from bindingstypes import ConvInfo
-
+from enum import Enum
def first_to_lower(string: str) -> str:
first = string[0]
return first.lower() + string[1:]
+class Target(Enum):
+ NODEJS = 1,
+ BROWSER = 2
+
class Consts:
- def __init__(self, DEBUG):
+ def __init__(self, DEBUG: bool, target: Target, **kwargs):
self.c_type_map = dict(
uint8_t = ['number', 'Uint8Array'],
long = ['number'],
)
+ self.wasm_decoding_map = dict(
+ int8_tArray = 'decodeArray'
+ )
+
+ self.wasm_encoding_map = dict(
+ int8_tArray = 'encodeArray',
+ )
+
self.to_hu_conv_templates = dict(
ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
)
+ self.bindings_header = self.wasm_import_header(target) + """
+export class VecOrSliceDef {
+ public dataptr: number;
+ public datalen: number;
+ public stride: number;
+ public constructor(dataptr: number, datalen: number, stride: number) {
+ this.dataptr = dataptr;
+ this.datalen = datalen;
+ this.stride = stride;
+ }
+}
+
+/*
+TODO: load WASM file
+static {
+ System.loadLibrary(\"lightningjni\");
+ init(java.lang.Enum.class, VecOrSliceDef.class);
+ init_class_cache();
+}
+
+static native void init(java.lang.Class c, java.lang.Class slicedef);
+static native void init_class_cache();
+
+public static native boolean deref_bool(long ptr);
+public static native long deref_long(long ptr);
+public static native void free_heap_ptr(long ptr);
+public static native byte[] read_bytes(long ptr, long len);
+public static native byte[] get_u8_slice_bytes(long slice_ptr);
+public static native long bytes_to_u8_vec(byte[] bytes);
+public static native long new_txpointer_copy_data(byte[] txdata);
+public static native void txpointer_free(long ptr);
+public static native byte[] txpointer_get_buffer(long ptr);
+public static native long vec_slice_len(long vec);
+public static native long new_empty_slice_vec();
+*/
+
+"""
+
+ self.bindings_footer = """
+ export async function initializeWasm(allowDoubleInitialization: boolean = false): Promise<void> {
+ if(isWasmInitialized && !allowDoubleInitialization) {
+ return;
+ }
+ const wasmInstance = await WebAssembly.instantiate(wasmModule, imports)
+ wasm = wasmInstance.exports;
+ isWasmInitialized = true;
+ }
+ """
+
self.common_base = """
export default class CommonBase {
ptr: number;
self.c_fn_args_pfx = "void* ctx_TODO"
self.file_ext = ".ts"
self.ptr_c_ty = "uint32_t"
- self.ptr_native_ty = "uint32_t"
+ self.ptr_native_ty = "number" # "uint32_t"
self.result_c_ty = "uint32_t"
self.ptr_arr = "uint32_tArray"
self.get_native_arr_len_call = ("", ".len")
else:
return None
+
+ def wasm_import_header(self, target):
+ if target == Target.NODEJS:
+ return """
+
+import * as fs from 'fs';
+const source = fs.readFileSync('./ldk.wasm');
+
+const memory = new WebAssembly.Memory({initial: 256});
+const wasmModule = new WebAssembly.Module(source);
+
+const imports: any = {};
+imports.env = {};
+
+imports.env.memoryBase = 0;
+imports.env.memory = memory;
+imports.env.tableBase = 0;
+imports.env.table = new WebAssembly.Table({initial: 4, element: 'anyfunc'});
+
+imports.env["abort"] = function () {
+ console.error("ABORT");
+};
+
+let wasm = null;
+let isWasmInitialized: boolean = false;
+
+
+// WASM CODEC
+
+const nextMultipleOfFour = (value: number) => {
+ return Math.ceil(value / 4) * 4;
+}
+
+const encodeArray = (inputArray) => {
+ // TODO: (matt) is this correct, or should it go back to length * 4?
+ // const cArrayPointer = wasm.wasm_malloc(inputArray.length * 4);
+ const cArrayPointer = wasm.wasm_malloc(nextMultipleOfFour(inputArray.length));
+
+ const arrayMemoryView = new Uint32Array(memory.buffer, cArrayPointer, inputArray.length);
+ arrayMemoryView.set(inputArray);
+ return cArrayPointer;
+}
+
+const decodeArray = (arrayPointer, free = true) => {
+ const arraySizeViewer = new Uint32Array(
+ memory.buffer, // value
+ arrayPointer, // offset
+ 1 // one int
+ );
+ const arraySize = arraySizeViewer[0];
+ const actualArrayViewer = new Uint32Array(
+ memory.buffer, // value
+ arrayPointer, // offset
+ arraySize + 1
+ );
+ const actualArray = actualArrayViewer.slice(1, arraySize + 1);
+ if (free) {
+ // wasm.free_array(arrayPointer);
+ wasm.wasm_free(arrayPointer); // TODO: check if passing *void still captures remaining values
+ }
+ return actualArray;
+}
+
+const encodeString = (string) => {
+ // make malloc count divisible by 4
+ const memoryNeed = nextMultipleOfFour(string.length + 1);
+ const stringPointer = wasm.wasm_malloc(memoryNeed);
+ const stringMemoryView = new Uint8Array(
+ memory.buffer, // value
+ stringPointer, // offset
+ string.length + 1 // length
+ );
+ for (let i = 0; i < string.length; i++) {
+ stringMemoryView[i] = string.charCodeAt(i);
+ }
+ stringMemoryView[string.length] = 0;
+ return stringPointer;
+}
+
+const decodeString = (stringPointer, free = true) => {
+ const memoryView = new Uint8Array(memory.buffer, stringPointer);
+ let cursor = 0;
+ let result = '';
+
+ while (memoryView[cursor] !== 0) {
+ result += String.fromCharCode(memoryView[cursor]);
+ cursor++;
+ }
+
+ if (free) {
+ wasm.wasm_free(stringPointer);
+ }
+
+ return result;
+};
+
+
+ """
+ return ''
+
def init_str(self, c_array_class_caches):
return ""
return ret
def native_c_map_trait(self, struct_name, field_var_conversions, field_function_lines):
- out_java = "out_java:native_c_map_trait"
- out_java_trait = "out_java_trait:native_c_map_trait"
- out_c = "out_c:native_c_map_trait"
-
-
- out_java_trait = ""
- out_java = ""
+ out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
constructor_arguments = ""
super_instantiator = ""
- out_java_trait = f"""
+ out_typescript_human = f"""
{self.hu_struct_file_prefix}
export class {struct_name.replace("LDK","")} extends CommonBase {{
- out_java = out_java + "\tpublic interface " + struct_name + " {\n"
+ out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
java_meths = []
for fn_line in field_function_lines:
- java_meth_descr = "("
if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
- out_java = out_java + "\t\t " + fn_line.ret_ty_info.java_ty + " " + fn_line.fn_name + "("
+ out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
for idx, arg_conv_info in enumerate(fn_line.args_ty):
if idx >= 1:
- out_java = out_java + ", "
- # out_java_trait = out_java_trait + ", "
- out_java = out_java + arg_conv_info.java_ty + " " + arg_conv_info.arg_name
- # out_java_trait = out_java_trait + arg_conv_info.java_hu_ty + " " + arg_conv_info.arg_name
+ out_typescript_bindings = out_typescript_bindings + ", "
+ out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
- out_java = out_java + ");\n"
- # out_java_trait = out_java_trait + ");\n"
+ out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
+ out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
- out_java = out_java + "\t}\n"
-
- out_java = out_java + "\tpublic static native long " + struct_name + "_new(" + struct_name + " impl"
+ out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
for var in field_var_conversions:
if isinstance(var, ConvInfo):
- out_java = out_java + ", " + var.java_ty + " " + var.arg_name
+ out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
else:
- out_java = out_java + ", " + var[0] + " " + var[1]
- out_java = out_java + ");\n"
- out_java = out_java + "\tpublic static native " + struct_name + " " + struct_name + "_get_obj_from_jcalls(long val);\n"
+ out_typescript_bindings += f", {var[1]}: {var[0]}"
+
+ out_typescript_bindings += f"""): number {{
+ throw new Error('unimplemented'); // TODO: bind to WASM
+ }}
+
+ export function {struct_name}_get_obj_from_jcalls(val: number): {struct_name} {{
+ throw new Error('unimplemented'); // TODO: bind to WASM
+ }}
+ """
+
+ out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
# Now that we've written out our java code (and created java_meths), generate C
out_c = "typedef struct " + struct_name + "_JCalls {\n"
out_c = out_c + "}\n"
- return (out_java, out_java_trait, out_c)
+ return (out_typescript_bindings, out_typescript_human, out_c)
def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
java_hu_type = struct_name.replace("LDK", "")
out_java_enum += ("}\n")
out_java_enum += (java_hu_subclasses)
return (out_java, out_java_enum, out_c)
+
+ def map_opaque_struct(self, struct_name):
+
+ implementations = ""
+ method_header = ""
+ if struct_name.startswith("LDKLocked"):
+ implementations += "implements AutoCloseable "
+ method_header = """
+ public close() {
+ """
+ else:
+ method_header = """
+ protected finalize() {
+ super.finalize();
+ """
+
+ out_opaque_struct_human = f"""
+ {self.hu_struct_file_prefix}
+
+ export default class {struct_name.replace("LDK","")} extends CommonBase {implementations}{{
+ constructor(_dummy: object, ptr: number) {{
+ super(ptr);
+ }}
+
+ {method_header}
+ if (this.ptr != 0) {{
+ bindings.{struct_name.replace("LDK","")}_free(this.ptr);
+ }}
+ }}
+ """
+ return out_opaque_struct_human
+
+ def map_function(self, argument_types, c_call_string, is_free, method_name, return_type_info, struct_meth, default_constructor_args, takes_self, args_known, has_out_java_struct: bool, type_mapping_generator):
+ out_java = ""
+ out_c = ""
+ out_java_struct = None
+
+ out_java += ("\tpublic static native ")
+ out_c += (self.c_fn_ty_pfx)
+ out_c += (return_type_info.c_ty)
+ out_java += (return_type_info.java_ty)
+ if return_type_info.ret_conv is not None:
+ ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
+ out_java += (" " + method_name + "(")
+ out_c += (" " + self.c_fn_name_pfx + method_name.replace('_', '_1') + "(" + self.c_fn_args_pfx)
+
+ method_argument_string = ""
+ native_call_argument_string = ""
+ for idx, arg_conv_info in enumerate(argument_types):
+ if idx != 0:
+ method_argument_string += (", ")
+ native_call_argument_string += ', '
+ if arg_conv_info.c_ty != "void":
+ out_c += (", ")
+ if arg_conv_info.c_ty != "void":
+ out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
+ needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
+ native_argument = arg_conv_info.arg_name
+ if needs_encoding:
+ converter = self.wasm_encoding_map[arg_conv_info.c_ty]
+ native_argument = f"{converter}({arg_conv_info.arg_name})"
+ method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
+ native_call_argument_string += native_argument
+
+ has_return_value = return_type_info.c_ty != 'void'
+ needs_decoding = return_type_info.c_ty in self.wasm_decoding_map
+ return_statement = 'return nativeResponseValue;'
+ if not has_return_value:
+ return_statement = '// debug statements here'
+ elif needs_decoding:
+ converter = self.wasm_decoding_map[return_type_info.c_ty]
+ return_statement = f"return {converter}(nativeResponseValue);"
+
+ out_java = f"""\texport function {method_name}({method_argument_string}): {return_type_info.java_ty} {{
+ if(!isWasmInitialized){{
+ throw new Error("initializeWasm() must be awaited first!");
+ }}
+ const nativeResponseValue = wasm.{method_name}({native_call_argument_string});
+ {return_statement}\n\t}}
+ \n"""
+
+
+
+ if has_out_java_struct:
+ out_java_struct = ""
+ if not args_known:
+ out_java_struct += ("\t// Skipped " + method_name + "\n")
+ has_out_java_struct = False
+ else:
+ meth_n = method_name[len(struct_meth) + 1:]
+ if not takes_self:
+ out_java_struct += (
+ "\tpublic static " + return_type_info.java_hu_ty + " constructor_" + meth_n + "(")
+ else:
+ out_java_struct += ("\tpublic " + return_type_info.java_hu_ty + " " + meth_n + "(")
+ for idx, arg in enumerate(argument_types):
+ if idx != 0:
+ if not takes_self or idx > 1:
+ out_java_struct += (", ")
+ elif takes_self:
+ continue
+ if arg.java_ty != "void":
+ if arg.arg_name in default_constructor_args:
+ for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
+ if explode_idx != 0:
+ out_java_struct += (", ")
+ out_java_struct += (
+ explode_arg.java_hu_ty + " " + arg.arg_name + "_" + explode_arg.arg_name)
+ else:
+ out_java_struct += (arg.java_hu_ty + " " + arg.arg_name)
+
+ out_c += (") {\n")
+ if out_java_struct is not None:
+ out_java_struct += (") {\n")
+ for info in argument_types:
+ if info.arg_conv is not None:
+ out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
+ if return_type_info.ret_conv is not None:
+ out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
+ elif return_type_info.c_ty != "void":
+ out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
+ else:
+ out_c += ("\t")
+ if c_call_string is None:
+ out_c += (method_name + "(")
+ else:
+ out_c += (c_call_string)
+ for idx, info in enumerate(argument_types):
+ if info.arg_conv_name is not None:
+ if idx != 0:
+ out_c += (", ")
+ elif c_call_string is not None:
+ continue
+ out_c += (info.arg_conv_name)
+ out_c += (")")
+ if return_type_info.ret_conv is not None:
+ out_c += (ret_conv_sfx.replace('\n', '\n\t'))
+ else:
+ out_c += (";")
+ for info in argument_types:
+ if info.arg_conv_cleanup is not None:
+ out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
+ if return_type_info.ret_conv is not None:
+ out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
+ elif return_type_info.c_ty != "void":
+ out_c += ("\n\treturn ret_val;")
+ out_c += ("\n}\n\n")
+
+ if has_out_java_struct:
+ out_java_struct += ("\t\t")
+ if return_type_info.java_ty != "void":
+ out_java_struct += (return_type_info.java_ty + " ret = ")
+ out_java_struct += ("bindings." + method_name + "(")
+ for idx, info in enumerate(argument_types):
+ if idx != 0:
+ out_java_struct += (", ")
+ if idx == 0 and takes_self:
+ out_java_struct += ("this.ptr")
+ elif info.arg_name in default_constructor_args:
+ out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
+ for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
+ if explode_idx != 0:
+ out_java_struct += (", ")
+ expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
+ if explode_arg.from_hu_conv is not None:
+ out_java_struct += (
+ explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
+ else:
+ out_java_struct += (expl_arg_name)
+ out_java_struct += (")")
+ elif info.from_hu_conv is not None:
+ out_java_struct += (info.from_hu_conv[0])
+ else:
+ out_java_struct += (info.arg_name)
+ out_java_struct += (");\n")
+ if return_type_info.to_hu_conv is not None:
+ if not takes_self:
+ out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
+ return_type_info.to_hu_conv_name) + "\n")
+ else:
+ out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
+
+ for idx, info in enumerate(argument_types):
+ if idx == 0 and takes_self:
+ pass
+ elif info.arg_name in default_constructor_args:
+ for explode_arg in default_constructor_args[info.arg_name]:
+ expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
+ if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
+ out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
+ expl_arg_name).replace(
+ "this", return_type_info.to_hu_conv_name) + ";\n")
+ elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
+ if not takes_self and return_type_info.to_hu_conv_name is not None:
+ out_java_struct += (
+ "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name) + ";\n")
+ else:
+ out_java_struct += ("\t\t" + info.from_hu_conv[1] + ";\n")
+
+ if return_type_info.to_hu_conv_name is not None:
+ out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
+ elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
+ out_java_struct += ("\t\treturn ret;\n")
+ out_java_struct += ("\t}\n\n")
+
+ return (out_java, out_c, out_java_struct)
projects / ldk-java / blobdiff