X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=typescript_strings.py;h=a12370f4e2b78cc47c8d5836da8d34fc5a2b8d2b;hb=8fbb9c1f80dbb3d3f5bd3472f2fa8053a8437141;hp=379eaa6bd3f48c58421153c9e1c86307a2fd43c4;hpb=cbb0beb4b0d98b743f600c154a6079c2b1463c9b;p=ldk-java diff --git a/typescript_strings.py b/typescript_strings.py index 379eaa6b..a12370f4 100644 --- a/typescript_strings.py +++ b/typescript_strings.py @@ -14,11 +14,13 @@ class Consts: def __init__(self, DEBUG: bool, target: Target, outdir: str, **kwargs): self.outdir = outdir self.struct_file_suffixes = {} + self.function_ptr_counter = 0 + self.function_ptrs = {} self.c_type_map = dict( uint8_t = ['number', 'Uint8Array'], uint16_t = ['number', 'Uint16Array'], uint32_t = ['number', 'Uint32Array'], - uint64_t = ['number'], + uint64_t = ['BigInt'], ) self.wasm_decoding_map = dict( @@ -34,55 +36,16 @@ class Consts: 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_header = self.wasm_import_header(target) self.bindings_version_file = "" self.bindings_footer = "" - self.util_fn_pfx = "" - self.util_fn_sfx = "" - self.common_base = """ function freer(f: () => void) { f() } const finalizer = new FinalizationRegistry(freer); -function get_freeer(ptr: number, free_fn: (number) => void) { +function get_freeer(ptr: number, free_fn: (ptr: number) => void) { return () => { free_fn(ptr); } @@ -97,13 +60,40 @@ export default class CommonBase { finalizer.register(this, get_freeer(ptr, free_fn)); } } + // In Java, protected means "any subclass can access fields on any other subclass'" + // In TypeScript, protected means "any subclass can access parent fields on instances of itself" + // To work around this, we add accessors for other instances' protected fields here. protected static add_ref_from(holder: CommonBase, referent: object) { holder.ptrs_to.push(referent); } - public _test_only_get_ptr(): number { return this.ptr; } + protected static get_ptr_of(o: CommonBase) { + return o.ptr; + } + protected static set_null_skip_free(o: CommonBase) { + o.ptr = 0; + finalizer.unregister(o); + } } """ + self.txout_defn = """export class TxOut extends CommonBase { + /** The script_pubkey in this output */ + public script_pubkey: Uint8Array; + /** The value, in satoshis, of this output */ + public value: BigInt; + + /* @internal */ + public constructor(_dummy: object, ptr: number) { + super(ptr, bindings.TxOut_free); + this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr); + this.value = bindings.TxOut_get_value(ptr); + } + public constructor_new(value: BigInt, script_pubkey: Uint8Array): TxOut { + return new TxOut(null, bindings.TxOut_new(script_pubkey, value)); + } +}""" + self.obj_defined(["TxOut"], "structs") + self.c_file_pfx = """#include "js-wasm.h" #include #include @@ -117,6 +107,11 @@ void __attribute__((noreturn)) abort(void); static inline void assert(bool expression) { if (!expression) { abort(); } } + +uint32_t __attribute__((visibility("default"))) test_bigint_pass_deadbeef0badf00d(uint64_t val) { + return val == 0xdeadbeef0badf00dULL; +} + """ if not DEBUG: @@ -297,8 +292,11 @@ void __attribute__((visibility("default"))) TS_free(uint32_t ptr) { self.hu_struct_file_prefix = """ import CommonBase from './CommonBase.mjs'; import * as bindings from '../bindings.mjs' +import * as InternalUtils from '../InternalUtils.mjs' """ + self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n" + self.util_fn_sfx = "}" self.c_fn_ty_pfx = "" self.file_ext = ".mts" self.ptr_c_ty = "uint32_t" @@ -308,6 +306,12 @@ import * as bindings from '../bindings.mjs' self.is_arr_some_check = ("", " != 0") self.get_native_arr_len_call = ("", "->arr_len") + with open(outdir + "/InternalUtils.mts", "w") as f: + f.write("export function check_arr_len(arr: Uint8Array, len: number): Uint8Array {\n") + f.write("\tif (arr.length != len) { throw new Error(\"Expected array of length \" + len + \"got \" + arr.length); }\n") + f.write("\treturn arr;\n") + f.write("}") + def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var): return None def create_native_arr_call(self, arr_len, ty_info): @@ -342,6 +346,9 @@ import * as bindings from '../bindings.mjs' else: return None + def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty): + return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null" + def str_ref_to_native_call(self, var_name, str_len): return "str_ref_to_ts(" + var_name + ", " + str_len + ")" def str_ref_to_c_call(self, var_name): @@ -352,25 +359,14 @@ import * as bindings from '../bindings.mjs' def wasm_import_header(self, target): res = """ -const memory = new WebAssembly.Memory({initial: 256}); - 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'}); - +var js_objs: Array> = []; +var js_invoke: Function; imports.env["abort"] = function () { console.error("ABORT"); }; -imports.env["js_invoke_function"] = function(fn: number, arg1: number, arg2: number, arg3: number, arg4: number, arg5: number, arg6: number, arg7: number, arg8: number, arg9: number, arg10: number) { - console.log('function called from wasm:', fn, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10); -}; -imports.env["js_free_function_ptr"] = function(fn: number) { - console.log("function ptr free'd from wasm:", fn); -}; imports.wasi_snapshot_preview1 = { "fd_write" : () => { @@ -390,25 +386,33 @@ imports.wasi_snapshot_preview1 = { }, }; -var wasm = null; +var wasm: any = null; let isWasmInitialized: boolean = false; """ if target == Target.NODEJS: res += """import * as fs from 'fs'; -export async function initializeWasm(path) { +export async function initializeWasm(path: string) { const source = fs.readFileSync(path); + imports.env["js_invoke_function"] = js_invoke; const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports); wasm = wasmInstance.exports; + if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) { + throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint"); + } isWasmInitialized = true; }; """ else: res += """ -export async function initializeWasm(uri) { +export async function initializeWasm(uri: string) { const stream = fetch(uri); + imports.env["js_invoke_function"] = js_invoke; const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports); wasm = wasmInstance.exports; + if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) { + throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint"); + } isWasmInitialized = true; }; @@ -423,35 +427,35 @@ const nextMultipleOfFour = (value: number) => { return Math.ceil(value / 4) * 4; } -const encodeUint8Array = (inputArray) => { +const encodeUint8Array = (inputArray: Uint8Array) => { const cArrayPointer = wasm.TS_malloc(inputArray.length + 4); - const arrayLengthView = new Uint32Array(memory.buffer, cArrayPointer, 1); + const arrayLengthView = new Uint32Array(wasm.memory.buffer, cArrayPointer, 1); arrayLengthView[0] = inputArray.length; - const arrayMemoryView = new Uint8Array(memory.buffer, cArrayPointer + 4, inputArray.length); + const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 4, inputArray.length); arrayMemoryView.set(inputArray); return cArrayPointer; } -const encodeUint32Array = (inputArray) => { +const encodeUint32Array = (inputArray: Uint32Array) => { const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4); - const arrayMemoryView = new Uint32Array(memory.buffer, cArrayPointer, inputArray.length); + const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer, inputArray.length); arrayMemoryView.set(inputArray, 1); arrayMemoryView[0] = inputArray.length; return cArrayPointer; } -const getArrayLength = (arrayPointer) => { +const getArrayLength = (arrayPointer: number) => { const arraySizeViewer = new Uint32Array( - memory.buffer, // value + wasm.memory.buffer, // value arrayPointer, // offset 1 // one int ); return arraySizeViewer[0]; } -const decodeUint8Array = (arrayPointer, free = true) => { +const decodeUint8Array = (arrayPointer: number, free = true) => { const arraySize = getArrayLength(arrayPointer); const actualArrayViewer = new Uint8Array( - memory.buffer, // value + wasm.memory.buffer, // value arrayPointer + 4, // offset (ignoring length bytes) arraySize // uint8 count ); @@ -463,10 +467,10 @@ const decodeUint8Array = (arrayPointer, free = true) => { } return actualArray; } -const decodeUint32Array = (arrayPointer, free = true) => { +const decodeUint32Array = (arrayPointer: number, free = true) => { const arraySize = getArrayLength(arrayPointer); const actualArrayViewer = new Uint32Array( - memory.buffer, // value + wasm.memory.buffer, // value arrayPointer + 4, // offset (ignoring length bytes) arraySize // uint32 count ); @@ -479,12 +483,12 @@ const decodeUint32Array = (arrayPointer, free = true) => { return actualArray; } -const encodeString = (string) => { +const encodeString = (string: string) => { // make malloc count divisible by 4 const memoryNeed = nextMultipleOfFour(string.length + 1); const stringPointer = wasm.TS_malloc(memoryNeed); const stringMemoryView = new Uint8Array( - memory.buffer, // value + wasm.memory.buffer, // value stringPointer, // offset string.length + 1 // length ); @@ -495,8 +499,8 @@ const encodeString = (string) => { return stringPointer; } -const decodeString = (stringPointer, free = true) => { - const memoryView = new Uint8Array(memory.buffer, stringPointer); +const decodeString = (stringPointer: number, free = true) => { + const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer); let cursor = 0; let result = ''; @@ -516,9 +520,22 @@ const decodeString = (stringPointer, free = true) => { def init_str(self): return "" + def constr_hu_array(self, ty_info, arr_len): + return "new Array(" + arr_len + ").fill(null)" + def var_decl_statement(self, ty_string, var_name, statement): return "const " + var_name + ": " + ty_string + " = " + statement + def for_n_in_range(self, n, minimum, maximum): + return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {" + def for_n_in_arr(self, n, arr_name, arr_elem_ty): + return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })") + + def get_ptr(self, var): + return "CommonBase.get_ptr_of(" + var + ")" + def set_null_skip_free(self, var): + return "CommonBase.set_null_skip_free(" + var + ");" + def add_ref(self, holder, referent): return "CommonBase.add_ref_from(" + holder + ", " + referent + ")" @@ -581,25 +598,39 @@ const decodeString = (stringPointer, free = true) => { def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment): out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n" - constructor_arguments = "" super_instantiator = "" + bindings_instantiator = "" pointer_to_adder = "" impl_constructor_arguments = "" for var in flattened_field_var_conversions: if isinstance(var, ConvInfo): - constructor_arguments += f", {first_to_lower(var.arg_name)}?: {var.java_hu_ty}" impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}" + super_instantiator += first_to_lower(var.arg_name) + ", " if var.from_hu_conv is not None: - super_instantiator += ", " + var.from_hu_conv[0] + bindings_instantiator += ", " + var.from_hu_conv[0] if var.from_hu_conv[1] != "": - pointer_to_adder += var.from_hu_conv[1] + ";\n" + pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n" else: - super_instantiator += ", " + first_to_lower(var.arg_name) + bindings_instantiator += ", " + first_to_lower(var.arg_name) + else: + bindings_instantiator += ", " + first_to_lower(var[1]) + ".bindings_instance" + super_instantiator += first_to_lower(var[1]) + "_impl, " + pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n" + impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface" + + super_constructor_statements = "" + trait_constructor_arguments = "" + for var in field_var_conversions: + if isinstance(var, ConvInfo): + trait_constructor_arguments += ", " + var.arg_name else: - constructor_arguments += f", {first_to_lower(var[1])}?: bindings.{var[0]}" - super_instantiator += ", " + first_to_lower(var[1]) - pointer_to_adder += "this.ptrs_to.push(" + first_to_lower(var[1]) + ");\n" - impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}.{var[0].replace('LDK', '')}Interface" + super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + super_instantiator + ");\n" + trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".bindings_instance" + for suparg in var[2]: + if isinstance(suparg, ConvInfo): + trait_constructor_arguments += ", " + suparg.arg_name + else: + trait_constructor_arguments += ", " + suparg[1] # BUILD INTERFACE METHODS out_java_interface = "" @@ -608,8 +639,8 @@ const decodeString = (stringPointer, free = true) => { for fn_line in field_function_lines: java_method_descriptor = "" if fn_line.fn_name != "free" and fn_line.fn_name != "cloned": - out_java_interface += fn_line.fn_name + "(" - out_interface_implementation_overrides += f"{fn_line.fn_name} (" + out_java_interface += "\t" + fn_line.fn_name + "(" + out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} (" for idx, arg_conv_info in enumerate(fn_line.args_ty): if idx >= 1: @@ -618,22 +649,20 @@ const decodeString = (stringPointer, free = true) => { out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}" out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}" java_method_descriptor += arg_conv_info.java_fn_ty_arg - out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n\t\t\t\t" + out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n" java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg java_methods.append((fn_line.fn_name, java_method_descriptor)) out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n" - interface_method_override_inset = "\t\t\t\t\t\t" - interface_implementation_inset = "\t\t\t\t\t\t\t" for arg_info in fn_line.args_ty: if arg_info.to_hu_conv is not None: - out_interface_implementation_overrides += interface_implementation_inset + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n" + out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n" if fn_line.ret_ty_info.java_ty != "void": - out_interface_implementation_overrides += interface_implementation_inset + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_line.fn_name + "(" + out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "(" else: - out_interface_implementation_overrides += f"{interface_implementation_inset}arg." + fn_line.fn_name + "(" + out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "(" for idx, arg_info in enumerate(fn_line.args_ty): if idx != 0: @@ -646,78 +675,56 @@ const decodeString = (stringPointer, free = true) => { out_interface_implementation_overrides += ");\n" if fn_line.ret_ty_info.java_ty != "void": if fn_line.ret_ty_info.from_hu_conv is not None: - out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + f"result: {fn_line.ret_ty_info.java_ty} = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n" + out_interface_implementation_overrides += "\t\t\t\t" + f"const result: {fn_line.ret_ty_info.java_ty} = " + fn_line.ret_ty_info.from_hu_conv[0].replace("\n", "\n\t\t\t\t") + ";\n" if fn_line.ret_ty_info.from_hu_conv[1] != "": - out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n" + out_interface_implementation_overrides += "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held").replace("\n", "\n\t\t\t\t") + ";\n" #if fn_line.ret_ty_info.rust_obj in result_types: # XXX: We need to handle this in conversion logic so that its cross-language! # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n" - out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn result;\n" - else: - out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn ret;\n" - out_interface_implementation_overrides += f"{interface_method_override_inset}}},\n\n{interface_method_override_inset}" - - trait_constructor_arguments = "" - for var in field_var_conversions: - if isinstance(var, ConvInfo): - trait_constructor_arguments += ", " + var.arg_name - else: - trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl" - for suparg in var[2]: - if isinstance(suparg, ConvInfo): - trait_constructor_arguments += ", " + suparg.arg_name + out_interface_implementation_overrides += "\t\t\t\treturn result;\n" else: - trait_constructor_arguments += ", " + suparg[1] - trait_constructor_arguments += ").bindings_instance" - for suparg in var[2]: - if isinstance(suparg, ConvInfo): - trait_constructor_arguments += ", " + suparg.arg_name - else: - trait_constructor_arguments += ", " + suparg[1] + out_interface_implementation_overrides += "\t\t\t\treturn ret;\n" + out_interface_implementation_overrides += f"\t\t\t}},\n" out_typescript_human = f""" {self.hu_struct_file_prefix} -{struct_name.replace("LDK","")} extends CommonBase {{ +export interface {struct_name.replace("LDK", "")}Interface {{ +{out_java_interface}}} - bindings_instance?: bindings.{struct_name}; +class {struct_name}Holder {{ + held: {struct_name.replace("LDK", "")}; +}} - constructor(ptr?: number, arg?: bindings.{struct_name}{constructor_arguments}) {{ - if (Number.isFinite(ptr)) {{ - super(ptr, bindings.{struct_name.replace("LDK","")}_free); - this.bindings_instance = null; - }} else {{ - // TODO: private constructor instantiation - super(bindings.{struct_name}_new(arg{super_instantiator})); - this.ptrs_to.push(arg); - {pointer_to_adder} - }} +export class {struct_name.replace("LDK","")} extends CommonBase {{ + /* @internal */ + public bindings_instance?: bindings.{struct_name}; + + /* @internal */ + constructor(_dummy: object, ptr: number) {{ + super(ptr, bindings.{struct_name.replace("LDK","")}_free); + this.bindings_instance = null; }} static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{ const impl_holder: {struct_name}Holder = new {struct_name}Holder(); - let structImplementation = {{ - // todo: in-line interface filling - {out_interface_implementation_overrides} - }}; - impl_holder.held = new {struct_name.replace("LDK", "")} (null, structImplementation{trait_constructor_arguments}); - }} + let structImplementation = {{ +{out_interface_implementation_overrides} }} as bindings.{struct_name}; +{super_constructor_statements} const ptr: number = bindings.{struct_name}_new(structImplementation{bindings_instantiator}); - export interface {struct_name.replace("LDK", "")}Interface {{ - {out_java_interface} - }} - - class {struct_name}Holder {{ - held: {struct_name.replace("LDK", "")}; + impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr); + impl_holder.held.bindings_instance = structImplementation; +{pointer_to_adder} return impl_holder.held; }} """ + self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs") - out_typescript_bindings += "\t\texport interface " + struct_name + " {\n" + out_typescript_bindings += "export interface " + struct_name + " {\n" java_meths = [] for fn_line in field_function_lines: if fn_line.fn_name != "free" and fn_line.fn_name != "cloned": - out_typescript_bindings += f"\t\t\t{fn_line.fn_name} (" + out_typescript_bindings += f"\t{fn_line.fn_name} (" for idx, arg_conv_info in enumerate(fn_line.args_ty): if idx >= 1: @@ -726,9 +733,9 @@ const decodeString = (stringPointer, free = true) => { out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n" - out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n" + out_typescript_bindings += "}\n\n" - out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}" + out_typescript_bindings += f"export function {struct_name}_new(impl: {struct_name}" for var in flattened_field_var_conversions: if isinstance(var, ConvInfo): out_typescript_bindings += f", {var.arg_name}: {var.java_ty}" @@ -736,15 +743,24 @@ const decodeString = (stringPointer, free = true) => { out_typescript_bindings += f", {var[1]}: {var[0]}" out_typescript_bindings += f"""): number {{ - throw new Error('unimplemented'); // TODO: bind to WASM - }} + if(!isWasmInitialized) {{ + throw new Error("initializeWasm() must be awaited first!"); + }} + var new_obj_idx = js_objs.length; + for (var i = 0; i < js_objs.length; i++) {{ + if (js_objs[i] == null || js_objs[i] == undefined) {{ new_obj_idx = i; break; }} + }} + js_objs[i] = new WeakRef(impl); + return wasm.TS_{struct_name}_new(i); +}} """ 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 + "\tatomic_size_t refcnt;\n" + out_c += "\tatomic_size_t refcnt;\n" + out_c += "\tuint32_t instance_ptr;\n" for var in flattened_field_var_conversions: if isinstance(var, ConvInfo): # We're a regular ol' field @@ -752,9 +768,6 @@ const decodeString = (stringPointer, free = true) => { else: # We're a supertrait out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n" - for fn in field_function_lines: - if fn.fn_name != "free" and fn.fn_name != "cloned": - out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n" out_c = out_c + "} " + struct_name + "_JCalls;\n" for fn_line in field_function_lines: @@ -762,9 +775,6 @@ const decodeString = (stringPointer, free = true) => { out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n" out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n" out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n" - for fn in field_function_lines: - if fn.fn_name != "free" and fn.fn_name != "cloned": - out_c = out_c + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n" out_c = out_c + "\t\tFREE(j_calls);\n" out_c = out_c + "\t}\n}\n" @@ -791,15 +801,18 @@ const decodeString = (stringPointer, free = true) => { if fn_line.ret_ty_info.c_ty.endswith("Array"): out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")" - out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth" + out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) elif fn_line.ret_ty_info.java_ty == "void": - out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth" + out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) elif fn_line.ret_ty_info.java_ty == "String": - out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth" + out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) elif not fn_line.ret_ty_info.passed_as_ptr: - out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth" + out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) else: - out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth" + out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) + + self.function_ptrs[self.function_ptr_counter] = (struct_name, fn_line.fn_name) + self.function_ptr_counter += 1 for idx, arg_info in enumerate(fn_line.args_ty): if arg_info.ret_conv is not None: @@ -821,17 +834,17 @@ const decodeString = (stringPointer, free = true) => { out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n" out_c = out_c + "}\n" - out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o" + out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (JSValue o" for var in flattened_field_var_conversions: if isinstance(var, ConvInfo): out_c = out_c + ", " + var.c_ty + " " + var.arg_name else: - out_c = out_c + ", /*TODO: JS Object Reference */void* " + var[1] + out_c = out_c + ", JSValue " + var[1] out_c = out_c + ") {\n" out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n" out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n" - out_c = out_c + "\t//TODO: Assign calls->o from o\n" + out_c = out_c + "\tcalls->instance_ptr = o;\n" for (fn_name, java_meth_descr) in java_meths: if fn_name != "free" and fn_name != "cloned": @@ -873,12 +886,12 @@ const decodeString = (stringPointer, free = true) => { out_c = out_c + "\treturn ret;\n" out_c = out_c + "}\n" - out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "/*TODO: JS Object Reference */void* o" + out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "JSValue o" for var in flattened_field_var_conversions: if isinstance(var, ConvInfo): out_c = out_c + ", " + var.c_ty + " " + var.arg_name else: - out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1] + out_c = out_c + ", JSValue " + var[1] out_c = out_c + ") {\n" out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n" out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o" @@ -914,11 +927,11 @@ const decodeString = (stringPointer, free = true) => { java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n" java_hu_subclasses = "" - out_java += "\texport class " + struct_name + " {\n" - out_java += "\t\tprotected constructor() {}\n" + out_java += "export class " + struct_name + " {\n" + out_java += "\tprotected constructor() {}\n" java_subclasses = "" for var in variant_list: - java_subclasses += "\texport class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n" + java_subclasses += "export class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n" java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n" java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n" java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n" @@ -935,14 +948,14 @@ const decodeString = (stringPointer, free = true) => { if idx > 0: init_meth_params += ", " init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty - java_subclasses += "\t\tconstructor(" + init_meth_params + ") { super(); }\n" - java_subclasses += "\t}\n" + java_subclasses += "\tconstructor(" + init_meth_params + ") { super(); }\n" + java_subclasses += "}\n" java_hu_class += "\t\t}\n" java_hu_subclasses += "\t/* @internal */\n" java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n" java_hu_subclasses = java_hu_subclasses + hu_conv_body java_hu_subclasses = java_hu_subclasses + "\t}\n}\n" - out_java += ("\t}\n") + out_java += "}\n" out_java += java_subclasses java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n" out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr") @@ -979,12 +992,12 @@ const decodeString = (stringPointer, free = true) => { def map_opaque_struct(self, struct_name, struct_doc_comment): implementations = "" method_header = "" - if struct_name.startswith("LDKLocked"): - return "NOT IMPLEMENTED" hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "") - out_opaque_struct_human = f"""{self.hu_struct_file_prefix} - + out_opaque_struct_human = f"{self.hu_struct_file_prefix}" + if struct_name.startswith("LDKLocked"): + out_opaque_struct_human += "/** XXX: DO NOT USE THIS - it remains locked until the GC runs (if that ever happens */" + out_opaque_struct_human += f""" export class {hu_name} extends CommonBase {implementations}{{ /* @internal */ public constructor(_dummy: object, ptr: number) {{ @@ -998,6 +1011,64 @@ export class {hu_name} extends CommonBase {implementations}{{ def map_tuple(self, struct_name): return self.map_opaque_struct(struct_name, "A Tuple") + def map_result(self, struct_name, res_map, err_map): + human_ty = struct_name.replace("LDKCResult", "Result") + + suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n" + if res_map.java_hu_ty != "void": + suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n" + suffixes += f""" + /* @internal */ + public constructor(_dummy: object, ptr: number) {{ + super(_dummy, ptr); +""" + if res_map.java_hu_ty == "void": + pass + elif res_map.to_hu_conv is not None: + suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n" + suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t") + suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n" + else: + suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n" + suffixes += "\t}\n}\n" + + suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n" + if err_map.java_hu_ty != "void": + suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n" + suffixes += f""" + /* @internal */ + public constructor(_dummy: object, ptr: number) {{ + super(_dummy, ptr); +""" + if err_map.java_hu_ty == "void": + pass + elif err_map.to_hu_conv is not None: + suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n" + suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t") + suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n" + else: + suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n" + suffixes += "\t}\n}" + + self.struct_file_suffixes[human_ty] = suffixes + self.obj_defined([human_ty], "structs") + + return f"""{self.hu_struct_file_prefix} + +export class {human_ty} extends CommonBase {{ + protected constructor(_dummy: object, ptr: number) {{ + super(ptr, bindings.{struct_name.replace("LDK","")}_free); + }} + /* @internal */ + public static constr_from_ptr(ptr: number): {human_ty} {{ + if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{ + return new {human_ty}_OK(null, ptr); + }} else {{ + return new {human_ty}_Err(null, ptr); + }} + }} +""" + def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string): has_return_value = return_c_ty != 'void' needs_decoding = return_c_ty in self.wasm_decoding_map @@ -1008,13 +1079,13 @@ export class {hu_name} extends CommonBase {implementations}{{ converter = self.wasm_decoding_map[return_c_ty] return_statement = f"return {converter}(nativeResponseValue);" - return f"""\texport function {method_name}({method_argument_string}): {return_java_ty} {{ - if(!isWasmInitialized) {{ - throw new Error("initializeWasm() must be awaited first!"); - }} - const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string}); - {return_statement} + return f"""export function {method_name}({method_argument_string}): {return_java_ty} {{ + if(!isWasmInitialized) {{ + throw new Error("initializeWasm() must be awaited first!"); }} + const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string}); + {return_statement} +}} """ def map_function(self, argument_types, c_call_string, method_name, meth_n, return_type_info, struct_meth, default_constructor_args, takes_self, takes_self_as_ref, args_known, type_mapping_generator, doc_comment): out_java = "" @@ -1172,3 +1243,34 @@ export class {hu_name} extends CommonBase {implementations}{{ for struct in self.struct_file_suffixes: with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src: src.write(self.struct_file_suffixes[struct]) + + with open(self.outdir + "/bindings.mts", "a") as bindings: + bindings.write(""" + +js_invoke = function(obj_ptr: number, fn_id: number, arg1: number, arg2: number, arg3: number, arg4: number, arg5: number, arg6: number, arg7: number, arg8: number, arg9: number, arg10: number) { + const weak: WeakRef = js_objs[obj_ptr]; + if (weak == null || weak == undefined) { + console.error("Got function call on unknown/free'd JS object!"); + throw new Error("Got function call on unknown/free'd JS object!"); + } + const obj: object = weak.deref(); + if (obj == null || obj == undefined) { + console.error("Got function call on GC'd JS object!"); + throw new Error("Got function call on GC'd JS object!"); + } + var fn; +""") + bindings.write("\tswitch (fn_id) {\n") + for f in self.function_ptrs: + bindings.write(f"\t\tcase {str(f)}: fn = Object.getOwnPropertyDescriptor(obj, \"{self.function_ptrs[f][1]}\"); break;\n") + + bindings.write("""\t\tdefault: + console.error("Got unknown function call from C!"); + throw new Error("Got unknown function call from C!"); + } + if (fn == null || fn == undefined) { + console.error("Got function call on incorrect JS object!"); + throw new Error("Got function call on incorrect JS object!"); + } + return fn.value.bind(obj)(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10); +}""")