#!/usr/bin/env python3
import sys, re
-if len(sys.argv) != 6:
- print("USAGE: /path/to/lightning.h /path/to/bindings/output.java /path/to/bindings/ /path/to/bindings/output.c debug")
+if len(sys.argv) < 7:
+ print("USAGE: /path/to/lightning.h /path/to/bindings/output /path/to/bindings/ /path/to/bindings/output.c debug lang")
+ sys.exit(1)
+
+if sys.argv[5] == "false":
+ DEBUG = False
+elif sys.argv[5] == "true":
+ DEBUG = True
+else:
print("debug should be true or false and indicates whether to track allocations and ensure we don't leak")
sys.exit(1)
-class TypeInfo:
- def __init__(self, rust_obj, java_ty, java_fn_ty_arg, c_ty, passed_as_ptr, is_ptr, var_name, arr_len, arr_access):
- self.rust_obj = rust_obj
- self.java_ty = java_ty
- self.java_fn_ty_arg = java_fn_ty_arg
- self.c_ty = c_ty
- self.passed_as_ptr = passed_as_ptr
- self.is_ptr = is_ptr
- self.var_name = var_name
- self.arr_len = arr_len
- self.arr_access = arr_access
-
-class ConvInfo:
- def __init__(self, ty_info, arg_name, arg_conv, arg_conv_name, arg_conv_cleanup, ret_conv, ret_conv_name):
- assert(ty_info.c_ty is not None)
- assert(ty_info.java_ty is not None)
- assert(arg_name is not None)
- self.passed_as_ptr = ty_info.passed_as_ptr
- self.rust_obj = ty_info.rust_obj
- self.c_ty = ty_info.c_ty
- self.java_ty = ty_info.java_ty
- self.java_fn_ty_arg = ty_info.java_fn_ty_arg
- self.arg_name = arg_name
- self.arg_conv = arg_conv
- self.arg_conv_name = arg_conv_name
- self.arg_conv_cleanup = arg_conv_cleanup
- self.ret_conv = ret_conv
- self.ret_conv_name = ret_conv_name
-
- def print_ty(self):
- out_c.write(self.c_ty)
- out_java.write(self.java_ty)
-
- def print_name(self):
- if self.arg_name != "":
- out_java.write(" " + self.arg_name)
- out_c.write(" " + self.arg_name)
+target = None
+if sys.argv[6] == "java" or sys.argv[6] == "android":
+ import java_strings
+ from java_strings import Consts
+ target = java_strings.Target.JAVA
+ if sys.argv[6] == "android":
+ target = java_strings.Target.ANDROID
+elif sys.argv[6] == "typescript":
+ import typescript_strings
+ from typescript_strings import Consts
+ target = typescript_strings.Target.NODEJS
+ if len(sys.argv) == 8 and sys.argv[7] == 'browser':
+ target = typescript_strings.Target.BROWSER
+else:
+ print("Only java or typescript can be set for lang")
+ sys.exit(1)
+
+
+consts = Consts(DEBUG, target=target)
+
+from bindingstypes import *
+
+c_file = ""
+def write_c(s):
+ global c_file
+ c_file += s
+
+def camel_to_snake(s):
+ # Convert camel case to snake case, in a way that appears to match cbindgen
+ con = "_"
+ ret = ""
+ lastchar = ""
+ lastund = False
+ for char in s:
+ if lastchar.isupper():
+ if not char.isupper() and not lastund:
+ ret = ret + "_"
+ lastund = True
+ else:
+ lastund = False
+ ret = ret + lastchar.lower()
+ else:
+ ret = ret + lastchar
+ if char.isupper() and not lastund:
+ ret = ret + "_"
+ lastund = True
+ else:
+ lastund = False
+ lastchar = char
+ if char.isnumeric():
+ lastund = True
+ return (ret + lastchar.lower()).strip("_")
+
+unitary_enums = set()
+complex_enums = set()
+opaque_structs = set()
+trait_structs = {}
+result_types = set()
+tuple_types = {}
+
+var_is_arr_regex = re.compile("\(\*([A-za-z0-9_]*)\)\[([a-z0-9]*)\]")
+var_ty_regex = re.compile("([A-za-z_0-9]*)(.*)")
+java_c_types_none_allowed = True # Unset when we do the real pass that populates the above sets
+def java_c_types(fn_arg, ret_arr_len):
+ fn_arg = fn_arg.strip()
+ if fn_arg.startswith("MUST_USE_RES "):
+ fn_arg = fn_arg[13:]
+ is_const = False
+ if fn_arg.startswith("const "):
+ fn_arg = fn_arg[6:]
+ is_const = True
+ if fn_arg.startswith("struct "):
+ fn_arg = fn_arg[7:]
+ if fn_arg.startswith("enum "):
+ fn_arg = fn_arg[5:]
+ nonnull_ptr = "NONNULL_PTR" in fn_arg
+ fn_arg = fn_arg.replace("NONNULL_PTR", "")
+
+ is_ptr = False
+ take_by_ptr = False
+ rust_obj = None
+ arr_access = None
+ java_hu_ty = None
+ if fn_arg.startswith("LDKThirtyTwoBytes"):
+ fn_arg = "uint8_t (*" + fn_arg[18:] + ")[32]"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ rust_obj = "LDKThirtyTwoBytes"
+ arr_access = "data"
+ elif fn_arg.startswith("LDKTxid"):
+ fn_arg = "uint8_t (*" + fn_arg[8:] + ")[32]"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ rust_obj = "LDKThirtyTwoBytes"
+ arr_access = "data"
+ elif fn_arg.startswith("LDKPublicKey"):
+ fn_arg = "uint8_t (*" + fn_arg[13:] + ")[33]"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ rust_obj = "LDKPublicKey"
+ arr_access = "compressed_form"
+ elif fn_arg.startswith("LDKSecretKey"):
+ fn_arg = "uint8_t (*" + fn_arg[13:] + ")[32]"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ rust_obj = "LDKSecretKey"
+ arr_access = "bytes"
+ elif fn_arg.startswith("LDKSignature"):
+ fn_arg = "uint8_t (*" + fn_arg[13:] + ")[64]"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ rust_obj = "LDKSignature"
+ arr_access = "compact_form"
+ elif fn_arg.startswith("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 ") or fn_arg == "LDKTransaction":
+ fn_arg = "uint8_t (*" + fn_arg[15:] + ")[datalen]"
+ rust_obj = "LDKTransaction"
+ assert var_is_arr_regex.match(fn_arg[8:])
+ arr_access = "data"
+ elif fn_arg.startswith("LDKCVec_"):
+ is_ptr = False
+ if "*" in fn_arg:
+ fn_arg = fn_arg.replace("*", "")
+ is_ptr = True
+
+ tyn = fn_arg[8:].split(" ")
+ assert tyn[0].endswith("Z")
+ if tyn[0] == "u64Z":
+ new_arg = "uint64_t"
+ else:
+ 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,
+ nonnull_ptr=nonnull_ptr, is_const=is_const,
+ var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False)
else:
- out_java.write(" arg")
- out_c.write(" arg")
+ 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,
+ nonnull_ptr=nonnull_ptr, is_const=is_const,
+ var_name=res.var_name, arr_len="datalen", arr_access="data", subty=res, is_native_primitive=False)
+
+ is_primitive = False
+ arr_len = None
+ mapped_type = []
+ java_type_plural = None
+ if fn_arg.startswith("void"):
+ java_ty = "void"
+ c_ty = "void"
+ fn_ty_arg = "V"
+ fn_arg = fn_arg[4:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("bool"):
+ java_ty = "boolean"
+ c_ty = "jboolean"
+ fn_ty_arg = "Z"
+ fn_arg = fn_arg[4:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint8_t"):
+ mapped_type = consts.c_type_map['uint8_t']
+ java_ty = mapped_type[0]
+ c_ty = "int8_t"
+ fn_ty_arg = "B"
+ fn_arg = fn_arg[7:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint16_t"):
+ mapped_type = consts.c_type_map['uint16_t']
+ java_ty = mapped_type[0]
+ c_ty = "int16_t"
+ fn_ty_arg = "S"
+ fn_arg = fn_arg[8:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint32_t"):
+ mapped_type = consts.c_type_map['uint32_t']
+ java_ty = mapped_type[0]
+ c_ty = "int32_t"
+ fn_ty_arg = "I"
+ fn_arg = fn_arg[8:].strip()
+ is_primitive = True
+ elif fn_arg.startswith("uint64_t") or fn_arg.startswith("uintptr_t"):
+ # TODO: uintptr_t is arch-dependent :(
+ mapped_type = consts.c_type_map['uint64_t']
+ java_ty = mapped_type[0]
+ fn_ty_arg = "J"
+ if fn_arg.startswith("uint64_t"):
+ c_ty = "int64_t"
+ fn_arg = fn_arg[8:].strip()
+ else:
+ c_ty = "int64_t"
+ rust_obj = "uintptr_t"
+ fn_arg = fn_arg[9:].strip()
+ is_primitive = True
+ elif is_const and fn_arg.startswith("char *"):
+ java_ty = "String"
+ c_ty = "const char*"
+ fn_ty_arg = "Ljava/lang/String;"
+ fn_arg = fn_arg[6:].strip()
+ elif fn_arg.startswith("LDKStr"):
+ java_ty = "String"
+ c_ty = "jstring"
+ fn_ty_arg = "Ljava/lang/String;"
+ fn_arg = fn_arg[6:].strip()
+ arr_access = "chars"
+ arr_len = "len"
+ else:
+ ma = var_ty_regex.match(fn_arg)
+ if ma.group(1).strip() in unitary_enums:
+ java_ty = ma.group(1).strip()
+ c_ty = consts.result_c_ty
+ fn_ty_arg = "Lorg/ldk/enums/" + ma.group(1).strip() + ";"
+ fn_arg = ma.group(2).strip()
+ rust_obj = ma.group(1).strip()
+ elif ma.group(1).strip().startswith("LDKC2Tuple"):
+ c_ty = consts.ptr_c_ty
+ java_ty = consts.ptr_native_ty
+ java_hu_ty = "TwoTuple<"
+ if not ma.group(1).strip() in tuple_types:
+ assert java_c_types_none_allowed
+ return None
+ for idx, ty_info in enumerate(tuple_types[ma.group(1).strip()][0]):
+ if idx != 0:
+ java_hu_ty = java_hu_ty + ", "
+ if ty_info.is_native_primitive:
+ if ty_info.java_hu_ty == "int":
+ java_hu_ty = java_hu_ty + "Integer" # Java concrete integer type is Integer, not Int
+ else:
+ 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("LDKCOption", "Option").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"
+
+ var_is_arr = var_is_arr_regex.match(fn_arg)
+ if var_is_arr is not None or ret_arr_len is not None:
+ assert(not take_by_ptr)
+ assert(not is_ptr)
+ # is there a special case for plurals?
+ if len(mapped_type) == 2:
+ java_ty = mapped_type[1]
+ else:
+ java_ty = java_ty + "[]"
+ c_ty = c_ty + "Array"
+ if var_is_arr is not None:
+ if var_is_arr.group(1) == "":
+ return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_hu_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty, is_const=is_const,
+ passed_as_ptr=False, is_ptr=False, nonnull_ptr=nonnull_ptr, 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, nonnull_ptr=nonnull_ptr, 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, nonnull_ptr=nonnull_ptr, var_name=fn_arg, arr_len=arr_len, arr_access=arr_access, is_native_primitive=is_primitive)
+
fn_ptr_regex = re.compile("^extern const ([A-Za-z_0-9\* ]*) \(\*(.*)\)\((.*)\);$")
fn_ret_arr_regex = re.compile("(.*) \(\*(.*)\((.*)\)\)\[([0-9]*)\];$")
reg_fn_regex = re.compile("([A-Za-z_0-9\* ]* \*?)([a-zA-Z_0-9]*)\((.*)\);$")
clone_fns = set()
+constructor_fns = {}
+
+from gen_type_mapping import TypeMappingGenerator
+type_mapping_generator = TypeMappingGenerator(java_c_types, consts, opaque_structs, clone_fns, unitary_enums, trait_structs, complex_enums, result_types, tuple_types)
+
with open(sys.argv[1]) as in_h:
for line in in_h:
reg_fn = reg_fn_regex.match(line)
if reg_fn is not None:
if reg_fn.group(2).endswith("_clone"):
clone_fns.add(reg_fn.group(2))
+ else:
+ rty = java_c_types(reg_fn.group(1), None)
+ if rty is not None and not rty.is_native_primitive and reg_fn.group(2) == rty.java_hu_ty + "_new":
+ constructor_fns[rty.rust_obj] = reg_fn.group(3)
continue
arr_fn = fn_ret_arr_regex.match(line)
if arr_fn is not None:
if arr_fn.group(2).endswith("_clone"):
clone_fns.add(arr_fn.group(2))
+ # No object constructors return arrays, as then they wouldn't be an object constructor
continue
-with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java, open(sys.argv[4], "w") as out_c:
- opaque_structs = set()
- trait_structs = set()
- unitary_enums = set()
-
- def camel_to_snake(s):
- # Convert camel case to snake case, in a way that appears to match cbindgen
- con = "_"
- ret = ""
- lastchar = ""
- lastund = False
- for char in s:
- if lastchar.isupper():
- if not char.isupper() and not lastund:
- ret = ret + "_"
- lastund = True
- else:
- lastund = False
- ret = ret + lastchar.lower()
- else:
- ret = ret + lastchar
- if char.isupper() and not lastund:
- ret = ret + "_"
- lastund = True
- else:
- lastund = False
- lastchar = char
- if char.isnumeric():
- lastund = True
- return (ret + lastchar.lower()).strip("_")
-
- var_is_arr_regex = re.compile("\(\*([A-za-z0-9_]*)\)\[([a-z0-9]*)\]")
- 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:]
- is_const = False
- if fn_arg.startswith("const "):
- fn_arg = fn_arg[6:]
- is_const = True
-
- is_ptr = False
- take_by_ptr = False
- rust_obj = None
- arr_access = 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"
- if 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"
- if 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"
- if 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"
- if 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"
- if 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"
-
- if fn_arg.startswith("void"):
- java_ty = "void"
- c_ty = "void"
- fn_ty_arg = "V"
- fn_arg = fn_arg[4:].strip()
- elif fn_arg.startswith("bool"):
- java_ty = "boolean"
- c_ty = "jboolean"
- fn_ty_arg = "Z"
- fn_arg = fn_arg[4:].strip()
- elif fn_arg.startswith("uint8_t"):
- java_ty = "byte"
- c_ty = "jbyte"
- fn_ty_arg = "B"
- fn_arg = fn_arg[7:].strip()
- elif fn_arg.startswith("uint16_t"):
- java_ty = "short"
- c_ty = "jshort"
- fn_ty_arg = "S"
- fn_arg = fn_arg[8:].strip()
- elif fn_arg.startswith("uint32_t"):
- java_ty = "int"
- c_ty = "jint"
- fn_ty_arg = "I"
- fn_arg = fn_arg[8:].strip()
- elif fn_arg.startswith("uint64_t") or fn_arg.startswith("uintptr_t"):
- java_ty = "long"
- c_ty = "jlong"
- fn_ty_arg = "J"
- if fn_arg.startswith("uint64_t"):
- fn_arg = fn_arg[8:].strip()
- else:
- fn_arg = fn_arg[9:].strip()
- 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()
- else:
- ma = var_ty_regex.match(fn_arg)
- if ma.group(1).strip() in unitary_enums:
- java_ty = ma.group(1).strip()
- c_ty = "jclass"
- fn_ty_arg = "Lorg/ldk/enums/" + ma.group(1).strip() + ";"
- fn_arg = ma.group(2).strip()
- rust_obj = ma.group(1).strip()
- take_by_ptr = True
- else:
- java_ty = "long"
- c_ty = "jlong"
- 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 = "jlong"
- java_ty = "long"
- fn_ty_arg = "J"
-
- 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_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty,
- passed_as_ptr=False, is_ptr=False, var_name="arg", arr_len=var_is_arr.group(2), arr_access=arr_access)
- return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_fn_ty_arg="[" + fn_ty_arg, c_ty=c_ty,
- 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)
- return TypeInfo(rust_obj=rust_obj, java_ty=java_ty, java_fn_ty_arg=fn_ty_arg, c_ty=c_ty, passed_as_ptr=is_ptr or take_by_ptr,
- is_ptr=is_ptr, var_name=fn_arg, arr_len=None, arr_access=None)
-
- def map_type(fn_arg, print_void, ret_arr_len, is_free):
- ty_info = java_c_types(fn_arg, ret_arr_len)
-
- 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)
-
- 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(ty_info.c_ty == "jbyteArray")
- ret_conv = ("jbyteArray " + arr_name + "_arr = (*_env)->NewByteArray(_env, " + arr_len + ");\n" + "(*_env)->SetByteArrayRegion(_env, " + arr_name + "_arr, 0, " + arr_len + ", ", "")
- 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." + ty_info.arr_access + " = (*_env)->GetByteArrayElements (_env, " + arr_name + ", NULL);\n"
- arg_conv = arg_conv + arr_name + "_ref." + arr_len + " = (*_env)->GetArrayLength (_env, " + arr_name + ");"
- arg_conv_cleanup = "(*_env)->ReleaseByteArrayElements(_env, " + arr_name + ", (int8_t*)" + arr_name + "_ref." + ty_info.arr_access + ", 0);"
- arr_access = "." + ty_info.arr_access
- ret_conv = (ty_info.rust_obj + " " + arr_name + "_var = ", "")
- ret_conv = (ret_conv[0], ";\njbyteArray " + arr_name + "_arr = (*_env)->NewByteArray(_env, " + arr_name + "_var." + arr_len + ");\n")
- ret_conv = (ret_conv[0], ret_conv[1] + "(*_env)->SetByteArrayRegion(_env, " + arr_name + "_arr, 0, " + arr_name + "_var." + arr_len + ", " + arr_name + "_var." + ty_info.arr_access + ");")
- elif ty_info.rust_obj is not None:
- arg_conv = ty_info.rust_obj + " " + arr_name + "_ref;\n"
- arg_conv = arg_conv + "CHECK((*_env)->GetArrayLength (_env, " + arr_name + ") == " + arr_len + ");\n"
- arg_conv = arg_conv + "(*_env)->GetByteArrayRegion (_env, " + arr_name + ", 0, " + arr_len + ", " + arr_name + "_ref." + ty_info.arr_access + ");"
- ret_conv = (ret_conv[0], "." + ty_info.arr_access + ");")
- else:
- arg_conv = "unsigned char " + arr_name + "_arr[" + arr_len + "];\n"
- arg_conv = arg_conv + "CHECK((*_env)->GetArrayLength (_env, " + arr_name + ") == " + arr_len + ");\n"
- arg_conv = arg_conv + "(*_env)->GetByteArrayRegion (_env, " + arr_name + ", 0, " + arr_len + ", " + arr_name + "_arr);\n" + "unsigned char (*" + arr_name + "_ref)[" + arr_len + "] = &" + arr_name + "_arr;"
- ret_conv = (ret_conv[0] + "*", ");")
- 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")
- elif ty_info.var_name != "":
- # If we have a parameter name, print it (noting that it may indicate its a pointer)
- if ty_info.rust_obj is not None:
- assert(ty_info.passed_as_ptr)
- 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"
- 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 ty_info.is_ptr and not is_free:
- 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!"
- if not ty_info.is_ptr:
- if ty_info.rust_obj in unitary_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 + "_from_java(_env, " + ty_info.var_name + ");",
- arg_conv_name = ty_info.var_name + "_conv",
- arg_conv_cleanup = None,
- ret_conv = ("jclass " + ty_info.var_name + "_conv = " + ty_info.rust_obj + "_to_java(_env, ", ");"),
- ret_conv_name = ty_info.var_name + "_conv")
- if ty_info.rust_obj in opaque_structs:
- ret_conv_suf = ";\nCHECK((((long)" + ty_info.var_name + "_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.\n"
- ret_conv_suf = ret_conv_suf + "CHECK((((long)&" + ty_info.var_name + "_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.\n"
- ret_conv_suf = ret_conv_suf + "long " + ty_info.var_name + "_ref;\n"
- ret_conv_suf = ret_conv_suf + "if (" + ty_info.var_name + "_var.is_owned) {\n"
- ret_conv_suf = ret_conv_suf + "\t" + ty_info.var_name + "_ref = (long)" + ty_info.var_name + "_var.inner | 1;\n"
- ret_conv_suf = ret_conv_suf + "} else {\n"
- ret_conv_suf = ret_conv_suf + "\t" + ty_info.var_name + "_ref = (long)&" + ty_info.var_name + "_var;\n"
- ret_conv_suf = ret_conv_suf + "}"
- 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 = ", ret_conv_suf),
- ret_conv_name = ty_info.var_name + "_ref")
- 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:
- 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}"
- 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 = ("CANT PASS TRAIT TO Java?", ""), ret_conv_name = "NO CONV POSSIBLE")
- 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 + ");";
- 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")
- else:
- assert(not is_free)
- if ty_info.rust_obj in opaque_structs:
- 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 = None, ret_conv_name = None) # its a pointer, no conv needed
- 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 = None, ret_conv_name = None) # its a pointer, no conv needed
- elif ty_info.is_ptr:
- 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)
- elif ty_info.java_ty == "String":
- 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")
- else:
- 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)
- elif not print_void:
- # We don't have a parameter name, and want one, just call it arg
- 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)
- else:
- assert(not is_free)
- 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)
- else:
- # We don't have a parameter name, and don't want one (cause we're returning)
- if ty_info.rust_obj is not None:
- if not ty_info.is_ptr:
- if ty_info.rust_obj in unitary_enums:
- return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
- arg_conv = ty_info.rust_obj + " ret = " + ty_info.rust_obj + "_from_java(_env, " + ty_info.var_name + ");",
- arg_conv_name = "ret", arg_conv_cleanup = None,
- ret_conv = ("jclass ret = " + ty_info.rust_obj + "_to_java(_env, ", ");"), ret_conv_name = "ret")
- if ty_info.rust_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 ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
- ret_conv = (ty_info.rust_obj + " ret = ", ";"),
- ret_conv_name = "((long)ret.inner) | (ret.is_owned ? 1 : 0)",
- arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None)
- else:
- return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
- ret_conv = (ty_info.rust_obj + "* ret = MALLOC(sizeof(" + ty_info.rust_obj + "), \"" + ty_info.rust_obj + "\");\n*ret = ", ";"),
- ret_conv_name = "(long)ret",
- arg_conv = None, arg_conv_name = None, arg_conv_cleanup = None)
- else:
- return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name,
- ret_conv = ("long ret = (long)", ";"), ret_conv_name = "ret",
- arg_conv = None, arg_conv_name = None, arg_conv_cleanup = 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 = None, ret_conv_name = None)
+# 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")
- 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 ")
+java_c_types_none_allowed = False # C structs created by cbindgen are declared in dependency order
- is_free = re_match.group(2).endswith("_free")
- struct_meth = re_match.group(2).split("_")[0]
+with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
+ util.write(consts.util_fn_pfx)
- ret_info = map_type(re_match.group(1), True, ret_arr_len, False)
- ret_info.print_ty()
+with open(sys.argv[1]) as in_h, open(sys.argv[2], "w") as out_java:
+ # Map a top-level function
+ def map_fn(line, re_match, ret_arr_len, c_call_string, doc_comment):
+ method_return_type = re_match.group(1)
+ method_name = re_match.group(2)
+ method_comma_separated_arguments = re_match.group(3)
+ method_arguments = method_comma_separated_arguments.split(',')
- if ret_info.ret_conv is not None:
- ret_conv_pfx, ret_conv_sfx = ret_info.ret_conv
+ is_free = method_name.endswith("_free")
+ if method_name.startswith("COption") or method_name.startswith("CResult"):
+ struct_meth = method_name.rsplit("Z", 1)[0][1:] + "Z"
+ else:
+ struct_meth = method_name.split("_")[0]
- 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")
+ return_type_info = type_mapping_generator.map_type(method_return_type, True, ret_arr_len, False, False)
- arg_names = []
+ argument_types = []
+ default_constructor_args = {}
takes_self = False
- args_known = not ret_info.passed_as_ptr or ret_info.rust_obj in opaque_structs or ret_info.rust_obj in trait_structs
- for idx, arg in enumerate(re_match.group(3).split(',')):
- if idx != 0:
- out_java.write(", ")
- if arg != "void":
- out_c.write(", ")
- arg_conv_info = map_type(arg, False, None, is_free)
- if arg_conv_info.c_ty != "void":
- arg_conv_info.print_ty()
- arg_conv_info.print_name()
- if arg_conv_info.arg_name == "this_arg":
- takes_self = True
- if arg_conv_info.passed_as_ptr and not arg_conv_info.rust_obj in opaque_structs:
- if not arg_conv_info.rust_obj in trait_structs and not arg_conv_info.rust_obj in unitary_enums:
- print(re_match.group(2) + " bad - " + arg_conv_info.rust_obj)
- args_known = False
- arg_names.append(arg_conv_info)
+ args_known = True
- 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(sys.argv[3] + "/structs/" + struct_meth + ".java", "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:
- out_java_struct.write("\tpublic ")
- meth_n = re_match.group(2)[len(struct_meth) + 1:]
- if ret_info.rust_obj == "LDK" + struct_meth:
- out_java_struct.write(struct_meth + "(")
- elif ret_info.rust_obj in opaque_structs or ret_info.rust_obj in trait_structs:
- out_java_struct.write(ret_info.rust_obj.replace("LDK", "") + " " + meth_n + "(")
- else:
- out_java_struct.write(ret_info.java_ty + " " + meth_n + "(")
- for idx, arg in enumerate(arg_names):
- if idx != 0:
- if not takes_self or idx > 1:
- out_java_struct.write(", ")
- if arg.java_ty != "void" and arg.arg_name != "this_arg":
- if arg.passed_as_ptr:
- if arg.rust_obj in opaque_structs or arg.rust_obj in trait_structs:
- out_java_struct.write(arg.rust_obj.replace("LDK", "") + " " + arg.arg_name)
- else:
- out_java_struct.write(arg.rust_obj + " " + arg.arg_name)
- else:
- out_java_struct.write(arg.java_ty + " " + arg.arg_name)
-
-
- out_java.write(");\n")
- out_c.write(") {\n")
- if out_java_struct is not None:
- out_java_struct.write(") {\n")
-
- for info in arg_names:
- if info.arg_conv is not None:
- out_c.write("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
+ for argument_index, argument in enumerate(method_arguments):
+ argument_conversion_info = type_mapping_generator.map_type(argument, False, None, is_free, True)
+ if argument_index == 0 and argument_conversion_info.java_hu_ty == struct_meth:
+ takes_self = True
+ if argument_conversion_info.arg_conv is not None and "Warning" in argument_conversion_info.arg_conv:
+ if argument_conversion_info.rust_obj in constructor_fns:
+ assert not is_free
+ for explode_arg in constructor_fns[argument_conversion_info.rust_obj].split(','):
+ explode_arg_conv = type_mapping_generator.map_type(explode_arg, False, None, False, True)
+ if explode_arg_conv.c_ty == "void":
+ # We actually want to handle this case, but for now its only used in NetGraphMsgHandler::new()
+ # which ends up resulting in a redundant constructor - both without arguments for the NetworkGraph.
+ args_known = False
+ pass
+ if not argument_conversion_info.arg_name in default_constructor_args:
+ default_constructor_args[argument_conversion_info.arg_name] = []
+ default_constructor_args[argument_conversion_info.arg_name].append(explode_arg_conv)
+ argument_types.append(argument_conversion_info)
- if ret_info.ret_conv is not None:
- out_c.write("\t" + ret_conv_pfx.replace('\n', '\n\t'))
- elif ret_info.c_ty != "void":
- out_c.write("\t" + ret_info.c_ty + " ret_val = ")
+ out_java.write("\t// " + line)
+ (out_java_delta, out_c_delta, out_java_struct_delta) = \
+ consts.map_function(argument_types, c_call_string, method_name, return_type_info, struct_meth, default_constructor_args, takes_self, args_known, type_mapping_generator, doc_comment)
+ out_java.write(out_java_delta)
+
+ if is_free:
+ assert len(argument_types) == 1
+ assert return_type_info.c_ty == "void"
+ write_c(consts.c_fn_ty_pfx + "void " + consts.c_fn_name_define_pfx(method_name, True) + argument_types[0].c_ty + " " + argument_types[0].ty_info.var_name + ") {\n")
+ if argument_types[0].ty_info.passed_as_ptr and not argument_types[0].ty_info.rust_obj in opaque_structs:
+ write_c("\tif ((" + argument_types[0].ty_info.var_name + " & 1) != 0) return;\n")
+
+ for info in argument_types:
+ if info.arg_conv is not None:
+ write_c("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
+ assert c_call_string is None
+ write_c("\t" + method_name + "(")
+ if argument_types[0].arg_conv_name is not None:
+ write_c(argument_types[0].arg_conv_name)
+ write_c(");")
+ for info in argument_types:
+ if info.arg_conv_cleanup is not None:
+ write_c("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
+ write_c("\n}\n\n")
else:
- out_c.write("\t")
+ write_c(out_c_delta)
- if c_call_string is None:
- out_c.write(re_match.group(2) + "(")
- else:
- out_c.write(c_call_string)
- for idx, info in enumerate(arg_names):
- if info.arg_conv_name is not None:
- if idx != 0:
- out_c.write(", ")
- elif c_call_string is not None:
- continue
- out_c.write(info.arg_conv_name)
- out_c.write(")")
- if ret_info.ret_conv is not None:
- out_c.write(ret_conv_sfx.replace('\n', '\n\t'))
- else:
- out_c.write(";")
- for info in arg_names:
- if info.arg_conv_cleanup is not None:
- out_c.write("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
- if ret_info.ret_conv is not None:
- out_c.write("\n\treturn " + ret_info.ret_conv_name + ";")
- elif ret_info.c_ty != "void":
- out_c.write("\n\treturn ret_val;")
- out_c.write("\n}\n\n")
+ out_java_struct = None
+ expected_struct = "LDK" + struct_meth
+ expected_cstruct = "LDKC" + struct_meth
+ if (expected_struct in opaque_structs or expected_struct in trait_structs
+ or expected_struct in complex_enums or expected_cstruct in complex_enums
+ or expected_cstruct in result_types) and not is_free:
+ out_java_struct = open(f"{sys.argv[3]}/structs/{struct_meth}{consts.file_ext}", "a")
+ elif method_name.startswith("C2Tuple_") and method_name.endswith("_read"):
+ struct_meth = method_name.rsplit("_", 1)[0]
+ out_java_struct = open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a")
if out_java_struct is not None:
- out_java_struct.write("\t\t")
- if ret_info.rust_obj == "LDK" + struct_meth:
- out_java_struct.write("super(")
- elif ret_info.java_ty != "void" and not ret_info.passed_as_ptr:
- out_java_struct.write(ret_info.java_ty + " ret = ")
- elif ret_info.java_ty != "void":
- out_java_struct.write(ret_info.rust_obj.replace("LDK", "") + " ret = ")
- if ret_info.rust_obj in opaque_structs or ret_info.rust_obj in trait_structs:
- out_java_struct.write("new " + ret_info.rust_obj.replace("LDK", "") + "(null, ")
- out_java_struct.write("bindings." + re_match.group(2) + "(")
- for idx, info in enumerate(arg_names):
- if idx != 0:
- out_java_struct.write(", ")
- if info.arg_name == "this_arg":
- out_java_struct.write("this.ptr")
- elif info.passed_as_ptr and info.rust_obj in opaque_structs:
- out_java_struct.write(info.arg_name + ".ptr & ~1")
- elif info.passed_as_ptr and info.rust_obj in trait_structs:
- out_java_struct.write(info.arg_name + ".ptr")
- else:
- out_java_struct.write(info.arg_name)
- out_java_struct.write(")")
- if ret_info.rust_obj == "LDK" + struct_meth:
- out_java_struct.write(");\n")
- elif ret_info.rust_obj in opaque_structs:
- out_java_struct.write(");\n")
- elif ret_info.rust_obj in trait_structs:
- out_java_struct.write(");\n\t\tret.ptrs_to.add(this);\n")
- else:
- out_java_struct.write(";\n")
-
- for info in arg_names:
- if info.arg_name == "this_arg":
- pass
- elif info.passed_as_ptr and (info.rust_obj in opaque_structs or info.rust_obj in trait_structs):
- out_java_struct.write("\t\tthis.ptrs_to.add(" + info.arg_name + ");\n")
+ out_java_struct.write(out_java_struct_delta)
- if ret_info.java_ty != "void" and ret_info.rust_obj != "LDK" + struct_meth:
- out_java_struct.write("\t\treturn ret;\n")
- out_java_struct.write("\t}\n\n")
- out_java_struct.close()
-
- def map_unitary_enum(struct_name, field_lines):
- with open(sys.argv[3] + "/enums/" + struct_name + ".java", "w") as out_java_enum:
- out_java_enum.write("package org.ldk.enums;\n\n")
+ def map_unitary_enum(struct_name, field_lines, enum_doc_comment):
+ with open(f"{sys.argv[3]}/enums/{struct_name}{consts.file_ext}", "w") as out_java_enum:
unitary_enums.add(struct_name)
- out_c.write("static inline " + struct_name + " " + struct_name + "_from_java(JNIEnv *env, jclass val) {\n")
- out_c.write("\tswitch ((*env)->CallIntMethod(env, val, ordinal_meth)) {\n")
- ord_v = 0
for idx, struct_line in enumerate(field_lines):
if idx == 0:
- out_java_enum.write("public enum " + struct_name + " {\n")
+ 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:
- out_java_enum.write("\t; static native void init();\n")
- out_java_enum.write("\tstatic { init(); }\n")
- out_java_enum.write("}")
- out_java.write("\tstatic { " + struct_name + ".values(); /* Force enum statics to run */ }\n")
+ assert(struct_line == "} %s;" % struct_name)
elif idx == len(field_lines) - 1:
assert(struct_line == "")
- else:
- out_java_enum.write(struct_line + "\n")
- out_c.write("\t\tcase %d: return %s;\n" % (ord_v, struct_line.strip().strip(",")))
- ord_v = ord_v + 1
- out_c.write("\t}\n")
- out_c.write("\tabort();\n")
- out_c.write("}\n")
-
- ord_v = 0
- out_c.write("static jclass " + struct_name + "_class = NULL;\n")
- for idx, struct_line in enumerate(field_lines):
- if idx > 0 and idx < len(field_lines) - 3:
- variant = struct_line.strip().strip(",")
- out_c.write("static jfieldID " + struct_name + "_" + variant + " = NULL;\n")
- out_c.write("JNIEXPORT void JNICALL Java_org_ldk_enums_" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass clz) {\n")
- out_c.write("\t" + struct_name + "_class = (*env)->NewGlobalRef(env, clz);\n")
- out_c.write("\tCHECK(" + struct_name + "_class != NULL);\n")
- for idx, struct_line in enumerate(field_lines):
- if idx > 0 and idx < len(field_lines) - 3:
- variant = struct_line.strip().strip(",")
- out_c.write("\t" + struct_name + "_" + variant + " = (*env)->GetStaticFieldID(env, " + struct_name + "_class, \"" + variant + "\", \"Lorg/ldk/enums/" + struct_name + ";\");\n")
- out_c.write("\tCHECK(" + struct_name + "_" + variant + " != NULL);\n")
- out_c.write("}\n")
- out_c.write("static inline jclass " + struct_name + "_to_java(JNIEnv *env, " + struct_name + " val) {\n")
- out_c.write("\tswitch (val) {\n")
- for idx, struct_line in enumerate(field_lines):
- if idx > 0 and idx < len(field_lines) - 3:
- variant = struct_line.strip().strip(",")
- out_c.write("\t\tcase " + variant + ":\n")
- out_c.write("\t\t\treturn (*env)->GetStaticObjectField(env, " + struct_name + "_class, " + struct_name + "_" + variant + ");\n")
- ord_v = ord_v + 1
- out_c.write("\t\tdefault: abort();\n")
- out_c.write("\t}\n")
- out_c.write("}\n\n")
-
- def map_complex_enum(struct_name, union_enum_items):
+ (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]], enum_doc_comment)
+ write_c(c_out)
+ out_java_enum.write(native_file_out)
+ out_java.write(native_out)
+
+ def map_complex_enum(struct_name, union_enum_items, inline_enum_variants, enum_doc_comment):
+ java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
+ complex_enums.add(struct_name)
+
+ enum_variants = []
tag_field_lines = union_enum_items["field_lines"]
- init_meth_jty_strs = {}
for idx, struct_line in enumerate(tag_field_lines):
if idx == 0:
- out_java.write("\tpublic static class " + struct_name + " {\n")
- out_java.write("\t\tprivate " + struct_name + "() {}\n")
+ 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:
- out_java.write("\t\tstatic native void init();\n")
- out_java.write("\t}\n")
+ assert(struct_line == "} %s_Tag;" % struct_name)
elif idx == len(tag_field_lines) - 1:
assert(struct_line == "")
else:
- var_name = struct_line.strip(' ,')[len(struct_name) + 1:]
- out_java.write("\t\tpublic final static class " + var_name + " extends " + struct_name + " {\n")
- out_c.write("static jclass " + struct_name + "_" + var_name + "_class = NULL;\n")
- out_c.write("static jmethodID " + struct_name + "_" + var_name + "_meth = NULL;\n")
- init_meth_jty_str = ""
- init_meth_params = ""
- init_meth_body = ""
- if "LDK" + var_name in union_enum_items:
- enum_var_lines = union_enum_items["LDK" + var_name]
+ variant_name = struct_line.strip(' ,')[len(struct_name) + 1:]
+ fields = []
+ if "LDK" + variant_name in union_enum_items:
+ enum_var_lines = union_enum_items["LDK" + variant_name]
for idx, field in enumerate(enum_var_lines):
if idx != 0 and idx < len(enum_var_lines) - 2:
- field_ty = java_c_types(field.strip(' ;'), None)
- out_java.write("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.var_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.var_name
- init_meth_body = init_meth_body + "this." + field_ty.var_name + " = " + field_ty.var_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")
- init_meth_jty_strs[var_name] = init_meth_jty_str
- out_java.write("\tstatic { " + struct_name + ".init(); }\n")
- out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n");
-
- out_c.write("JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024" + struct_name.replace("_", "_1") + "_init (JNIEnv * env, jclass _a) {\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_c.write("\t" + struct_name + "_" + var_name + "_class =\n")
- out_c.write("\t\t(*env)->NewGlobalRef(env, (*env)->FindClass(env, \"Lorg/ldk/impl/bindings$" + struct_name + "$" + var_name + ";\"));\n")
- out_c.write("\tCHECK(" + struct_name + "_" + var_name + "_class != NULL);\n")
- out_c.write("\t" + struct_name + "_" + var_name + "_meth = (*env)->GetMethodID(env, " + struct_name + "_" + var_name + "_class, \"<init>\", \"(" + init_meth_jty_strs[var_name] + ")V\");\n")
- out_c.write("\tCHECK(" + struct_name + "_" + var_name + "_meth != NULL);\n")
- out_c.write("}\n")
- out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (JNIEnv * env, jclass _c, jlong ptr) {\n")
- out_c.write("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n")
- out_c.write("\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:]
- out_c.write("\t\tcase " + struct_name + "_" + var_name + ": {\n")
- c_params_text = ""
- 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)
- if field_map.ret_conv is not None:
- out_c.write("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t").replace("_env", "env"))
- out_c.write("obj->" + camel_to_snake(var_name) + "." + field_map.arg_name)
- out_c.write(field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
- c_params_text = c_params_text + ", " + field_map.ret_conv_name
- else:
- c_params_text = c_params_text + ", obj->" + camel_to_snake(var_name) + "." + field_map.arg_name
- out_c.write("\t\t\treturn (*env)->NewObject(env, " + struct_name + "_" + var_name + "_class, " + struct_name + "_" + var_name + "_meth" + c_params_text + ");\n")
- out_c.write("\t\t}\n")
- out_c.write("\t\tdefault: abort();\n")
- out_c.write("\t}\n}\n")
-
- def map_trait(struct_name, field_var_lines, trait_fn_lines):
- with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "w") as out_java_trait:
- out_c.write("typedef struct " + struct_name + "_JCalls {\n")
- out_c.write("\tatomic_size_t refcnt;\n")
- out_c.write("\tJavaVM *vm;\n")
- out_c.write("\tjweak o;\n")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_c.write("\t" + var_line.group(1) + "_JCalls* " + var_line.group(2) + ";\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_trait.write("package org.ldk.structs;\n\n")
- out_java_trait.write("import org.ldk.impl.bindings;\n\n")
- out_java_trait.write("import org.ldk.enums.*;\n\n")
- out_java_trait.write("public class " + struct_name.replace("LDK","") + " extends CommonBase {\n")
- out_java_trait.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\n")
- out_java_trait.write("\tpublic " + struct_name.replace("LDK", "") + "(bindings." + struct_name + " arg")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_java_trait.write(", bindings." + var_line.group(1) + " " + var_line.group(2))
- out_java_trait.write(") {\n")
- out_java_trait.write("\t\tsuper(bindings." + struct_name + "_new(arg")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_java_trait.write(", " + var_line.group(2))
- out_java_trait.write("));\n")
- out_java_trait.write("\t\tthis.ptrs_to.add(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\tbindings." + struct_name.replace("LDK","") + "_free(ptr); super.finalize();\n")
- out_java_trait.write("\t}\n\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(2) != "free" and fn_line.group(2) != "clone":
- ret_ty_info = java_c_types(fn_line.group(1), None)
-
- out_java.write("\t\t " + ret_ty_info.java_ty + " " + fn_line.group(2) + "(")
- is_const = fn_line.group(3) is not None
- out_c.write(fn_line.group(1) + fn_line.group(2) + "_jcall(")
- if is_const:
- out_c.write("const void* this_arg")
- else:
- out_c.write("void* this_arg")
-
- arg_names = []
- for idx, arg in enumerate(fn_line.group(4).split(',')):
- if arg == "":
- continue
- if idx >= 2:
- out_java.write(", ")
- out_c.write(", ")
- arg_conv_info = map_type(arg, True, None, False)
- out_c.write(arg.strip())
- out_java.write(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(java_meth_descr)
-
- out_java.write(");\n")
- out_c.write(") {\n")
- out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\tJNIEnv *env;\n")
- out_c.write("\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n")
-
- for arg_info in arg_names:
- if arg_info.ret_conv is not None:
- out_c.write("\t" + arg_info.ret_conv[0].replace('\n', '\n\t').replace("_env", "env"));
- out_c.write(arg_info.arg_name)
- out_c.write(arg_info.ret_conv[1].replace('\n', '\n\t').replace("_env", "env") + "\n")
-
- out_c.write("\tjobject obj = (*env)->NewLocalRef(env, j_calls->o);\n\tCHECK(obj != NULL);\n")
- if ret_ty_info.c_ty.endswith("Array"):
- assert(ret_ty_info.c_ty == "jbyteArray")
- out_c.write("\tjbyteArray jret = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.group(2) + "_meth")
- elif not ret_ty_info.passed_as_ptr:
- out_c.write("\treturn (*env)->Call" + ret_ty_info.java_ty.title() + "Method(env, obj, j_calls->" + fn_line.group(2) + "_meth")
- else:
- out_c.write("\t" + fn_line.group(1).strip() + "* ret = (" + fn_line.group(1).strip() + "*)(*env)->CallLongMethod(env, obj, j_calls->" + fn_line.group(2) + "_meth");
+ fields.append(type_mapping_generator.map_type(field.strip(' ;'), False, None, False, True))
+ enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, False))
+ elif camel_to_snake(variant_name) in inline_enum_variants:
+ fields.append(type_mapping_generator.map_type(inline_enum_variants[camel_to_snake(variant_name)] + " " + camel_to_snake(variant_name), False, None, False, True))
+ enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, True))
+ else:
+ enum_variants.append(ComplexEnumVariantInfo(variant_name, fields, True))
- for arg_info in arg_names:
- if arg_info.ret_conv is not None:
- out_c.write(", " + arg_info.ret_conv_name)
- else:
- out_c.write(", " + arg_info.arg_name)
- out_c.write(");\n");
- if ret_ty_info.c_ty.endswith("Array"):
- out_c.write("\t" + ret_ty_info.rust_obj + " ret;\n")
- out_c.write("\tCHECK((*env)->GetArrayLength(env, jret) == " + ret_ty_info.arr_len + ");\n")
- out_c.write("\t(*env)->GetByteArrayRegion(env, jret, 0, " + ret_ty_info.arr_len + ", ret." + ret_ty_info.arr_access + ");\n")
- out_c.write("\treturn ret;\n")
-
- if ret_ty_info.passed_as_ptr:
- out_c.write("\t" + fn_line.group(1).strip() + " res = *ret;\n")
- out_c.write("\tFREE(ret);\n")
- out_c.write("\treturn res;\n")
- out_c.write("}\n")
- elif fn_line.group(2) == "free":
- out_c.write("static void " + struct_name + "_JCalls_free(void* this_arg) {\n")
- out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n")
- out_c.write("\t\tJNIEnv *env;\n")
- out_c.write("\t\tDO_ASSERT((*j_calls->vm)->GetEnv(j_calls->vm, (void**)&env, JNI_VERSION_1_8) == JNI_OK);\n")
- out_c.write("\t\t(*env)->DeleteWeakGlobalRef(env, j_calls->o);\n")
- out_c.write("\t\tFREE(j_calls);\n")
- out_c.write("\t}\n}\n")
-
- # Write out a clone function whether we need one or not, as we use them in moving to rust
- out_c.write("static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n")
- out_c.write("\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n")
- out_c.write("\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:
- out_c.write("\tatomic_fetch_add_explicit(&j_calls->" + var_line.group(2) + "->refcnt, 1, memory_order_release);\n")
- out_c.write("\treturn (void*) this_arg;\n")
- out_c.write("}\n")
+ with open(f"{sys.argv[3]}/structs/{java_hu_type}{consts.file_ext}", "w") as out_java_enum:
+ (out_java_addendum, out_java_enum_addendum, out_c_addendum) = consts.map_complex_enum(struct_name, enum_variants, camel_to_snake, enum_doc_comment)
- out_java.write("\t}\n")
+ out_java_enum.write(out_java_enum_addendum)
+ out_java.write(out_java_addendum)
+ write_c(out_c_addendum)
- out_java.write("\tpublic static native long " + struct_name + "_new(" + struct_name + " impl")
- out_c.write("static inline " + struct_name + " " + struct_name + "_init (JNIEnv * env, jclass _a, jobject o")
+ def map_trait(struct_name, field_var_lines, trait_fn_lines, trait_doc_comment):
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_trait:
+ field_var_convs = []
+ flattened_field_var_convs = []
for var_line in field_var_lines:
if var_line.group(1) in trait_structs:
- out_java.write(", " + var_line.group(1) + " " + var_line.group(2))
- out_c.write(", jobject " + var_line.group(2))
- out_java.write(");\n")
- out_c.write(") {\n")
-
- out_c.write("\tjclass c = (*env)->GetObjectClass(env, o);\n")
- out_c.write("\tCHECK(c != NULL);\n")
- out_c.write("\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n")
- out_c.write("\tatomic_init(&calls->refcnt, 1);\n")
- out_c.write("\tDO_ASSERT((*env)->GetJavaVM(env, &calls->vm) == 0);\n")
- out_c.write("\tcalls->o = (*env)->NewWeakGlobalRef(env, o);\n")
- for (fn_line, java_meth_descr) in zip(trait_fn_lines, java_meths):
- 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) + "\", \"" + java_meth_descr + "\");\n")
- out_c.write("\tCHECK(calls->" + fn_line.group(2) + "_meth != NULL);\n")
- out_c.write("\n\t" + struct_name + " ret = {\n")
- out_c.write("\t\t.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("\t\t." + fn_line.group(2) + " = " + fn_line.group(2) + "_jcall,\n")
- elif fn_line.group(2) == "free":
- out_c.write("\t\t.free = " + struct_name + "_JCalls_free,\n")
+ field_var_convs.append((var_line.group(1), var_line.group(2), trait_structs[var_line.group(1)]))
+ flattened_field_var_convs.append((var_line.group(1), var_line.group(2), ))
+ flattened_field_var_convs.extend(trait_structs[var_line.group(1)])
else:
- out_c.write("\t\t.clone = " + struct_name + "_JCalls_clone,\n")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_c.write("\t\t." + var_line.group(2) + " = " + var_line.group(1) + "_init(env, _a, " + var_line.group(2) + "),\n")
- out_c.write("\t};\n")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_c.write("\tcalls->" + var_line.group(2) + " = ret." + var_line.group(2) + ".this_arg;\n")
- out_c.write("\treturn ret;\n")
- out_c.write("}\n")
-
- out_c.write("JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new (JNIEnv * env, jclass _a, jobject o")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_c.write(", jobject " + var_line.group(2))
- out_c.write(") {\n")
- out_c.write("\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
- out_c.write("\t*res_ptr = " + struct_name + "_init(env, _a, o")
- for var_line in field_var_lines:
- if var_line.group(1) in trait_structs:
- out_c.write(", " + var_line.group(2))
- out_c.write(");\n")
- out_c.write("\treturn (long)res_ptr;\n")
- out_c.write("}\n")
-
- out_java.write("\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n")
- out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1get_1obj_1from_1jcalls (JNIEnv * env, jclass _a, jlong val) {\n")
- out_c.write("\tjobject ret = (*env)->NewLocalRef(env, ((" + struct_name + "_JCalls*)val)->o);\n")
- out_c.write("\tCHECK(ret != NULL);\n")
- out_c.write("\treturn ret;\n")
- out_c.write("}\n")
-
- for fn_line in trait_fn_lines:
+ mapped = type_mapping_generator.map_type(var_line.group(1) + " " + var_line.group(2), False, None, False, False)
+ field_var_convs.append(mapped)
+ flattened_field_var_convs.append(mapped)
+ trait_structs[struct_name] = field_var_convs
+
+ field_fns = []
+ for fn_docs, fn_line in trait_fn_lines:
+ ret_ty_info = type_mapping_generator.map_type(fn_line.group(2), True, None, False, False)
+ is_const = fn_line.group(4) is not None
+
+ arg_tys = []
+ for idx, arg in enumerate(fn_line.group(5).split(',')):
+ if arg == "":
+ continue
+ arg_conv_info = type_mapping_generator.map_type(arg, True, None, False, False)
+ arg_tys.append(arg_conv_info)
+ field_fns.append(TraitMethInfo(fn_line.group(3), is_const, ret_ty_info, arg_tys, fn_docs))
+
+ (out_java_addendum, out_java_trait_addendum, out_c_addendum) = consts.native_c_map_trait(struct_name, field_var_convs, flattened_field_var_convs, field_fns, trait_doc_comment)
+ write_c(out_c_addendum)
+ out_java_trait.write(out_java_trait_addendum)
+ out_java.write(out_java_addendum)
+
+ for fn_docs, fn_line in trait_fn_lines:
# For now, just disable enabling the _call_log - we don't know how to inverse-map String
- is_log = fn_line.group(2) == "log" and struct_name == "LDKLogger"
- if fn_line.group(2) != "free" and fn_line.group(2) != "clone" and fn_line.group(2) != "eq" and not is_log:
- dummy_line = fn_line.group(1) + struct_name.replace("LDK", "") + "_call_" + fn_line.group(2) + " " + struct_name + "* this_arg" + fn_line.group(4) + "\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(2) + ")(this_arg_conv->this_arg")
-
- out_c.write("""#include \"org_ldk_impl_bindings.h\"
-#include <rust_types.h>
-#include <lightning.h>
-#include <string.h>
-#include <stdatomic.h>
-""")
-
- if sys.argv[4] == "false":
- out_c.write("#define MALLOC(a, _) malloc(a)\n")
- out_c.write("#define FREE free\n")
- out_c.write("#define DO_ASSERT(a) (void)(a)\n")
- out_c.write("#define CHECK(a)\n")
- else:
- out_c.write("""#include <assert.h>
-// Always run a, then assert it is true:
-#define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
-// Assert a is true or do nothing
-#define CHECK(a) DO_ASSERT(a)
-
-// Running a leak check across all the allocations and frees of the JDK is a mess,
-// so instead we implement our own naive leak checker here, relying on the -wrap
-// linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
-// and free'd in Rust or C across the generated bindings shared library.
-#include <threads.h>
-#include <execinfo.h>
-#include <unistd.h>
-static mtx_t allocation_mtx;
-
-void __attribute__((constructor)) init_mtx() {
- DO_ASSERT(mtx_init(&allocation_mtx, mtx_plain) == thrd_success);
-}
-
-#define BT_MAX 128
-typedef struct allocation {
- struct allocation* next;
- void* ptr;
- const char* struct_name;
- void* bt[BT_MAX];
- int bt_len;
-} allocation;
-static allocation* allocation_ll = NULL;
-
-void* __real_malloc(size_t len);
-void* __real_calloc(size_t nmemb, size_t len);
-static void new_allocation(void* res, const char* struct_name) {
- allocation* new_alloc = __real_malloc(sizeof(allocation));
- new_alloc->ptr = res;
- new_alloc->struct_name = struct_name;
- new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX);
- DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
- new_alloc->next = allocation_ll;
- allocation_ll = new_alloc;
- DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
-}
-static void* MALLOC(size_t len, const char* struct_name) {
- void* res = __real_malloc(len);
- new_allocation(res, struct_name);
- return res;
-}
-void __real_free(void* ptr);
-static void alloc_freed(void* ptr) {
- allocation* p = NULL;
- DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
- allocation* it = allocation_ll;
- while (it->ptr != ptr) { p = it; it = it->next; }
- if (p) { p->next = it->next; } else { allocation_ll = it->next; }
- DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
- DO_ASSERT(it->ptr == ptr);
- __real_free(it);
-}
-static void FREE(void* ptr) {
- alloc_freed(ptr);
- __real_free(ptr);
-}
-
-void* __wrap_malloc(size_t len) {
- void* res = __real_malloc(len);
- new_allocation(res, "malloc call");
- return res;
-}
-void* __wrap_calloc(size_t nmemb, size_t len) {
- void* res = __real_calloc(nmemb, len);
- new_allocation(res, "calloc call");
- return res;
-}
-void __wrap_free(void* ptr) {
- alloc_freed(ptr);
- __real_free(ptr);
-}
-
-void* __real_realloc(void* ptr, size_t newlen);
-void* __wrap_realloc(void* ptr, size_t len) {
- alloc_freed(ptr);
- void* res = __real_realloc(ptr, len);
- new_allocation(res, "realloc call");
- return res;
-}
-void __wrap_reallocarray(void* ptr, size_t new_sz) {
- // Rust doesn't seem to use reallocarray currently
- assert(false);
-}
-
-void __attribute__((destructor)) check_leaks() {
- for (allocation* a = allocation_ll; a != NULL; a = a->next) {
- fprintf(stderr, "%s %p remains:\\n", a->struct_name, a->ptr);
- backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO);
- fprintf(stderr, "\\n\\n");
- }
- DO_ASSERT(allocation_ll == NULL);
-}
-""")
- 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);
- }
- static native void init(java.lang.Class c, java.lang.Class slicedef);
-
- 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 long vec_slice_len(long vec);
- public static native long new_empty_slice_vec();
-
-""")
- out_c.write("""
-static jmethodID ordinal_meth = NULL;
-static jmethodID slicedef_meth = NULL;
-static jclass slicedef_cls = NULL;
-JNIEXPORT void Java_org_ldk_impl_bindings_init(JNIEnv * env, jclass _b, jclass enum_class, jclass slicedef_class) {
- ordinal_meth = (*env)->GetMethodID(env, enum_class, "ordinal", "()I");
- CHECK(ordinal_meth != NULL);
- slicedef_meth = (*env)->GetMethodID(env, slicedef_class, "<init>", "(JJJ)V");
- CHECK(slicedef_meth != NULL);
- slicedef_cls = (*env)->NewGlobalRef(env, slicedef_class);
- CHECK(slicedef_cls != NULL);
-}
-
-JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_deref_1bool (JNIEnv * env, jclass _a, jlong ptr) {
- return *((bool*)ptr);
-}
-JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_deref_1long (JNIEnv * env, jclass _a, jlong ptr) {
- return *((long*)ptr);
-}
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_free_1heap_1ptr (JNIEnv * env, jclass _a, jlong ptr) {
- FREE((void*)ptr);
-}
-JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_read_1bytes (JNIEnv * _env, jclass _b, jlong ptr, jlong len) {
- jbyteArray ret_arr = (*_env)->NewByteArray(_env, len);
- (*_env)->SetByteArrayRegion(_env, ret_arr, 0, len, (unsigned char*)ptr);
- return ret_arr;
-}
-JNIEXPORT jbyteArray JNICALL Java_org_ldk_impl_bindings_get_1u8_1slice_1bytes (JNIEnv * _env, jclass _b, jlong slice_ptr) {
- LDKu8slice *slice = (LDKu8slice*)slice_ptr;
- jbyteArray ret_arr = (*_env)->NewByteArray(_env, slice->datalen);
- (*_env)->SetByteArrayRegion(_env, ret_arr, 0, slice->datalen, slice->data);
- return ret_arr;
-}
-JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_bytes_1to_1u8_1vec (JNIEnv * _env, jclass _b, jbyteArray bytes) {
- LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "LDKCVec_u8");
- vec->datalen = (*_env)->GetArrayLength(_env, bytes);
- vec->data = (uint8_t*)MALLOC(vec->datalen, "LDKCVec_u8Z Bytes");
- (*_env)->GetByteArrayRegion (_env, bytes, 0, vec->datalen, vec->data);
- return (long)vec;
-}
-JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1txpointer_1copy_1data (JNIEnv * env, jclass _b, jbyteArray bytes) {
- LDKTransaction *txdata = (LDKTransaction*)MALLOC(sizeof(LDKTransaction), "LDKTransaction");
- txdata->datalen = (*env)->GetArrayLength(env, bytes);
- txdata->data = (uint8_t*)MALLOC(txdata->datalen, "Tx Data Bytes");
- txdata->data_is_owned = true;
- (*env)->GetByteArrayRegion (env, bytes, 0, txdata->datalen, txdata->data);
- return (long)txdata;
-}
-JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_vec_1slice_1len (JNIEnv * env, jclass _a, jlong ptr) {
- // Check offsets of a few Vec types are all consistent as we're meant to be generic across types
- _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_SignatureZ, datalen), "Vec<*> needs to be mapped identically");
- _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_MessageSendEventZ, datalen), "Vec<*> needs to be mapped identically");
- _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_EventZ, datalen), "Vec<*> needs to be mapped identically");
- _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKCVec_C2Tuple_usizeTransactionZZ, datalen), "Vec<*> needs to be mapped identically");
- LDKCVec_u8Z *vec = (LDKCVec_u8Z*)ptr;
- return (long)vec->datalen;
-}
-JNIEXPORT long JNICALL Java_org_ldk_impl_bindings_new_1empty_1slice_1vec (JNIEnv * _env, jclass _b) {
- // Check sizes of a few Vec types are all consistent as we're meant to be generic across types
- _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_SignatureZ), "Vec<*> needs to be mapped identically");
- _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_MessageSendEventZ), "Vec<*> needs to be mapped identically");
- _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_EventZ), "Vec<*> needs to be mapped identically");
- _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKCVec_C2Tuple_usizeTransactionZZ), "Vec<*> needs to be mapped identically");
- LDKCVec_u8Z *vec = (LDKCVec_u8Z*)MALLOC(sizeof(LDKCVec_u8Z), "Empty LDKCVec");
- vec->data = NULL;
- vec->datalen = 0;
- return (long)vec;
-}
-
-// We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
-_Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
-_Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
-_Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
-
-""")
-
- with open(sys.argv[3] + "/structs/CommonBase.java", "a") as out_java_struct:
- out_java_struct.write("""package org.ldk.structs;
-import java.util.LinkedList;
-class CommonBase {
- final long ptr;
- LinkedList<Object> ptrs_to = new LinkedList();
- protected CommonBase(long ptr) { this.ptr = ptr; }
- public long _test_only_get_ptr() { return this.ptr; }
-}
-""")
-
- in_block_comment = False
+ 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 + " *NONNULL_PTR this_arg" + fn_line.group(5) + "\n"
+ map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, "(this_arg_conv->" + fn_line.group(3) + ")(this_arg_conv->this_arg", fn_docs)
+ for idx, var_line in enumerate(field_var_lines):
+ if var_line.group(1) not in trait_structs:
+ write_c(var_line.group(1) + " " + struct_name + "_set_get_" + var_line.group(2) + "(" + struct_name + "* this_arg) {\n")
+ write_c("\tif (this_arg->set_" + var_line.group(2) + " != NULL)\n")
+ write_c("\t\tthis_arg->set_" + var_line.group(2) + "(this_arg);\n")
+ write_c("\treturn this_arg->" + var_line.group(2) + ";\n")
+ write_c("}\n")
+ dummy_line = var_line.group(1) + " " + struct_name.replace("LDK", "") + "_get_" + var_line.group(2) + " " + struct_name + " *NONNULL_PTR this_arg" + fn_line.group(5) + "\n"
+ map_fn(dummy_line, re.compile("([A-Za-z_0-9]*) *([A-Za-z_0-9]*) *(.*)").match(dummy_line), None, struct_name + "_set_get_" + var_line.group(2) + "(this_arg_conv", fn_docs)
+
+ def map_result(struct_name, res_ty, err_ty):
+ result_types.add(struct_name)
+ human_ty = struct_name.replace("LDKCResult", "Result")
+ with open(f"{sys.argv[3]}/structs/{human_ty}{consts.file_ext}", "w") as out_java_struct:
+ out_java_struct.write(consts.hu_struct_file_prefix)
+ out_java_struct.write("public class " + human_ty + " extends CommonBase {\n")
+ out_java_struct.write("\tprivate " + human_ty + "(Object _dummy, long ptr) { super(ptr); }\n")
+ out_java_struct.write("\tprotected void finalize() throws Throwable {\n")
+ out_java_struct.write("\t\tif (ptr != 0) { bindings." + struct_name.replace("LDK","") + "_free(ptr); } super.finalize();\n")
+ out_java_struct.write("\t}\n\n")
+ out_java_struct.write("\tstatic " + human_ty + " constr_from_ptr(long ptr) {\n")
+ out_java_struct.write("\t\tif (bindings." + struct_name + "_result_ok(ptr)) {\n")
+ out_java_struct.write("\t\t\treturn new " + human_ty + "_OK(null, ptr);\n")
+ out_java_struct.write("\t\t} else {\n")
+ out_java_struct.write("\t\t\treturn new " + human_ty + "_Err(null, ptr);\n")
+ out_java_struct.write("\t\t}\n")
+ out_java_struct.write("\t}\n")
+
+ res_map = type_mapping_generator.map_type(res_ty + " res", True, None, False, True)
+ err_map = type_mapping_generator.map_type(err_ty + " err", True, None, False, True)
+ can_clone = True
+ if not res_map.is_native_primitive and (res_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns):
+ can_clone = False
+ if not err_map.is_native_primitive and (err_map.rust_obj.replace("LDK", "") + "_clone" not in clone_fns):
+ can_clone = False
+
+ out_java.write("\tpublic static native boolean " + struct_name + "_result_ok(long arg);\n")
+ write_c(consts.c_fn_ty_pfx + "jboolean " + consts.c_fn_name_define_pfx(struct_name + "_result_ok", True) + consts.ptr_c_ty + " arg) {\n")
+ write_c("\treturn ((" + struct_name + "*)arg)->result_ok;\n")
+ write_c("}\n")
+
+ out_java.write("\tpublic static native " + res_map.java_ty + " " + struct_name + "_get_ok(long arg);\n")
+ write_c(consts.c_fn_ty_pfx + res_map.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_ok", True) + consts.ptr_c_ty + " arg) {\n")
+ write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\n")
+ write_c("\tCHECK(val->result_ok);\n\t")
+ out_java_struct.write("\tpublic static final class " + human_ty + "_OK extends " + human_ty + " {\n")
+ if res_map.ret_conv is not None:
+ write_c(res_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.result)")
+ write_c(res_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + res_map.ret_conv_name)
+ else:
+ 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")
+ out_java_struct.write("\t}\n\n")
+
+ out_java.write("\tpublic static native " + err_map.java_ty + " " + struct_name + "_get_err(long arg);\n")
+ write_c(consts.c_fn_ty_pfx + err_map.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_err", True) + consts.ptr_c_ty + " arg) {\n")
+ write_c("\t" + struct_name + " *val = (" + struct_name + "*)(arg & ~1);\n")
+ write_c("\tCHECK(!val->result_ok);\n\t")
+ out_java_struct.write("\tpublic static final class " + human_ty + "_Err extends " + human_ty + " {\n")
+ if err_map.ret_conv is not None:
+ write_c(err_map.ret_conv[0].replace("\n", "\n\t") + "(*val->contents.err)")
+ write_c(err_map.ret_conv[1].replace("\n", "\n\t") + "\n\treturn " + err_map.ret_conv_name)
+ else:
+ 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")
+
+ out_java_struct.write("\t}\n\n")
+
+ def map_tuple(struct_name, field_lines):
+ out_java.write("\tpublic static native long " + struct_name + "_new(")
+ write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_new", len(field_lines) > 3))
+ ty_list = []
+ for idx, line in enumerate(field_lines):
+ if idx != 0 and idx < len(field_lines) - 2:
+ ty_info = java_c_types(line.strip(';'), None)
+ if idx != 1:
+ out_java.write(", ")
+ write_c(", ")
+ e = chr(ord('a') + idx - 1)
+ out_java.write(ty_info.java_ty + " " + e)
+ write_c(ty_info.c_ty + " " + e)
+ ty_list.append(ty_info)
+ tuple_types[struct_name] = (ty_list, struct_name)
+ out_java.write(");\n")
+ write_c(") {\n")
+ write_c("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
+ for idx, line in enumerate(field_lines):
+ if idx != 0 and idx < len(field_lines) - 2:
+ ty_info = type_mapping_generator.map_type(line.strip(';'), False, None, False, False)
+ e = chr(ord('a') + idx - 1)
+ if ty_info.arg_conv is not None:
+ write_c("\t" + ty_info.arg_conv.replace("\n", "\n\t"))
+ write_c("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n")
+ else:
+ write_c("\tret->" + e + " = " + e + ";\n")
+ if ty_info.arg_conv_cleanup is not None:
+ write_c("\t//TODO: Really need to call " + ty_info.arg_conv_cleanup + " here\n")
+ write_c("\treturn (long)ret;\n")
+ write_c("}\n")
+
+ for idx, ty_info in enumerate(ty_list):
+ e = chr(ord('a') + idx)
+ out_java.write("\tpublic static native " + ty_info.java_ty + " " + struct_name + "_get_" + e + "(long ptr);\n")
+ write_c(consts.c_fn_ty_pfx + ty_info.c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_get_" + e, True) + consts.ptr_c_ty + " ptr) {\n")
+ write_c("\t" + struct_name + " *tuple = (" + struct_name + "*)(ptr & ~1);\n")
+ conv_info = type_mapping_generator.map_type_with_info(ty_info, False, None, False, True)
+ if conv_info.ret_conv is not None:
+ write_c("\t" + conv_info.ret_conv[0].replace("\n", "\n\t") + "tuple->" + e + conv_info.ret_conv[1].replace("\n", "\n\t") + "\n")
+ write_c("\treturn " + conv_info.ret_conv_name + ";\n")
+ else:
+ write_c("\treturn tuple->" + e + ";\n")
+ write_c("}\n")
+
+ out_java.write(consts.bindings_header)
+
+ with open(f"{sys.argv[3]}/structs/CommonBase{consts.file_ext}", "w") as out_java_struct:
+ out_java_struct.write(consts.common_base)
+
+ block_comment = None
+ last_block_comment = None
cur_block_obj = None
const_val_regex = re.compile("^extern const ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$")
- line_indicates_result_regex = re.compile("^ (LDKCResultPtr_[A-Za-z_0-9]*) contents;$")
- line_indicates_vec_regex = re.compile("^ ([A-Za-z_0-9]*) \*data;$")
+ line_indicates_result_regex = re.compile("^ union (LDKCResult_[A-Za-z_0-9]*Ptr) contents;$")
+ 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("^ ([A-Za-z_0-9]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$")
+ line_indicates_trait_regex = re.compile("^ (struct |enum |union )?([A-Za-z_0-9]* \*?)\(\*([A-Za-z_0-9]*)\)\((const )?void \*this_arg(.*)\);$")
assert(line_indicates_trait_regex.match(" uintptr_t (*send_data)(void *this_arg, LDKu8slice data, bool resume_read);"))
- assert(line_indicates_trait_regex.match(" LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);"))
+ assert(line_indicates_trait_regex.match(" struct LDKCVec_MessageSendEventZ (*get_and_clear_pending_msg_events)(const void *this_arg);"))
assert(line_indicates_trait_regex.match(" void *(*clone)(const void *this_arg);"))
- line_field_var_regex = re.compile("^ ([A-Za-z_0-9]*) ([A-Za-z_0-9]*);$")
- assert(line_field_var_regex.match(" LDKMessageSendEventsProvider MessageSendEventsProvider;"))
+ 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 LDKCVecTempl_u8 {"))
+ assert(struct_name_regex.match("typedef struct LDKCVec_u8Z {"))
assert(struct_name_regex.match("typedef enum LDKNetwork {"))
- struct_alias_regex = re.compile("^typedef (LDK[A-Za-z_0-9]*) (LDK[A-Za-z_0-9]*);$")
- assert(struct_alias_regex.match("typedef LDKCResultTempl_bool__PeerHandleError LDKCResult_boolPeerHandleErrorZ;"))
- result_templ_structs = set()
union_enum_items = {}
result_ptr_struct_items = {}
for line in in_h:
- if in_block_comment:
+ if block_comment is not None:
if line.endswith("*/\n"):
- in_block_comment = False
+ last_block_comment = block_comment.strip("\n")
+ block_comment = None
+ else:
+ block_comment = block_comment + line.strip(" /*")
elif cur_block_obj is not None:
cur_block_obj = cur_block_obj + line
if line.startswith("} "):
for idx, struct_line in enumerate(obj_lines):
if struct_line.strip().startswith("/*"):
- in_block_comment = True
- if in_block_comment:
+ block_comment = struct_line.strip(" /*")
+ if block_comment is not None:
if struct_line.endswith("*/"):
- in_block_comment = False
+ last_struct_block_comment = block_comment.strip("\n")
+ block_comment = None
+ else:
+ block_comment = block_comment + "\n" + struct_line.strip(" /*")
else:
struct_name_match = struct_name_regex.match(struct_line)
if struct_name_match is not None:
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("LDKCVecTempl_"):
- vec_ty = vec_ty_match.group(1)
- elif struct_name.startswith("LDKC2TupleTempl_") or struct_name.startswith("LDKC3TupleTempl_"):
+ 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)
+ trait_fn_lines.append((last_struct_block_comment, 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)
if is_opaque:
opaque_structs.add(struct_name)
- with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "w") as out_java_struct:
- out_java_struct.write("package org.ldk.structs;\n\n")
- out_java_struct.write("import org.ldk.impl.bindings;\n")
- out_java_struct.write("import org.ldk.enums.*;\n\n")
- out_java_struct.write("public class " + struct_name.replace("LDK","") + " extends CommonBase {\n")
- out_java_struct.write("\t" + struct_name.replace("LDK", "") + "(Object _dummy, long ptr) { super(ptr); }\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\tbindings." + struct_name.replace("LDK","") + "_free(ptr); super.finalize();\n")
- out_java_struct.write("\t}\n\n")
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "w") as out_java_struct:
+ out_opaque_struct_human = consts.map_opaque_struct(struct_name, last_block_comment)
+ last_block_comment = None
+ out_java_struct.write(out_opaque_struct_human)
elif result_contents is not None:
- result_templ_structs.add(struct_name)
assert result_contents in result_ptr_struct_items
- elif struct_name.startswith("LDKCResultPtr_"):
+ 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:
- out_java.write("\tpublic static native long " + struct_name + "_new(")
- out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *_env, jclass _b")
- 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)
- out_c.write(", " + ty_info.c_ty + " " + e)
- out_java.write(");\n")
- out_c.write(") {\n")
- out_c.write("\t" + struct_name + "* ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
- for idx, line in enumerate(field_lines):
- if idx != 0 and idx < len(field_lines) - 2:
- ty_info = map_type(line.strip(';'), False, None, False)
- e = chr(ord('a') + idx - 1)
- if ty_info.arg_conv is not None:
- out_c.write("\t" + ty_info.arg_conv.replace("\n", "\n\t"))
- out_c.write("\n\tret->" + e + " = " + ty_info.arg_conv_name + ";\n")
- else:
- out_c.write("\tret->" + e + " = " + e + ";\n")
- assert ty_info.arg_conv_cleanup is None
- out_c.write("\treturn (long)ret;\n")
- out_c.write("}\n")
+ map_tuple(struct_name, field_lines)
elif vec_ty is not None:
- if vec_ty in opaque_structs:
- out_java.write("\tpublic static native long[] " + struct_name + "_arr_info(long vec_ptr);\n")
- out_c.write("JNIEXPORT jlongArray JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n")
- else:
- out_java.write("\tpublic static native VecOrSliceDef " + struct_name + "_arr_info(long vec_ptr);\n")
- out_c.write("JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1arr_1info(JNIEnv *env, jclass _b, jlong ptr) {\n")
- out_c.write("\t" + struct_name + " *vec = (" + struct_name + "*)ptr;\n")
- if vec_ty in opaque_structs:
- out_c.write("\tjlongArray ret = (*env)->NewLongArray(env, vec->datalen);\n")
- out_c.write("\tjlong *ret_elems = (*env)->GetPrimitiveArrayCritical(env, ret, NULL);\n")
- out_c.write("\tfor (size_t i = 0; i < vec->datalen; i++) {\n")
- out_c.write("\t\tCHECK((((long)vec->data[i].inner) & 1) == 0);\n")
- out_c.write("\t\tret_elems[i] = (long)vec->data[i].inner | (vec->data[i].is_owned ? 1 : 0);\n")
- out_c.write("\t}\n")
- out_c.write("\t(*env)->ReleasePrimitiveArrayCritical(env, ret, ret_elems, 0);\n")
- out_c.write("\treturn ret;\n")
- else:
- out_c.write("\treturn (*env)->NewObject(env, slicedef_cls, slicedef_meth, (long)vec->data, (long)vec->datalen, sizeof(" + vec_ty + "));\n")
- out_c.write("}\n")
-
- ty_info = map_type(vec_ty + " arr_elem", False, None, False)
+ ty_info = type_mapping_generator.map_type(vec_ty + " arr_elem", False, None, False, False)
if len(ty_info.java_fn_ty_arg) == 1: # ie we're a primitive of some form
out_java.write("\tpublic static native long " + struct_name + "_new(" + ty_info.java_ty + "[] elems);\n")
- out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + struct_name.replace("_", "_1") + "_1new(JNIEnv *env, jclass _b, j" + ty_info.java_ty + "Array elems){\n")
- out_c.write("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
- out_c.write("\tret->datalen = (*env)->GetArrayLength(env, elems);\n")
- out_c.write("\tif (ret->datalen == 0) {\n")
- out_c.write("\t\tret->data = NULL;\n")
- out_c.write("\t} else {\n")
- out_c.write("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n")
- out_c.write("\t\t" + ty_info.c_ty + " *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);\n")
- out_c.write("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n")
+ write_c(consts.c_fn_ty_pfx + consts.ptr_c_ty + " " + consts.c_fn_name_define_pfx(struct_name + "_new", True) + ty_info.c_ty + "Array elems) {\n")
+ write_c("\t" + struct_name + " *ret = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n")
+ write_c("\tret->datalen = " + consts.get_native_arr_len_call[0] + "elems" + consts.get_native_arr_len_call[1] + ";\n")
+ write_c("\tif (ret->datalen == 0) {\n")
+ write_c("\t\tret->data = NULL;\n")
+ write_c("\t} else {\n")
+ write_c("\t\tret->data = MALLOC(sizeof(" + vec_ty + ") * ret->datalen, \"" + struct_name + " Data\");\n")
+ native_arr_ptr_call = consts.get_native_arr_ptr_call(ty_info.ty_info)
+ write_c("\t\t" + ty_info.c_ty + " *java_elems = " + native_arr_ptr_call[0] + "elems" + native_arr_ptr_call[1] + ";\n")
+ write_c("\t\tfor (size_t i = 0; i < ret->datalen; i++) {\n")
if ty_info.arg_conv is not None:
- out_c.write("\t\t\t" + ty_info.c_ty + " arr_elem = java_elems[i];\n")
- out_c.write("\t\t\t" + ty_info.arg_conv.replace("\n", "\n\t\t\t") + "\n")
- out_c.write("\t\t\tret->data[i] = " + ty_info.arg_conv_name + ";\n")
+ 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("\t\t\tret->data[i] = java_elems[i];\n")
- out_c.write("\t\t}\n")
- out_c.write("\t\t(*env)->ReleasePrimitiveArrayCritical(env, elems, java_elems, 0);\n")
- out_c.write("\t}\n")
- out_c.write("\treturn (long)ret;\n")
- out_c.write("}\n")
+ write_c("\t\t\tret->data[i] = java_elems[i];\n")
+ write_c("\t\t}\n")
+ cleanup = consts.release_native_arr_ptr_call(ty_info.ty_info, "elems", "java_elems")
+ if cleanup is not None:
+ write_c("\t\t" + cleanup + ";\n")
+ write_c("\t}\n")
+ write_c("\treturn (long)ret;\n")
+ write_c("}\n")
+
+ if ty_info.is_native_primitive:
+ clone_fns.add(struct_name.replace("LDK", "") + "_clone")
+ write_c("static inline " + struct_name + " " + struct_name.replace("LDK", "") + "_clone(const " + struct_name + " *orig) {\n")
+ write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.c_ty + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n")
+ write_c("\tmemcpy(ret.data, orig->data, sizeof(" + ty_info.c_ty + ") * ret.datalen);\n")
+ write_c("\treturn ret;\n}\n")
+ elif (ty_info.rust_obj.replace("LDK", "") + "_clone") in clone_fns:
+ ty_name = "CVec_" + ty_info.rust_obj.replace("LDK", "") + "Z";
+ clone_fns.add(ty_name + "_clone")
+ write_c("static inline " + struct_name + " " + ty_name + "_clone(const " + struct_name + " *orig) {\n")
+ write_c("\t" + struct_name + " ret = { .data = MALLOC(sizeof(" + ty_info.rust_obj + ") * orig->datalen, \"" + struct_name + " clone bytes\"), .datalen = orig->datalen };\n")
+ write_c("\tfor (size_t i = 0; i < ret.datalen; i++) {\n")
+ write_c("\t\tret.data[i] = " + ty_info.rust_obj.replace("LDK", "") + "_clone(&orig->data[i]);\n")
+ write_c("\t}\n\treturn ret;\n}\n")
elif is_union_enum:
assert(struct_name.endswith("_Tag"))
struct_name = struct_name[:-4]
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])
+ tuple_variants = {}
+ elem_items = -1
+ for line in field_lines:
+ if line == " struct {":
+ elem_items = 0
+ elif line == " };":
+ elem_items = -1
+ elif elem_items > -1:
+ line = line.strip()
+ if line.startswith("struct "):
+ line = line[7:]
+ split = line.split(" ")
+ assert len(split) == 2
+ tuple_variants[split[1].strip(";")] = split[0]
+ elem_items += 1
+ if elem_items > 1:
+ # We don't currently support tuple variant with more than one element
+ assert False
+ map_complex_enum(struct_name, union_enum_items[struct_name], tuple_variants, last_block_comment)
+ last_block_comment = None
elif is_unitary_enum:
- map_unitary_enum(struct_name, field_lines)
+ map_unitary_enum(struct_name, field_lines, last_block_comment)
+ last_block_comment = None
elif len(trait_fn_lines) > 0:
- trait_structs.add(struct_name)
- map_trait(struct_name, field_var_lines, trait_fn_lines)
+ map_trait(struct_name, field_var_lines, trait_fn_lines, last_block_comment)
+ elif struct_name == "LDKTxOut":
+ with open(f"{sys.argv[3]}/structs/TxOut{consts.file_ext}", "w") as out_java_struct:
+ out_java_struct.write(consts.hu_struct_file_prefix)
+ out_java_struct.write("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)
if line.startswith("#include <"):
pass
elif line.startswith("/*"):
- #out_java.write("\t" + line)
if not line.endswith("*/\n"):
- in_block_comment = True
+ block_comment = line.strip(" /*")
elif line.startswith("typedef enum "):
cur_block_obj = line
elif line.startswith("typedef struct "):
cur_block_obj = line
elif line.startswith("typedef union "):
cur_block_obj = line
- elif line.startswith("typedef "):
- alias_match = struct_alias_regex.match(line)
- if alias_match.group(1) in result_templ_structs:
- out_java.write("\tpublic static native boolean " + alias_match.group(2) + "_result_ok(long arg);\n")
- out_java.write("\tpublic static native long " + alias_match.group(2) + "_get_inner(long arg);\n")
- out_c.write("JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1result_1ok (JNIEnv * env, jclass _a, jlong arg) {\n")
- out_c.write("\treturn ((" + alias_match.group(2) + "*)arg)->result_ok;\n")
- out_c.write("}\n")
- out_c.write("JNIEXPORT jlong JNICALL Java_org_ldk_impl_bindings_" + alias_match.group(2).replace("_", "_1") + "_1get_1inner (JNIEnv * env, jclass _a, jlong arg) {\n")
- contents_ty = alias_match.group(1).replace("LDKCResultTempl", "LDKCResultPtr")
- res_ty, err_ty = result_ptr_struct_items[contents_ty]
- out_c.write("\t" + alias_match.group(2) + " *val = (" + alias_match.group(2) + "*)arg;\n")
- out_c.write("\tif (val->result_ok) {\n")
- if res_ty not in opaque_structs:
- out_c.write("\t\treturn (long)val->contents.result;\n")
- else:
- out_c.write("\t\treturn (long)(val->contents.result->inner) | (val->contents.result->is_owned ? 1 : 0);\n")
- out_c.write("\t} else {\n")
- if err_ty not in opaque_structs:
- out_c.write("\t\treturn (long)val->contents.err;\n")
- else:
- out_c.write("\t\treturn (long)(val->contents.err->inner) | (val->contents.err->is_owned ? 1 : 0);\n")
- out_c.write("\t}\n}\n")
- pass
elif fn_ptr is not None:
- map_fn(line, fn_ptr, None, None)
+ map_fn(line, fn_ptr, None, None, last_block_comment)
+ last_block_comment = None
elif fn_ret_arr is not None:
- map_fn(line, fn_ret_arr, fn_ret_arr.group(4), None)
+ map_fn(line, fn_ret_arr, fn_ret_arr.group(4), None, last_block_comment)
+ last_block_comment = None
elif reg_fn is not None:
- map_fn(line, reg_fn, None, None)
+ map_fn(line, reg_fn, None, None, last_block_comment)
+ last_block_comment = None
elif const_val_regex is not None:
# TODO Map const variables
pass
else:
assert(line == "\n")
- out_java.write("}\n")
+ out_java.write(consts.bindings_footer)
for struct_name in opaque_structs:
- with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "a") as out_java_struct:
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct:
out_java_struct.write("}\n")
for struct_name in trait_structs:
- with open(sys.argv[3] + "/structs/" + struct_name.replace("LDK","") + ".java", "a") as out_java_struct:
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '')}{consts.file_ext}", "a") as out_java_struct:
+ out_java_struct.write("}\n")
+ for struct_name in complex_enums:
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDK', '').replace('COption', 'Option')}{consts.file_ext}", "a") as out_java_struct:
out_java_struct.write("}\n")
+ for struct_name in result_types:
+ with open(f"{sys.argv[3]}/structs/{struct_name.replace('LDKCResult', 'Result')}{consts.file_ext}", "a") as out_java_struct:
+ out_java_struct.write("}\n")
+
+with open(sys.argv[4], "w") as out_c:
+ out_c.write(consts.c_file_pfx)
+ out_c.write(consts.init_str())
+ out_c.write(c_file)
+with open(f"{sys.argv[3]}/structs/UtilMethods{consts.file_ext}", "a") as util:
+ util.write(consts.util_fn_sfx)
projects / ldk-java / blobdiff