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 uint8_t = ['number', 'Uint8Array'],
21 uint16_t = ['number', 'Uint16Array'],
22 uint32_t = ['number', 'Uint32Array'],
23 uint64_t = ['BigInt'],
25 self.java_type_map = dict(
28 self.java_hu_type_map = dict(
32 self.wasm_decoding_map = dict(
33 int8_tArray = 'decodeUint8Array'
36 self.wasm_encoding_map = dict(
37 int8_tArray = 'encodeUint8Array',
40 self.to_hu_conv_templates = dict(
41 ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
42 default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
45 self.bindings_header = self.wasm_import_header(target)
47 self.bindings_version_file = ""
49 self.bindings_footer = ""
51 self.common_base = """
52 function freer(f: () => void) { f() }
53 const finalizer = new FinalizationRegistry(freer);
54 function get_freeer(ptr: number, free_fn: (ptr: number) => void) {
60 export default class CommonBase {
61 protected ptr: number;
62 protected ptrs_to: object[] = [];
63 protected constructor(ptr: number, free_fn: (ptr: number) => void) {
65 if (Number.isFinite(ptr) && ptr != 0){
66 finalizer.register(this, get_freeer(ptr, free_fn));
69 // In Java, protected means "any subclass can access fields on any other subclass'"
70 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
71 // To work around this, we add accessors for other instances' protected fields here.
72 protected static add_ref_from(holder: CommonBase, referent: object) {
73 holder.ptrs_to.push(referent);
75 protected static get_ptr_of(o: CommonBase) {
78 protected static set_null_skip_free(o: CommonBase) {
80 finalizer.unregister(o);
85 self.txout_defn = """export class TxOut extends CommonBase {
86 /** The script_pubkey in this output */
87 public script_pubkey: Uint8Array;
88 /** The value, in satoshis, of this output */
92 public constructor(_dummy: object, ptr: number) {
93 super(ptr, bindings.TxOut_free);
94 this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr);
95 this.value = bindings.TxOut_get_value(ptr);
97 public constructor_new(value: BigInt, script_pubkey: Uint8Array): TxOut {
98 return new TxOut(null, bindings.TxOut_new(script_pubkey, value));
101 self.obj_defined(["TxOut"], "structs")
103 self.c_file_pfx = """#include "js-wasm.h"
104 #include <stdatomic.h>
105 #include <lightning.h>
107 // These should be provided...somehow...
108 void *memset(void *s, int c, size_t n);
109 void *memcpy(void *dest, const void *src, size_t n);
110 int memcmp(const void *s1, const void *s2, size_t n);
112 extern void __attribute__((noreturn)) abort(void);
113 static inline void assert(bool expression) {
114 if (!expression) { abort(); }
117 uint32_t __attribute__((export_name("test_bigint_pass_deadbeef0badf00d"))) test_bigint_pass_deadbeef0badf00d(uint64_t val) {
118 return val == 0xdeadbeef0badf00dULL;
124 self.c_file_pfx = self.c_file_pfx + """
125 void *malloc(size_t size);
126 void free(void *ptr);
128 #define MALLOC(a, _) malloc(a)
129 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
130 #define DO_ASSERT(a) (void)(a)
132 #define CHECK_ACCESS(p)
133 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
136 self.c_file_pfx = self.c_file_pfx + """
137 // Always run a, then assert it is true:
138 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
139 // Assert a is true or do nothing
140 #define CHECK(a) DO_ASSERT(a)
142 // Running a leak check across all the allocations and frees of the JDK is a mess,
143 // so instead we implement our own naive leak checker here, relying on the -wrap
144 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
145 // and free'd in Rust or C across the generated bindings shared library.
148 typedef struct allocation {
149 struct allocation* next;
151 const char* struct_name;
153 static allocation* allocation_ll = NULL;
155 void* __real_malloc(size_t len);
156 void* __real_calloc(size_t nmemb, size_t len);
157 static void new_allocation(void* res, const char* struct_name) {
158 allocation* new_alloc = __real_malloc(sizeof(allocation));
159 new_alloc->ptr = res;
160 new_alloc->struct_name = struct_name;
161 new_alloc->next = allocation_ll;
162 allocation_ll = new_alloc;
164 static void* MALLOC(size_t len, const char* struct_name) {
165 void* res = __real_malloc(len);
166 new_allocation(res, struct_name);
169 void __real_free(void* ptr);
170 static void alloc_freed(void* ptr) {
171 allocation* p = NULL;
172 allocation* it = allocation_ll;
173 while (it->ptr != ptr) {
174 p = it; it = it->next;
176 //XXX: fprintf(stderr, "Tried to free unknown pointer %p\\n", ptr);
177 return; // addrsan should catch malloc-unknown and print more info than we have
180 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
181 DO_ASSERT(it->ptr == ptr);
184 static void FREE(void* ptr) {
185 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
190 static void CHECK_ACCESS(const void* ptr) {
191 allocation* it = allocation_ll;
192 while (it->ptr != ptr) {
195 return; // addrsan should catch malloc-unknown and print more info than we have
199 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
200 if (v.is_owned && v.inner != NULL) { \\
201 const void *p = __unmangle_inner_ptr(v.inner); \\
207 void* __wrap_malloc(size_t len) {
208 void* res = __real_malloc(len);
209 new_allocation(res, "malloc call");
212 void* __wrap_calloc(size_t nmemb, size_t len) {
213 void* res = __real_calloc(nmemb, len);
214 new_allocation(res, "calloc call");
217 void __wrap_free(void* ptr) {
218 if (ptr == NULL) return;
223 void* __real_realloc(void* ptr, size_t newlen);
224 void* __wrap_realloc(void* ptr, size_t len) {
225 if (ptr != NULL) alloc_freed(ptr);
226 void* res = __real_realloc(ptr, len);
227 new_allocation(res, "realloc call");
230 void __wrap_reallocarray(void* ptr, size_t new_sz) {
231 // Rust doesn't seem to use reallocarray currently
235 void __attribute__((destructor)) check_leaks() {
236 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
237 //XXX: fprintf(stderr, "%s %p remains\\n", a->struct_name, a->ptr);
239 DO_ASSERT(allocation_ll == NULL);
242 self.c_file_pfx = self.c_file_pfx + """
243 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
244 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
245 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
246 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
248 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
250 #define DECL_ARR_TYPE(ty, name) \\
251 struct name##array { \\
255 typedef struct name##array * name##Array; \\
256 static inline name##Array init_##name##Array(size_t arr_len) { \\
257 name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \\
258 arr->arr_len = arr_len; \\
262 DECL_ARR_TYPE(int64_t, int64_t);
263 DECL_ARR_TYPE(int8_t, int8_t);
264 DECL_ARR_TYPE(uint32_t, uint32_t);
265 DECL_ARR_TYPE(void*, ptr);
266 DECL_ARR_TYPE(char, char);
267 typedef charArray jstring;
269 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
270 charArray arr = init_charArray(len);
271 memcpy(arr->elems, chars, len);
274 static inline LDKStr str_ref_to_owned_c(const jstring str) {
275 char* newchars = MALLOC(str->arr_len + 1, "String chars");
276 memcpy(newchars, str->elems, str->arr_len);
277 newchars[str->arr_len] = 0;
281 .chars_is_owned = true
286 typedef bool jboolean;
288 uint32_t __attribute__((export_name("TS_malloc"))) TS_malloc(uint32_t size) {
289 return (uint32_t)MALLOC(size, "JS-Called malloc");
291 void __attribute__((export_name("TS_free"))) TS_free(uint32_t ptr) {
296 self.c_version_file = ""
298 self.hu_struct_file_prefix = """
299 import CommonBase from './CommonBase.mjs';
300 import * as bindings from '../bindings.mjs'
301 import * as InternalUtils from '../InternalUtils.mjs'
304 self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n"
305 self.util_fn_sfx = "}"
306 self.c_fn_ty_pfx = ""
307 self.file_ext = ".mts"
308 self.ptr_c_ty = "uint32_t"
309 self.ptr_native_ty = "number"
310 self.result_c_ty = "uint32_t"
311 self.ptr_arr = "ptrArray"
312 self.is_arr_some_check = ("", " != 0")
313 self.get_native_arr_len_call = ("", "->arr_len")
315 with open(outdir + "/InternalUtils.mts", "w") as f:
316 f.write("export function check_arr_len(arr: Uint8Array, len: number): Uint8Array {\n")
317 f.write("\tif (arr.length != len) { throw new Error(\"Expected array of length \" + len + \"got \" + arr.length); }\n")
318 f.write("\treturn arr;\n")
321 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
323 def create_native_arr_call(self, arr_len, ty_info):
324 if ty_info.c_ty == "ptrArray":
325 assert ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array")
326 return "init_" + ty_info.c_ty + "(" + arr_len + ")"
327 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
328 if ty_info.c_ty == "int8_tArray":
329 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
332 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
333 if ty_info.c_ty == "int8_tArray":
335 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + arr_len + ")"
336 if ty_info.c_ty == "ptrArray":
337 return "(void*) " + arr_name + "->elems"
340 return arr_name + "->elems"
341 def get_native_arr_elem(self, arr_name, idxc, ty_info):
342 assert False # Only called if above is None
343 def get_native_arr_ptr_call(self, ty_info):
344 if ty_info.subty is not None:
345 return "(" + ty_info.subty.c_ty + "*)(((uint8_t*)", ") + 4)"
346 return "(" + ty_info.c_ty + "*)(((uint8_t*)", ") + 4)"
347 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
349 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
350 if ty_info.c_ty == "int8_tArray":
355 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
356 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
358 def str_ref_to_native_call(self, var_name, str_len):
359 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
360 def str_ref_to_c_call(self, var_name):
361 return "str_ref_to_owned_c(" + var_name + ")"
362 def str_to_hu_conv(self, var_name):
363 return "const " + var_name + "_conv: string = bindings.decodeString(" + var_name + ");"
364 def str_from_hu_conv(self, var_name):
365 return ("bindings.encodeString(" + var_name + ")", "")
367 def c_fn_name_define_pfx(self, fn_name, have_args):
368 return " __attribute__((export_name(\"TS_" + fn_name + "\"))) TS_" + fn_name + "("
370 def wasm_import_header(self, target):
372 const imports: any = {};
375 var js_objs: Array<WeakRef<object>> = [];
376 var js_invoke: Function;
378 imports.wasi_snapshot_preview1 = {
379 "fd_write": (fd: number, iovec_array_ptr: number, iovec_array_len: number) => {
380 // This should generally only be used to print panic messages
381 console.log("FD_WRITE to " + fd + " in " + iovec_array_len + " chunks.");
382 const ptr_len_view = new Uint32Array(wasm.memory.buffer, iovec_array_ptr, iovec_array_len * 2);
383 for (var i = 0; i < iovec_array_len; i++) {
384 const bytes_view = new Uint8Array(wasm.memory.buffer, ptr_len_view[i*2], ptr_len_view[i*2+1]);
385 console.log(String.fromCharCode(...bytes_view));
389 "random_get": (buf_ptr: number, buf_len: number) => {
390 const buf = new Uint8Array(wasm.memory.buffer, buf_ptr, buf_len);
391 crypto.getRandomValues(buf);
394 "environ_sizes_get": (environ_var_count_ptr: number, environ_len_ptr: number) => {
395 // This is called before fd_write to format + print panic messages
396 console.log("wasi_snapshot_preview1:environ_sizes_get");
397 const out_count_view = new Uint32Array(wasm.memory.buffer, environ_var_count_ptr, 1);
398 out_count_view[0] = 1;
399 const out_len_view = new Uint32Array(wasm.memory.buffer, environ_len_ptr, 1);
400 out_len_view[0] = "RUST_BACKTRACE=1".length + 1; // Note that string must be NULL-terminated
403 "environ_get": (environ_ptr: number, environ_buf_ptr: number) => {
404 // This is called before fd_write to format + print panic messages
405 console.log("wasi_snapshot_preview1:environ_get");
406 const out_ptrs = new Uint32Array(wasm.memory.buffer, environ_ptr, 2);
407 out_ptrs[0] = environ_buf_ptr;
408 out_ptrs[1] = "RUST_BACKTRACE=1".length;
409 const out_environ = new Uint8Array(wasm.memory.buffer, environ_buf_ptr, out_ptrs[1]);
410 for (var i = 0; i < out_ptrs[1]; i++) { out_environ[i] = "RUST_BACKTRACE=1".codePointAt(i); }
411 out_environ[out_ptrs[1]] = 0;
414 "proc_exit" : () => {
415 console.log("wasi_snapshot_preview1:proc_exit");
419 var wasm: any = null;
420 let isWasmInitialized: boolean = false;
423 if target == Target.NODEJS:
424 res += """import * as fs from 'fs';
425 import { webcrypto as crypto } from 'crypto';
426 export async function initializeWasm(path: string) {
427 const source = fs.readFileSync(path);
428 imports.env["js_invoke_function"] = js_invoke;
429 const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports);
430 wasm = wasmInstance.exports;
431 if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) {
432 throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint");
434 isWasmInitialized = true;
439 export async function initializeWasm(uri: string) {
440 const stream = fetch(uri);
441 imports.env["js_invoke_function"] = js_invoke;
442 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
443 wasm = wasmInstance.exports;
444 if (!wasm.test_bigint_pass_deadbeef0badf00d(BigInt("0xdeadbeef0badf00d"))) {
445 throw new Error(\"Currently need BigInt-as-u64 support, try ----experimental-wasm-bigint");
447 isWasmInitialized = true;
457 const nextMultipleOfFour = (value: number) => {
458 return Math.ceil(value / 4) * 4;
461 const encodeUint8Array = (inputArray: Uint8Array) => {
462 const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
463 const arrayLengthView = new Uint32Array(wasm.memory.buffer, cArrayPointer, 1);
464 arrayLengthView[0] = inputArray.length;
465 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 4, inputArray.length);
466 arrayMemoryView.set(inputArray);
467 return cArrayPointer;
470 const encodeUint32Array = (inputArray: Uint32Array) => {
471 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
472 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer, inputArray.length);
473 arrayMemoryView.set(inputArray, 1);
474 arrayMemoryView[0] = inputArray.length;
475 return cArrayPointer;
478 const getArrayLength = (arrayPointer: number) => {
479 const arraySizeViewer = new Uint32Array(
480 wasm.memory.buffer, // value
481 arrayPointer, // offset
484 return arraySizeViewer[0];
486 const decodeUint8Array = (arrayPointer: number, free = true) => {
487 const arraySize = getArrayLength(arrayPointer);
488 const actualArrayViewer = new Uint8Array(
489 wasm.memory.buffer, // value
490 arrayPointer + 4, // offset (ignoring length bytes)
491 arraySize // uint8 count
493 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
494 // will free the underlying memory when it becomes unreachable instead of copying here.
495 const actualArray = actualArrayViewer.slice(0, arraySize);
497 wasm.TS_free(arrayPointer);
501 const decodeUint32Array = (arrayPointer: number, free = true) => {
502 const arraySize = getArrayLength(arrayPointer);
503 const actualArrayViewer = new Uint32Array(
504 wasm.memory.buffer, // value
505 arrayPointer + 4, // offset (ignoring length bytes)
506 arraySize // uint32 count
508 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
509 // will free the underlying memory when it becomes unreachable instead of copying here.
510 const actualArray = actualArrayViewer.slice(0, arraySize);
512 wasm.TS_free(arrayPointer);
517 export function encodeString(str: string): number {
518 const charArray = new TextEncoder().encode(str);
519 return encodeUint8Array(charArray);
522 export function decodeString(stringPointer: number, free = true): string {
523 const arraySize = getArrayLength(stringPointer);
524 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer + 4, arraySize);
525 const result = new TextDecoder("utf-8").decode(memoryView);
528 wasm.TS_free(stringPointer);
538 def constr_hu_array(self, ty_info, arr_len):
539 return "new Array(" + arr_len + ").fill(null)"
541 def var_decl_statement(self, ty_string, var_name, statement):
542 return "const " + var_name + ": " + ty_string + " = " + statement
544 def for_n_in_range(self, n, minimum, maximum):
545 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
546 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
547 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
549 def get_ptr(self, var):
550 return "CommonBase.get_ptr_of(" + var + ")"
551 def set_null_skip_free(self, var):
552 return "CommonBase.set_null_skip_free(" + var + ");"
554 def add_ref(self, holder, referent):
555 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
557 def obj_defined(self, struct_names, folder):
558 with open(self.outdir + "/index.mts", 'a') as index:
559 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
560 with open(self.outdir + "/imports.mts.part", 'a') as imports:
561 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
563 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
564 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
565 out_c = out_c + "\tswitch (ord) {\n"
568 out_typescript_enum_fields = ""
570 for var, var_docs in variants:
571 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
573 if var_docs is not None:
574 out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
575 out_typescript_enum_fields += f"{var},\n\t\t\t\t"
576 out_c = out_c + "\t}\n"
577 out_c = out_c + "\tabort();\n"
578 out_c = out_c + "}\n"
580 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
581 out_c = out_c + "\tswitch (val) {\n"
583 for var, _ in variants:
584 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
586 out_c = out_c + "\t\tdefault: abort();\n"
587 out_c = out_c + "\t}\n"
588 out_c = out_c + "}\n"
590 out_typescript = f"""
591 export enum {struct_name} {{
592 {out_typescript_enum_fields}
595 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
596 self.obj_defined([struct_name], "enums")
597 return (out_c, out_typescript_enum, out_typescript)
599 def c_unitary_enum_to_native_call(self, ty_info):
600 return (ty_info.rust_obj + "_to_js(", ")")
601 def native_unitary_enum_to_c_call(self, ty_info):
602 return (ty_info.rust_obj + "_from_js(", ")")
604 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
605 out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
607 super_instantiator = ""
608 bindings_instantiator = ""
609 pointer_to_adder = ""
610 impl_constructor_arguments = ""
611 for var in flattened_field_var_conversions:
612 if isinstance(var, ConvInfo):
613 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
614 super_instantiator += first_to_lower(var.arg_name) + ", "
615 if var.from_hu_conv is not None:
616 bindings_instantiator += ", " + var.from_hu_conv[0]
617 if var.from_hu_conv[1] != "":
618 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
620 bindings_instantiator += ", " + first_to_lower(var.arg_name)
622 bindings_instantiator += ", " + first_to_lower(var[1]) + ".bindings_instance"
623 super_instantiator += first_to_lower(var[1]) + "_impl, "
624 pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
625 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface"
627 super_constructor_statements = ""
628 trait_constructor_arguments = ""
629 for var in field_var_conversions:
630 if isinstance(var, ConvInfo):
631 trait_constructor_arguments += ", " + var.arg_name
633 super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + super_instantiator + ");\n"
634 trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".bindings_instance"
635 for suparg in var[2]:
636 if isinstance(suparg, ConvInfo):
637 trait_constructor_arguments += ", " + suparg.arg_name
639 trait_constructor_arguments += ", " + suparg[1]
641 # BUILD INTERFACE METHODS
642 out_java_interface = ""
643 out_interface_implementation_overrides = ""
645 for fn_line in field_function_lines:
646 java_method_descriptor = ""
647 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
648 out_java_interface += "\t" + fn_line.fn_name + "("
649 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
651 for idx, arg_conv_info in enumerate(fn_line.args_ty):
653 out_java_interface += ", "
654 out_interface_implementation_overrides += ", "
655 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
656 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
657 java_method_descriptor += arg_conv_info.java_fn_ty_arg
658 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
659 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
660 java_methods.append((fn_line.fn_name, java_method_descriptor))
662 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
664 for arg_info in fn_line.args_ty:
665 if arg_info.to_hu_conv is not None:
666 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
668 if fn_line.ret_ty_info.java_ty != "void":
669 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
671 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
673 for idx, arg_info in enumerate(fn_line.args_ty):
675 out_interface_implementation_overrides += ", "
676 if arg_info.to_hu_conv_name is not None:
677 out_interface_implementation_overrides += arg_info.to_hu_conv_name
679 out_interface_implementation_overrides += arg_info.arg_name
681 out_interface_implementation_overrides += ");\n"
682 if fn_line.ret_ty_info.java_ty != "void":
683 if fn_line.ret_ty_info.from_hu_conv is not None:
684 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"
685 if fn_line.ret_ty_info.from_hu_conv[1] != "":
686 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"
687 #if fn_line.ret_ty_info.rust_obj in result_types:
688 # XXX: We need to handle this in conversion logic so that its cross-language!
689 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
690 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
691 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
693 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
694 out_interface_implementation_overrides += f"\t\t\t}},\n"
696 out_typescript_human = f"""
697 {self.hu_struct_file_prefix}
699 export interface {struct_name.replace("LDK", "")}Interface {{
700 {out_java_interface}}}
702 class {struct_name}Holder {{
703 held: {struct_name.replace("LDK", "")};
706 export class {struct_name.replace("LDK","")} extends CommonBase {{
708 public bindings_instance?: bindings.{struct_name};
711 constructor(_dummy: object, ptr: number) {{
712 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
713 this.bindings_instance = null;
716 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
717 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
718 let structImplementation = {{
719 {out_interface_implementation_overrides} }} as bindings.{struct_name};
720 {super_constructor_statements} const ptr: number = bindings.{struct_name}_new(structImplementation{bindings_instantiator});
722 impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr);
723 impl_holder.held.bindings_instance = structImplementation;
724 {pointer_to_adder} return impl_holder.held;
727 self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs")
729 out_typescript_bindings += "export interface " + struct_name + " {\n"
731 for fn_line in field_function_lines:
732 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
733 out_typescript_bindings += f"\t{fn_line.fn_name} ("
735 for idx, arg_conv_info in enumerate(fn_line.args_ty):
737 out_typescript_bindings = out_typescript_bindings + ", "
738 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
740 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
742 out_typescript_bindings += "}\n\n"
744 out_typescript_bindings += f"export function {struct_name}_new(impl: {struct_name}"
745 for var in flattened_field_var_conversions:
746 if isinstance(var, ConvInfo):
747 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
749 out_typescript_bindings += f", {var[1]}: {var[0]}"
751 out_typescript_bindings += f"""): number {{
752 if(!isWasmInitialized) {{
753 throw new Error("initializeWasm() must be awaited first!");
755 var new_obj_idx = js_objs.length;
756 for (var i = 0; i < js_objs.length; i++) {{
757 if (js_objs[i] == null || js_objs[i] == undefined) {{ new_obj_idx = i; break; }}
759 js_objs[i] = new WeakRef(impl);
760 return wasm.TS_{struct_name}_new(i);
764 out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
766 # Now that we've written out our java code (and created java_meths), generate C
767 out_c = "typedef struct " + struct_name + "_JCalls {\n"
768 out_c += "\tatomic_size_t refcnt;\n"
769 out_c += "\tuint32_t instance_ptr;\n"
770 for var in flattened_field_var_conversions:
771 if isinstance(var, ConvInfo):
772 # We're a regular ol' field
776 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
777 out_c = out_c + "} " + struct_name + "_JCalls;\n"
779 for fn_line in field_function_lines:
780 if fn_line.fn_name == "free":
781 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
782 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
783 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
784 out_c = out_c + "\t\tFREE(j_calls);\n"
785 out_c = out_c + "\t}\n}\n"
787 for idx, fn_line in enumerate(field_function_lines):
788 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
789 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
790 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
791 if fn_line.self_is_const:
792 out_c = out_c + "const void* this_arg"
794 out_c = out_c + "void* this_arg"
796 for idx, arg in enumerate(fn_line.args_ty):
797 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
799 out_c = out_c + ") {\n"
800 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
802 for arg_info in fn_line.args_ty:
803 if arg_info.ret_conv is not None:
804 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
805 out_c = out_c + arg_info.arg_name
806 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
808 if fn_line.ret_ty_info.c_ty.endswith("Array"):
809 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
810 out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
811 elif fn_line.ret_ty_info.java_ty == "void":
812 out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
813 elif fn_line.ret_ty_info.java_hu_ty == "string":
814 out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
815 elif not fn_line.ret_ty_info.passed_as_ptr:
816 out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
818 out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)
820 self.function_ptrs[self.function_ptr_counter] = (struct_name, fn_line.fn_name)
821 self.function_ptr_counter += 1
823 for idx, arg_info in enumerate(fn_line.args_ty):
824 if arg_info.ret_conv is not None:
825 out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
827 out_c = out_c + ", (uint32_t)" + arg_info.arg_name
828 out_c = out_c + ");\n"
829 if fn_line.ret_ty_info.arg_conv is not None:
830 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"
832 out_c = out_c + "}\n"
834 # Write out a clone function whether we need one or not, as we use them in moving to rust
835 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
836 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
837 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
838 for var in field_var_conversions:
839 if not isinstance(var, ConvInfo):
840 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
841 out_c = out_c + "}\n"
843 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (JSValue o"
844 for var in flattened_field_var_conversions:
845 if isinstance(var, ConvInfo):
846 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
848 out_c = out_c + ", JSValue " + var[1]
849 out_c = out_c + ") {\n"
851 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
852 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
853 out_c = out_c + "\tcalls->instance_ptr = o;\n"
855 for (fn_name, java_meth_descr) in java_meths:
856 if fn_name != "free" and fn_name != "cloned":
857 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
858 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
860 for var in flattened_field_var_conversions:
861 if isinstance(var, ConvInfo) and var.arg_conv is not None:
862 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
863 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
864 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
865 for fn_line in field_function_lines:
866 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
867 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
868 elif fn_line.fn_name == "free":
869 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
871 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
872 for var in field_var_conversions:
873 if isinstance(var, ConvInfo):
874 if var.arg_conv_name is not None:
875 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
876 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
878 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
879 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
881 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
882 for suparg in var[2]:
883 if isinstance(suparg, ConvInfo):
884 out_c += ", " + suparg.arg_name
886 out_c += ", " + suparg[1]
888 out_c = out_c + "\t};\n"
889 for var in flattened_field_var_conversions:
890 if not isinstance(var, ConvInfo):
891 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
892 out_c = out_c + "\treturn ret;\n"
893 out_c = out_c + "}\n"
895 out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "JSValue o"
896 for var in flattened_field_var_conversions:
897 if isinstance(var, ConvInfo):
898 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
900 out_c = out_c + ", JSValue " + var[1]
901 out_c = out_c + ") {\n"
902 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
903 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
904 for var in flattened_field_var_conversions:
905 if isinstance(var, ConvInfo):
906 out_c = out_c + ", " + var.arg_name
908 out_c = out_c + ", " + var[1]
909 out_c = out_c + ");\n"
910 out_c = out_c + "\treturn (long)res_ptr;\n"
911 out_c = out_c + "}\n"
913 return (out_typescript_bindings, out_typescript_human, out_c)
915 def trait_struct_inc_refcnt(self, ty_info):
918 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
919 bindings_type = struct_name.replace("LDK", "")
920 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
926 out_java_enum += (self.hu_struct_file_prefix)
929 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
930 java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr, bindings." + bindings_type + "_free); }\n"
931 java_hu_class += "\t/* @internal */\n"
932 java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
933 java_hu_class += f"\t\tconst raw_ty: number = bindings." + struct_name + "_ty_from_ptr(ptr);\n"
934 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"
935 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n"
936 out_c += "\tswitch(obj->tag) {\n"
937 java_hu_class += "\t\tswitch (raw_ty) {\n"
938 java_hu_subclasses = ""
940 out_java += "export class " + struct_name + " {\n"
941 out_java += "\tprotected constructor() {}\n"
943 for var in variant_list:
944 java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
945 java_hu_class += f"\t\t\tcase {var_idx}: "
946 java_hu_class += "return new " + java_hu_type + "_" + var.var_name + "(ptr);\n"
947 out_c += f"\t\tcase {struct_name}_{var.var_name}: return {var_idx};\n"
949 for idx, (field_ty, field_docs) in enumerate(var.fields):
950 java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
951 if field_ty.to_hu_conv is not None:
952 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"
953 hu_conv_body += f"\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
954 hu_conv_body += f"\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
956 hu_conv_body += f"\t\tthis.{field_ty.arg_name} = bindings.{struct_name}_{var.var_name}_get_{field_ty.arg_name}(ptr);\n"
957 java_hu_subclasses += "\t/* @internal */\n"
958 java_hu_subclasses += "\tpublic constructor(ptr: number) {\n\t\tsuper(null, ptr);\n"
959 java_hu_subclasses = java_hu_subclasses + hu_conv_body
960 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
963 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"
964 out_java += self.fn_call_body(struct_name + "_ty_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
965 out_c += ("\t\tdefault: abort();\n")
966 out_c += ("\t}\n}\n")
968 for var in variant_list:
969 for idx, (field_map, _) in enumerate(var.fields):
970 fn_name = f"{struct_name}_{var.var_name}_get_{field_map.arg_name}"
971 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"
972 out_c += "\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n"
973 out_c += f"\tassert(obj->tag == {struct_name}_{var.var_name});\n"
974 if field_map.ret_conv is not None:
975 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
976 if var.tuple_variant:
977 out_c += "obj->" + camel_to_snake(var.var_name)
979 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
980 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
981 out_c += "\treturn " + field_map.ret_conv_name + ";\n"
983 if var.tuple_variant:
984 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + ";\n"
986 out_c += "\treturn " + "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name + ";\n"
988 out_java += self.fn_call_body(fn_name, field_map.c_ty, field_map.java_ty, "ptr: number", "ptr")
989 out_java_enum += java_hu_class
990 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
991 self.obj_defined([java_hu_type], "structs")
992 return (out_java, out_java_enum, out_c)
994 def map_opaque_struct(self, struct_name, struct_doc_comment):
998 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
999 out_opaque_struct_human = f"{self.hu_struct_file_prefix}"
1000 if struct_name.startswith("LDKLocked"):
1001 out_opaque_struct_human += "/** XXX: DO NOT USE THIS - it remains locked until the GC runs (if that ever happens */"
1002 out_opaque_struct_human += f"""
1003 export class {hu_name} extends CommonBase {implementations}{{
1005 public constructor(_dummy: object, ptr: number) {{
1006 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1010 self.obj_defined([hu_name], "structs")
1011 return out_opaque_struct_human
1013 def map_tuple(self, struct_name):
1014 return self.map_opaque_struct(struct_name, "A Tuple")
1016 def map_result(self, struct_name, res_map, err_map):
1017 human_ty = struct_name.replace("LDKCResult", "Result")
1019 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1020 if res_map.java_hu_ty != "void":
1021 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1024 public constructor(_dummy: object, ptr: number) {{
1027 if res_map.java_hu_ty == "void":
1029 elif res_map.to_hu_conv is not None:
1030 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1031 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1032 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1034 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1035 suffixes += "\t}\n}\n"
1037 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1038 if err_map.java_hu_ty != "void":
1039 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1042 public constructor(_dummy: object, ptr: number) {{
1045 if err_map.java_hu_ty == "void":
1047 elif err_map.to_hu_conv is not None:
1048 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1049 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1050 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1052 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1053 suffixes += "\t}\n}"
1055 self.struct_file_suffixes[human_ty] = suffixes
1056 self.obj_defined([human_ty], "structs")
1058 return f"""{self.hu_struct_file_prefix}
1060 export class {human_ty} extends CommonBase {{
1061 protected constructor(_dummy: object, ptr: number) {{
1062 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1065 public static constr_from_ptr(ptr: number): {human_ty} {{
1066 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1067 return new {human_ty}_OK(null, ptr);
1069 return new {human_ty}_Err(null, ptr);
1074 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1075 has_return_value = return_c_ty != 'void'
1076 needs_decoding = return_c_ty in self.wasm_decoding_map
1077 return_statement = 'return nativeResponseValue;'
1078 if not has_return_value:
1079 return_statement = '// debug statements here'
1080 elif needs_decoding:
1081 converter = self.wasm_decoding_map[return_c_ty]
1082 return_statement = f"return {converter}(nativeResponseValue);"
1084 return f"""export function {method_name}({method_argument_string}): {return_java_ty} {{
1085 if(!isWasmInitialized) {{
1086 throw new Error("initializeWasm() must be awaited first!");
1088 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1092 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):
1095 out_java_struct = None
1098 out_c += (self.c_fn_ty_pfx)
1099 out_c += (return_type_info.c_ty)
1100 out_java += (return_type_info.java_ty)
1101 if return_type_info.ret_conv is not None:
1102 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1103 out_java += (" " + method_name + "(")
1104 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1106 method_argument_string = ""
1107 native_call_argument_string = ""
1108 for idx, arg_conv_info in enumerate(argument_types):
1110 method_argument_string += (", ")
1111 native_call_argument_string += ', '
1113 if arg_conv_info.c_ty != "void":
1114 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1115 needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
1116 native_argument = arg_conv_info.arg_name
1118 converter = self.wasm_encoding_map[arg_conv_info.c_ty]
1119 native_argument = f"{converter}({arg_conv_info.arg_name})"
1120 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1121 native_call_argument_string += native_argument
1122 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)
1124 out_java_struct = ""
1126 out_java_struct += ("\t// Skipped " + method_name + "\n")
1129 out_java_struct += (
1130 "\tpublic static constructor_" + meth_n + "(")
1132 out_java_struct += ("\tpublic " + meth_n + "(")
1133 for idx, arg in enumerate(argument_types):
1135 if not takes_self or idx > 1:
1136 out_java_struct += (", ")
1139 if arg.java_ty != "void":
1140 if arg.arg_name in default_constructor_args:
1141 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1142 if explode_idx != 0:
1143 out_java_struct += (", ")
1144 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1146 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1149 if out_java_struct is not None:
1150 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1151 for info in argument_types:
1152 if info.arg_conv is not None:
1153 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1154 if return_type_info.ret_conv is not None:
1155 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1156 elif return_type_info.c_ty != "void":
1157 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1160 if c_call_string is None:
1161 out_c += (method_name + "(")
1163 out_c += (c_call_string)
1164 for idx, info in enumerate(argument_types):
1165 if info.arg_conv_name is not None:
1168 elif c_call_string is not None:
1170 out_c += (info.arg_conv_name)
1172 if return_type_info.ret_conv is not None:
1173 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1176 for info in argument_types:
1177 if info.arg_conv_cleanup is not None:
1178 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1179 if return_type_info.ret_conv is not None:
1180 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1181 elif return_type_info.c_ty != "void":
1182 out_c += ("\n\treturn ret_val;")
1183 out_c += ("\n}\n\n")
1186 out_java_struct += ("\t\t")
1187 if return_type_info.java_ty != "void":
1188 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1189 out_java_struct += ("bindings." + method_name + "(")
1190 for idx, info in enumerate(argument_types):
1192 out_java_struct += (", ")
1193 if idx == 0 and takes_self:
1194 out_java_struct += ("this.ptr")
1195 elif info.arg_name in default_constructor_args:
1196 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1197 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1198 if explode_idx != 0:
1199 out_java_struct += (", ")
1200 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1201 if explode_arg.from_hu_conv is not None:
1202 out_java_struct += (
1203 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1205 out_java_struct += (expl_arg_name)
1206 out_java_struct += (")")
1207 elif info.from_hu_conv is not None:
1208 out_java_struct += (info.from_hu_conv[0])
1210 out_java_struct += (info.arg_name)
1211 out_java_struct += (");\n")
1212 if return_type_info.to_hu_conv is not None:
1214 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1215 return_type_info.to_hu_conv_name) + "\n")
1217 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1219 for idx, info in enumerate(argument_types):
1220 if idx == 0 and takes_self:
1222 elif info.arg_name in default_constructor_args:
1223 for explode_arg in default_constructor_args[info.arg_name]:
1224 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1225 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1226 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1227 expl_arg_name).replace(
1228 "this", return_type_info.to_hu_conv_name) + ";\n")
1229 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1230 if not takes_self and return_type_info.to_hu_conv_name is not None:
1231 out_java_struct += (
1232 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1234 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1236 if return_type_info.to_hu_conv_name is not None:
1237 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1238 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1239 out_java_struct += ("\t\treturn ret;\n")
1240 out_java_struct += ("\t}\n\n")
1242 return (out_java, out_c, out_java_struct)
1245 for struct in self.struct_file_suffixes:
1246 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1247 src.write(self.struct_file_suffixes[struct])
1249 with open(self.outdir + "/bindings.mts", "a") as bindings:
1252 js_invoke = function(obj_ptr: number, fn_id: number, arg1: number, arg2: number, arg3: number, arg4: number, arg5: number, arg6: number, arg7: number, arg8: number, arg9: number, arg10: number) {
1253 const weak: WeakRef<object> = js_objs[obj_ptr];
1254 if (weak == null || weak == undefined) {
1255 console.error("Got function call on unknown/free'd JS object!");
1256 throw new Error("Got function call on unknown/free'd JS object!");
1258 const obj: object = weak.deref();
1259 if (obj == null || obj == undefined) {
1260 console.error("Got function call on GC'd JS object!");
1261 throw new Error("Got function call on GC'd JS object!");
1265 bindings.write("\tswitch (fn_id) {\n")
1266 for f in self.function_ptrs:
1267 bindings.write(f"\t\tcase {str(f)}: fn = Object.getOwnPropertyDescriptor(obj, \"{self.function_ptrs[f][1]}\"); break;\n")
1269 bindings.write("""\t\tdefault:
1270 console.error("Got unknown function call from C!");
1271 throw new Error("Got unknown function call from C!");
1273 if (fn == null || fn == undefined) {
1274 console.error("Got function call on incorrect JS object!");
1275 throw new Error("Got function call on incorrect JS object!");
1277 return fn.value.bind(obj)(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);