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'],
27 self.java_type_map = dict(
30 self.java_hu_type_map = dict(
34 self.to_hu_conv_templates = dict(
35 ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
36 default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
39 self.bindings_header = """
40 import * as version from './version.mjs';
41 import { UInt5, WitnessVersion } from './structs/CommonBase.mjs';
43 const imports: any = {};
46 var js_objs: Array<WeakRef<object>> = [];
47 var js_invoke: Function;
48 var getRandomValues: Function;
50 imports.wasi_snapshot_preview1 = {
51 "fd_write": (fd: number, iovec_array_ptr: number, iovec_array_len: number, bytes_written_ptr: number) => {
52 // This should generally only be used to print panic messages
53 const ptr_len_view = new Uint32Array(wasm.memory.buffer, iovec_array_ptr, iovec_array_len * 2);
54 var bytes_written = 0;
55 for (var i = 0; i < iovec_array_len; i++) {
56 const bytes_view = new Uint8Array(wasm.memory.buffer, ptr_len_view[i*2], ptr_len_view[i*2+1]);
57 console.log("[fd " + fd + "]: " + String.fromCharCode(...bytes_view));
58 bytes_written += ptr_len_view[i*2+1]!;
60 const written_view = new Uint32Array(wasm.memory.buffer, bytes_written_ptr, 1);
61 written_view[0] = bytes_written;
64 "fd_close": (_fd: number) => {
65 // This is not generally called, but may be referenced in debug builds
66 console.log("wasi_snapshot_preview1:fd_close");
67 return 58; // Not Supported
69 "fd_seek": (_fd: number, _offset: bigint, _whence: number, _new_offset: number) => {
70 // This is not generally called, but may be referenced in debug builds
71 console.log("wasi_snapshot_preview1:fd_seek");
72 return 58; // Not Supported
74 "random_get": (buf_ptr: number, buf_len: number) => {
75 const buf = new Uint8Array(wasm.memory.buffer, buf_ptr, buf_len);
79 "environ_sizes_get": (environ_var_count_ptr: number, environ_len_ptr: number) => {
80 // This is called before fd_write to format + print panic messages
81 const out_count_view = new Uint32Array(wasm.memory.buffer, environ_var_count_ptr, 1);
82 out_count_view[0] = 0;
83 const out_len_view = new Uint32Array(wasm.memory.buffer, environ_len_ptr, 1);
87 "environ_get": (_environ_ptr: number, _environ_buf_ptr: number) => {
88 // This is called before fd_write to format + print panic messages,
89 // but only if we have variables in environ_sizes_get, so shouldn't ever actually happen!
90 console.log("wasi_snapshot_preview1:environ_get");
91 return 58; // Note supported - we said there were 0 environment entries!
94 console.log("wasi_snapshot_preview1:proc_exit");
99 let isWasmInitialized: boolean = false;
101 async function finishInitializeWasm(wasmInstance: WebAssembly.Instance) {
102 if (typeof crypto === "undefined") {
103 var crypto_import = (await import('crypto')).webcrypto;
104 getRandomValues = crypto_import.getRandomValues.bind(crypto_import);
106 getRandomValues = crypto.getRandomValues.bind(crypto);
109 wasm = wasmInstance.exports;
110 if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) {
111 throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint");
114 if (decodeString(wasm.TS_get_lib_version_string()) !== version.get_ldk_java_bindings_version())
115 throw new Error(\"Compiled LDK library and LDK class files do not match\");
116 // Fetching the LDK versions from C also checks that the header and binaries match
117 const c_bindings_ver: number = wasm.TS_get_ldk_c_bindings_version();
118 const ldk_ver: number = wasm.TS_get_ldk_version();
119 if (c_bindings_ver == 0)
120 throw new Error(\"LDK version did not match the header we built against\");
122 throw new Error(\"LDK C bindings version did not match the header we built against\");
123 const c_bindings_version: string = decodeString(c_bindings_ver)
124 const ldk_version: string = decodeString(ldk_ver);
125 console.log(\"Loaded LDK-Java Bindings with LDK \" + ldk_version + \" and LDK-C-Bindings \" + c_bindings_version);
127 isWasmInitialized = true;
130 const fn_list = ["uuuuuu", "buuuuu", "bbuuuu", "bbbuuu", "bbbbuu", "bbbbbu",
131 "bbbbbb", "ubuubu", "ubuuuu", "ubbuuu", "uubuuu", "uububu", "ububuu"];
134 export async function initializeWasmFromUint8Array(wasmBinary: Uint8Array) {
135 for (const fn of fn_list) { imports.env["js_invoke_function_" + fn] = js_invoke; }
136 const { instance: wasmInstance } = await WebAssembly.instantiate(wasmBinary, imports);
137 await finishInitializeWasm(wasmInstance);
141 export async function initializeWasmFetch(uri: string) {
142 for (const fn of fn_list) { imports.env["js_invoke_function_" + fn] = js_invoke; }
143 const stream = fetch(uri);
144 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
145 await finishInitializeWasm(wasmInstance);
148 self.bindings_header += """
152 export function uint5ArrToBytes(inputArray: Array<UInt5>): Uint8Array {
153 const arr = new Uint8Array(inputArray.length);
154 for (var i = 0; i < inputArray.length; i++) {
155 arr[i] = inputArray[i]!.getVal();
161 export function WitnessVersionArrToBytes(inputArray: Array<WitnessVersion>): Uint8Array {
162 const arr = new Uint8Array(inputArray.length);
163 for (var i = 0; i < inputArray.length; i++) {
164 arr[i] = inputArray[i]!.getVal();
172 export function encodeUint128 (inputVal: bigint): number {
173 if (inputVal >= 0x10000000000000000000000000000000n) throw "U128s cannot exceed 128 bits";
174 const cArrayPointer = wasm.TS_malloc(16 + 8);
175 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
176 arrayLengthView[0] = BigInt(16);
177 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 8, 16);
178 for (var i = 0; i < 16; i++) arrayMemoryView[i] = Number((inputVal >> BigInt(i)*8n) & 0xffn);
179 return cArrayPointer;
182 export function encodeUint8Array (inputArray: Uint8Array|null): number {
183 if (inputArray == null) return 0;
184 const cArrayPointer = wasm.TS_malloc(inputArray.length + 8);
185 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
186 arrayLengthView[0] = BigInt(inputArray.length);
187 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
188 arrayMemoryView.set(inputArray);
189 return cArrayPointer;
192 export function encodeUint16Array (inputArray: Uint16Array|Array<number>|null): number {
193 if (inputArray == null) return 0;
194 const cArrayPointer = wasm.TS_malloc((inputArray.length + 4) * 2);
195 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
196 arrayLengthView[0] = BigInt(inputArray.length);
197 const arrayMemoryView = new Uint16Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
198 arrayMemoryView.set(inputArray);
199 return cArrayPointer;
202 export function encodeUint32Array (inputArray: Uint32Array|Array<number>|null): number {
203 if (inputArray == null) return 0;
204 const cArrayPointer = wasm.TS_malloc((inputArray.length + 2) * 4);
205 const arrayLengthView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, 1);
206 arrayLengthView[0] = BigInt(inputArray.length);
207 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer + 8, inputArray.length);
208 arrayMemoryView.set(inputArray);
209 return cArrayPointer;
212 export function encodeUint64Array (inputArray: BigUint64Array|Array<bigint>|null): number {
213 if (inputArray == null) return 0;
214 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 8);
215 const arrayMemoryView = new BigUint64Array(wasm.memory.buffer, cArrayPointer, inputArray.length + 1);
216 arrayMemoryView[0] = BigInt(inputArray.length);
217 arrayMemoryView.set(inputArray, 1);
218 return cArrayPointer;
222 export function check_arr_len(arr: Uint8Array|null, len: number): Uint8Array|null {
223 if (arr !== null && arr.length != len) { throw new Error("Expected array of length " + len + " got " + arr.length); }
228 export function check_16_arr_len(arr: Uint16Array|null, len: number): Uint16Array|null {
229 if (arr !== null && arr.length != len) { throw new Error("Expected array of length " + len + " got " + arr.length); }
234 export function getArrayLength(arrayPointer: number): number {
235 const arraySizeViewer = new BigUint64Array(wasm.memory.buffer, arrayPointer, 1);
236 const len = arraySizeViewer[0]!;
237 if (len >= (2n ** 32n)) throw new Error("Bogus Array Size");
238 return Number(len % (2n ** 32n));
241 export function decodeUint128 (arrayPointer: number, free = true): bigint {
242 const arraySize = getArrayLength(arrayPointer);
243 if (arraySize != 16) throw "Need 16 bytes for a uint128";
244 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
246 for (var i = 0; i < 16; i++) {
248 val |= BigInt(actualArrayViewer[i]!);
251 wasm.TS_free(arrayPointer);
256 export function decodeUint8Array (arrayPointer: number, free = true): Uint8Array {
257 const arraySize = getArrayLength(arrayPointer);
258 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
259 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
260 // will free the underlying memory when it becomes unreachable instead of copying here.
261 // Note that doing so may have edge-case interactions with memory resizing (invalidating the buffer).
262 const actualArray = actualArrayViewer.slice(0, arraySize);
264 wasm.TS_free(arrayPointer);
269 export function decodeUint16Array (arrayPointer: number, free = true): Uint16Array {
270 const arraySize = getArrayLength(arrayPointer);
271 const actualArrayViewer = new Uint16Array(wasm.memory.buffer, arrayPointer + 8, arraySize);
272 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
273 // will free the underlying memory when it becomes unreachable instead of copying here.
274 // Note that doing so may have edge-case interactions with memory resizing (invalidating the buffer).
275 const actualArray = actualArrayViewer.slice(0, arraySize);
277 wasm.TS_free(arrayPointer);
282 export function decodeUint64Array (arrayPointer: number, free = true): bigint[] {
283 const arraySize = getArrayLength(arrayPointer);
284 const actualArrayViewer = new BigUint64Array(
285 wasm.memory.buffer, // value
286 arrayPointer + 8, // offset (ignoring length bytes)
287 arraySize // uint32 count
289 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
290 // will free the underlying memory when it becomes unreachable instead of copying here.
291 const actualArray = new Array(arraySize);
292 for (var i = 0; i < arraySize; i++) actualArray[i] = actualArrayViewer[i];
294 wasm.TS_free(arrayPointer);
299 export function freeWasmMemory(pointer: number) { wasm.TS_free(pointer); }
302 export function getU64ArrayElem(arrayPointer: number, idx: number): bigint {
303 const actualArrayViewer = new BigUint64Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
304 return actualArrayViewer[idx]!;
308 export function getU32ArrayElem(arrayPointer: number, idx: number): number {
309 const actualArrayViewer = new Uint32Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
310 return actualArrayViewer[idx]!;
314 export function getU8ArrayElem(arrayPointer: number, idx: number): number {
315 const actualArrayViewer = new Uint8Array(wasm.memory.buffer, arrayPointer + 8, idx + 1);
316 return actualArrayViewer[idx]!;
321 export function encodeString(str: string): number {
322 const charArray = new TextEncoder().encode(str);
323 return encodeUint8Array(charArray);
327 export function decodeString(stringPointer: number, free = true): string {
328 const arraySize = getArrayLength(stringPointer);
329 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer + 8, arraySize);
330 const result = new TextDecoder("utf-8").decode(memoryView);
333 wasm.TS_free(stringPointer);
340 self.bindings_header += """
342 export function getRemainingAllocationCount(): number {
343 return wasm.TS_allocs_remaining();
346 export function debugPrintRemainingAllocs() {
347 wasm.TS_print_leaks();
351 self.bindings_header += "\n/* @internal */ export function getRemainingAllocationCount(): number { return 0; }\n"
352 self.bindings_header += "/* @internal */ export function debugPrintRemainingAllocs() { }\n"
354 with open(outdir + "/index.mts", 'a') as index:
355 index.write("""import { initializeWasmFetch, initializeWasmFromUint8Array } from './bindings.mjs';
356 /** Initializes the WASM backend by calling `fetch()` on the given URI - Browser only */
357 export async function initializeWasmWebFetch(uri: string) {
358 await initializeWasmFetch(uri);
360 /** Initializes the WASM backend given a Uint8Array of the .wasm binary file - Browser or Node.JS */
361 export async function initializeWasmFromBinary(bin: Uint8Array) {
362 await initializeWasmFromUint8Array(bin);
365 export * from './structs/UtilMethods.mjs';
368 self.bindings_version_file = """export function get_ldk_java_bindings_version(): String {
369 return "<git_version_ldk_garbagecollected>";
372 self.common_base = """
373 function freer(f: () => void) { f() }
374 const finalizer = new FinalizationRegistry(freer);
375 function get_freeer(ptr: bigint, free_fn: (ptr: bigint) => void) {
381 export class CommonBase {
382 protected ptr: bigint;
383 protected ptrs_to: object[] = [];
384 protected constructor(ptr: bigint, free_fn: (ptr: bigint) => void) {
387 finalizer.register(this, get_freeer(ptr, free_fn), this);
390 // In Java, protected means "any subclass can access fields on any other subclass'"
391 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
392 // To work around this, we add accessors for other instances' protected fields here.
393 protected static add_ref_from(holder: CommonBase|null, referent: object|null) {
394 if (holder !== null && referent !== null) { holder.ptrs_to.push(referent); }
396 protected static get_ptr_of(o: CommonBase) {
399 protected static set_null_skip_free(o: CommonBase) {
401 // @ts-ignore TypeScript is wrong about the returnvalue of unregister here!
402 const did_unregister: boolean = finalizer.unregister(o);
404 throw new Error("FinalizationRegistry unregister should always unregister unless you double-free'd");
409 public constructor(private val: number) {
410 if (val > 32 || val < 0) throw new Error("UInt5 value is out of range");
412 public getVal(): number {
417 export class WitnessVersion {
418 public constructor(private val: number) {
419 if (val > 16 || val < 0) throw new Error("WitnessVersion value is out of range");
421 public getVal(): number {
426 export class UnqualifiedError {
427 public constructor(_val: number) {}
431 self.txout_defn = """export class TxOut extends CommonBase {
432 /** The script_pubkey in this output */
433 public script_pubkey: Uint8Array;
434 /** The value, in satoshis, of this output */
435 public value: bigint;
438 public constructor(_dummy: null, ptr: bigint) {
439 super(ptr, bindings.TxOut_free);
440 this.script_pubkey = bindings.decodeUint8Array(bindings.TxOut_get_script_pubkey(ptr));
441 this.value = bindings.TxOut_get_value(ptr);
443 public static constructor_new(value: bigint, script_pubkey: Uint8Array): TxOut {
444 return new TxOut(null, bindings.TxOut_new(bindings.encodeUint8Array(script_pubkey), value));
447 self.obj_defined(["TxOut"], "structs")
449 self.txin_defn = """export class TxIn extends CommonBase {
450 /** The witness in this input, in serialized form */
451 public witness: Uint8Array;
452 /** The script_sig in this input */
453 public script_sig: Uint8Array;
454 /** The transaction output's sequence number */
455 public sequence: number;
456 /** The txid this input is spending */
457 public previous_txid: Uint8Array;
458 /** The output index within the spent transaction of the output this input is spending */
459 public previous_vout: number;
462 public constructor(_dummy: null, ptr: bigint) {
463 super(ptr, bindings.TxIn_free);
464 this.witness = bindings.decodeUint8Array(bindings.TxIn_get_witness(ptr));
465 this.script_sig = bindings.decodeUint8Array(bindings.TxIn_get_script_sig(ptr));
466 this.sequence = bindings.TxIn_get_sequence(ptr);
467 this.previous_txid = bindings.decodeUint8Array(bindings.TxIn_get_previous_txid(ptr));
468 this.previous_vout = bindings.TxIn_get_previous_vout(ptr);
470 public static constructor_new(witness: Uint8Array, script_sig: Uint8Array, sequence: number, previous_txid: Uint8Array, previous_vout: number): TxIn {
471 return new TxIn(null, bindings.TxIn_new(bindings.encodeUint8Array(witness), bindings.encodeUint8Array(script_sig), sequence, bindings.encodeUint8Array(previous_txid), previous_vout));
474 self.obj_defined(["TxIn"], "structs")
476 self.scalar_defn = """export class BigEndianScalar extends CommonBase {
477 /** The bytes of the scalar value, in big endian */
478 public scalar_bytes: Uint8Array;
481 public constructor(_dummy: null, ptr: bigint) {
482 super(ptr, bindings.BigEndianScalar_free);
483 this.scalar_bytes = bindings.decodeUint8Array(bindings.BigEndianScalar_get_bytes(ptr));
485 public static constructor_new(scalar_bytes: Uint8Array): BigEndianScalar {
486 return new BigEndianScalar(null, bindings.BigEndianScalar_new(bindings.encodeUint8Array(scalar_bytes)));
489 self.obj_defined(["BigEndianScalar"], "structs")
491 self.c_file_pfx = """#include "js-wasm.h"
492 #include <stdatomic.h>
493 #include <lightning.h>
495 // These should be provided...somehow...
496 void *memset(void *s, int c, size_t n);
497 void *memcpy(void *dest, const void *src, size_t n);
498 int memcmp(const void *s1, const void *s2, size_t n);
500 extern void __attribute__((noreturn)) abort(void);
501 static inline void assert(bool expression) {
502 if (!expression) { abort(); }
505 uint32_t __attribute__((export_name("test_bigint_pass_deadbeef0badf00d"))) test_bigint_pass_deadbeef0badf00d(uint64_t val) {
506 return val == 0xdeadbeef0badf00dULL;
512 self.c_file_pfx += """
513 void *malloc(size_t size);
514 void free(void *ptr);
516 #define MALLOC(a, _) malloc(a)
517 #define do_MALLOC(a, _b, _c) malloc(a)
518 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
519 #define DO_ASSERT(a) (void)(a)
521 #define CHECK_ACCESS(p)
522 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
525 self.c_file_pfx += """
526 extern int snprintf(char *str, size_t size, const char *format, ...);
527 typedef int32_t ssize_t;
528 ssize_t write(int fd, const void *buf, size_t count);
529 #define DEBUG_PRINT(...) do { \\
530 char debug_str[1024]; \\
531 int s_len = snprintf(debug_str, 1023, __VA_ARGS__); \\
532 write(2, debug_str, s_len); \\
535 // Always run a, then assert it is true:
536 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
537 // Assert a is true or do nothing
538 #define CHECK(a) DO_ASSERT(a)
540 // Running a leak check across all the allocations and frees of the JDK is a mess,
541 // so instead we implement our own naive leak checker here, relying on the -wrap
542 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
543 // and free'd in Rust or C across the generated bindings shared library.
546 typedef struct allocation {
547 struct allocation* next;
549 const char* struct_name;
552 static allocation* allocation_ll = NULL;
553 static allocation* freed_ll = NULL;
555 extern void* __real_malloc(size_t len);
556 extern void* __real_calloc(size_t nmemb, size_t len);
557 extern void* __real_aligned_alloc(size_t alignment, size_t size);
558 static void new_allocation(void* res, const char* struct_name, int lineno) {
559 allocation* new_alloc = __real_malloc(sizeof(allocation));
560 new_alloc->ptr = res;
561 new_alloc->struct_name = struct_name;
562 new_alloc->next = allocation_ll;
563 new_alloc->lineno = lineno;
564 allocation_ll = new_alloc;
566 static void* do_MALLOC(size_t len, const char* struct_name, int lineno) {
567 void* res = __real_malloc(len);
568 new_allocation(res, struct_name, lineno);
571 #define MALLOC(len, struct_name) do_MALLOC(len, struct_name, __LINE__)
573 void __real_free(void* ptr);
574 static void alloc_freed(void* ptr, int lineno) {
575 allocation* p = NULL;
576 allocation* it = allocation_ll;
577 while (it->ptr != ptr) {
578 p = it; it = it->next;
582 while (it && it->ptr != ptr) { p = it; it = it->next; }
584 DEBUG_PRINT("Tried to free unknown pointer %p at line %d.\\n", ptr, lineno);
586 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);
591 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
592 DO_ASSERT(it->ptr == ptr);
596 static void do_FREE(void* ptr, int lineno) {
597 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
598 alloc_freed(ptr, lineno);
601 #define FREE(ptr) do_FREE(ptr, __LINE__)
603 static void CHECK_ACCESS(const void* ptr) {
604 allocation* it = allocation_ll;
605 while (it->ptr != ptr) {
608 return; // addrsan should catch malloc-unknown and print more info than we have
612 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
613 if (v.is_owned && v.inner != NULL) { \\
614 const void *p = __unmangle_inner_ptr(v.inner); \\
620 void* __wrap_malloc(size_t len) {
621 void* res = __real_malloc(len);
622 new_allocation(res, "malloc call", 0);
625 void* __wrap_calloc(size_t nmemb, size_t len) {
626 void* res = __real_calloc(nmemb, len);
627 new_allocation(res, "calloc call", 0);
630 void* __wrap_aligned_alloc(size_t alignment, size_t size) {
631 void* res = __real_aligned_alloc(alignment, size);
632 new_allocation(res, "aligned_alloc call", 0);
635 void __wrap_free(void* ptr) {
636 if (ptr == NULL) return;
641 void* __real_realloc(void* ptr, size_t newlen);
642 void* __wrap_realloc(void* ptr, size_t len) {
643 if (ptr != NULL) alloc_freed(ptr, 0);
644 void* res = __real_realloc(ptr, len);
645 new_allocation(res, "realloc call", 0);
648 void __wrap_reallocarray(void* ptr, size_t new_sz) {
649 // Rust doesn't seem to use reallocarray currently
653 uint32_t __attribute__((export_name("TS_allocs_remaining"))) allocs_remaining() {
655 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
660 void __attribute__((export_name("TS_print_leaks"))) print_leaks() {
661 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
662 DEBUG_PRINT("%s %p remains. Allocated on line %d\\n", a->struct_name, a->ptr, a->lineno);
666 self.c_file_pfx = self.c_file_pfx + """
667 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
668 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
669 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
670 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
672 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
674 #define DECL_ARR_TYPE(ty, name) \\
675 struct name##array { \\
676 uint64_t arr_len; /* uint32_t would suffice but we want to align uint64_ts as well */ \\
679 typedef struct name##array * name##Array; \\
680 static inline name##Array init_##name##Array(size_t arr_len, int lineno) { \\
681 name##Array arr = (name##Array)do_MALLOC(arr_len * sizeof(ty) + sizeof(uint64_t), #name" array init", lineno); \\
682 arr->arr_len = arr_len; \\
686 DECL_ARR_TYPE(int64_t, int64_t);
687 DECL_ARR_TYPE(uint64_t, uint64_t);
688 DECL_ARR_TYPE(int8_t, int8_t);
689 DECL_ARR_TYPE(int16_t, int16_t);
690 DECL_ARR_TYPE(uint32_t, uint32_t);
691 DECL_ARR_TYPE(void*, ptr);
692 DECL_ARR_TYPE(char, char);
693 typedef charArray jstring;
695 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
696 charArray arr = init_charArray(len, __LINE__);
697 memcpy(arr->elems, chars, len);
700 static inline LDKStr str_ref_to_owned_c(const jstring str) {
701 char* newchars = MALLOC(str->arr_len + 1, "String chars");
702 memcpy(newchars, str->elems, str->arr_len);
703 newchars[str->arr_len] = 0;
707 .chars_is_owned = true
712 typedef bool jboolean;
714 uint32_t __attribute__((export_name("TS_malloc"))) TS_malloc(uint32_t size) {
715 return (uint32_t)MALLOC(size, "JS-Called malloc");
717 void __attribute__((export_name("TS_free"))) TS_free(uint32_t ptr) {
721 jstring __attribute__((export_name("TS_get_ldk_c_bindings_version"))) TS_get_ldk_c_bindings_version() {
722 const char *res = check_get_ldk_bindings_version();
723 if (res == NULL) return NULL;
724 return str_ref_to_ts(res, strlen(res));
726 jstring __attribute__((export_name("TS_get_ldk_version"))) get_ldk_version() {
727 const char *res = check_get_ldk_version();
728 if (res == NULL) return NULL;
729 return str_ref_to_ts(res, strlen(res));
734 self.c_version_file = """jstring __attribute__((export_name("TS_get_lib_version_string"))) TS_get_lib_version_string() {
735 return str_ref_to_ts("<git_version_ldk_garbagecollected>", strlen("<git_version_ldk_garbagecollected>"));
738 self.hu_struct_file_prefix = """
739 import { CommonBase, UInt5, WitnessVersion, UnqualifiedError } from './CommonBase.mjs';
740 import * as bindings from '../bindings.mjs'
743 self.hu_struct_file_suffix = ""
744 self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n"
745 self.util_fn_sfx = "}"
746 self.c_fn_ty_pfx = ""
747 self.file_ext = ".mts"
748 self.ptr_c_ty = "uint64_t"
749 self.ptr_native_ty = "bigint"
750 self.u128_native_ty = "bigint"
751 self.usize_c_ty = "uint32_t"
752 self.usize_native_ty = "number"
753 self.native_zero_ptr = "0n"
754 self.result_c_ty = "uint32_t"
755 self.ptr_arr = "ptrArray"
756 self.is_arr_some_check = ("", " != 0")
757 self.get_native_arr_len_call = ("", "->arr_len")
759 def bindings_footer(self):
762 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
764 def create_native_arr_call(self, arr_len, ty_info):
765 if ty_info.c_ty == "ptrArray":
766 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"))
767 return "init_" + ty_info.c_ty + "(" + arr_len + ", __LINE__)"
768 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
769 if ty_info.c_ty == "int8_tArray":
770 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
771 elif ty_info.c_ty == "int16_tArray":
772 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + " * 2)")
775 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
776 if ty_info.c_ty == "int8_tArray" or ty_info.c_ty == "int16_tArray":
779 if ty_info.c_ty == "int16_tArray":
780 byte_len = arr_len + " * 2"
781 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + byte_len + "); FREE(" + arr_name + ")"
783 if ty_info.c_ty == "ptrArray":
784 return "(void*) " + arr_name + "->elems"
786 return arr_name + "->elems"
787 def get_native_arr_elem(self, arr_name, idxc, ty_info):
788 assert False # Only called if above is None
789 def get_native_arr_ptr_call(self, ty_info):
790 if ty_info.subty is not None:
791 return "(" + ty_info.subty.c_ty + "*)(((uint8_t*)", ") + 8)"
792 return "(" + ty_info.c_ty + "*)(((uint8_t*)", ") + 8)"
793 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
795 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
796 if ty_info.c_ty == "int8_tArray":
797 return "FREE(" + arr_name + ");"
799 return "FREE(" + arr_name + ")"
801 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
802 if elem_ty.rust_obj == "LDKU5":
803 return arr_name + " != null ? bindings.uint5ArrToBytes(" + arr_name + ") : null"
804 assert elem_ty.c_ty == "uint64_t" or elem_ty.c_ty.endswith("Array") or elem_ty.rust_obj == "LDKStr"
805 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
807 def str_ref_to_native_call(self, var_name, str_len):
808 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
809 def str_ref_to_c_call(self, var_name):
810 return "str_ref_to_owned_c(" + var_name + ")"
811 def str_to_hu_conv(self, var_name):
812 return "const " + var_name + "_conv: string = bindings.decodeString(" + var_name + ");"
813 def str_from_hu_conv(self, var_name):
814 return ("bindings.encodeString(" + var_name + ")", "")
816 def c_fn_name_define_pfx(self, fn_name, have_args):
817 return " __attribute__((export_name(\"TS_" + fn_name + "\"))) TS_" + fn_name + "("
822 def get_java_arr_len(self, arr_name):
823 return "bindings.getArrayLength(" + arr_name + ")"
824 def get_java_arr_elem(self, elem_ty, arr_name, idx):
825 if elem_ty.c_ty.endswith("Array") or elem_ty.c_ty == "uintptr_t":
826 return "bindings.getU32ArrayElem(" + arr_name + ", " + idx + ")"
827 elif elem_ty.c_ty == "uint64_t":
828 return "bindings.getU64ArrayElem(" + arr_name + ", " + idx + ")"
829 elif elem_ty.rust_obj == "LDKU5":
830 return "bindings.getU8ArrayElem(" + arr_name + ", " + idx + ")"
831 elif elem_ty.rust_obj == "LDKStr":
832 return "bindings.getU32ArrayElem(" + arr_name + ", " + idx + ")"
835 def constr_hu_array(self, ty_info, arr_len):
836 return "new Array(" + arr_len + ").fill(null)"
837 def cleanup_converted_native_array(self, ty_info, arr_name):
838 return "bindings.freeWasmMemory(" + arr_name + ")"
840 def primitive_arr_from_hu(self, arr_ty, fixed_len, arr_name):
841 mapped_ty = arr_ty.subty
843 if arr_ty.rust_obj == "LDKU128":
844 return ("bindings.encodeUint128(" + inner + ")", "")
845 if fixed_len is not None:
846 if mapped_ty.c_ty == "int8_t":
847 inner = "bindings.check_arr_len(" + arr_name + ", " + fixed_len + ")"
848 elif mapped_ty.c_ty == "int16_t":
849 inner = "bindings.check_16_arr_len(" + arr_name + ", " + fixed_len + ")"
850 if mapped_ty.c_ty.endswith("Array"):
851 return ("bindings.encodeUint32Array(" + inner + ")", "")
852 elif mapped_ty.c_ty == "uint8_t" or mapped_ty.c_ty == "int8_t":
853 return ("bindings.encodeUint8Array(" + inner + ")", "")
854 elif mapped_ty.c_ty == "uint16_t" or mapped_ty.c_ty == "int16_t":
855 return ("bindings.encodeUint16Array(" + inner + ")", "")
856 elif mapped_ty.c_ty == "uint32_t":
857 return ("bindings.encodeUint32Array(" + inner + ")", "")
858 elif mapped_ty.c_ty == "int64_t" or mapped_ty.c_ty == "uint64_t":
859 return ("bindings.encodeUint64Array(" + inner + ")", "")
860 elif mapped_ty.rust_obj == "LDKStr":
861 return ("XXX-unused", "")
863 print(mapped_ty.c_ty)
866 def primitive_arr_to_hu(self, arr_ty, fixed_len, arr_name, conv_name):
867 mapped_ty = arr_ty.subty
868 if arr_ty.rust_obj == "LDKU128":
869 return "const " + conv_name + ": bigint = bindings.decodeUint128(" + arr_name + ");"
870 elif mapped_ty.c_ty == "uint8_t" or mapped_ty.c_ty == "int8_t":
871 return "const " + conv_name + ": Uint8Array = bindings.decodeUint8Array(" + arr_name + ");"
872 elif mapped_ty.c_ty == "uint16_t" or mapped_ty.c_ty == "int16_t":
873 return "const " + conv_name + ": Uint16Array = bindings.decodeUint16Array(" + arr_name + ");"
874 elif mapped_ty.c_ty == "uint64_t" or mapped_ty.c_ty == "int64_t":
875 return "const " + conv_name + ": bigint[] = bindings.decodeUint64Array(" + arr_name + ");"
879 def var_decl_statement(self, ty_string, var_name, statement):
880 return "const " + var_name + ": " + ty_string + " = " + statement
882 def java_arr_ty_str(self, elem_ty_str):
885 def for_n_in_range(self, n, minimum, maximum):
886 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
887 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
888 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
890 def get_ptr(self, var):
891 return "CommonBase.get_ptr_of(" + var + ")"
892 def set_null_skip_free(self, var):
893 return "CommonBase.set_null_skip_free(" + var + ");"
895 def add_ref(self, holder, referent):
896 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
898 def obj_defined(self, struct_names, folder):
899 with open(self.outdir + "/index.mts", 'a') as index:
900 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
901 with open(self.outdir + "/imports.mts.part", 'a') as imports:
902 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
904 def fully_qualified_hu_ty_path(self, ty):
907 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
908 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
909 out_c = out_c + "\tswitch (ord) {\n"
912 out_typescript_enum_fields = ""
914 for var, var_docs in variants:
915 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
917 if var_docs is not None:
918 var_docs_repld = var_docs.replace("\n", "\n\t")
919 out_typescript_enum_fields += f"/**\n\t * {var_docs_repld}\n\t */\n"
920 out_typescript_enum_fields += f"\t{var},\n\t"
921 out_c = out_c + "\t}\n"
922 out_c = out_c + "\tabort();\n"
923 out_c = out_c + "}\n"
925 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
926 out_c = out_c + "\tswitch (val) {\n"
928 for var, _ in variants:
929 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
931 out_c = out_c + "\t\tdefault: abort();\n"
932 out_c = out_c + "\t}\n"
933 out_c = out_c + "}\n"
935 # Note that this is *not* marked /* @internal */ as we re-expose it directly in enums/
936 enum_comment_formatted = enum_doc_comment.replace("\n", "\n * ")
937 out_typescript = f"""
939 * {enum_comment_formatted}
941 export enum {struct_name} {{
942 {out_typescript_enum_fields}
945 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
946 self.obj_defined([struct_name], "enums")
947 return (out_c, out_typescript_enum, out_typescript)
949 def c_unitary_enum_to_native_call(self, ty_info):
950 return (ty_info.rust_obj + "_to_js(", ")")
951 def native_unitary_enum_to_c_call(self, ty_info):
952 return (ty_info.rust_obj + "_from_js(", ")")
954 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
955 out_typescript_bindings = ""
956 super_instantiator = ""
957 bindings_instantiator = ""
958 pointer_to_adder = ""
959 impl_constructor_arguments = ""
960 for var in flattened_field_var_conversions:
961 if isinstance(var, ConvInfo):
962 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
963 super_instantiator += first_to_lower(var.arg_name) + ", "
964 if var.from_hu_conv is not None:
965 bindings_instantiator += ", " + var.from_hu_conv[0]
966 if var.from_hu_conv[1] != "":
967 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
969 bindings_instantiator += ", " + first_to_lower(var.arg_name)
971 bindings_instantiator += ", " + first_to_lower(var[1]) + ".instance_idx!"
972 super_instantiator += first_to_lower(var[1]) + "_impl, "
973 pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
974 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface"
976 super_constructor_statements = ""
977 trait_constructor_arguments = ""
978 for var in field_var_conversions:
979 if isinstance(var, ConvInfo):
980 trait_constructor_arguments += ", " + var.arg_name
982 super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + super_instantiator + ");\n"
983 trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".instance_idx!"
984 for suparg in var[2]:
985 if isinstance(suparg, ConvInfo):
986 trait_constructor_arguments += ", " + suparg.arg_name
988 # Blindly assume that we can just strip the first arg to build the args for the supertrait
989 super_constructor_statements += "\t\tconst " + first_to_lower(suparg[1]) + " = " + suparg[1] + ".new_impl(" + super_instantiator.split(", ", 1)[1] + ");\n"
990 trait_constructor_arguments += ", " + suparg[1]
992 # BUILD INTERFACE METHODS
993 out_java_interface = ""
994 out_interface_implementation_overrides = ""
996 for fn_line in field_function_lines:
997 java_method_descriptor = ""
998 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
999 out_java_interface += "\t/**" + fn_line.docs.replace("\n", "\n\t * ") + "\n\t */\n"
1000 out_java_interface += "\t" + fn_line.fn_name + "("
1001 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
1003 for idx, arg_conv_info in enumerate(fn_line.args_ty):
1005 out_java_interface += ", "
1006 out_interface_implementation_overrides += ", "
1007 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
1008 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1009 java_method_descriptor += arg_conv_info.java_fn_ty_arg
1010 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
1011 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
1012 java_methods.append((fn_line.fn_name, java_method_descriptor))
1014 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
1016 for arg_info in fn_line.args_ty:
1017 if arg_info.to_hu_conv is not None:
1018 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
1020 if fn_line.ret_ty_info.java_ty != "void":
1021 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
1023 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
1025 for idx, arg_info in enumerate(fn_line.args_ty):
1027 out_interface_implementation_overrides += ", "
1028 if arg_info.to_hu_conv_name is not None:
1029 out_interface_implementation_overrides += arg_info.to_hu_conv_name
1031 out_interface_implementation_overrides += arg_info.arg_name
1033 out_interface_implementation_overrides += ");\n"
1034 if fn_line.ret_ty_info.java_ty != "void":
1035 if fn_line.ret_ty_info.from_hu_conv is not None:
1036 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"
1037 if fn_line.ret_ty_info.from_hu_conv[1] != "":
1038 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"
1039 #if fn_line.ret_ty_info.rust_obj in result_types:
1040 # XXX: We need to handle this in conversion logic so that its cross-language!
1041 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
1042 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
1043 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
1045 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
1046 out_interface_implementation_overrides += f"\t\t\t}},\n"
1048 formatted_trait_docs = trait_doc_comment.replace("\n", "\n * ")
1049 out_typescript_human = f"""
1050 {self.hu_struct_file_prefix}
1052 /** An implementation of {struct_name.replace("LDK","")} */
1053 export interface {struct_name.replace("LDK", "")}Interface {{
1054 {out_java_interface}}}
1056 class {struct_name}Holder {{
1057 held: {struct_name.replace("LDK", "")}|null = null;
1061 * {formatted_trait_docs}
1063 export class {struct_name.replace("LDK","")} extends CommonBase {{
1065 public bindings_instance: bindings.{struct_name}|null;
1068 public instance_idx?: number;
1071 constructor(_dummy: null, ptr: bigint) {{
1072 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1073 this.bindings_instance = null;
1076 /** Creates a new instance of {struct_name.replace("LDK","")} from a given implementation */
1077 public static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
1078 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
1079 let structImplementation = {{
1080 {out_interface_implementation_overrides} }} as bindings.{struct_name};
1081 {super_constructor_statements} const ptr_idx: [bigint, number] = bindings.{struct_name}_new(structImplementation{bindings_instantiator});
1083 impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr_idx[0]);
1084 impl_holder.held.instance_idx = ptr_idx[1];
1085 impl_holder.held.bindings_instance = structImplementation;
1086 {pointer_to_adder} return impl_holder.held!;
1090 self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs")
1092 out_typescript_bindings += "/* @internal */\nexport interface " + struct_name + " {\n"
1094 for fn_line in field_function_lines:
1095 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1096 out_typescript_bindings += f"\t{fn_line.fn_name} ("
1098 for idx, arg_conv_info in enumerate(fn_line.args_ty):
1100 out_typescript_bindings = out_typescript_bindings + ", "
1101 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1103 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
1105 out_typescript_bindings += "}\n\n"
1107 c_call_extra_args = ""
1108 out_typescript_bindings += f"/* @internal */\nexport function {struct_name}_new(impl: {struct_name}"
1109 for var in flattened_field_var_conversions:
1110 if isinstance(var, ConvInfo):
1111 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
1112 c_call_extra_args += f", {var.arg_name}"
1114 out_typescript_bindings += f", {var[1]}: number"
1115 c_call_extra_args += f", {var[1]}"
1118 out_typescript_bindings += f"""): [bigint, number] {{
1119 if(!isWasmInitialized) {{
1120 throw new Error("initializeWasm() must be awaited first!");
1122 var new_obj_idx = js_objs.length;
1123 for (var i = 0; i < js_objs.length; i++) {{
1124 if (js_objs[i] == null || js_objs[i] == undefined) {{ new_obj_idx = i; break; }}
1126 js_objs[i] = new WeakRef(impl);
1127 return [wasm.TS_{struct_name}_new(i{c_call_extra_args}), i];
1131 # Now that we've written out our java code (and created java_meths), generate C
1132 out_c = "typedef struct " + struct_name + "_JCalls {\n"
1133 out_c += "\tatomic_size_t refcnt;\n"
1134 out_c += "\tuint32_t instance_ptr;\n"
1135 for var in flattened_field_var_conversions:
1136 if isinstance(var, ConvInfo):
1137 # We're a regular ol' field
1140 # We're a supertrait
1141 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
1142 out_c = out_c + "} " + struct_name + "_JCalls;\n"
1144 for fn_line in field_function_lines:
1145 if fn_line.fn_name == "free":
1146 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
1147 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
1148 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
1149 out_c = out_c + "\t\tFREE(j_calls);\n"
1150 out_c = out_c + "\t}\n}\n"
1152 for idx, fn_line in enumerate(field_function_lines):
1153 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1154 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
1155 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
1156 if fn_line.self_is_const:
1157 out_c = out_c + "const void* this_arg"
1159 out_c = out_c + "void* this_arg"
1161 for idx, arg in enumerate(fn_line.args_ty):
1162 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
1164 out_c = out_c + ") {\n"
1165 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
1167 for arg_info in fn_line.args_ty:
1168 if arg_info.ret_conv is not None:
1169 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
1170 out_c = out_c + arg_info.arg_name
1171 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
1174 assert len(fn_line.args_ty) < 7
1175 for arg_info in fn_line.args_ty:
1176 if arg_info.c_ty == "uint64_t" or arg_info.c_ty == "int64_t":
1180 for i in range(0, 6 - len(fn_line.args_ty)):
1182 if fn_line.ret_ty_info.c_ty.endswith("Array"):
1183 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
1184 out_c += "js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1185 elif fn_line.ret_ty_info.java_ty == "void":
1186 out_c = out_c + "\tjs_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1187 elif fn_line.ret_ty_info.java_hu_ty == "string":
1188 out_c += "\tjstring ret = (jstring)js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1189 elif fn_line.ret_ty_info.arg_conv is None:
1190 out_c += "\treturn js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1192 out_c += "\tuint64_t ret = js_invoke_function_" + fn_suffix + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
1194 self.function_ptrs[self.function_ptr_counter] = (struct_name, fn_line.fn_name)
1195 self.function_ptr_counter += 1
1197 for idx, arg_info in enumerate(fn_line.args_ty):
1198 if arg_info.ret_conv is not None:
1199 if arg_info.c_ty.endswith("Array"):
1200 out_c += ", (uint32_t)" + arg_info.ret_conv_name
1202 out_c += ", " + arg_info.ret_conv_name
1204 assert False # TODO: Would we need some conversion here?
1205 out_c += ", (uint32_t)" + arg_info.arg_name
1206 for i in range(0, 6 - len(fn_line.args_ty)):
1208 out_c = out_c + ");\n"
1209 if fn_line.ret_ty_info.arg_conv is not None:
1210 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"
1212 out_c = out_c + "}\n"
1214 # Write out a clone function whether we need one or not, as we use them in moving to rust
1215 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
1216 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
1217 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
1218 for var in flattened_field_var_conversions:
1219 if not isinstance(var, ConvInfo):
1220 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[2].replace(".", "->") + "->refcnt, 1, memory_order_release);\n"
1221 out_c = out_c + "}\n"
1223 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (JSValue o"
1224 for var in flattened_field_var_conversions:
1225 if isinstance(var, ConvInfo):
1226 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
1228 out_c = out_c + ", JSValue " + var[1]
1229 out_c = out_c + ") {\n"
1231 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
1232 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
1233 out_c = out_c + "\tcalls->instance_ptr = o;\n"
1235 for (fn_name, java_meth_descr) in java_meths:
1236 if fn_name != "free" and fn_name != "cloned":
1237 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
1238 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
1240 for var in flattened_field_var_conversions:
1241 if isinstance(var, ConvInfo) and var.arg_conv is not None:
1242 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
1243 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
1244 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
1245 for fn_line in field_function_lines:
1246 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
1247 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
1248 elif fn_line.fn_name == "free":
1249 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
1251 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
1252 for var in field_var_conversions:
1253 if isinstance(var, ConvInfo):
1254 if var.arg_conv_name is not None:
1255 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
1256 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
1258 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
1259 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
1261 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
1262 for suparg in var[2]:
1263 if isinstance(suparg, ConvInfo):
1264 out_c += ", " + suparg.arg_name
1266 out_c += ", " + suparg[1]
1268 out_c = out_c + "\t};\n"
1269 for var in flattened_field_var_conversions:
1270 if not isinstance(var, ConvInfo):
1271 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[2] + ".this_arg;\n"
1272 out_c = out_c + "\treturn ret;\n"
1273 out_c = out_c + "}\n"
1275 out_c = out_c + self.c_fn_ty_pfx + "uint64_t " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "JSValue o"
1276 for var in flattened_field_var_conversions:
1277 if isinstance(var, ConvInfo):
1278 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
1280 out_c = out_c + ", JSValue " + var[1]
1281 out_c = out_c + ") {\n"
1282 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
1283 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
1284 for var in flattened_field_var_conversions:
1285 if isinstance(var, ConvInfo):
1286 out_c = out_c + ", " + var.arg_name
1288 out_c = out_c + ", " + var[1]
1289 out_c = out_c + ");\n"
1290 out_c = out_c + "\treturn tag_ptr(res_ptr, true);\n"
1291 out_c = out_c + "}\n"
1293 return (out_typescript_bindings, out_typescript_human, out_c)
1295 def trait_struct_inc_refcnt(self, ty_info):
1296 base_conv = "\nif (" + ty_info.var_name + "_conv.free == " + ty_info.rust_obj + "_JCalls_free) {\n"
1297 base_conv = base_conv + "\t// If this_arg is a JCalls struct, then we need to increment the refcnt in it.\n"
1298 base_conv = base_conv + "\t" + ty_info.rust_obj + "_JCalls_cloned(&" + ty_info.var_name + "_conv);\n}"
1301 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
1302 bindings_type = struct_name.replace("LDK", "")
1303 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
1309 out_java_enum += (self.hu_struct_file_prefix)
1311 java_hu_class = "/**\n * " + enum_doc_comment.replace("\n", "\n * ") + "\n */\n"
1312 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
1313 java_hu_class += "\tprotected constructor(_dummy: null, ptr: bigint) { super(ptr, bindings." + bindings_type + "_free); }\n"
1314 java_hu_class += "\t/* @internal */\n"
1315 java_hu_class += f"\tpublic static constr_from_ptr(ptr: bigint): {java_hu_type} {{\n"
1316 java_hu_class += f"\t\tconst raw_ty: number = bindings." + struct_name + "_ty_from_ptr(ptr);\n"
1317 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"
1318 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
1319 out_c += "\tswitch(obj->tag) {\n"
1320 java_hu_class += "\t\tswitch (raw_ty) {\n"
1321 java_hu_subclasses = ""
1323 out_java += "/* @internal */\nexport class " + struct_name + " {\n"
1324 out_java += "\tprotected constructor() {}\n"
1326 for var in variant_list:
1327 java_hu_subclasses += "/** A " + java_hu_type + " of type " + var.var_name + " */\n"
1328 java_hu_subclasses += "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
1329 java_hu_class += f"\t\t\tcase {var_idx}: "
1330 java_hu_class += "return new " + java_hu_type + "_" + var.var_name + "(ptr);\n"
1331 out_c += f"\t\tcase {struct_name}_{var.var_name}: return {var_idx};\n"
1333 for idx, (field_ty, field_docs) in enumerate(var.fields):
1334 if field_docs is not None:
1335 java_hu_subclasses += "\t/**\n\t * " + field_docs.replace("\n", "\n\t * ") + "\n\t */\n"
1336 java_hu_subclasses += "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
1337 if field_ty.to_hu_conv is not None:
1338 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"
1339 hu_conv_body += f"\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
1340 hu_conv_body += f"\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
1342 hu_conv_body += f"\t\tthis.{field_ty.arg_name} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
1343 java_hu_subclasses += "\t/* @internal */\n"
1344 java_hu_subclasses += "\tpublic constructor(ptr: bigint) {\n\t\tsuper(null, ptr);\n"
1345 java_hu_subclasses = java_hu_subclasses + hu_conv_body
1346 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
1349 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"
1350 out_java += self.fn_call_body(struct_name + "_ty_from_ptr", "uint32_t", "number", "ptr: bigint", "ptr")
1351 out_c += ("\t\tdefault: abort();\n")
1352 out_c += ("\t}\n}\n")
1354 for var in variant_list:
1355 for idx, (field_map, _) in enumerate(var.fields):
1356 fn_name = f"{struct_name}_{var.var_name}_get_{field_map.arg_name}"
1357 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"
1358 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)untag_ptr(ptr);\n"
1359 out_c += f"\tassert(obj->tag == {struct_name}_{var.var_name});\n"
1360 if field_map.ret_conv is not None:
1361 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
1362 if var.tuple_variant:
1363 out_c += "obj->" + camel_to_snake(var.var_name)
1365 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
1366 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
1367 out_c += "\treturn " + field_map.ret_conv_name + ";\n"
1369 if var.tuple_variant:
1370 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + ";\n"
1372 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name + ";\n"
1374 out_java += self.fn_call_body(fn_name, field_map.c_ty, field_map.java_ty, "ptr: bigint", "ptr")
1375 out_java_enum += java_hu_class
1376 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1377 self.obj_defined([java_hu_type], "structs")
1378 return (out_java, out_java_enum, out_c)
1380 def map_opaque_struct(self, struct_name, struct_doc_comment):
1383 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1384 out_opaque_struct_human = f"{self.hu_struct_file_prefix}"
1385 constructor_body = "super(ptr, bindings." + struct_name.replace("LDK","") + "_free);"
1388 if struct_name.startswith("LDKLocked") or struct_name.startswith("LDKReadOnly"):
1389 extra_docs = "\n * This type represents a lock and MUST BE MANUALLY FREE'd!"
1390 constructor_body = 'super(ptr, () => { throw new Error("Locks must be manually freed with free()"); });'
1392 /** Releases this lock */
1394 bindings.{struct_name.replace("LDK","")}_free(this.ptr);
1395 CommonBase.set_null_skip_free(this);
1397 formatted_doc_comment = struct_doc_comment.replace("\n", "\n * ")
1398 out_opaque_struct_human += f"""
1400 * {formatted_doc_comment}
1402 export class {hu_name} extends CommonBase {{
1404 public constructor(_dummy: null, ptr: bigint) {{
1409 self.obj_defined([hu_name], "structs")
1410 return out_opaque_struct_human
1412 def map_tuple(self, struct_name):
1413 return self.map_opaque_struct(struct_name, "A Tuple")
1415 def map_result(self, struct_name, res_map, err_map):
1416 human_ty = struct_name.replace("LDKCResult", "Result")
1418 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1419 if res_map.java_hu_ty != "void":
1420 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1423 public constructor(_dummy: null, ptr: bigint) {{
1426 if res_map.java_hu_ty == "void":
1428 elif res_map.to_hu_conv is not None:
1429 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1430 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1431 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1433 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1434 suffixes += "\t}\n}\n"
1436 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1437 if err_map.java_hu_ty != "void":
1438 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1441 public constructor(_dummy: null, ptr: bigint) {{
1444 if err_map.java_hu_ty == "void":
1446 elif err_map.to_hu_conv is not None:
1447 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1448 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1449 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1451 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1452 suffixes += "\t}\n}"
1454 self.struct_file_suffixes[human_ty] = suffixes
1455 self.obj_defined([human_ty], "structs")
1457 return f"""{self.hu_struct_file_prefix}
1459 export class {human_ty} extends CommonBase {{
1460 protected constructor(_dummy: null, ptr: bigint) {{
1461 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1464 public static constr_from_ptr(ptr: bigint): {human_ty} {{
1465 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1466 return new {human_ty}_OK(null, ptr);
1468 return new {human_ty}_Err(null, ptr);
1473 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1474 has_return_value = return_c_ty != 'void'
1475 return_statement = 'return nativeResponseValue;'
1476 if not has_return_value:
1477 return_statement = '// debug statements here'
1479 return f"""/* @internal */
1480 export function {method_name}({method_argument_string}): {return_java_ty} {{
1481 if(!isWasmInitialized) {{
1482 throw new Error("initializeWasm() must be awaited first!");
1484 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1488 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):
1491 out_java_struct = None
1494 out_c += (self.c_fn_ty_pfx)
1495 out_c += (return_type_info.c_ty)
1496 out_java += (return_type_info.java_ty)
1497 if return_type_info.ret_conv is not None:
1498 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1499 out_java += (" " + method_name + "(")
1500 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1502 method_argument_string = ""
1503 native_call_argument_string = ""
1504 for idx, arg_conv_info in enumerate(argument_types):
1506 method_argument_string += (", ")
1507 native_call_argument_string += ', '
1509 if arg_conv_info.c_ty != "void":
1510 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1511 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1512 native_call_argument_string += arg_conv_info.arg_name
1513 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)
1515 out_java_struct = ""
1516 if doc_comment is not None:
1517 out_java_struct = "\t/**\n\t * " + doc_comment.replace("\n", "\n\t * ") + "\n\t */\n"
1520 out_java_struct += ("\t// Skipped " + method_name + "\n")
1523 out_java_struct += (
1524 "\tpublic static constructor_" + meth_n + "(")
1526 out_java_struct += ("\tpublic " + meth_n + "(")
1527 for idx, arg in enumerate(argument_types):
1529 if not takes_self or idx > 1:
1530 out_java_struct += (", ")
1533 if arg.java_ty != "void":
1534 if arg.arg_name in default_constructor_args:
1535 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1536 if explode_idx != 0:
1537 out_java_struct += (", ")
1538 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1540 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1542 out_java_struct += "|null"
1545 if out_java_struct is not None:
1546 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1547 for info in argument_types:
1548 if info.arg_conv is not None:
1549 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1550 if return_type_info.ret_conv is not None:
1551 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1552 elif return_type_info.c_ty != "void":
1553 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1556 if c_call_string is None:
1557 out_c += (method_name + "(")
1559 out_c += (c_call_string)
1560 for idx, info in enumerate(argument_types):
1561 if info.arg_conv_name is not None:
1564 elif c_call_string is not None:
1566 out_c += (info.arg_conv_name)
1568 if return_type_info.ret_conv is not None:
1569 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1572 for info in argument_types:
1573 if info.arg_conv_cleanup is not None:
1574 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1575 if return_type_info.ret_conv is not None:
1576 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1577 elif return_type_info.c_ty != "void":
1578 out_c += ("\n\treturn ret_val;")
1579 out_c += ("\n}\n\n")
1582 out_java_struct += ("\t\t")
1583 if return_type_info.java_ty != "void":
1584 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1585 out_java_struct += ("bindings." + method_name + "(")
1586 for idx, info in enumerate(argument_types):
1588 out_java_struct += (", ")
1589 if idx == 0 and takes_self:
1590 out_java_struct += ("this.ptr")
1591 elif info.arg_name in default_constructor_args:
1592 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1593 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1594 if explode_idx != 0:
1595 out_java_struct += (", ")
1596 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1597 if explode_arg.from_hu_conv is not None:
1598 out_java_struct += (
1599 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1601 out_java_struct += (expl_arg_name)
1602 out_java_struct += (")")
1603 elif info.from_hu_conv is not None:
1604 out_java_struct += (info.from_hu_conv[0])
1606 out_java_struct += (info.arg_name)
1607 out_java_struct += (");\n")
1608 if return_type_info.to_hu_conv is not None:
1610 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1611 return_type_info.to_hu_conv_name) + "\n")
1613 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1615 for idx, info in enumerate(argument_types):
1616 if idx == 0 and takes_self:
1618 elif info.arg_name in default_constructor_args:
1619 for explode_arg in default_constructor_args[info.arg_name]:
1620 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1621 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1622 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1623 expl_arg_name).replace(
1624 "this", return_type_info.to_hu_conv_name) + ";\n")
1625 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1626 if not takes_self and return_type_info.to_hu_conv_name is not None:
1627 out_java_struct += (
1628 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1630 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1632 if return_type_info.to_hu_conv_name is not None:
1633 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1634 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1635 out_java_struct += ("\t\treturn ret;\n")
1636 out_java_struct += ("\t}\n\n")
1638 return (out_java, out_c, out_java_struct)
1641 for struct in self.struct_file_suffixes:
1642 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1643 src.write(self.struct_file_suffixes[struct])
1645 with open(self.outdir + "/bindings.mts", "a") as bindings:
1648 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) {
1649 const weak: WeakRef<object>|undefined = js_objs[obj_ptr];
1650 if (weak == null || weak == undefined) {
1651 console.error("Got function call on unknown/free'd JS object!");
1652 throw new Error("Got function call on unknown/free'd JS object!");
1654 const obj = weak.deref();
1655 if (obj == null || obj == undefined) {
1656 console.error("Got function call on GC'd JS object!");
1657 throw new Error("Got function call on GC'd JS object!");
1661 bindings.write("\tswitch (fn_id) {\n")
1662 for f in self.function_ptrs:
1663 bindings.write(f"\t\tcase {str(f)}: fn = Object.getOwnPropertyDescriptor(obj, \"{self.function_ptrs[f][1]}\"); break;\n")
1665 bindings.write("""\t\tdefault:
1666 console.error("Got unknown function call with id " + fn_id + " from C!");
1667 throw new Error("Got unknown function call with id " + fn_id + " from C!");
1669 if (fn == null || fn == undefined) {
1670 console.error("Got function call with id " + fn_id + " on incorrect JS object: " + obj);
1671 throw new Error("Got function call with id " + fn_id + " on incorrect JS object: " + obj);
1675 ret = fn.value.bind(obj)(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
1677 console.error("Got an exception calling function with id " + fn_id + "! This is fatal.");
1681 if (ret === undefined || ret === null) return BigInt(0);