1 from bindingstypes import ConvInfo
4 def first_to_lower(string: str) -> str:
6 return first.lower() + string[1:]
14 def __init__(self, DEBUG: bool, target: Target, outdir: str, **kwargs):
16 self.struct_file_suffixes = {}
17 self.function_ptr_counter = 0
18 self.function_ptrs = {}
19 self.c_type_map = dict(
20 bool = ['boolean', 'boolean', 'XXX'],
21 uint8_t = ['number', 'number', 'Uint8Array'],
22 uint16_t = ['number', 'number', 'Uint16Array'],
23 uint32_t = ['number', 'number', 'Uint32Array'],
24 int64_t = ['bigint', 'bigint', 'BigInt64Array'],
25 uint64_t = ['bigint', 'bigint', 'BigUint64Array'],
26 double = ['number', 'number', 'Float64Array'],
28 self.java_type_map = dict(
31 self.java_hu_type_map = dict(
35 self.to_hu_conv_templates = dict(
36 ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
37 default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
40 self.bindings_header = """
41 import * as version from './version.mjs';
42 import { UInt5, WitnessVersion } from './structs/CommonBase.mjs';
44 const imports: any = {};
47 var js_objs: Array<WeakRef<object>> = [];
48 var js_invoke: Function;
49 var getRandomValues: Function;
51 imports.wasi_snapshot_preview1 = {
52 "fd_write": (fd: number, iovec_array_ptr: number, iovec_array_len: number, bytes_written_ptr: number) => {
53 // This should generally only be used to print panic messages
54 const ptr_len_view = new Uint32Array(wasm.memory.buffer, iovec_array_ptr, iovec_array_len * 2);
55 var bytes_written = 0;
56 for (var i = 0; i < iovec_array_len; i++) {
57 const bytes_view = new Uint8Array(wasm.memory.buffer, ptr_len_view[i*2], ptr_len_view[i*2+1]);
58 console.log("[fd " + fd + "]: " + String.fromCharCode(...bytes_view));
59 bytes_written += ptr_len_view[i*2+1]!;
61 const written_view = new Uint32Array(wasm.memory.buffer, bytes_written_ptr, 1);
62 written_view[0] = bytes_written;
65 "fd_close": (_fd: number) => {
66 // This is not generally called, but may be referenced in debug builds
67 console.log("wasi_snapshot_preview1:fd_close");
68 return 58; // Not Supported
70 "fd_seek": (_fd: number, _offset: bigint, _whence: number, _new_offset: number) => {
71 // This is not generally called, but may be referenced in debug builds
72 console.log("wasi_snapshot_preview1:fd_seek");
73 return 58; // Not Supported
75 "random_get": (buf_ptr: number, buf_len: number) => {
76 const buf = new Uint8Array(wasm.memory.buffer, buf_ptr, buf_len);
80 "environ_sizes_get": (environ_var_count_ptr: number, environ_len_ptr: number) => {
81 // This is called before fd_write to format + print panic messages
82 const out_count_view = new Uint32Array(wasm.memory.buffer, environ_var_count_ptr, 1);
83 out_count_view[0] = 0;
84 const out_len_view = new Uint32Array(wasm.memory.buffer, environ_len_ptr, 1);
88 "environ_get": (_environ_ptr: number, _environ_buf_ptr: number) => {
89 // This is called before fd_write to format + print panic messages,
90 // but only if we have variables in environ_sizes_get, so shouldn't ever actually happen!
91 console.log("wasi_snapshot_preview1:environ_get");
92 return 58; // Note supported - we said there were 0 environment entries!
95 console.log("wasi_snapshot_preview1:proc_exit");
100 let isWasmInitialized: boolean = false;
102 async function finishInitializeWasm(wasmInstance: WebAssembly.Instance) {
103 if (typeof crypto === "undefined") {
104 var crypto_import = (await import('crypto')).webcrypto;
105 getRandomValues = crypto_import.getRandomValues.bind(crypto_import);
107 getRandomValues = crypto.getRandomValues.bind(crypto);
110 wasm = wasmInstance.exports;
111 if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) {
112 throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint");
115 if (decodeString(wasm.TS_get_lib_version_string()) !== version.get_ldk_java_bindings_version())
116 throw new Error(\"Compiled LDK library and LDK class files do not match\");
117 // Fetching the LDK versions from C also checks that the header and binaries match
118 const c_bindings_ver: number = wasm.TS_get_ldk_c_bindings_version();
119 const ldk_ver: number = wasm.TS_get_ldk_version();
120 if (c_bindings_ver == 0)
121 throw new Error(\"LDK version did not match the header we built against\");
123 throw new Error(\"LDK C bindings version did not match the header we built against\");
124 const c_bindings_version: string = decodeString(c_bindings_ver)
125 const ldk_version: string = decodeString(ldk_ver);
126 console.log(\"Loaded LDK-Java Bindings with LDK \" + ldk_version + \" and LDK-C-Bindings \" + c_bindings_version);
128 isWasmInitialized = true;
131 const fn_list = ["uuuuuu", "buuuuu", "bbuuuu", "bbbuuu", "bbbbuu", "bbbbbu",
132 "bbbbbb", "ubuubu", "ubuuuu", "ubbuuu", "uubuuu", "uubbuu", "uububu", "ububuu"];
135 export async function initializeWasmFromUint8Array(wasmBinary: Uint8Array) {
136 for (const fn of fn_list) { imports.env["js_invoke_function_" + fn] = js_invoke; }
137 const { instance: wasmInstance } = await WebAssembly.instantiate(wasmBinary, imports);
138 await finishInitializeWasm(wasmInstance);
142 export async function initializeWasmFetch(uri: string) {
143 for (const fn of fn_list) { imports.env["js_invoke_function_" + fn] = js_invoke; }
144 const stream = fetch(uri);
145 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
146 await finishInitializeWasm(wasmInstance);
149 self.bindings_header += """
153 export function uint5ArrToBytes(inputArray: Array<UInt5>): Uint8Array {
154 const arr = new Uint8Array(inputArray.length);
155 for (var i = 0; i < inputArray.length; i++) {
156 arr[i] = inputArray[i]!.getVal();
162 export function WitnessVersionArrToBytes(inputArray: Array<WitnessVersion>): Uint8Array {
163 const arr = new Uint8Array(inputArray.length);
164 for (var i = 0; i < inputArray.length; i++) {
165 arr[i] = inputArray[i]!.getVal();
173 export function encodeUint128 (inputVal: bigint): number {
174 if (inputVal >= 0x10000000000000000000000000000000n) throw "U128s cannot exceed 128 bits";
175 const cArrayPointer = wasm.TS_malloc(16 + 8);
176 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
177 arrayLengthView[0] = BigInt(16);
178 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 8, 16);
179 for (var i = 0; i < 16; i++) arrayMemoryView[i] = Number((inputVal >> BigInt(i)*8n) & 0xffn);
180 return cArrayPointer;
183 export function encodeUint8Array (inputArray: Uint8Array|null): number {
184 if (inputArray == null) return 0;
185 const cArrayPointer = wasm.TS_malloc(inputArray.length + 8);
186 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
187 arrayLengthView[0] = BigInt(inputArray.length);
188 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
189 arrayMemoryView.set(inputArray);
190 return cArrayPointer;
193 export function encodeUint16Array (inputArray: Uint16Array|Array<number>|null): number {
194 if (inputArray == null) return 0;
195 const cArrayPointer = wasm.TS_malloc((inputArray.length + 4) * 2);
196 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
197 arrayLengthView[0] = BigInt(inputArray.length);
198 const arrayMemoryView = new Uint16Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
199 arrayMemoryView.set(inputArray);
200 return cArrayPointer;
203 export function encodeUint32Array (inputArray: Uint32Array|Array<number>|null): number {
204 if (inputArray == null) return 0;
205 const cArrayPointer = wasm.TS_malloc((inputArray.length + 2) * 4);
206 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
207 arrayLengthView[0] = BigInt(inputArray.length);
208 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
209 arrayMemoryView.set(inputArray);
210 return cArrayPointer;
213 export function encodeUint64Array (inputArray: BigUint64Array|Array<bigint>|null): number {
214 if (inputArray == null) return 0;
215 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 8);
216 const arrayMemoryView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, inputArray.length + 1);
217 arrayMemoryView[0] = BigInt(inputArray.length);
218 arrayMemoryView.set(inputArray, 1);
219 return cArrayPointer;
223 export function check_arr_len(arr: Uint8Array|null, len: number): Uint8Array|null {
224 if (arr !== null && arr.length != len) { throw new Error("Expected array of length " + len + " got " + arr.length); }
229 export function check_16_arr_len(arr: Uint16Array|null, len: number): Uint16Array|null {
230 if (arr !== null && arr.length != len) { throw new Error("Expected array of length " + len + " got " + arr.length); }
235 export function getArrayLength(arrayPointer: number): number {
236 const arraySizeViewer = new BigUint64Array(wasm.memory.buffer, arrayPointer, 1);
237 const len = arraySizeViewer[0]!;
238 if (len >= (2n ** 32n)) throw new Error("Bogus Array Size");
239 return Number(len % (2n ** 32n));
242 export function decodeUint128 (arrayPointer: number, free = true): bigint {
243 const arraySize = getArrayLength(arrayPointer);
244 if (arraySize != 16) throw "Need 16 bytes for a uint128";
245 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
247 for (var i = 0; i < 16; i++) {
249 val |= BigInt(actualArrayViewer[i]!);
252 wasm.TS_free(arrayPointer);
257 export function decodeUint8Array (arrayPointer: number, free = true): Uint8Array {
258 const arraySize = getArrayLength(arrayPointer);
259 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
260 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
261 // will free the underlying memory when it becomes unreachable instead of copying here.
262 // Note that doing so may have edge-case interactions with memory resizing (invalidating the buffer).
263 const actualArray = actualArrayViewer.slice(0, arraySize);
265 wasm.TS_free(arrayPointer);
270 export function decodeUint16Array (arrayPointer: number, free = true): Uint16Array {
271 const arraySize = getArrayLength(arrayPointer);
272 const actualArrayViewer = new Uint16Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
273 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
274 // will free the underlying memory when it becomes unreachable instead of copying here.
275 // Note that doing so may have edge-case interactions with memory resizing (invalidating the buffer).
276 const actualArray = actualArrayViewer.slice(0, arraySize);
278 wasm.TS_free(arrayPointer);
283 export function decodeUint64Array (arrayPointer: number, free = true): bigint[] {
284 const arraySize = getArrayLength(arrayPointer);
285 const actualArrayViewer = new BigUint64Array(
286 wasm.memory.buffer, // value
287 arrayPointer + 8, // offset (ignoring length bytes)
288 arraySize // uint32 count
290 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
291 // will free the underlying memory when it becomes unreachable instead of copying here.
292 const actualArray = new Array(arraySize);
293 for (var i = 0; i < arraySize; i++) actualArray[i] = actualArrayViewer[i];
295 wasm.TS_free(arrayPointer);
300 export function freeWasmMemory(pointer: number) { wasm.TS_free(pointer); }
303 export function getU64ArrayElem(arrayPointer: number, idx: number): bigint {
304 const actualArrayViewer = new BigUint64Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
305 return actualArrayViewer[idx]!;
309 export function getU32ArrayElem(arrayPointer: number, idx: number): number {
310 const actualArrayViewer = new Uint32Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
311 return actualArrayViewer[idx]!;
315 export function getU8ArrayElem(arrayPointer: number, idx: number): number {
316 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
317 return actualArrayViewer[idx]!;
322 export function encodeString(str: string): number {
323 const charArray = new TextEncoder().encode(str);
324 return encodeUint8Array(charArray);
328 export function decodeString(stringPointer: number, free = true): string {
329 const arraySize = getArrayLength(stringPointer);
330 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer + 8, arraySize);
331 const result = new TextDecoder("utf-8").decode(memoryView);
334 wasm.TS_free(stringPointer);
341 self.bindings_header += """
343 export function getRemainingAllocationCount(): number {
344 return wasm.TS_allocs_remaining();
347 export function debugPrintRemainingAllocs() {
348 wasm.TS_print_leaks();
352 self.bindings_header += "\n/* @internal */ export function getRemainingAllocationCount(): number { return 0; }\n"
353 self.bindings_header += "/* @internal */ export function debugPrintRemainingAllocs() { }\n"
355 with open(outdir + "/index.mts", 'a') as index:
356 index.write("""import { initializeWasmFetch, initializeWasmFromUint8Array } from './bindings.mjs';
357 /** Initializes the WASM backend by calling `fetch()` on the given URI - Browser only */
358 export async function initializeWasmWebFetch(uri: string) {
359 await initializeWasmFetch(uri);
361 /** Initializes the WASM backend given a Uint8Array of the .wasm binary file - Browser or Node.JS */
362 export async function initializeWasmFromBinary(bin: Uint8Array) {
363 await initializeWasmFromUint8Array(bin);
366 export * from './structs/UtilMethods.mjs';
369 self.bindings_version_file = """export function get_ldk_java_bindings_version(): String {
370 return "<git_version_ldk_garbagecollected>";
373 self.common_base = """
374 function freer(f: () => void) { f() }
375 const finalizer = new FinalizationRegistry(freer);
376 function get_freeer(ptr: bigint, free_fn: (ptr: bigint) => void) {
382 export class CommonBase {
383 protected ptr: bigint;
384 protected ptrs_to: object[] = [];
385 protected constructor(ptr: bigint, free_fn: (ptr: bigint) => void) {
388 finalizer.register(this, get_freeer(ptr, free_fn), this);
391 // In Java, protected means "any subclass can access fields on any other subclass'"
392 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
393 // To work around this, we add accessors for other instances' protected fields here.
394 protected static add_ref_from(holder: CommonBase|null, referent: object|null) {
395 if (holder !== null && referent !== null) { holder.ptrs_to.push(referent); }
397 protected static get_ptr_of(o: CommonBase) {
400 protected static set_null_skip_free(o: CommonBase) {
402 // @ts-ignore TypeScript is wrong about the returnvalue of unregister here!
403 const did_unregister: boolean = finalizer.unregister(o);
405 throw new Error("FinalizationRegistry unregister should always unregister unless you double-free'd");
410 public constructor(private val: number) {
411 if (val > 32 || val < 0) throw new Error("UInt5 value is out of range");
413 public getVal(): number {
418 export class WitnessVersion {
419 public constructor(private val: number) {
420 if (val > 16 || val < 0) throw new Error("WitnessVersion value is out of range");
422 public getVal(): number {
427 export class UnqualifiedError {
428 public constructor(_val: number) {}
432 self.txout_defn = """export class TxOut extends CommonBase {
433 /** The script_pubkey in this output */
434 public script_pubkey: Uint8Array;
435 /** The value, in satoshis, of this output */
436 public value: bigint;
439 public constructor(_dummy: null, ptr: bigint) {
440 super(ptr, bindings.TxOut_free);
441 this.script_pubkey = bindings.decodeUint8Array(bindings.TxOut_get_script_pubkey(ptr));
442 this.value = bindings.TxOut_get_value(ptr);
444 public static constructor_new(value: bigint, script_pubkey: Uint8Array): TxOut {
445 return new TxOut(null, bindings.TxOut_new(bindings.encodeUint8Array(script_pubkey), value));
448 self.obj_defined(["TxOut"], "structs")
450 self.txin_defn = """export class TxIn extends CommonBase {
451 /** The witness in this input, in serialized form */
452 public witness: Uint8Array;
453 /** The script_sig in this input */
454 public script_sig: Uint8Array;
455 /** The transaction output's sequence number */
456 public sequence: number;
457 /** The txid this input is spending */
458 public previous_txid: Uint8Array;
459 /** The output index within the spent transaction of the output this input is spending */
460 public previous_vout: number;
463 public constructor(_dummy: null, ptr: bigint) {
464 super(ptr, bindings.TxIn_free);
465 this.witness = bindings.decodeUint8Array(bindings.TxIn_get_witness(ptr));
466 this.script_sig = bindings.decodeUint8Array(bindings.TxIn_get_script_sig(ptr));
467 this.sequence = bindings.TxIn_get_sequence(ptr);
468 this.previous_txid = bindings.decodeUint8Array(bindings.TxIn_get_previous_txid(ptr));
469 this.previous_vout = bindings.TxIn_get_previous_vout(ptr);
471 public static constructor_new(witness: Uint8Array, script_sig: Uint8Array, sequence: number, previous_txid: Uint8Array, previous_vout: number): TxIn {
472 return new TxIn(null, bindings.TxIn_new(bindings.encodeUint8Array(witness), bindings.encodeUint8Array(script_sig), sequence, bindings.encodeUint8Array(previous_txid), previous_vout));
475 self.obj_defined(["TxIn"], "structs")
477 self.scalar_defn = """export class BigEndianScalar extends CommonBase {
478 /** The bytes of the scalar value, in big endian */
479 public scalar_bytes: Uint8Array;
482 public constructor(_dummy: null, ptr: bigint) {
483 super(ptr, bindings.BigEndianScalar_free);
484 this.scalar_bytes = bindings.decodeUint8Array(bindings.BigEndianScalar_get_bytes(ptr));
486 public static constructor_new(scalar_bytes: Uint8Array): BigEndianScalar {
487 return new BigEndianScalar(null, bindings.BigEndianScalar_new(bindings.encodeUint8Array(scalar_bytes)));
490 self.obj_defined(["BigEndianScalar"], "structs")
492 self.witness_program_defn = """export class WitnessProgram extends CommonBase {
493 /** The witness program bytes themselves */
494 public program: Uint8Array;
495 /** The witness program version */
496 public version: WitnessVersion;
499 public constructor(_dummy: null, ptr: bigint) {
500 super(ptr, bindings.WitnessProgram_free);
501 this.program = bindings.decodeUint8Array(bindings.WitnessProgram_get_program(ptr));
502 this.version = new WitnessVersion(bindings.WitnessProgram_get_version(ptr));
504 public static constructor_new(program: Uint8Array, version: WitnessVersion): WitnessProgram {
505 if (program.length < 2 || program.length > 40)
506 throw new Error("WitnessProgram must be between 2 and 40 bytes long");
507 if (version.getVal() == 0 && program.length != 20 && program.length != 32)
508 throw new Error("WitnessProgram for version 0 must be between either 20 or 30 bytes");
509 return new WitnessProgram(null, bindings.WitnessProgram_new(version.getVal(), bindings.encodeUint8Array(program)));
512 self.obj_defined(["WitnessProgram"], "structs")
514 self.c_file_pfx = """#include "js-wasm.h"
515 #include <stdatomic.h>
516 #include <lightning.h>
518 // These should be provided...somehow...
519 void *memset(void *s, int c, size_t n);
520 void *memcpy(void *dest, const void *src, size_t n);
521 int memcmp(const void *s1, const void *s2, size_t n);
523 extern void __attribute__((noreturn)) abort(void);
524 static inline void assert(bool expression) {
525 if (!expression) { abort(); }
528 uint32_t __attribute__((export_name("test_bigint_pass_deadbeef0badf00d"))) test_bigint_pass_deadbeef0badf00d(uint64_t val) {
529 return val == 0xdeadbeef0badf00dULL;
535 self.c_file_pfx += """
536 void *malloc(size_t size);
537 void free(void *ptr);
539 #define MALLOC(a, _) malloc(a)
540 #define do_MALLOC(a, _b, _c) malloc(a)
541 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
542 #define DO_ASSERT(a) (void)(a)
544 #define CHECK_ACCESS(p)
545 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
548 self.c_file_pfx += """
549 extern int snprintf(char *str, size_t size, const char *format, ...);
550 typedef int32_t ssize_t;
551 ssize_t write(int fd, const void *buf, size_t count);
552 #define DEBUG_PRINT(...) do { \\
553 char debug_str[1024]; \\
554 int s_len = snprintf(debug_str, 1023, __VA_ARGS__); \\
555 write(2, debug_str, s_len); \\
558 // Always run a, then assert it is true:
559 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
560 // Assert a is true or do nothing
561 #define CHECK(a) DO_ASSERT(a)
563 // Running a leak check across all the allocations and frees of the JDK is a mess,
564 // so instead we implement our own naive leak checker here, relying on the -wrap
565 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
566 // and free'd in Rust or C across the generated bindings shared library.
569 typedef struct allocation {
570 struct allocation* next;
572 const char* struct_name;
575 static allocation* allocation_ll = NULL;
576 static allocation* freed_ll = NULL;
578 extern void* __real_malloc(size_t len);
579 extern void* __real_calloc(size_t nmemb, size_t len);
580 extern void* __real_aligned_alloc(size_t alignment, size_t size);
581 static void new_allocation(void* res, const char* struct_name, int lineno) {
582 allocation* new_alloc = __real_malloc(sizeof(allocation));
583 new_alloc->ptr = res;
584 new_alloc->struct_name = struct_name;
585 new_alloc->next = allocation_ll;
586 new_alloc->lineno = lineno;
587 allocation_ll = new_alloc;
589 static void* do_MALLOC(size_t len, const char* struct_name, int lineno) {
590 void* res = __real_malloc(len);
591 new_allocation(res, struct_name, lineno);
594 #define MALLOC(len, struct_name) do_MALLOC(len, struct_name, __LINE__)
596 void __real_free(void* ptr);
597 static void alloc_freed(void* ptr, int lineno) {
598 allocation* p = NULL;
599 allocation* it = allocation_ll;
600 while (it->ptr != ptr) {
601 p = it; it = it->next;
605 while (it && it->ptr != ptr) { p = it; it = it->next; }
607 DEBUG_PRINT("Tried to free unknown pointer %p at line %d.\\n", ptr, lineno);
609 DEBUG_PRINT("Tried to free unknown pointer %p at line %d.\\n Possibly double-free from %s, allocated on line %d.", ptr, lineno, it->struct_name, it->lineno);
614 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
615 DO_ASSERT(it->ptr == ptr);
619 static void do_FREE(void* ptr, int lineno) {
620 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
621 alloc_freed(ptr, lineno);
624 #define FREE(ptr) do_FREE(ptr, __LINE__)
626 static void CHECK_ACCESS(const void* ptr) {
627 allocation* it = allocation_ll;
628 while (it->ptr != ptr) {
631 return; // addrsan should catch malloc-unknown and print more info than we have
635 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
636 if (v.is_owned && v.inner != NULL) { \\
637 const void *p = __unmangle_inner_ptr(v.inner); \\
643 void* __wrap_malloc(size_t len) {
644 void* res = __real_malloc(len);
645 new_allocation(res, "malloc call", 0);
648 void* __wrap_calloc(size_t nmemb, size_t len) {
649 void* res = __real_calloc(nmemb, len);
650 new_allocation(res, "calloc call", 0);
653 void* __wrap_aligned_alloc(size_t alignment, size_t size) {
654 void* res = __real_aligned_alloc(alignment, size);
655 new_allocation(res, "aligned_alloc call", 0);
658 void __wrap_free(void* ptr) {
659 if (ptr == NULL) return;
664 void* __real_realloc(void* ptr, size_t newlen);
665 void* __wrap_realloc(void* ptr, size_t len) {
666 if (ptr != NULL) alloc_freed(ptr, 0);
667 void* res = __real_realloc(ptr, len);
668 new_allocation(res, "realloc call", 0);
671 void __wrap_reallocarray(void* ptr, size_t new_sz) {
672 // Rust doesn't seem to use reallocarray currently
676 uint32_t __attribute__((export_name("TS_allocs_remaining"))) allocs_remaining() {
678 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
683 void __attribute__((export_name("TS_print_leaks"))) print_leaks() {
684 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
685 DEBUG_PRINT("%s %p remains. Allocated on line %d\\n", a->struct_name, a->ptr, a->lineno);
689 self.c_file_pfx = self.c_file_pfx + """
690 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
691 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
692 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
693 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
695 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
697 #define DECL_ARR_TYPE(ty, name) \\
698 struct name##array { \\
699 uint64_t arr_len; /* uint32_t would suffice but we want to align uint64_ts as well */ \\
702 typedef struct name##array * name##Array; \\
703 static inline name##Array init_##name##Array(size_t arr_len, int lineno) { \\
704 name##Array arr = (name##Array)do_MALLOC(arr_len * sizeof(ty) + sizeof(uint64_t), #name" array init", lineno); \\
705 arr->arr_len = arr_len; \\
709 DECL_ARR_TYPE(int64_t, int64_t);
710 DECL_ARR_TYPE(uint64_t, uint64_t);
711 DECL_ARR_TYPE(int8_t, int8_t);
712 DECL_ARR_TYPE(int16_t, int16_t);
713 DECL_ARR_TYPE(uint32_t, uint32_t);
714 DECL_ARR_TYPE(void*, ptr);
715 DECL_ARR_TYPE(char, char);
716 typedef charArray jstring;
718 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
719 charArray arr = init_charArray(len, __LINE__);
720 memcpy(arr->elems, chars, len);
723 static inline LDKStr str_ref_to_owned_c(const jstring str) {
724 char* newchars = MALLOC(str->arr_len + 1, "String chars");
725 memcpy(newchars, str->elems, str->arr_len);
726 newchars[str->arr_len] = 0;
730 .chars_is_owned = true
735 typedef bool jboolean;
737 uint32_t __attribute__((export_name("TS_malloc"))) TS_malloc(uint32_t size) {
738 return (uint32_t)MALLOC(size, "JS-Called malloc");
740 void __attribute__((export_name("TS_free"))) TS_free(uint32_t ptr) {
744 jstring __attribute__((export_name("TS_get_ldk_c_bindings_version"))) TS_get_ldk_c_bindings_version() {
745 const char *res = check_get_ldk_bindings_version();
746 if (res == NULL) return NULL;
747 return str_ref_to_ts(res, strlen(res));
749 jstring __attribute__((export_name("TS_get_ldk_version"))) get_ldk_version() {
750 const char *res = check_get_ldk_version();
751 if (res == NULL) return NULL;
752 return str_ref_to_ts(res, strlen(res));
757 self.c_version_file = """jstring __attribute__((export_name("TS_get_lib_version_string"))) TS_get_lib_version_string() {
758 return str_ref_to_ts("<git_version_ldk_garbagecollected>", strlen("<git_version_ldk_garbagecollected>"));
761 self.hu_struct_file_prefix = """
762 import { CommonBase, UInt5, WitnessVersion, UnqualifiedError } from './CommonBase.mjs';
763 import * as bindings from '../bindings.mjs'
766 self.hu_struct_file_suffix = ""
767 self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n"
768 self.util_fn_sfx = "}"
769 self.c_fn_ty_pfx = ""
770 self.file_ext = ".mts"
771 self.ptr_c_ty = "uint64_t"
772 self.ptr_native_ty = "bigint"
773 self.u128_native_ty = "bigint"
774 self.usize_c_ty = "uint32_t"
775 self.usize_native_ty = "number"
776 self.native_zero_ptr = "0n"
777 self.unitary_enum_c_ty = "uint32_t"
778 self.ptr_arr = "ptrArray"
779 self.is_arr_some_check = ("", " != 0")
780 self.get_native_arr_len_call = ("", "->arr_len")
782 def bindings_footer(self):
785 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
787 def create_native_arr_call(self, arr_len, ty_info):
788 if ty_info.c_ty == "ptrArray":
789 assert ty_info.rust_obj == "LDKCVec_U5Z" or (ty_info.subty is not None and (ty_info.subty.c_ty.endswith("Array") or ty_info.subty.rust_obj == "LDKStr"))
790 return "init_" + ty_info.c_ty + "(" + arr_len + ", __LINE__)"
791 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
792 if ty_info.c_ty == "int8_tArray":
793 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
794 elif ty_info.c_ty == "int16_tArray":
795 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + " * 2)")
798 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
799 if ty_info.c_ty == "int8_tArray" or ty_info.c_ty == "int16_tArray":
802 if ty_info.c_ty == "int16_tArray":
803 byte_len = arr_len + " * 2"
804 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + byte_len + "); FREE(" + arr_name + ")"
806 if ty_info.c_ty == "ptrArray":
807 return "(void*) " + arr_name + "->elems"
809 return arr_name + "->elems"
810 def get_native_arr_elem(self, arr_name, idxc, ty_info):
811 assert False # Only called if above is None
812 def get_native_arr_ptr_call(self, ty_info):
813 if ty_info.subty is not None:
814 return "(" + ty_info.subty.c_ty + "*)(((uint8_t*)", ") + 8)"
815 return "(" + ty_info.c_ty + "*)(((uint8_t*)", ") + 8)"
816 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
818 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
819 if ty_info.c_ty == "int8_tArray":
820 return "FREE(" + arr_name + ");"
822 return "FREE(" + arr_name + ")"
824 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty, is_nullable):
825 if elem_ty.rust_obj == "LDKU5":
826 return arr_name + " != null ? bindings.uint5ArrToBytes(" + arr_name + ") : null"
827 assert elem_ty.c_ty == "uint64_t" or elem_ty.c_ty.endswith("Array") or elem_ty.rust_obj == "LDKStr"
829 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
831 return arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ")"
833 def str_ref_to_native_call(self, var_name, str_len):
834 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
835 def str_ref_to_c_call(self, var_name):
836 return "str_ref_to_owned_c(" + var_name + ")"
837 def str_to_hu_conv(self, var_name):
838 return "const " + var_name + "_conv: string = bindings.decodeString(" + var_name + ");"
839 def str_from_hu_conv(self, var_name):
840 return ("bindings.encodeString(" + var_name + ")", "")
842 def c_fn_name_define_pfx(self, fn_name, have_args):
843 return " __attribute__((export_name(\"TS_" + fn_name + "\"))) TS_" + fn_name + "("
848 def get_java_arr_len(self, arr_name):
849 return "bindings.getArrayLength(" + arr_name + ")"
850 def get_java_arr_elem(self, elem_ty, arr_name, idx):
851 if elem_ty.c_ty.endswith("Array") or elem_ty.c_ty == "uintptr_t":
852 return "bindings.getU32ArrayElem(" + arr_name + ", " + idx + ")"
853 elif elem_ty.c_ty == "uint64_t":
854 return "bindings.getU64ArrayElem(" + arr_name + ", " + idx + ")"
855 elif elem_ty.rust_obj == "LDKU5":
856 return "bindings.getU8ArrayElem(" + arr_name + ", " + idx + ")"
857 elif elem_ty.rust_obj == "LDKStr":
858 return "bindings.getU32ArrayElem(" + arr_name + ", " + idx + ")"
861 def constr_hu_array(self, ty_info, arr_len):
862 return "new Array(" + arr_len + ").fill(null)"
863 def cleanup_converted_native_array(self, ty_info, arr_name):
864 return "bindings.freeWasmMemory(" + arr_name + ")"
866 def primitive_arr_from_hu(self, arr_ty, fixed_len, arr_name):
867 mapped_ty = arr_ty.subty
869 if arr_ty.rust_obj == "LDKU128":
870 return ("bindings.encodeUint128(" + inner + ")", "")
871 if fixed_len is not None:
872 if mapped_ty.c_ty == "int8_t":
873 inner = "bindings.check_arr_len(" + arr_name + ", " + fixed_len + ")"
874 elif mapped_ty.c_ty == "int16_t":
875 inner = "bindings.check_16_arr_len(" + arr_name + ", " + fixed_len + ")"
876 if mapped_ty.c_ty.endswith("Array"):
877 return ("bindings.encodeUint32Array(" + inner + ")", "")
878 elif mapped_ty.c_ty == "uint8_t" or mapped_ty.c_ty == "int8_t":
879 return ("bindings.encodeUint8Array(" + inner + ")", "")
880 elif mapped_ty.c_ty == "uint16_t" or mapped_ty.c_ty == "int16_t":
881 return ("bindings.encodeUint16Array(" + inner + ")", "")
882 elif mapped_ty.c_ty == "uint32_t" or mapped_ty.rust_obj == "LDKStr":
883 return ("bindings.encodeUint32Array(" + inner + ")", "")
884 elif mapped_ty.c_ty == "int64_t" or mapped_ty.c_ty == "uint64_t":
885 return ("bindings.encodeUint64Array(" + inner + ")", "")
887 print(mapped_ty.c_ty)
890 def primitive_arr_to_hu(self, arr_ty, fixed_len, arr_name, conv_name):
891 mapped_ty = arr_ty.subty
892 if arr_ty.rust_obj == "LDKU128":
893 return "const " + conv_name + ": bigint = bindings.decodeUint128(" + arr_name + ");"
894 elif mapped_ty.c_ty == "uint8_t" or mapped_ty.c_ty == "int8_t":
895 return "const " + conv_name + ": Uint8Array = bindings.decodeUint8Array(" + arr_name + ");"
896 elif mapped_ty.c_ty == "uint16_t" or mapped_ty.c_ty == "int16_t":
897 return "const " + conv_name + ": Uint16Array = bindings.decodeUint16Array(" + arr_name + ");"
898 elif mapped_ty.c_ty == "uint64_t" or mapped_ty.c_ty == "int64_t":
899 return "const " + conv_name + ": bigint[] = bindings.decodeUint64Array(" + arr_name + ");"
903 def var_decl_statement(self, ty_string, var_name, statement):
904 return "const " + var_name + ": " + ty_string + " = " + statement
906 def java_arr_ty_str(self, elem_ty_str):
909 def for_n_in_range(self, n, minimum, maximum):
910 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
911 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
912 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
914 def get_ptr(self, var):
915 return "CommonBase.get_ptr_of(" + var + ")"
916 def set_null_skip_free(self, var):
917 return "CommonBase.set_null_skip_free(" + var + ");"
919 def add_ref(self, holder, referent):
920 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
922 def obj_defined(self, struct_names, folder):
923 with open(self.outdir + "/index.mts", 'a') as index:
924 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
925 with open(self.outdir + "/imports.mts.part", 'a') as imports:
926 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
928 def fully_qualified_hu_ty_path(self, ty):
931 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
932 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
933 out_c = out_c + "\tswitch (ord) {\n"
936 out_typescript_enum_fields = ""
938 for var, var_docs in variants:
939 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
941 if var_docs is not None:
942 var_docs_repld = var_docs.replace("\n", "\n\t")
943 out_typescript_enum_fields += f"/**\n\t * {var_docs_repld}\n\t */\n"
944 out_typescript_enum_fields += f"\t{var},\n\t"
945 out_c = out_c + "\t}\n"
946 out_c = out_c + "\tabort();\n"
947 out_c = out_c + "}\n"
949 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
950 out_c = out_c + "\tswitch (val) {\n"
952 for var, _ in variants:
953 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
955 out_c = out_c + "\t\tdefault: abort();\n"
956 out_c = out_c + "\t}\n"
957 out_c = out_c + "}\n"
959 # Note that this is *not* marked /* @internal */ as we re-expose it directly in enums/
960 enum_comment_formatted = enum_doc_comment.replace("\n", "\n * ")
961 out_typescript = f"""
963 * {enum_comment_formatted}
965 export enum {struct_name} {{
966 {out_typescript_enum_fields}
969 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
970 self.obj_defined([struct_name], "enums")
971 return (out_c, out_typescript_enum, out_typescript)
973 def c_unitary_enum_to_native_call(self, ty_info):
974 return (ty_info.rust_obj + "_to_js(", ")")
975 def native_unitary_enum_to_c_call(self, ty_info):
976 return (ty_info.rust_obj + "_from_js(", ")")
978 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
979 out_typescript_bindings = ""
980 super_instantiator = ""
981 bindings_instantiator = ""
982 pointer_to_adder = ""
983 impl_constructor_arguments = ""
984 for var in flattened_field_var_conversions:
985 if isinstance(var, ConvInfo):
986 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
987 if var.from_hu_conv is not None:
988 bindings_instantiator += ", " + var.from_hu_conv[0]
989 if var.from_hu_conv[1] != "":
990 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
992 bindings_instantiator += ", " + first_to_lower(var.arg_name)
994 bindings_instantiator += ", " + first_to_lower(var[1]) + ".instance_idx!"
995 pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
996 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface"
998 super_constructor_statements = ""
999 trait_constructor_arguments = ""
1000 for var in field_var_conversions:
1001 if isinstance(var, ConvInfo):
1002 trait_constructor_arguments += ", " + var.arg_name
1004 super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + first_to_lower(var[1]) + "_impl"
1005 super_instantiator = ""
1006 for suparg in var[2]:
1007 if isinstance(suparg, ConvInfo):
1008 super_instantiator += ", " + suparg.arg_name
1010 super_instantiator += ", " + first_to_lower(suparg[1]) + "_impl"
1011 super_constructor_statements += super_instantiator + ");\n"
1012 trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".instance_idx!"
1013 for suparg in var[2]:
1014 if isinstance(suparg, ConvInfo):
1015 trait_constructor_arguments += ", " + suparg.arg_name
1017 # Blindly assume that we can just strip the first arg to build the args for the supertrait
1018 super_constructor_statements += "\t\tconst " + first_to_lower(suparg[1]) + " = " + suparg[1] + ".new_impl(" + super_instantiator.split(", ", 1)[1] + ");\n"
1019 trait_constructor_arguments += ", " + suparg[1]
1021 # BUILD INTERFACE METHODS
1022 out_java_interface = ""
1023 out_interface_implementation_overrides = ""
1025 for fn_line in field_function_lines:
1026 java_method_descriptor = ""
1027 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1028 out_java_interface += "\t/**" + fn_line.docs.replace("\n", "\n\t * ") + "\n\t */\n"
1029 out_java_interface += "\t" + fn_line.fn_name + "("
1030 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
1032 for idx, arg_conv_info in enumerate(fn_line.args_ty):
1034 out_java_interface += ", "
1035 out_interface_implementation_overrides += ", "
1036 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
1037 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1038 java_method_descriptor += arg_conv_info.java_fn_ty_arg
1039 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
1040 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
1041 java_methods.append((fn_line.fn_name, java_method_descriptor))
1043 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
1045 for arg_info in fn_line.args_ty:
1046 if arg_info.to_hu_conv is not None:
1047 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
1049 if fn_line.ret_ty_info.java_ty != "void":
1050 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
1052 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
1054 for idx, arg_info in enumerate(fn_line.args_ty):
1056 out_interface_implementation_overrides += ", "
1057 if arg_info.to_hu_conv_name is not None:
1058 out_interface_implementation_overrides += arg_info.to_hu_conv_name
1060 out_interface_implementation_overrides += arg_info.arg_name
1062 out_interface_implementation_overrides += ");\n"
1063 if fn_line.ret_ty_info.java_ty != "void":
1064 if fn_line.ret_ty_info.from_hu_conv is not None:
1065 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"
1066 if fn_line.ret_ty_info.from_hu_conv[1] != "":
1067 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"
1068 #if fn_line.ret_ty_info.rust_obj in result_types:
1069 # XXX: We need to handle this in conversion logic so that its cross-language!
1070 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
1071 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
1072 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
1074 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
1075 out_interface_implementation_overrides += f"\t\t\t}},\n"
1077 formatted_trait_docs = trait_doc_comment.replace("\n", "\n * ")
1078 out_typescript_human = f"""
1079 {self.hu_struct_file_prefix}
1081 /** An implementation of {struct_name.replace("LDK","")} */
1082 export interface {struct_name.replace("LDK", "")}Interface {{
1083 {out_java_interface}}}
1085 class {struct_name}Holder {{
1086 held: {struct_name.replace("LDK", "")}|null = null;
1090 * {formatted_trait_docs}
1092 export class {struct_name.replace("LDK","")} extends CommonBase {{
1094 public bindings_instance: bindings.{struct_name}|null;
1097 public instance_idx?: number;
1100 constructor(_dummy: null, ptr: bigint) {{
1101 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1102 this.bindings_instance = null;
1105 /** Creates a new instance of {struct_name.replace("LDK","")} from a given implementation */
1106 public static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
1107 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
1108 let structImplementation = {{
1109 {out_interface_implementation_overrides} }} as bindings.{struct_name};
1110 {super_constructor_statements} const ptr_idx: [bigint, number] = bindings.{struct_name}_new(structImplementation{bindings_instantiator});
1112 impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr_idx[0]);
1113 impl_holder.held.instance_idx = ptr_idx[1];
1114 impl_holder.held.bindings_instance = structImplementation;
1115 {pointer_to_adder} return impl_holder.held!;
1119 self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs")
1121 out_typescript_bindings += "/* @internal */\nexport interface " + struct_name + " {\n"
1123 for fn_line in field_function_lines:
1124 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1125 out_typescript_bindings += f"\t{fn_line.fn_name} ("
1127 for idx, arg_conv_info in enumerate(fn_line.args_ty):
1129 out_typescript_bindings = out_typescript_bindings + ", "
1130 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1132 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
1134 out_typescript_bindings += "}\n\n"
1136 c_call_extra_args = ""
1137 out_typescript_bindings += f"/* @internal */\nexport function {struct_name}_new(impl: {struct_name}"
1138 for var in flattened_field_var_conversions:
1139 if isinstance(var, ConvInfo):
1140 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
1141 c_call_extra_args += f", {var.arg_name}"
1143 out_typescript_bindings += f", {var[1]}: number"
1144 c_call_extra_args += f", {var[1]}"
1147 out_typescript_bindings += f"""): [bigint, number] {{
1148 if(!isWasmInitialized) {{
1149 throw new Error("initializeWasm() must be awaited first!");
1151 var new_obj_idx = js_objs.length;
1152 for (var i = 0; i < js_objs.length; i++) {{
1153 if (js_objs[i] == null || js_objs[i] == undefined) {{ new_obj_idx = i; break; }}
1155 js_objs[i] = new WeakRef(impl);
1156 return [wasm.TS_{struct_name}_new(i{c_call_extra_args}), i];
1160 # Now that we've written out our java code (and created java_meths), generate C
1161 out_c = "typedef struct " + struct_name + "_JCalls {\n"
1162 out_c += "\tatomic_size_t refcnt;\n"
1163 out_c += "\tuint32_t instance_ptr;\n"
1164 for var in flattened_field_var_conversions:
1165 if isinstance(var, ConvInfo):
1166 # We're a regular ol' field
1169 # We're a supertrait
1170 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
1171 out_c = out_c + "} " + struct_name + "_JCalls;\n"
1173 for fn_line in field_function_lines:
1174 if fn_line.fn_name == "free":
1175 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
1176 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
1177 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
1178 out_c = out_c + "\t\tFREE(j_calls);\n"
1179 out_c = out_c + "\t}\n}\n"
1181 for idx, fn_line in enumerate(field_function_lines):
1182 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1183 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
1184 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
1185 if fn_line.self_is_const:
1186 out_c = out_c + "const void* this_arg"
1188 out_c = out_c + "void* this_arg"
1190 for idx, arg in enumerate(fn_line.args_ty):
1191 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
1193 out_c = out_c + ") {\n"
1194 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
1196 for arg_info in fn_line.args_ty:
1197 if arg_info.ret_conv is not None:
1198 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
1199 out_c = out_c + arg_info.arg_name
1200 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
1203 assert len(fn_line.args_ty) < 7
1204 for arg_info in fn_line.args_ty:
1205 if arg_info.c_ty == "uint64_t" or arg_info.c_ty == "int64_t":
1209 for i in range(0, 6 - len(fn_line.args_ty)):
1211 if fn_line.ret_ty_info.c_ty.endswith("Array"):
1212 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
1213 out_c += "js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1214 elif fn_line.ret_ty_info.java_ty == "void":
1215 out_c = out_c + "\tjs_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1216 elif fn_line.ret_ty_info.java_hu_ty == "string":
1217 out_c += "\tjstring ret = (jstring)js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1218 elif fn_line.ret_ty_info.arg_conv is None:
1219 out_c += "\treturn js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1221 out_c += "\tuint64_t ret = js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1223 self.function_ptrs[self.function_ptr_counter] = (struct_name, fn_line.fn_name)
1224 self.function_ptr_counter += 1
1226 for idx, arg_info in enumerate(fn_line.args_ty):
1227 if arg_info.ret_conv is not None:
1228 if arg_info.c_ty.endswith("Array"):
1229 out_c += ", (uint32_t)" + arg_info.ret_conv_name
1231 out_c += ", " + arg_info.ret_conv_name
1233 assert False # TODO: Would we need some conversion here?
1234 out_c += ", (uint32_t)" + arg_info.arg_name
1235 for i in range(0, 6 - len(fn_line.args_ty)):
1237 out_c = out_c + ");\n"
1238 if fn_line.ret_ty_info.arg_conv is not None:
1239 out_c = out_c + "\t" + fn_line.ret_ty_info.arg_conv.replace("\n", "\n\t") + "\n\treturn " + fn_line.ret_ty_info.arg_conv_name + ";\n"
1241 out_c = out_c + "}\n"
1243 # Write out a clone function whether we need one or not, as we use them in moving to rust
1244 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
1245 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
1246 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
1247 for var in flattened_field_var_conversions:
1248 if not isinstance(var, ConvInfo):
1249 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[2].replace(".", "->") + "->refcnt, 1, memory_order_release);\n"
1250 out_c = out_c + "}\n"
1252 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (JSValue o"
1253 for var in flattened_field_var_conversions:
1254 if isinstance(var, ConvInfo):
1255 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
1257 out_c = out_c + ", JSValue " + var[1]
1258 out_c = out_c + ") {\n"
1260 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
1261 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
1262 out_c = out_c + "\tcalls->instance_ptr = o;\n"
1264 for (fn_name, java_meth_descr) in java_meths:
1265 if fn_name != "free" and fn_name != "cloned":
1266 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
1267 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
1269 for var in flattened_field_var_conversions:
1270 if isinstance(var, ConvInfo) and var.arg_conv is not None:
1271 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
1272 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
1273 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
1274 for fn_line in field_function_lines:
1275 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1276 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
1277 elif fn_line.fn_name == "free":
1278 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
1280 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
1281 for var in field_var_conversions:
1282 if isinstance(var, ConvInfo):
1283 if var.arg_conv_name is not None:
1284 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
1285 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
1287 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
1288 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
1290 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
1291 for suparg in var[2]:
1292 if isinstance(suparg, ConvInfo):
1293 out_c += ", " + suparg.arg_name
1295 out_c += ", " + suparg[1]
1297 out_c = out_c + "\t};\n"
1298 for var in flattened_field_var_conversions:
1299 if not isinstance(var, ConvInfo):
1300 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[2] + ".this_arg;\n"
1301 out_c = out_c + "\treturn ret;\n"
1302 out_c = out_c + "}\n"
1304 out_c = out_c + self.c_fn_ty_pfx + "uint64_t " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "JSValue o"
1305 for var in flattened_field_var_conversions:
1306 if isinstance(var, ConvInfo):
1307 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
1309 out_c = out_c + ", JSValue " + var[1]
1310 out_c = out_c + ") {\n"
1311 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
1312 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
1313 for var in flattened_field_var_conversions:
1314 if isinstance(var, ConvInfo):
1315 out_c = out_c + ", " + var.arg_name
1317 out_c = out_c + ", " + var[1]
1318 out_c = out_c + ");\n"
1319 out_c = out_c + "\treturn tag_ptr(res_ptr, true);\n"
1320 out_c = out_c + "}\n"
1322 return (out_typescript_bindings, out_typescript_human, out_c)
1324 def trait_struct_inc_refcnt(self, ty_info):
1325 base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
1326 base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
1327 base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_cloned(&" + ty_info.var_name + "_conv);\n}"
1330 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
1331 bindings_type = struct_name.replace("LDK", "")
1332 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
1338 out_java_enum += (self.hu_struct_file_prefix)
1340 java_hu_class = "/**\n * " + enum_doc_comment.replace("\n", "\n * ") + "\n */\n"
1341 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
1342 java_hu_class += "\tprotected constructor(_dummy: null, ptr: bigint) { super(ptr, bindings." + bindings_type + "_free); }\n"
1343 java_hu_class += "\t/* @internal */\n"
1344 java_hu_class += f"\tpublic static constr_from_ptr(ptr: bigint): {java_hu_type} {{\n"
1345 java_hu_class += f"\t\tconst raw_ty: number = bindings." + struct_name + "_ty_from_ptr(ptr);\n"
1346 out_c += self.c_fn_ty_pfx + "uint32_t" + self.c_fn_name_define_pfx(struct_name + "_ty_from_ptr", True) + self.ptr_c_ty + " ptr) {\n"
1347 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
1348 out_c += "\tswitch(obj->tag) {\n"
1349 java_hu_class += "\t\tswitch (raw_ty) {\n"
1350 java_hu_subclasses = ""
1352 out_java += "/* @internal */\nexport class " + struct_name + " {\n"
1353 out_java += "\tprotected constructor() {}\n"
1355 for var in variant_list:
1356 java_hu_subclasses += "/** A " + java_hu_type + " of type " + var.var_name + " */\n"
1357 java_hu_subclasses += "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
1358 java_hu_class += f"\t\t\tcase {var_idx}: "
1359 java_hu_class += "return new " + java_hu_type + "_" + var.var_name + "(ptr);\n"
1360 out_c += f"\t\tcase {struct_name}_{var.var_name}: return {var_idx};\n"
1362 for idx, (field_ty, field_docs) in enumerate(var.fields):
1363 if field_docs is not None:
1364 java_hu_subclasses += "\t/**\n\t * " + field_docs.replace("\n", "\n\t * ") + "\n\t */\n"
1365 java_hu_subclasses += "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
1366 if field_ty.to_hu_conv is not None:
1367 hu_conv_body += f"\t\tconst {field_ty.arg_name}: {field_ty.java_ty} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
1368 hu_conv_body += f"\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
1369 hu_conv_body += f"\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
1371 hu_conv_body += f"\t\tthis.{field_ty.arg_name} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
1372 java_hu_subclasses += "\t/* @internal */\n"
1373 java_hu_subclasses += "\tpublic constructor(ptr: bigint) {\n\t\tsuper(null, ptr);\n"
1374 java_hu_subclasses = java_hu_subclasses + hu_conv_body
1375 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
1378 java_hu_class += "\t\t\tdefault:\n\t\t\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t\t}\n\t}\n\n"
1379 out_java += self.fn_call_body(struct_name + "_ty_from_ptr", "uint32_t", "number", "ptr: bigint", "ptr")
1380 out_c += ("\t\tdefault: abort();\n")
1381 out_c += ("\t}\n}\n")
1383 for var in variant_list:
1384 for idx, (field_map, _) in enumerate(var.fields):
1385 fn_name = f"{struct_name}_{var.var_name}_get_{field_map.arg_name}"
1386 out_c += self.c_fn_ty_pfx + field_map.c_ty + self.c_fn_name_define_pfx(fn_name, True) + self.ptr_c_ty + " ptr) {\n"
1387 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
1388 out_c += f"\tassert(obj->tag == {struct_name}_{var.var_name});\n"
1389 if field_map.ret_conv is not None:
1390 out_c += ("\t" + field_map.ret_conv[0].replace("\n", "\n\t"))
1391 if var.tuple_variant:
1392 out_c += "obj->" + camel_to_snake(var.var_name)
1394 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
1395 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
1396 out_c += "\treturn " + field_map.ret_conv_name + ";\n"
1398 if var.tuple_variant:
1399 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + ";\n"
1401 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name + ";\n"
1403 out_java += self.fn_call_body(fn_name, field_map.c_ty, field_map.java_ty, "ptr: bigint", "ptr")
1404 out_java_enum += java_hu_class
1405 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1406 self.obj_defined([java_hu_type], "structs")
1407 return (out_java, out_java_enum, out_c)
1409 def map_opaque_struct(self, struct_name, struct_doc_comment):
1412 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1413 out_opaque_struct_human = f"{self.hu_struct_file_prefix}"
1414 constructor_body = "super(ptr, bindings." + struct_name.replace("LDK","") + "_free);"
1417 if struct_name.startswith("LDKLocked") or struct_name.startswith("LDKReadOnly"):
1418 extra_docs = "\n * This type represents a lock and MUST BE MANUALLY FREE'd!"
1419 constructor_body = 'super(ptr, () => { throw new Error("Locks must be manually freed with free()"); });'
1421 /** Releases this lock */
1423 bindings.{struct_name.replace("LDK","")}_free(this.ptr);
1424 CommonBase.set_null_skip_free(this);
1426 formatted_doc_comment = struct_doc_comment.replace("\n", "\n * ")
1427 out_opaque_struct_human += f"""
1429 * {formatted_doc_comment}
1431 export class {hu_name} extends CommonBase {{
1433 public constructor(_dummy: null, ptr: bigint) {{
1438 self.obj_defined([hu_name], "structs")
1439 return out_opaque_struct_human
1441 def map_tuple(self, struct_name):
1442 return self.map_opaque_struct(struct_name, "A Tuple")
1444 def map_result(self, struct_name, res_map, err_map):
1445 human_ty = struct_name.replace("LDKCResult", "Result")
1447 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1448 if res_map.java_hu_ty != "void":
1449 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1452 public constructor(_dummy: null, ptr: bigint) {{
1455 if res_map.java_hu_ty == "void":
1457 elif res_map.to_hu_conv is not None:
1458 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1459 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1460 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1462 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1463 suffixes += "\t}\n}\n"
1465 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1466 if err_map.java_hu_ty != "void":
1467 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1470 public constructor(_dummy: null, ptr: bigint) {{
1473 if err_map.java_hu_ty == "void":
1475 elif err_map.to_hu_conv is not None:
1476 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1477 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1478 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1480 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1481 suffixes += "\t}\n}"
1483 self.struct_file_suffixes[human_ty] = suffixes
1484 self.obj_defined([human_ty], "structs")
1486 return f"""{self.hu_struct_file_prefix}
1488 export class {human_ty} extends CommonBase {{
1489 protected constructor(_dummy: null, ptr: bigint) {{
1490 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1493 public static constr_from_ptr(ptr: bigint): {human_ty} {{
1494 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1495 return new {human_ty}_OK(null, ptr);
1497 return new {human_ty}_Err(null, ptr);
1502 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1503 has_return_value = return_c_ty != 'void'
1504 return_statement = 'return nativeResponseValue;'
1505 if not has_return_value:
1506 return_statement = '// debug statements here'
1508 return f"""/* @internal */
1509 export function {method_name}({method_argument_string}): {return_java_ty} {{
1510 if(!isWasmInitialized) {{
1511 throw new Error("initializeWasm() must be awaited first!");
1513 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1517 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):
1520 out_java_struct = None
1523 out_c += (self.c_fn_ty_pfx)
1524 out_c += (return_type_info.c_ty)
1525 out_java += (return_type_info.java_ty)
1526 if return_type_info.ret_conv is not None:
1527 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1528 out_java += (" " + method_name + "(")
1529 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1531 method_argument_string = ""
1532 native_call_argument_string = ""
1533 for idx, arg_conv_info in enumerate(argument_types):
1535 method_argument_string += (", ")
1536 native_call_argument_string += ', '
1538 if arg_conv_info.c_ty != "void":
1539 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1540 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1541 native_call_argument_string += arg_conv_info.arg_name
1542 out_java = self.fn_call_body(method_name, return_type_info.c_ty, return_type_info.java_ty, method_argument_string, native_call_argument_string)
1544 out_java_struct = ""
1545 if doc_comment is not None:
1546 out_java_struct = "\t/**\n\t * " + doc_comment.replace("\n", "\n\t * ") + "\n\t */\n"
1549 out_java_struct += ("\t// Skipped " + method_name + "\n")
1552 out_java_struct += (
1553 "\tpublic static constructor_" + meth_n + "(")
1555 out_java_struct += ("\tpublic " + meth_n + "(")
1556 for idx, arg in enumerate(argument_types):
1558 if not takes_self or idx > 1:
1559 out_java_struct += (", ")
1562 if arg.java_ty != "void":
1563 if arg.arg_name in default_constructor_args:
1564 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1565 if explode_idx != 0:
1566 out_java_struct += (", ")
1567 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1569 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1571 out_java_struct += "|null"
1574 if out_java_struct is not None:
1575 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1576 for info in argument_types:
1577 if info.arg_conv is not None:
1578 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1579 if return_type_info.ret_conv is not None:
1580 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1581 elif return_type_info.c_ty != "void":
1582 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1585 if c_call_string is None:
1586 out_c += (method_name + "(")
1588 out_c += (c_call_string)
1589 for idx, info in enumerate(argument_types):
1590 if info.arg_conv_name is not None:
1593 elif c_call_string is not None:
1595 out_c += (info.arg_conv_name)
1597 if return_type_info.ret_conv is not None:
1598 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1601 for info in argument_types:
1602 if info.arg_conv_cleanup is not None:
1603 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1604 if return_type_info.ret_conv is not None:
1605 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1606 elif return_type_info.c_ty != "void":
1607 out_c += ("\n\treturn ret_val;")
1608 out_c += ("\n}\n\n")
1611 out_java_struct += ("\t\t")
1612 if return_type_info.java_ty != "void":
1613 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1614 out_java_struct += ("bindings." + method_name + "(")
1615 for idx, info in enumerate(argument_types):
1617 out_java_struct += (", ")
1618 if idx == 0 and takes_self:
1619 out_java_struct += ("this.ptr")
1620 elif info.arg_name in default_constructor_args:
1621 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1622 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1623 if explode_idx != 0:
1624 out_java_struct += (", ")
1625 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1626 if explode_arg.from_hu_conv is not None:
1627 out_java_struct += (
1628 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1630 out_java_struct += (expl_arg_name)
1631 out_java_struct += (")")
1632 elif info.from_hu_conv is not None:
1633 out_java_struct += (info.from_hu_conv[0])
1635 out_java_struct += (info.arg_name)
1636 out_java_struct += (");\n")
1637 if return_type_info.to_hu_conv is not None:
1639 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1640 return_type_info.to_hu_conv_name) + "\n")
1642 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1644 for idx, info in enumerate(argument_types):
1645 if idx == 0 and takes_self:
1647 elif info.arg_name in default_constructor_args:
1648 for explode_arg in default_constructor_args[info.arg_name]:
1649 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1650 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1651 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1652 expl_arg_name).replace(
1653 "this", return_type_info.to_hu_conv_name) + ";\n")
1654 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1655 if not takes_self and return_type_info.to_hu_conv_name is not None:
1656 out_java_struct += (
1657 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1659 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1661 if return_type_info.to_hu_conv_name is not None:
1662 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1663 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1664 out_java_struct += ("\t\treturn ret;\n")
1665 out_java_struct += ("\t}\n\n")
1667 return (out_java, out_c, out_java_struct)
1670 for struct in self.struct_file_suffixes:
1671 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1672 src.write(self.struct_file_suffixes[struct])
1674 with open(self.outdir + "/bindings.mts", "a") as bindings:
1677 js_invoke = function(obj_ptr: number, fn_id: number, arg1: bigint|number, arg2: bigint|number, arg3: bigint|number, arg4: bigint|number, arg5: bigint|number, arg6: bigint|number, arg7: bigint|number, arg8: bigint|number, arg9: bigint|number, arg10: bigint|number) {
1678 const weak: WeakRef<object>|undefined = js_objs[obj_ptr];
1679 if (weak == null || weak == undefined) {
1680 console.error("Got function call on unknown/free'd JS object!");
1681 throw new Error("Got function call on unknown/free'd JS object!");
1683 const obj = weak.deref();
1684 if (obj == null || obj == undefined) {
1685 console.error("Got function call on GC'd JS object!");
1686 throw new Error("Got function call on GC'd JS object!");
1690 bindings.write("\tswitch (fn_id) {\n")
1691 for f in self.function_ptrs:
1692 bindings.write(f"\t\tcase {str(f)}: fn = Object.getOwnPropertyDescriptor(obj, \"{self.function_ptrs[f][1]}\"); break;\n")
1694 bindings.write("""\t\tdefault:
1695 console.error("Got unknown function call with id " + fn_id + " from C!");
1696 throw new Error("Got unknown function call with id " + fn_id + " from C!");
1698 if (fn == null || fn == undefined) {
1699 console.error("Got function call with id " + fn_id + " on incorrect JS object: " + obj);
1700 throw new Error("Got function call with id " + fn_id + " on incorrect JS object: " + obj);
1704 ret = fn.value.bind(obj)(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
1706 console.error("Got an exception calling function with id " + fn_id + "! This is fatal.");
1710 if (ret === undefined || ret === null) return BigInt(0);