptr_call = consts.get_native_arr_ptr_call(ty_info.ty_info)
+ write_c("\t\t" + ty_info.c_ty + " *java_elems = " + native_arr_ptr_call[0] + "elems" + 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")
-
- #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
+ write_c("\t\t\tret->data[i] = java_elems[i];\n")
+ write_c("\t\t}\n")
+ cleanup = consts.release_native_arr_ptr_call(ty_info.ty_info, "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")
+
+ 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)
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
else:
assert(line == "\n")
- out_java.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")
+
+with open(sys.argv[4], "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[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
+ util.write(consts.util_fn_sfx)