#!/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")
+import config
+from config import Language
+import os
+
+configuration = config.setup()
+
+output_language = configuration.language
+if output_language == Language.Java:
+ from java_strings import Consts
+elif output_language == Language.TypeScript:
+ from typescript_strings import Consts
+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()
+consts = Consts(configuration.debug)
- 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:]
+path_to_lightning_header = configuration.lightning_h_path
+path_to_output_blob = configuration.output_blob_path
+path_to_bindings_directory = configuration.bindings_output_directory_path
+path_to_c_file = configuration.output_c_path
- is_ptr = False
- if fn_arg.startswith("void"):
- java_ty = "void"
- c_ty = "void"
- fn_arg = fn_arg.strip("void ")
- elif fn_arg.startswith("bool"):
- java_ty = "boolean"
- c_ty = "jboolean"
- fn_arg = fn_arg.strip("bool ")
- elif fn_arg.startswith("uint8_t"):
- java_ty = "byte"
- c_ty = "jbyte"
- fn_arg = fn_arg.strip("uint8_t ")
- elif fn_arg.startswith("uint32_t"):
- java_ty = "int"
- c_ty = "jint"
- fn_arg = fn_arg.strip("uint32_t ")
- elif fn_arg.startswith("uint64_t"):
- java_ty = "long"
- c_ty = "jlong"
- fn_arg = fn_arg.strip("uint64_t ")
+
+
+
+
+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:
- ma = var_ty_regex.match(fn_arg)
- java_ty = "long"
- c_ty = "jlong"
- fn_arg = ma.group(2)
+ 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("_")
+
+
+def recursiveOpenFile(path, *args):
+ output_directory_path = os.path.dirname(path)
+ if not os.path.isdir(output_directory_path):
+ os.makedirs(output_directory_path)
+ return open(path, *args)
+
+
+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
- var_is_arr = var_is_arr_regex.match(fn_arg)
- if var_is_arr is not None or ret_arr_len is not None:
- java_ty = java_ty + "[]"
- c_ty = c_ty + "Array"
- return (java_ty, c_ty, is_ptr)
-
- 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]
- else:
- fn_arg = ""
+ 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:
- 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)
+ 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
+ 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"):
+ java_ty = "byte"
+ c_ty = "int8_t"
+ fn_ty_arg = "B"
+ fn_arg = fn_arg[7:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint16_t"):
+ java_ty = "short"
+ c_ty = "jshort"
+ fn_ty_arg = "S"
+ fn_arg = fn_arg[8:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint32_t"):
+ java_ty = "int"
+ 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 :(
+ java_ty = "long"
+ c_ty = "int64_t"
+ fn_ty_arg = "J"
+ if fn_arg.startswith("uint64_t"):
+ fn_arg = fn_arg[8:].strip()
+ else:
+ 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:
+ 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)
+ 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()
+with open(path_to_lightning_header) as in_h:
+ for line in in_h:
+ reg_fn = reg_fn_regex.match(line)
+ if reg_fn is not None:
+ if reg_fn.group(2).endswith("_clone"):
+ clone_fns.add(reg_fn.group(2))
+ else:
+ rty = java_c_types(reg_fn.group(1), None)
+ if rty is not None and 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(path_to_lightning_header) as in_h, open(path_to_output_blob, "w") as out_java:
+ def map_type(fn_arg, print_void, ret_arr_len, is_free, holds_ref):
+ ty_info = java_c_types(fn_arg, ret_arr_len)
+ return map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref)
+
+ def map_type_with_info(ty_info, print_void, ret_arr_len, is_free, holds_ref):
+ if ty_info.c_ty == "void":
+ if not print_void:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
+ ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
+ if ty_info.c_ty.endswith("Array"):
+ arr_len = ty_info.arr_len
+ if arr_len is not None:
+ arr_name = ty_info.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 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")
+ if ty_info.c_ty == "int8_tArray":
+ (set_pfx, set_sfx) = consts.set_native_arr_contents(arr_name + "_arr", arr_len, ty_info)
+ ret_conv = ("int8_tArray " + arr_name + "_arr = " + consts.create_native_arr_call(arr_len, ty_info) + ";\n" + set_pfx, "")
+ arg_conv_cleanup = None
+ if not arr_len.isdigit():
+ arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n"
+ arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = " + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + ";\n"
+ if (not ty_info.is_ptr or not holds_ref) and ty_info.rust_obj != "LDKu8slice":
+ arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = MALLOC(" + arr_name + "_ref." + arr_len + ", \"" + ty_info.rust_obj + " Bytes\");\n"
+ arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info, True) + ";"
+ else:
+ arg_conv = arg_conv + arr_name + "_ref." + ty_info.arr_access + " = " + consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_ref." + arr_len, ty_info, False) + ";"
+ arg_conv_cleanup = consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_name + "_ref." + arr_len, ty_info)
+ if ty_info.rust_obj == "LDKTransaction":
+ arg_conv = arg_conv + "\n" + arr_name + "_ref.data_is_owned = " + str(holds_ref).lower() + ";"
+ ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
+ ret_conv = (ret_conv[0], ";\nint8_tArray " + arr_name + "_arr = " + consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n")
+ (pfx, sfx) = consts.set_native_arr_contents(arr_name + "_arr", arr_name + "_var." + arr_len, ty_info)
+ ret_conv = (ret_conv[0], ret_conv[1] + pfx + arr_name + "_var." + ty_info.arr_access + sfx + ";")
+ if not holds_ref and ty_info.rust_obj != "LDKu8slice":
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
+ elif ty_info.rust_obj is not None:
+ arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n"
+ arg_conv = arg_conv + "CHECK(" + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n"
+ arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_ref." + ty_info.arr_access, arr_len, ty_info, True) + ";"
+ ret_conv = (ret_conv[0], "." + ty_info.arr_access + set_sfx + ";")
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())
+ arg_conv = "unsigned char " + arr_name + "_arr[" + arr_len + "];\n"
+ arg_conv = arg_conv + "CHECK(" + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + " == " + arr_len + ");\n"
+ arg_conv = arg_conv + consts.get_native_arr_contents(arr_name, arr_name + "_arr", arr_len, ty_info, True) + ";\n"
+ arg_conv = arg_conv + "unsigned char (*" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;"
+ ret_conv = (ret_conv[0] + "*", set_sfx + ";")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = arg_conv, arg_conv_name = arr_name + "_ref", arg_conv_cleanup = arg_conv_cleanup,
+ ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
else:
- return (None, "XXX4", no_ptr.strip())
- elif not print_void:
+ assert not arr_len.isdigit() # fixed length arrays not implemented
+ assert ty_info.java_ty[len(ty_info.java_ty) - 2:] == "[]"
+ conv_name = "arr_conv_" + str(len(ty_info.java_hu_ty))
+ idxc = chr(ord('a') + (len(ty_info.java_hu_ty) % 26))
+ ty_info.subty.var_name = conv_name
+ #XXX: We'd really prefer to only ever set to False, avoiding lots of clone, but need smarter free logic
+ #if ty_info.is_ptr or holds_ref:
+ # ty_info.subty.requires_clone = False
+ ty_info.subty.requires_clone = not ty_info.is_ptr or not holds_ref
+ subty = map_type_with_info(ty_info.subty, False, None, is_free, holds_ref)
+ if arr_name == "":
+ arr_name = "arg"
+ arg_conv = ty_info.rust_obj + " " + arr_name + "_constr;\n"
+ arg_conv = arg_conv + arr_name + "_constr." + arr_len + " = " + consts.get_native_arr_len_call[0] + arr_name + consts.get_native_arr_len_call[1] + ";\n"
+ arg_conv = arg_conv + "if (" + arr_name + "_constr." + arr_len + " > 0)\n"
+ if subty.rust_obj is None:
+ szof = subty.c_ty
+ else:
+ szof = subty.rust_obj
+ arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = MALLOC(" + arr_name + "_constr." + arr_len + " * sizeof(" + szof + "), \"" + ty_info.rust_obj + " Elements\");\n"
+ arg_conv = arg_conv + "else\n"
+ arg_conv = arg_conv + "\t" + arr_name + "_constr." + ty_info.arr_access + " = NULL;\n"
+ get_arr = consts.get_native_arr_contents(arr_name, "NO_DEST", arr_name + "_constr." + arr_len, ty_info, False)
+ if get_arr != None:
+ arg_conv = arg_conv + subty.c_ty + "* " + arr_name + "_vals = " + get_arr + ";\n"
+ arg_conv = arg_conv + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_constr." + arr_len + "; " + idxc + "++) {\n"
+ if get_arr != None:
+ arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + arr_name + "_vals[" + idxc + "];"
+ if subty.arg_conv is not None:
+ arg_conv = arg_conv + "\n\t" + subty.arg_conv.replace("\n", "\n\t")
+ else:
+ arg_conv = arg_conv + "\t" + subty.c_ty + " " + conv_name + " = " + consts.get_native_arr_elem(arr_name, idxc, ty_info) + ";\n"
+ arg_conv = arg_conv + "\t" + subty.arg_conv.replace("\n", "\n\t")
+ arg_conv = arg_conv + "\n\t" + arr_name + "_constr." + ty_info.arr_access + "[" + idxc + "] = " + subty.arg_conv_name + ";\n}"
+ if get_arr != None:
+ cleanup = consts.cleanup_native_arr_ref_contents(arr_name, arr_name + "_vals", arr_name + "_constr." + arr_len, ty_info)
+ if cleanup is not None:
+ arg_conv = arg_conv + "\n" + cleanup + ";"
+ if ty_info.is_ptr:
+ arg_conv_name = "&" + arr_name + "_constr"
+ else:
+ arg_conv_name = arr_name + "_constr"
+ arg_conv_cleanup = None
+ if ty_info.is_ptr:
+ arg_conv_cleanup = "FREE(" + arr_name + "_constr." + ty_info.arr_access + ");"
+
+ if arr_name == "arg":
+ arr_name = "ret"
+ ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
+ if subty.ret_conv is None:
+ ret_conv = ("DUMMY", "DUMMY")
+ elif not ty_info.java_ty[:len(ty_info.java_ty) - 2].endswith("[]"):
+ ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = " + consts.create_native_arr_call(arr_name + "_var." + arr_len, ty_info) + ";\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + subty.c_ty + " *" + arr_name + "_arr_ptr = " + consts.get_native_arr_ptr_call[0] + arr_name + "_arr" + consts.get_native_arr_ptr_call[1] + ";\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
+ ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n\t" + arr_name + "_arr_ptr[" + idxc + "] = " + subty.ret_conv_name + ";\n}")
+ cleanup = consts.release_native_arr_ptr_call(arr_name + "_arr", arr_name + "_arr_ptr")
+ if cleanup is not None:
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n" + cleanup + ";")
+ else:
+ assert ty_info.java_fn_ty_arg.startswith("[")
+ clz_var = ty_info.java_fn_ty_arg[1:].replace("[", "arr_of_")
+ c_array_class_caches.add(clz_var)
+ ret_conv = (ret_conv[0], ";\n" + ty_info.c_ty + " " + arr_name + "_arr = (*env)->NewObjectArray(env, " + arr_name + "_var." + arr_len + ", " + clz_var + "_clz, NULL);\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "for (size_t " + idxc + " = 0; " + idxc + " < " + arr_name + "_var." + arr_len + "; " + idxc + "++) {\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "\t" + subty.ret_conv[0].replace("\n", "\n\t"))
+ ret_conv = (ret_conv[0], ret_conv[1] + arr_name + "_var." + ty_info.arr_access + "[" + idxc + "]" + subty.ret_conv[1].replace("\n", "\n\t"))
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n\t(*env)->SetObjectArrayElement(env, " + arr_name + "_arr, " + idxc + ", " + subty.ret_conv_name + ");\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "}")
+ if not holds_ref:
+ # XXX: The commented if's are a bit smarter freeing, but we need to be a nudge smarter still
+ # Note that we don't drop the full vec here - we're passing ownership to java (or have cloned) or free'd by now!
+ ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
+ #if subty.rust_obj is not None and subty.rust_obj in opaque_structs:
+ # ret_conv = (ret_conv[0], ret_conv[1] + "\nFREE(" + arr_name + "_var." + ty_info.arr_access + ");")
+ #else:
+ # ret_conv = (ret_conv[0], ret_conv[1] + "\n" + ty_info.rust_obj.replace("LDK", "") + "_free(" + arr_name + "_var);")
+
+ to_hu_conv = None
+ to_hu_conv_name = None
+ if subty.to_hu_conv is not None:
+ to_hu_conv = ty_info.java_hu_ty + " " + conv_name + "_arr = new " + ty_info.subty.java_hu_ty.split("<")[0] + "[" + arr_name + ".length];\n"
+ to_hu_conv = to_hu_conv + "for (int " + idxc + " = 0; " + idxc + " < " + arr_name + ".length; " + idxc + "++) {\n"
+ to_hu_conv = to_hu_conv + "\t" + subty.java_ty + " " + conv_name + " = " + arr_name + "[" + idxc + "];\n"
+ to_hu_conv = to_hu_conv + "\t" + subty.to_hu_conv.replace("\n", "\n\t") + "\n"
+ to_hu_conv = to_hu_conv + "\t" + conv_name + "_arr[" + idxc + "] = " + subty.to_hu_conv_name + ";\n}"
+ to_hu_conv_name = conv_name + "_arr"
+ from_hu_conv = None
+ if subty.from_hu_conv is not None:
+ if subty.java_ty == "long" and subty.java_hu_ty != "long":
+ from_hu_conv = ("Arrays.stream(" + arr_name + ").mapToLong(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
+ elif subty.java_ty == "long":
+ from_hu_conv = ("Arrays.stream(" + arr_name + ").map(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
+ else:
+ from_hu_conv = ("(" + ty_info.java_ty + ")Arrays.stream(" + arr_name + ").map(" + conv_name + " -> " + subty.from_hu_conv[0] + ").toArray()", "/* TODO 2 " + subty.java_hu_ty + " */")
+
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = arg_conv_cleanup,
+ ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = to_hu_conv, to_hu_conv_name = to_hu_conv_name, from_hu_conv = from_hu_conv)
+ elif ty_info.java_ty == "String":
+ if ty_info.arr_access is None:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
+ ret_conv = ("jstring " + ty_info.var_name + "_conv = (*env)->NewStringUTF(env, ", ");"), ret_conv_name = ty_info.var_name + "_conv",
+ to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
+ else:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None,
+ ret_conv = ("LDKStr " + ty_info.var_name + "_str = ",
+ ";\nchar* " + ty_info.var_name + "_buf = MALLOC(" + ty_info.var_name + "_str." + ty_info.arr_len + " + 1, \"str conv buf\");\n" +
+ "memcpy(" + ty_info.var_name + "_buf, " + ty_info.var_name + "_str." + ty_info.arr_access + ", " + ty_info.var_name + "_str." + ty_info.arr_len + ");\n" +
+ ty_info.var_name + "_buf[" + ty_info.var_name + "_str." + ty_info.arr_len + "] = 0;\n" +
+ "jstring " + ty_info.var_name + "_conv = (*env)->NewStringUTF(env, " + ty_info.var_name + "_str." + ty_info.arr_access + ");\n" +
+ "FREE(" + ty_info.var_name + "_buf);"),
+ ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
+ elif ty_info.var_name == "" and 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")
+ if ty_info.rust_obj is not None:
+ assert(not is_free or ty_info.rust_obj not in opaque_structs)
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + " arg_conv = *(" + ty_info.rust_obj + "*)arg;\nFREE((void*)arg);",
+ arg_conv_name = "arg_conv", arg_conv_cleanup = None,
+ ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 7", to_hu_conv_name = None, from_hu_conv = None)
else:
assert(not is_free)
- return (None, "XXX6", "arg")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = "arg", arg_conv_cleanup = None,
+ ret_conv = None, ret_conv_name = None, to_hu_conv = "TODO 8", to_hu_conv_name = None, from_hu_conv = None)
+ elif ty_info.rust_obj is None:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = None, arg_conv_name = ty_info.var_name, arg_conv_cleanup = None,
+ ret_conv = None, ret_conv_name = None, to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
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)
+ if ty_info.var_name == "":
+ ty_info.var_name = "ret"
+
+ if ty_info.rust_obj in opaque_structs:
+ opaque_arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv;\n"
+ opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.inner = (void*)(" + ty_info.var_name + " & (~1));\n"
+ if ty_info.is_ptr and holds_ref:
+ opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = false;"
+ else:
+ opaque_arg_conv = opaque_arg_conv + ty_info.var_name + "_conv.is_owned = (" + ty_info.var_name + " & 1) || (" + ty_info.var_name + " == 0);"
+ if not is_free and (not ty_info.is_ptr or not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False:
+ if (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ # TODO: This is a bit too naive, even with the checks above, we really need to know if rust wants a ref or not, not just if its pass as a ptr.
+ opaque_arg_conv = opaque_arg_conv + "\nif (" + ty_info.var_name + "_conv.inner != NULL)\n"
+ opaque_arg_conv = opaque_arg_conv + "\t" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&" + ty_info.var_name + "_conv);"
+ elif ty_info.passed_as_ptr:
+ opaque_arg_conv = opaque_arg_conv + "\n// Warning: we may need a move here but can't clone!"
+
+ opaque_ret_conv_suf = ";\n"
+ if not holds_ref and ty_info.is_ptr and (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns: # is_ptr, not holds_ref implies passing a pointed-to value to java, which needs copied
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "->inner != NULL)\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_var = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");\n"
+ elif not holds_ref and ty_info.is_ptr:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "// Warning: we may need a move here but can't clone!\n"
+
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "CHECK((((long)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n"
+ if holds_ref:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner & ~1;"
+ else:
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner;\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "\t" + ty_info.var_name + "_ref |= 1;\n"
+ opaque_ret_conv_suf = opaque_ret_conv_suf + "}"
+
+ if ty_info.is_ptr:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = opaque_arg_conv, arg_conv_name = "&" + ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = *", opaque_ret_conv_suf),
+ ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ else:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = opaque_arg_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " " + ty_info.var_name + "_var = ", opaque_ret_conv_suf),
+ ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+
+ if not ty_info.is_ptr:
+ if ty_info.rust_obj in unitary_enums:
+ (ret_pfx, ret_sfx) = consts.c_unitary_enum_to_native_call(ty_info)
+ (arg_pfx, arg_sfx) = consts.native_unitary_enum_to_c_call(ty_info)
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = " + arg_pfx + ty_info.var_name + arg_sfx + ";",
+ arg_conv_name = ty_info.var_name + "_conv",
+ arg_conv_cleanup = None,
+ ret_conv = (ty_info.c_ty + " " + ty_info.var_name + "_conv = " + ret_pfx, ret_sfx + ";"),
+ ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None)
+ base_conv = ty_info.rust_obj + " " + ty_info.var_name + "_conv = *(" + ty_info.rust_obj + "*)" + ty_info.var_name + ";"
+ if ty_info.rust_obj in trait_structs:
+ if not is_free:
+ needs_full_clone = not is_free and (not ty_info.is_ptr and not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False
+ if needs_full_clone and (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ base_conv = base_conv + "\n" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + ");"
+ else:
+ base_conv = base_conv + "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
+ base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
+ base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_clone(" + ty_info.var_name + "_conv.this_arg);\n}"
+ if needs_full_clone:
+ base_conv = base_conv + "// Warning: we may need a move here but can't do a full clone!\n"
+
+ else:
+ base_conv = base_conv + "\n" + "FREE((void*)" + ty_info.var_name + ");"
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"),
+ ret_conv_name = "(long)ret",
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ if ty_info.rust_obj != "LDKu8slice":
+ # Don't bother free'ing slices passed in - Rust doesn't auto-free the
+ # underlying unlike Vecs, and it gives Java more freedom.
+ base_conv = base_conv + "\nFREE((void*)" + ty_info.var_name + ");";
+ if ty_info.rust_obj in complex_enums:
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
+ if not holds_ref:
+ ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_copy = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n", "")
+ if ty_info.requires_clone == True: # Set in object array mapping
+ if (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&", ");\n")
+ else:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", "; // XXX: We likely need to clone here, but no _clone fn is available!\n")
+ else:
+ ret_conv = (ret_conv[0] + "*" + ty_info.var_name + "_copy = ", ";\n")
+ ret_conv = (ret_conv[0], ret_conv[1] + "long " + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_copy;")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");\n" + ty_info.var_name + "_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
+ if ty_info.rust_obj in result_types:
+ if holds_ref:
+ # If we're trying to return a ref, we have to clone.
+ # We just blindly assume its implemented and let the compiler fail if its not.
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_conv = ", ";")
+ ret_conv = (ret_conv[0], ret_conv[1] + "\n*" + ty_info.var_name + "_conv = " + ty_info.rust_obj.replace("LDK", "") + "_clone(" + ty_info.var_name + "_conv);")
else:
- return (None, (is_ptr_to_obj + "* ret = malloc(sizeof(" + is_ptr_to_obj + "));\n*ret = ", ";\nreturn (long)ret;"), None)
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_conv = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_conv = ", ";")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_conv",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv", from_hu_conv = (ty_info.var_name + " != null ? " + ty_info.var_name + ".ptr : 0", ""))
+ if ty_info.rust_obj in tuple_types:
+ from_hu_conv = "bindings." + tuple_types[ty_info.rust_obj][1].replace("LDK", "") + "_new("
+ to_hu_conv_pfx = ""
+ to_hu_conv_sfx = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " + ty_info.java_hu_ty + "("
+ clone_ret_str = ""
+ for idx, conv in enumerate(tuple_types[ty_info.rust_obj][0]):
+ if idx != 0:
+ to_hu_conv_sfx = to_hu_conv_sfx + ", "
+ from_hu_conv = from_hu_conv + ", "
+ conv.var_name = ty_info.var_name + "_" + chr(idx + ord("a"))
+ conv_map = map_type_with_info(conv, False, None, is_free, holds_ref)
+ to_hu_conv_pfx = to_hu_conv_pfx + conv.java_ty + " " + ty_info.var_name + "_" + chr(idx + ord("a")) + " = " + "bindings." + tuple_types[ty_info.rust_obj][1] + "_get_" + chr(idx + ord("a")) + "(" + ty_info.var_name + ");\n"
+ if conv_map.to_hu_conv is not None:
+ to_hu_conv_pfx = to_hu_conv_pfx + conv_map.to_hu_conv + ";\n"
+ to_hu_conv_sfx = to_hu_conv_sfx + conv_map.to_hu_conv_name
+ else:
+ to_hu_conv_sfx = to_hu_conv_sfx + ty_info.var_name + "_" + chr(idx + ord("a"))
+ if conv_map.from_hu_conv is not None:
+ from_hu_conv = from_hu_conv + conv_map.from_hu_conv[0].replace(ty_info.var_name + "_" + chr(idx + ord("a")), ty_info.var_name + "." + chr(idx + ord("a")))
+ if conv_map.from_hu_conv[1] != "":
+ from_hu_conv = from_hu_conv + "/*XXX: " + conv_map.from_hu_conv[1] + "*/"
+ else:
+ from_hu_conv = from_hu_conv + ty_info.var_name + "." + chr(idx + ord("a"))
+
+ if conv.is_native_primitive:
+ pass
+ elif (conv_map.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ accessor = ty_info.var_name + "_ref->" + chr(idx + ord("a"))
+ clone_ret_str = clone_ret_str + "\n" + accessor + " = " + conv_map.rust_obj.replace("LDK", "") + "_clone(&" + accessor + ");"
+ else:
+ clone_ret_str = clone_ret_str + "\n// XXX: We likely need to clone here, but no _clone fn is available for " + conv_map.java_hu_ty
+ if not ty_info.is_ptr and not holds_ref:
+ ret_conv = (ty_info.rust_obj + "* " + ty_info.var_name + "_ref = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*" + ty_info.var_name + "_ref = ", ";")
+ if not is_free and (not ty_info.is_ptr and not holds_ref or ty_info.requires_clone == True) and ty_info.requires_clone != False:
+ ret_conv = (ret_conv[0], ret_conv[1] + clone_ret_str)
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv,
+ ret_conv_name = "(long)" + ty_info.var_name + "_ref",
+ to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", ""))
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";"), ret_conv_name = ty_info.var_name + "_ref",
+ to_hu_conv = to_hu_conv_pfx + to_hu_conv_sfx + ");", to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (from_hu_conv + ")", ""))
+
+ # The manually-defined types - TxOut and Transaction
+ assert ty_info.rust_obj == "LDKTxOut"
+ if not ty_info.is_ptr and not holds_ref:
+ ret_conv = ("LDKTxOut* " + ty_info.var_name + "_ref = MALLOC(sizeof(LDKTxOut), \"LDKTxOut\");\n*" + ty_info.var_name + "_ref = ", ";")
else:
- return (None, ("return (long) ", ";"), None)
- else:
- return (None, None, None)
+ ret_conv = ("long " + ty_info.var_name + "_ref = (long)&", ";")
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = base_conv, arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ret_conv, ret_conv_name = "(long)" + ty_info.var_name + "_ref",
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_conv = new " +ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_conv", from_hu_conv = (ty_info.var_name + ".ptr", ""))
+ elif ty_info.is_ptr:
+ assert(not is_free)
+ if ty_info.rust_obj in complex_enums:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = ty_info.java_hu_ty + " " + ty_info.var_name + "_hu_conv = " + ty_info.java_hu_ty + ".constr_from_ptr(" + ty_info.var_name + ");",
+ to_hu_conv_name = ty_info.var_name + "_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr & ~1", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ elif ty_info.rust_obj in trait_structs:
+ if ty_info.rust_obj.replace("LDK", "") + "_clone" in clone_fns:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = (ty_info.rust_obj + " *" + ty_info.var_name + "_clone = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n" +
+ "*" + ty_info.var_name + "_clone = " + ty_info.rust_obj.replace("LDK", "") + "_clone(", ");"),
+ ret_conv_name = "(long)" + ty_info.var_name + "_clone",
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ else:
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = ty_info.java_hu_ty + " ret_hu_conv = new " + ty_info.java_hu_ty + "(null, " + ty_info.var_name + ");\nret_hu_conv.ptrs_to.add(this);",
+ to_hu_conv_name = "ret_hu_conv",
+ from_hu_conv = (ty_info.var_name + " == null ? 0 : " + ty_info.var_name + ".ptr", "this.ptrs_to.add(" + ty_info.var_name + ")"))
+ return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
+ arg_conv = ty_info.rust_obj + "* " + ty_info.var_name + "_conv = (" + ty_info.rust_obj + "*)" + ty_info.var_name + ";",
+ arg_conv_name = ty_info.var_name + "_conv", arg_conv_cleanup = None,
+ ret_conv = ("long ret_" + ty_info.var_name + " = (long)", ";"), ret_conv_name = "ret_" + ty_info.var_name,
+ to_hu_conv = "TODO 3", to_hu_conv_name = None, from_hu_conv = None) # its a pointer, no conv needed
+ assert False # We should have handled every case by now.
+
+
- def map_fn(re_match, ret_arr_len):
- out_java.write("\t/// " + line)
+ 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)
- _, 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
+ is_free = re_match.group(2).endswith("_free")
+ struct_meth = re_match.group(2).split("_")[0]
+
+ ret_info = 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)
+
+ 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 = 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 = 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"{path_to_bindings_directory}/structs/{struct_meth}.{consts.file_extension}", "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")
+
+ 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 recursiveOpenFile(f"{path_to_bindings_directory}/enums/{struct_name}.{consts.file_extension}", "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)
+ with open(sys.argv[3] + "/structs/" + java_hu_type + ".java", "w") as out_java_enum:
+ out_java_enum.write(consts.hu_struct_file_prefix)
+ out_java_enum.write("public class " + java_hu_type + " extends CommonBase {\n")
+ out_java_enum.write("\tprivate " + java_hu_type + "(Object _dummy, long ptr) { super(ptr); }\n")
+ out_java_enum.write("\t@Override @SuppressWarnings(\"deprecation\")\n")
+ out_java_enum.write("\tprotected void finalize() throws Throwable {\n")
+ out_java_enum.write("\t\tsuper.finalize();\n")
+ out_java_enum.write("\t\tif (ptr != 0) { bindings." + java_hu_type + "_free(ptr); }\n")
+ out_java_enum.write("\t}\n")
+ out_java_enum.write("\tstatic " + java_hu_type + " constr_from_ptr(long ptr) {\n")
+ out_java_enum.write("\t\tbindings." + struct_name + " raw_val = bindings." + struct_name + "_ref_from_ptr(ptr);\n")
+ java_hu_subclasses = ""
+
+ tag_field_lines = union_enum_items["field_lines"]
+ init_meth_jty_strs = {}
+ 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 == "")
+
+ out_java.write("\tpublic static class " + struct_name + " {\n")
+ out_java.write("\t\tprivate " + struct_name + "() {}\n")
+ for idx, struct_line in enumerate(tag_field_lines):
+ if idx != 0 and idx < len(tag_field_lines) - 3:
+ var_name = struct_line.strip(' ,')[len(struct_name) + 1:]
+ out_java.write("\t\tpublic final static class " + var_name + " extends " + struct_name + " {\n")
+ java_hu_subclasses = java_hu_subclasses + "\tpublic final static class " + var_name + " extends " + java_hu_type + " {\n"
+ out_java_enum.write("\t\tif (raw_val.getClass() == bindings." + struct_name + "." + var_name + ".class) {\n")
+ out_java_enum.write("\t\t\treturn new " + var_name + "(ptr, (bindings." + struct_name + "." + var_name + ")raw_val);\n")
+ init_meth_jty_str = ""
+ init_meth_params = ""
+ init_meth_body = ""
+ hu_conv_body = ""
+ if "LDK" + var_name in union_enum_items:
+ enum_var_lines = union_enum_items["LDK" + var_name]
+ for idx, field in enumerate(enum_var_lines):
+ if idx != 0 and idx < len(enum_var_lines) - 2:
+ field_ty = map_type(field.strip(' ;'), False, None, False, True)
+ out_java.write("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.arg_name + ";\n")
+ java_hu_subclasses = java_hu_subclasses + "\t\tpublic final " + field_ty.java_hu_ty + " " + field_ty.arg_name + ";\n"
+ if field_ty.to_hu_conv is not None:
+ hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.java_ty + " " + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
+ hu_conv_body = hu_conv_body + "\t\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
+ hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
+ else:
+ hu_conv_body = hu_conv_body + "\t\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
+ init_meth_jty_str = init_meth_jty_str + field_ty.java_fn_ty_arg
+ if idx > 1:
+ init_meth_params = init_meth_params + ", "
+ init_meth_params = init_meth_params + field_ty.java_ty + " " + field_ty.arg_name
+ init_meth_body = init_meth_body + "this." + field_ty.arg_name + " = " + field_ty.arg_name + "; "
+ out_java.write("\t\t\t" + var_name + "(" + init_meth_params + ") { ")
+ out_java.write(init_meth_body)
+ out_java.write("}\n")
+ out_java.write("\t\t}\n")
+ out_java_enum.write("\t\t}\n")
+ java_hu_subclasses = java_hu_subclasses + "\t\tprivate " + var_name + "(long ptr, bindings." + struct_name + "." + var_name + " obj) {\n\t\t\tsuper(null, ptr);\n"
+ java_hu_subclasses = java_hu_subclasses + hu_conv_body
+ java_hu_subclasses = java_hu_subclasses + "\t\t}\n\t}\n"
+ init_meth_jty_strs[var_name] = init_meth_jty_str
+ out_java.write("\t\tstatic native void init();\n")
+ out_java.write("\t}\n")
+ out_java_enum.write("\t\tassert false; return null; // Unreachable without extending the (internal) bindings interface\n\t}\n\n")
+ out_java_enum.write(java_hu_subclasses)
+ out_java.write("\tstatic { " + struct_name + ".init(); }\n")
+ out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n");
+
+ write_c(consts.c_complex_enum_pfx(struct_name, [x.strip(", ")[len(struct_name) + 1:] for x in tag_field_lines[1:-3]], init_meth_jty_strs))
+
+ write_c(consts.c_fn_ty_pfx + consts.c_complex_enum_pass_ty(struct_name) + " " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " ptr) {\n")
+ write_c("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n")
+ write_c("\tswitch(obj->tag) {\n")
+ for idx, struct_line in enumerate(tag_field_lines):
+ if idx != 0 and idx < len(tag_field_lines) - 3:
+ var_name = struct_line.strip(' ,')[len(struct_name) + 1:]
+ write_c("\t\tcase " + struct_name + "_" + var_name + ": {\n")
+ c_params = []
+ if "LDK" + var_name in union_enum_items:
+ enum_var_lines = union_enum_items["LDK" + var_name]
+ for idx, field in enumerate(enum_var_lines):
+ if idx != 0 and idx < len(enum_var_lines) - 2:
+ field_map = map_type(field.strip(' ;'), False, None, False, True)
+ if field_map.ret_conv is not None:
+ write_c("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
+ write_c("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name)
+ write_c(field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
+ c_params.append(field_map.ret_conv_name)
+ else:
+ c_params.append("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name)
+ write_c("\t\t\treturn " + consts.c_constr_native_complex_enum(struct_name, var_name, c_params) + ";\n")
+ write_c("\t\t}\n")
+ write_c("\t\tdefault: abort();\n")
+ write_c("\t}\n}\n")
+ out_java_enum.write("}\n")
+
+ def map_trait(struct_name, field_var_lines, trait_fn_lines):
+ with open(f"{path_to_bindings_directory}/structs/{struct_name.replace('LDK', '')}.{consts.file_extension}", "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(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 = 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 = 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))
+
+ write_c(consts.native_c_map_trait(struct_name, field_var_convs, field_fns)[1])
+
+ out_java_trait.write(consts.hu_struct_file_prefix)
+ out_java_trait.write("public class " + struct_name.replace("LDK","") + " extends CommonBase {\n")
+ out_java_trait.write("\tfinal bindings." + struct_name + " bindings_instance;\n")
+ out_java_trait.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); bindings_instance = null; }\n")
+ out_java_trait.write("\tprivate " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ out_java_trait.write(", bindings." + var_line.group(1) + " " + var_line.group(2))
+ else:
+ out_java_trait.write(", " + field_var_convs[idx].java_hu_ty + " " + var_line.group(2))
+ out_java_trait.write(") {\n")
+ out_java_trait.write("\t\tsuper(bindings." + struct_name + "_new(arg")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ out_java_trait.write(", " + var_line.group(2))
+ elif field_var_convs[idx].from_hu_conv is not None:
+ out_java_trait.write(", " + field_var_convs[idx].from_hu_conv[0])
+ else:
+ out_java_trait.write(", " + var_line.group(2))
+ out_java_trait.write("));\n")
+ out_java_trait.write("\t\tthis.ptrs_to.add(arg);\n")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ out_java_trait.write("\t\tthis.ptrs_to.add(" + var_line.group(2) + ");\n")
+ elif field_var_convs[idx].from_hu_conv is not None and field_var_convs[idx].from_hu_conv[1] != "":
+ out_java_trait.write("\t\t" + field_var_convs[idx].from_hu_conv[1] + ";\n")
+ out_java_trait.write("\t\tthis.bindings_instance = arg;\n")
+ out_java_trait.write("\t}\n")
+ out_java_trait.write("\t@Override @SuppressWarnings(\"deprecation\")\n")
+ out_java_trait.write("\tprotected void finalize() throws Throwable {\n")
+ out_java_trait.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n")
+ out_java_trait.write("\t}\n\n")
+
+ java_trait_constr = "\tprivate static class " + struct_name + "Holder { " + struct_name.replace("LDK", "") + " held; }\n"
+ java_trait_constr = java_trait_constr + "\tpublic static " + struct_name.replace("LDK", "") + " new_impl(" + struct_name.replace("LDK", "") + "Interface arg"
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ # Ideally we'd be able to take any instance of the interface, but our C code can only represent
+ # Java-implemented version, so we require users pass a Java implementation here :/
+ java_trait_constr = java_trait_constr + ", " + var_line.group(1).replace("LDK", "") + "." + var_line.group(1).replace("LDK", "") + "Interface " + var_line.group(2) + "_impl"
+ else:
+ java_trait_constr = java_trait_constr + ", " + field_var_convs[idx].java_hu_ty + " " + var_line.group(2)
+ java_trait_constr = java_trait_constr + ") {\n\t\tfinal " + struct_name + "Holder impl_holder = new " + struct_name + "Holder();\n"
+ java_trait_constr = java_trait_constr + "\t\timpl_holder.held = new " + struct_name.replace("LDK", "") + "(new bindings." + struct_name + "() {\n"
+ out_java_trait.write("\tpublic static interface " + struct_name.replace("LDK", "") + "Interface {\n")
+ out_java.write("\tpublic interface " + struct_name + " {\n")
+ java_meths = []
+ for fn_line in trait_fn_lines:
+ java_meth_descr = "("
+ if fn_line.group(3) != "free" and fn_line.group(3) != "clone":
+ ret_ty_info = map_type(fn_line.group(2), True, None, False, False)
+
+ out_java.write("\t\t " + ret_ty_info.java_ty + " " + fn_line.group(3) + "(")
+ java_trait_constr = java_trait_constr + "\t\t\t@Override public " + ret_ty_info.java_ty + " " + fn_line.group(3) + "("
+ out_java_trait.write("\t\t" + ret_ty_info.java_hu_ty + " " + fn_line.group(3) + "(")
+ is_const = fn_line.group(4) is not None
+
+ arg_names = []
+ for idx, arg in enumerate(fn_line.group(5).split(',')):
+ if arg == "":
+ continue
+ if idx >= 2:
+ out_java.write(", ")
+ java_trait_constr = java_trait_constr + ", "
+ out_java_trait.write(", ")
+ arg_conv_info = map_type(arg, True, None, False, False)
+ out_java.write(arg_conv_info.java_ty + " " + arg_conv_info.arg_name)
+ out_java_trait.write(arg_conv_info.java_hu_ty + " " + arg_conv_info.arg_name)
+ java_trait_constr = java_trait_constr + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
+ arg_names.append(arg_conv_info)
+ java_meth_descr = java_meth_descr + arg_conv_info.java_fn_ty_arg
+ java_meth_descr = java_meth_descr + ")" + ret_ty_info.java_fn_ty_arg
+ java_meths.append((fn_line, java_meth_descr))
+
+ out_java.write(");\n")
+ out_java_trait.write(");\n")
+ java_trait_constr = java_trait_constr + ") {\n"
+
+ for arg_info in arg_names:
+ if arg_info.to_hu_conv is not None:
+ java_trait_constr = java_trait_constr + "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
+
+ if ret_ty_info.java_ty != "void":
+ java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.java_hu_ty + " ret = arg." + fn_line.group(3) + "("
+ else:
+ java_trait_constr = java_trait_constr + "\t\t\t\targ." + fn_line.group(3) + "("
+
+ for idx, arg_info in enumerate(arg_names):
+ if idx != 0:
+ java_trait_constr = java_trait_constr + ", "
+ if arg_info.to_hu_conv_name is not None:
+ java_trait_constr = java_trait_constr + arg_info.to_hu_conv_name
+ else:
+ java_trait_constr = java_trait_constr + arg_info.arg_name
+
+ java_trait_constr = java_trait_constr + ");\n"
+ if ret_ty_info.java_ty != "void":
+ if ret_ty_info.from_hu_conv is not None:
+ java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.java_ty + " result = " + ret_ty_info.from_hu_conv[0] + ";\n"
+ if ret_ty_info.from_hu_conv[1] != "":
+ java_trait_constr = java_trait_constr + "\t\t\t\t" + ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
+ if ret_ty_info.rust_obj in result_types:
+ # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
+ java_trait_constr = java_trait_constr + "\t\t\t\tret.ptr = 0;\n"
+ java_trait_constr = java_trait_constr + "\t\t\t\treturn result;\n"
+ else:
+ java_trait_constr = java_trait_constr + "\t\t\t\treturn ret;\n"
+ java_trait_constr = java_trait_constr + "\t\t\t}\n"
+ java_trait_constr = java_trait_constr + "\t\t}"
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ java_trait_constr = java_trait_constr + ", " + var_line.group(2) + ".new_impl(" + var_line.group(2) + "_impl).bindings_instance"
+ else:
+ java_trait_constr = java_trait_constr + ", " + var_line.group(2)
+ out_java_trait.write("\t}\n")
+ out_java_trait.write(java_trait_constr + ");\n\t\treturn impl_holder.held;\n\t}\n")
+
+ # Write out a clone function whether we need one or not, as we use them in moving to rust
+ write_c("static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n")
+ write_c("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
+ write_c("\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ write_c("\tatomic_fetch_add_explicit(&j_calls->" + var_line.group(2) + "->refcnt, 1, memory_order_release);\n")
+ write_c("\treturn (void*) this_arg;\n")
+ write_c("}\n")
+
+ out_java.write("\t}\n")
+
+ out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl")
+ write_c("static inline " + struct_name + " " + struct_name + "_init (" + consts.c_fn_args_pfx + ", jobject o")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ out_java.write(", " + var_line.group(1) + " " + var_line.group(2))
+ write_c(", jobject " + var_line.group(2))
+ else:
+ out_java.write(", " + field_var_convs[idx].java_ty + " " + var_line.group(2))
+ write_c(", " + field_var_convs[idx].c_ty + " " + var_line.group(2))
+ out_java.write(");\n")
+ write_c(") {\n")
+
+ write_c("\tjclass c = (*env)->GetObjectClass(env, o);\n")
+ write_c("\tCHECK(c != NULL);\n")
+ write_c("\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n")
+ write_c("\tatomic_init(&calls->refcnt, 1);\n")
+ write_c("\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n")
+ write_c("\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n")
+ for (fn_line, java_meth_descr) in java_meths:
+ if fn_line.group(3) != "free" and fn_line.group(3) != "clone":
+ write_c("\tcalls->" + fn_line.group(3) + "_meth = (*env)->GetMethodID(env, c, \"" + fn_line.group(3) + "\", \"" + java_meth_descr + "\");\n")
+ write_c("\tCHECK(calls->" + fn_line.group(3) + "_meth != NULL);\n")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) not in trait_structs and field_var_convs[idx].arg_conv is not None:
+ write_c("\n\t" + field_var_convs[idx].arg_conv.replace("\n", "\n\t") +"\n")
+ write_c("\n\t" + struct_name + " ret = {\n")
+ write_c("\t\t.this_arg = (void*) calls,\n")
+ for fn_line in trait_fn_lines:
+ if fn_line.group(3) != "free" and fn_line.group(3) != "clone":
+ write_c("\t\t." + fn_line.group(3) + " = " + fn_line.group(3) + "_jcall,\n")
+ elif fn_line.group(3) == "free":
+ write_c("\t\t.free = " + struct_name + "_JCalls_free,\n")
+ else:
+ write_c("\t\t.clone = " + struct_name + "_JCalls_clone,\n")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ write_c("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, clz, " + var_line.group(2) + "),\n")
+ elif field_var_convs[idx].arg_conv_name is not None:
+ write_c("\t\t." + var_line.group(2) + " = " + field_var_convs[idx].arg_conv_name + ",\n")
+ write_c("\t\t.set_" + var_line.group(2) + " = NULL,\n")
+ else:
+ write_c("\t\t." + var_line.group(2) + " = " + var_line.group(2) + ",\n")
+ write_c("\t\t.set_" + var_line.group(2) + " = NULL,\n")
+ write_c("\t};\n")
+ for var_line in field_var_lines:
+ if var_line.group(1) in trait_structs:
+ write_c("\tcalls->" + var_line.group(2) + " = ret." + var_line.group(2) + ".this_arg;\n")
+ write_c("\treturn ret;\n")
+ write_c("}\n")
+
+ write_c(consts.c_fn_ty_pfx + "long " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new (" + consts.c_fn_args_pfx + ", jobject o")
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) in trait_structs:
+ write_c(", jobject " + var_line.group(2))
+ else:
+ write_c(", " + field_var_convs[idx].c_ty + " " + var_line.group(2))
+ write_c(") {\n")
+ write_c("\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
+ write_c("\t*res_ptr = " + struct_name + "_init(env, clz, o")
+ for var_line in field_var_lines:
+ write_c(", " + var_line.group(2))
+ write_c(");\n")
+ write_c("\treturn (long)res_ptr;\n")
+ write_c("}\n")
+
+ out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n")
+ write_c(consts.c_fn_ty_pfx + "jobject " + consts.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (" + consts.c_fn_args_pfx + ", " + consts.ptr_c_ty + " val) {\n")
+ write_c("\tjobject ret = (*env)->NewLocalRef(env, ((" + struct_name + "_JCalls*)val)->o);\n")
+ write_c("\tCHECK(ret != NULL);\n")
+ write_c("\treturn ret;\n")
+ write_c("}\n")
+
+ 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"{path_to_bindings_directory}/structs/{human_ty}.{consts.file_extension}", "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 = map_type(res_ty + " res", True, None, False, True)
+ err_map = 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 = 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 = 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("""package org.ldk.impl;
+import org.ldk.enums.*;
public class bindings {
+ public static class VecOrSliceDef {
+ public long dataptr;
+ public long datalen;
+ public long stride;
+ public VecOrSliceDef(long dataptr, long datalen, long stride) {
+ this.dataptr = dataptr; this.datalen = datalen; this.stride = stride;
+ }
+ }
static {
System.loadLibrary(\"lightningjni\");
+ init(java.lang.Enum.class, VecOrSliceDef.class);
+ init_class_cache();
}
+ static native void init(java.lang.Class c, java.lang.Class slicedef);
+ static native void init_class_cache();
+
+ public static native boolean deref_bool(long ptr);
+ public static native long deref_long(long ptr);
+ public static native void free_heap_ptr(long ptr);
+ public static native byte[] read_bytes(long ptr, long len);
+ public static native byte[] get_u8_slice_bytes(long slice_ptr);
+ public static native long bytes_to_u8_vec(byte[] bytes);
+ public static native long new_txpointer_copy_data(byte[] txdata);
+ public static native void txpointer_free(long ptr);
+ public static native byte[] txpointer_get_buffer(long ptr);
+ public static native long vec_slice_len(long vec);
+ public static native long new_empty_slice_vec();
""")
- 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 recursiveOpenFile(f"{path_to_bindings_directory}/structs/CommonBase.{consts.file_extension}", "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) + "(/* TODO */);\n")
-
- out_c.write(c_ty + " " + fn_line.group(2) + "_jcall(void* this_arg/* TODO */) {\n")
- out_c.write("\t" + struct_name + "_JCalls *arg = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\treturn (*arg->env)->Call" + java_ty.title() + "Method(arg->env, arg->o, arg->" + fn_line.group(2) + "_meth);\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 *arg = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\t(*arg->env)->DeleteGlobalRef(arg->env, arg->o);\n")
- out_c.write("\tfree(arg);\n")
- out_c.write("}\n")
- elif fn_line.group(2) == "clone":
- out_c.write("void* " + struct_name + "_JCalls_clone(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"{path_to_bindings_directory}/structs/{struct_name.replace('LDK', '')}.{consts.file_extension}", "w") as out_java_struct:
+ out_java_struct.write(consts.hu_struct_file_prefix)
+ out_java_struct.write("public class " + struct_name.replace("LDK","") + " extends CommonBase")
+ if struct_name.startswith("LDKLocked"):
+ out_java_struct.write(" implements AutoCloseable")
+ out_java_struct.write(" {\n")
+ out_java_struct.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n")
+ if struct_name.startswith("LDKLocked"):
+ out_java_struct.write("\t@Override public void close() {\n")
+ else:
+ 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." + struct_name.replace("LDK","") + "_free(ptr); }\n")
+ out_java_struct.write("\t}\n\n")
+ 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 = 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"{path_to_bindings_directory}/structs/TxOut.{consts.file_extension}", "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
assert(line == "\n")
out_java.write("}\n")
+ for struct_name in opaque_structs:
+ with open(f"{path_to_bindings_directory}/structs/{struct_name.replace('LDK', '')}.{consts.file_extension}", "a") as out_java_struct:
+ out_java_struct.write("}\n")
+ for struct_name in trait_structs:
+ with open(f"{path_to_bindings_directory}/structs/{struct_name.replace('LDK', '')}.{consts.file_extension}", "a") as out_java_struct:
+ out_java_struct.write("}\n")
+with open(path_to_c_file, "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)
+