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.c_type_map = dict(
18 uint8_t = ['number', 'Uint8Array'],
19 uint16_t = ['number', 'Uint16Array'],
20 uint32_t = ['number', 'Uint32Array'],
21 uint64_t = ['number'],
24 self.wasm_decoding_map = dict(
25 int8_tArray = 'decodeUint8Array'
28 self.wasm_encoding_map = dict(
29 int8_tArray = 'encodeUint8Array',
32 self.to_hu_conv_templates = dict(
33 ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
34 default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
37 self.bindings_header = self.wasm_import_header(target) + """
38 export class VecOrSliceDef {
39 public dataptr: number;
40 public datalen: number;
41 public stride: number;
42 public constructor(dataptr: number, datalen: number, stride: number) {
43 this.dataptr = dataptr;
44 this.datalen = datalen;
52 System.loadLibrary(\"lightningjni\");
53 init(java.lang.Enum.class, VecOrSliceDef.class);
57 static native void init(java.lang.Class c, java.lang.Class slicedef);
58 static native void init_class_cache();
60 public static native boolean deref_bool(long ptr);
61 public static native long deref_long(long ptr);
62 public static native void free_heap_ptr(long ptr);
63 public static native byte[] read_bytes(long ptr, long len);
64 public static native byte[] get_u8_slice_bytes(long slice_ptr);
65 public static native long bytes_to_u8_vec(byte[] bytes);
66 public static native long new_txpointer_copy_data(byte[] txdata);
67 public static native void txpointer_free(long ptr);
68 public static native byte[] txpointer_get_buffer(long ptr);
69 public static native long vec_slice_len(long vec);
70 public static native long new_empty_slice_vec();
75 self.bindings_version_file = ""
77 self.bindings_footer = ""
79 self.common_base = """
80 function freer(f: () => void) { f() }
81 const finalizer = new FinalizationRegistry(freer);
82 function get_freeer(ptr: number, free_fn: (number) => void) {
88 export default class CommonBase {
89 protected ptr: number;
90 protected ptrs_to: object[] = [];
91 protected constructor(ptr: number, free_fn: (ptr: number) => void) {
93 if (Number.isFinite(ptr) && ptr != 0){
94 finalizer.register(this, get_freeer(ptr, free_fn));
97 // In Java, protected means "any subclass can access fields on any other subclass'"
98 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
99 // To work around this, we add accessors for other instances' protected fields here.
100 protected static add_ref_from(holder: CommonBase, referent: object) {
101 holder.ptrs_to.push(referent);
103 protected static get_ptr_of(o: CommonBase) {
106 protected static set_null_skip_free(o: CommonBase) {
108 finalizer.unregister(o);
113 self.txout_defn = """export class TxOut extends CommonBase {
114 /** The script_pubkey in this output */
115 public script_pubkey: Uint8Array;
116 /** The value, in satoshis, of this output */
117 public value: number;
120 public constructor(_dummy: object, ptr: number) {
121 super(ptr, bindings.TxOut_free);
122 this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr);
123 this.value = bindings.TxOut_get_value(ptr);
125 public constructor_new(value: number, script_pubkey: Uint8Array): TxOut {
126 return new TxOut(null, bindings.TxOut_new(script_pubkey, value));
129 self.obj_defined(["TxOut"], "structs")
131 self.c_file_pfx = """#include "js-wasm.h"
132 #include <stdatomic.h>
133 #include <lightning.h>
135 // These should be provided...somehow...
136 void *memset(void *s, int c, size_t n);
137 void *memcpy(void *dest, const void *src, size_t n);
138 int memcmp(const void *s1, const void *s2, size_t n);
140 void __attribute__((noreturn)) abort(void);
141 static inline void assert(bool expression) {
142 if (!expression) { abort(); }
147 self.c_file_pfx = self.c_file_pfx + """
148 void *malloc(size_t size);
149 void free(void *ptr);
151 #define MALLOC(a, _) malloc(a)
152 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
153 #define DO_ASSERT(a) (void)(a)
155 #define CHECK_ACCESS(p)
156 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
159 self.c_file_pfx = self.c_file_pfx + """
160 // Always run a, then assert it is true:
161 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
162 // Assert a is true or do nothing
163 #define CHECK(a) DO_ASSERT(a)
165 // Running a leak check across all the allocations and frees of the JDK is a mess,
166 // so instead we implement our own naive leak checker here, relying on the -wrap
167 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
168 // and free'd in Rust or C across the generated bindings shared library.
171 typedef struct allocation {
172 struct allocation* next;
174 const char* struct_name;
176 static allocation* allocation_ll = NULL;
178 void* __real_malloc(size_t len);
179 void* __real_calloc(size_t nmemb, size_t len);
180 static void new_allocation(void* res, const char* struct_name) {
181 allocation* new_alloc = __real_malloc(sizeof(allocation));
182 new_alloc->ptr = res;
183 new_alloc->struct_name = struct_name;
184 new_alloc->next = allocation_ll;
185 allocation_ll = new_alloc;
187 static void* MALLOC(size_t len, const char* struct_name) {
188 void* res = __real_malloc(len);
189 new_allocation(res, struct_name);
192 void __real_free(void* ptr);
193 static void alloc_freed(void* ptr) {
194 allocation* p = NULL;
195 allocation* it = allocation_ll;
196 while (it->ptr != ptr) {
197 p = it; it = it->next;
199 //XXX: fprintf(stderr, "Tried to free unknown pointer %p\\n", ptr);
200 return; // addrsan should catch malloc-unknown and print more info than we have
203 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
204 DO_ASSERT(it->ptr == ptr);
207 static void FREE(void* ptr) {
208 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
213 static void CHECK_ACCESS(const void* ptr) {
214 allocation* it = allocation_ll;
215 while (it->ptr != ptr) {
218 return; // addrsan should catch malloc-unknown and print more info than we have
222 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
223 if (v.is_owned && v.inner != NULL) { \\
224 const void *p = __unmangle_inner_ptr(v.inner); \\
230 void* __wrap_malloc(size_t len) {
231 void* res = __real_malloc(len);
232 new_allocation(res, "malloc call");
235 void* __wrap_calloc(size_t nmemb, size_t len) {
236 void* res = __real_calloc(nmemb, len);
237 new_allocation(res, "calloc call");
240 void __wrap_free(void* ptr) {
241 if (ptr == NULL) return;
246 void* __real_realloc(void* ptr, size_t newlen);
247 void* __wrap_realloc(void* ptr, size_t len) {
248 if (ptr != NULL) alloc_freed(ptr);
249 void* res = __real_realloc(ptr, len);
250 new_allocation(res, "realloc call");
253 void __wrap_reallocarray(void* ptr, size_t new_sz) {
254 // Rust doesn't seem to use reallocarray currently
258 void __attribute__((destructor)) check_leaks() {
259 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
260 //XXX: fprintf(stderr, "%s %p remains\\n", a->struct_name, a->ptr);
262 DO_ASSERT(allocation_ll == NULL);
265 self.c_file_pfx = self.c_file_pfx + """
266 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
267 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
268 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
269 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
271 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
273 #define DECL_ARR_TYPE(ty, name) \\
274 struct name##array { \\
278 typedef struct name##array * name##Array; \\
279 static inline name##Array init_##name##Array(size_t arr_len) { \\
280 name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \\
281 arr->arr_len = arr_len; \\
285 DECL_ARR_TYPE(int64_t, int64_t);
286 DECL_ARR_TYPE(int8_t, int8_t);
287 DECL_ARR_TYPE(uint32_t, uint32_t);
288 DECL_ARR_TYPE(void*, ptr);
289 DECL_ARR_TYPE(char, char);
290 typedef charArray jstring;
292 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
293 charArray arr = init_charArray(len);
294 memcpy(arr->elems, chars, len);
297 static inline LDKStr str_ref_to_owned_c(const jstring str) {
298 char* newchars = MALLOC(str->arr_len + 1, "String chars");
299 memcpy(newchars, str->elems, str->arr_len);
300 newchars[str->arr_len] = 0;
304 .chars_is_owned = true
309 typedef bool jboolean;
311 uint32_t __attribute__((visibility("default"))) TS_malloc(uint32_t size) {
312 return (uint32_t)MALLOC(size, "JS-Called malloc");
314 void __attribute__((visibility("default"))) TS_free(uint32_t ptr) {
319 self.c_version_file = ""
321 self.hu_struct_file_prefix = """
322 import CommonBase from './CommonBase.mjs';
323 import * as bindings from '../bindings.mjs'
324 import * as InternalUtils from '../InternalUtils.mjs'
327 self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n"
328 self.util_fn_sfx = "}"
329 self.c_fn_ty_pfx = ""
330 self.file_ext = ".mts"
331 self.ptr_c_ty = "uint32_t"
332 self.ptr_native_ty = "number"
333 self.result_c_ty = "uint32_t"
334 self.ptr_arr = "ptrArray"
335 self.is_arr_some_check = ("", " != 0")
336 self.get_native_arr_len_call = ("", "->arr_len")
338 with open(outdir + "/InternalUtils.mts", "w") as f:
339 f.write("export function check_arr_len(arr: Uint8Array, len: number): Uint8Array {\n")
340 f.write("\tif (arr.length != len) { throw new Error(\"Expected array of length \" + len + \"got \" + arr.length); }\n")
341 f.write("\treturn arr;\n")
344 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
346 def create_native_arr_call(self, arr_len, ty_info):
347 if ty_info.c_ty == "ptrArray":
348 assert ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array")
349 return "init_" + ty_info.c_ty + "(" + arr_len + ")"
350 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
351 if ty_info.c_ty == "int8_tArray":
352 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
355 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
356 if ty_info.c_ty == "int8_tArray":
358 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + arr_len + ")"
359 if ty_info.c_ty == "ptrArray":
360 return "(void*) " + arr_name + "->elems"
363 return arr_name + "->elems"
364 def get_native_arr_elem(self, arr_name, idxc, ty_info):
365 assert False # Only called if above is None
366 def get_native_arr_ptr_call(self, ty_info):
367 if ty_info.subty is not None:
368 return "(" + ty_info.subty.c_ty + "*)(", " + 4)"
369 return "(" + ty_info.c_ty + "*)(", " + 4)"
370 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
372 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
373 if ty_info.c_ty == "int8_tArray":
378 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
379 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
381 def str_ref_to_native_call(self, var_name, str_len):
382 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
383 def str_ref_to_c_call(self, var_name):
384 return "str_ref_to_owned_c(" + var_name + ")"
386 def c_fn_name_define_pfx(self, fn_name, have_args):
387 return " __attribute__((visibility(\"default\"))) TS_" + fn_name + "("
389 def wasm_import_header(self, target):
391 const imports: any = {};
394 imports.env.tableBase = 0;
395 imports.env.table = new WebAssembly.Table({initial: 4, element: 'anyfunc'});
397 imports.env["abort"] = function () {
398 console.error("ABORT");
400 imports.env["js_invoke_function"] = function(fn: number, arg1: number, arg2: number, arg3: number, arg4: number, arg5: number, arg6: number, arg7: number, arg8: number, arg9: number, arg10: number) {
401 console.log('function called from wasm:', fn, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
403 imports.env["js_free_function_ptr"] = function(fn: number) {
404 console.log("function ptr free'd from wasm:", fn);
407 imports.wasi_snapshot_preview1 = {
409 console.log("ABORT");
411 "random_get" : () => {
412 console.log("RAND GET");
414 "environ_sizes_get" : () => {
415 console.log("wasi_snapshot_preview1:environ_sizes_get");
417 "proc_exit" : () => {
418 console.log("wasi_snapshot_preview1:proc_exit");
420 "environ_get" : () => {
421 console.log("wasi_snapshot_preview1:environ_get");
426 let isWasmInitialized: boolean = false;
429 if target == Target.NODEJS:
430 res += """import * as fs from 'fs';
431 export async function initializeWasm(path) {
432 const source = fs.readFileSync(path);
433 const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports);
434 wasm = wasmInstance.exports;
435 isWasmInitialized = true;
440 export async function initializeWasm(uri) {
441 const stream = fetch(uri);
442 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
443 wasm = wasmInstance.exports;
444 isWasmInitialized = true;
454 const nextMultipleOfFour = (value: number) => {
455 return Math.ceil(value / 4) * 4;
458 const encodeUint8Array = (inputArray) => {
459 const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
460 const arrayLengthView = new Uint32Array(wasm.memory.buffer, cArrayPointer, 1);
461 arrayLengthView[0] = inputArray.length;
462 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 4, inputArray.length);
463 arrayMemoryView.set(inputArray);
464 return cArrayPointer;
467 const encodeUint32Array = (inputArray) => {
468 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
469 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer, inputArray.length);
470 arrayMemoryView.set(inputArray, 1);
471 arrayMemoryView[0] = inputArray.length;
472 return cArrayPointer;
475 const getArrayLength = (arrayPointer) => {
476 const arraySizeViewer = new Uint32Array(
477 wasm.memory.buffer, // value
478 arrayPointer, // offset
481 return arraySizeViewer[0];
483 const decodeUint8Array = (arrayPointer, free = true) => {
484 const arraySize = getArrayLength(arrayPointer);
485 const actualArrayViewer = new Uint8Array(
486 wasm.memory.buffer, // value
487 arrayPointer + 4, // offset (ignoring length bytes)
488 arraySize // uint8 count
490 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
491 // will free the underlying memory when it becomes unreachable instead of copying here.
492 const actualArray = actualArrayViewer.slice(0, arraySize);
494 wasm.TS_free(arrayPointer);
498 const decodeUint32Array = (arrayPointer, free = true) => {
499 const arraySize = getArrayLength(arrayPointer);
500 const actualArrayViewer = new Uint32Array(
501 wasm.memory.buffer, // value
502 arrayPointer + 4, // offset (ignoring length bytes)
503 arraySize // uint32 count
505 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
506 // will free the underlying memory when it becomes unreachable instead of copying here.
507 const actualArray = actualArrayViewer.slice(0, arraySize);
509 wasm.TS_free(arrayPointer);
514 const encodeString = (string) => {
515 // make malloc count divisible by 4
516 const memoryNeed = nextMultipleOfFour(string.length + 1);
517 const stringPointer = wasm.TS_malloc(memoryNeed);
518 const stringMemoryView = new Uint8Array(
519 wasm.memory.buffer, // value
520 stringPointer, // offset
521 string.length + 1 // length
523 for (let i = 0; i < string.length; i++) {
524 stringMemoryView[i] = string.charCodeAt(i);
526 stringMemoryView[string.length] = 0;
527 return stringPointer;
530 const decodeString = (stringPointer, free = true) => {
531 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer);
535 while (memoryView[cursor] !== 0) {
536 result += String.fromCharCode(memoryView[cursor]);
541 wasm.wasm_free(stringPointer);
551 def var_decl_statement(self, ty_string, var_name, statement):
552 return "const " + var_name + ": " + ty_string + " = " + statement
554 def for_n_in_range(self, n, minimum, maximum):
555 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
556 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
557 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
559 def get_ptr(self, var):
560 return "CommonBase.get_ptr_of(" + var + ")"
561 def set_null_skip_free(self, var):
562 return "CommonBase.set_null_skip_free(" + var + ");"
564 def add_ref(self, holder, referent):
565 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
567 def obj_defined(self, struct_names, folder):
568 with open(self.outdir + "/index.mts", 'a') as index:
569 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
570 with open(self.outdir + "/imports.mts.part", 'a') as imports:
571 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
573 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
574 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
575 out_c = out_c + "\tswitch (ord) {\n"
578 out_typescript_enum_fields = ""
580 for var, var_docs in variants:
581 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
583 if var_docs is not None:
584 out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
585 out_typescript_enum_fields += f"{var},\n\t\t\t\t"
586 out_c = out_c + "\t}\n"
587 out_c = out_c + "\tabort();\n"
588 out_c = out_c + "}\n"
590 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
591 out_c = out_c + "\tswitch (val) {\n"
593 for var, _ in variants:
594 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
596 out_c = out_c + "\t\tdefault: abort();\n"
597 out_c = out_c + "\t}\n"
598 out_c = out_c + "}\n"
600 out_typescript = f"""
601 export enum {struct_name} {{
602 {out_typescript_enum_fields}
605 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
606 self.obj_defined([struct_name], "enums")
607 return (out_c, out_typescript_enum, out_typescript)
609 def c_unitary_enum_to_native_call(self, ty_info):
610 return (ty_info.rust_obj + "_to_js(", ")")
611 def native_unitary_enum_to_c_call(self, ty_info):
612 return (ty_info.rust_obj + "_from_js(", ")")
614 def c_complex_enum_pass_ty(self, struct_name):
617 def c_constr_native_complex_enum(self, struct_name, variant, c_params):
618 ret = "0 /* " + struct_name + " - " + variant + " */"
619 for param in c_params:
620 ret = ret + "; (void) " + param
623 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
624 out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
626 constructor_arguments = ""
627 super_instantiator = ""
628 pointer_to_adder = ""
629 impl_constructor_arguments = ""
630 for var in flattened_field_var_conversions:
631 if isinstance(var, ConvInfo):
632 constructor_arguments += f", {first_to_lower(var.arg_name)}?: {var.java_hu_ty}"
633 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
634 if var.from_hu_conv is not None:
635 super_instantiator += ", " + var.from_hu_conv[0]
636 if var.from_hu_conv[1] != "":
637 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
639 super_instantiator += ", " + first_to_lower(var.arg_name)
641 constructor_arguments += f", {first_to_lower(var[1])}?: bindings.{var[0]}"
642 super_instantiator += ", " + first_to_lower(var[1])
643 pointer_to_adder += "\t\t\tthis.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
644 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}.{var[0].replace('LDK', '')}Interface"
646 # BUILD INTERFACE METHODS
647 out_java_interface = ""
648 out_interface_implementation_overrides = ""
650 for fn_line in field_function_lines:
651 java_method_descriptor = ""
652 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
653 out_java_interface += "\t" + fn_line.fn_name + "("
654 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
656 for idx, arg_conv_info in enumerate(fn_line.args_ty):
658 out_java_interface += ", "
659 out_interface_implementation_overrides += ", "
660 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
661 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
662 java_method_descriptor += arg_conv_info.java_fn_ty_arg
663 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
664 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
665 java_methods.append((fn_line.fn_name, java_method_descriptor))
667 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
669 for arg_info in fn_line.args_ty:
670 if arg_info.to_hu_conv is not None:
671 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
673 if fn_line.ret_ty_info.java_ty != "void":
674 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
676 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
678 for idx, arg_info in enumerate(fn_line.args_ty):
680 out_interface_implementation_overrides += ", "
681 if arg_info.to_hu_conv_name is not None:
682 out_interface_implementation_overrides += arg_info.to_hu_conv_name
684 out_interface_implementation_overrides += arg_info.arg_name
686 out_interface_implementation_overrides += ");\n"
687 if fn_line.ret_ty_info.java_ty != "void":
688 if fn_line.ret_ty_info.from_hu_conv is not None:
689 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"
690 if fn_line.ret_ty_info.from_hu_conv[1] != "":
691 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"
692 #if fn_line.ret_ty_info.rust_obj in result_types:
693 # XXX: We need to handle this in conversion logic so that its cross-language!
694 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
695 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
696 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
698 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
699 out_interface_implementation_overrides += f"\t\t\t}},\n"
701 trait_constructor_arguments = ""
702 for var in field_var_conversions:
703 if isinstance(var, ConvInfo):
704 trait_constructor_arguments += ", " + var.arg_name
706 trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl"
707 for suparg in var[2]:
708 if isinstance(suparg, ConvInfo):
709 trait_constructor_arguments += ", " + suparg.arg_name
711 trait_constructor_arguments += ", " + suparg[1]
712 trait_constructor_arguments += ").bindings_instance"
713 for suparg in var[2]:
714 if isinstance(suparg, ConvInfo):
715 trait_constructor_arguments += ", " + suparg.arg_name
717 trait_constructor_arguments += ", " + suparg[1]
719 out_typescript_human = f"""
720 {self.hu_struct_file_prefix}
722 export interface {struct_name.replace("LDK", "")}Interface {{
723 {out_java_interface}}}
725 class {struct_name}Holder {{
726 held: {struct_name.replace("LDK", "")};
729 export class {struct_name.replace("LDK","")} extends CommonBase {{
730 private bindings_instance?: bindings.{struct_name};
732 constructor(ptr?: number, arg?: bindings.{struct_name}{constructor_arguments}) {{
733 if (Number.isFinite(ptr)) {{
734 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
735 this.bindings_instance = null;
737 // TODO: private constructor instantiation
738 super(bindings.{struct_name}_new(arg{super_instantiator}), bindings.{struct_name.replace("LDK","")}_free);
739 this.ptrs_to.push(arg);
740 {pointer_to_adder} }}
743 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
744 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
745 let structImplementation = {{
746 {out_interface_implementation_overrides} }} as bindings.{struct_name};
747 impl_holder.held = new {struct_name.replace("LDK", "")} (null, structImplementation{trait_constructor_arguments});
748 return impl_holder.held;
752 out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
754 for fn_line in field_function_lines:
755 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
756 out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
758 for idx, arg_conv_info in enumerate(fn_line.args_ty):
760 out_typescript_bindings = out_typescript_bindings + ", "
761 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
763 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
765 out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
767 out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
768 for var in flattened_field_var_conversions:
769 if isinstance(var, ConvInfo):
770 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
772 out_typescript_bindings += f", {var[1]}: {var[0]}"
774 out_typescript_bindings += f"""): number {{
775 throw new Error('unimplemented'); // TODO: bind to WASM
779 out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
781 # Now that we've written out our java code (and created java_meths), generate C
782 out_c = "typedef struct " + struct_name + "_JCalls {\n"
783 out_c = out_c + "\tatomic_size_t refcnt;\n"
784 for var in flattened_field_var_conversions:
785 if isinstance(var, ConvInfo):
786 # We're a regular ol' field
790 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
791 for fn in field_function_lines:
792 if fn.fn_name != "free" and fn.fn_name != "cloned":
793 out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n"
794 out_c = out_c + "} " + struct_name + "_JCalls;\n"
796 for fn_line in field_function_lines:
797 if fn_line.fn_name == "free":
798 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
799 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
800 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
801 for fn in field_function_lines:
802 if fn.fn_name != "free" and fn.fn_name != "cloned":
803 out_c = out_c + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n"
804 out_c = out_c + "\t\tFREE(j_calls);\n"
805 out_c = out_c + "\t}\n}\n"
807 for idx, fn_line in enumerate(field_function_lines):
808 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
809 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
810 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
811 if fn_line.self_is_const:
812 out_c = out_c + "const void* this_arg"
814 out_c = out_c + "void* this_arg"
816 for idx, arg in enumerate(fn_line.args_ty):
817 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
819 out_c = out_c + ") {\n"
820 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
822 for arg_info in fn_line.args_ty:
823 if arg_info.ret_conv is not None:
824 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
825 out_c = out_c + arg_info.arg_name
826 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
828 if fn_line.ret_ty_info.c_ty.endswith("Array"):
829 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
830 out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
831 elif fn_line.ret_ty_info.java_ty == "void":
832 out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
833 elif fn_line.ret_ty_info.java_ty == "String":
834 out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
835 elif not fn_line.ret_ty_info.passed_as_ptr:
836 out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
838 out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
840 for idx, arg_info in enumerate(fn_line.args_ty):
841 if arg_info.ret_conv is not None:
842 out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
844 out_c = out_c + ", (uint32_t)" + arg_info.arg_name
845 out_c = out_c + ");\n"
846 if fn_line.ret_ty_info.arg_conv is not None:
847 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"
849 out_c = out_c + "}\n"
851 # Write out a clone function whether we need one or not, as we use them in moving to rust
852 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
853 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
854 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
855 for var in field_var_conversions:
856 if not isinstance(var, ConvInfo):
857 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
858 out_c = out_c + "}\n"
860 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o"
861 for var in flattened_field_var_conversions:
862 if isinstance(var, ConvInfo):
863 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
865 out_c = out_c + ", /*TODO: JS Object Reference */void* " + var[1]
866 out_c = out_c + ") {\n"
868 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
869 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
870 out_c = out_c + "\t//TODO: Assign calls->o from o\n"
872 for (fn_name, java_meth_descr) in java_meths:
873 if fn_name != "free" and fn_name != "cloned":
874 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
875 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
877 for var in flattened_field_var_conversions:
878 if isinstance(var, ConvInfo) and var.arg_conv is not None:
879 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
880 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
881 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
882 for fn_line in field_function_lines:
883 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
884 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
885 elif fn_line.fn_name == "free":
886 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
888 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
889 for var in field_var_conversions:
890 if isinstance(var, ConvInfo):
891 if var.arg_conv_name is not None:
892 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
893 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
895 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
896 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
898 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
899 for suparg in var[2]:
900 if isinstance(suparg, ConvInfo):
901 out_c += ", " + suparg.arg_name
903 out_c += ", " + suparg[1]
905 out_c = out_c + "\t};\n"
906 for var in flattened_field_var_conversions:
907 if not isinstance(var, ConvInfo):
908 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
909 out_c = out_c + "\treturn ret;\n"
910 out_c = out_c + "}\n"
912 out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_define_pfx(struct_name + "_new", True) + "/*TODO: JS Object Reference */void* o"
913 for var in flattened_field_var_conversions:
914 if isinstance(var, ConvInfo):
915 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
917 out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1]
918 out_c = out_c + ") {\n"
919 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
920 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
921 for var in flattened_field_var_conversions:
922 if isinstance(var, ConvInfo):
923 out_c = out_c + ", " + var.arg_name
925 out_c = out_c + ", " + var[1]
926 out_c = out_c + ");\n"
927 out_c = out_c + "\treturn (long)res_ptr;\n"
928 out_c = out_c + "}\n"
930 return (out_typescript_bindings, out_typescript_human, out_c)
932 def trait_struct_inc_refcnt(self, ty_info):
935 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
936 bindings_type = struct_name.replace("LDK", "")
937 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
943 out_java_enum += (self.hu_struct_file_prefix)
946 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
947 java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr, bindings." + bindings_type + "_free); }\n"
948 java_hu_class += "\t/* @internal */\n"
949 java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
950 java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n"
951 java_hu_subclasses = ""
953 out_java += "\texport class " + struct_name + " {\n"
954 out_java += "\t\tprotected constructor() {}\n"
956 for var in variant_list:
957 java_subclasses += "\texport class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n"
958 java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
959 java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n"
960 java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n"
961 init_meth_params = ""
963 for idx, (field_ty, field_docs) in enumerate(var.fields):
964 java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
965 if field_ty.to_hu_conv is not None:
966 hu_conv_body = hu_conv_body + "\t\tconst " + field_ty.arg_name + f": {field_ty.java_ty} = obj." + field_ty.arg_name + ";\n"
967 hu_conv_body = hu_conv_body + "\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
968 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
970 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
972 init_meth_params += ", "
973 init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty
974 java_subclasses += "\t\tconstructor(" + init_meth_params + ") { super(); }\n"
975 java_subclasses += "\t}\n"
976 java_hu_class += "\t\t}\n"
977 java_hu_subclasses += "\t/* @internal */\n"
978 java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
979 java_hu_subclasses = java_hu_subclasses + hu_conv_body
980 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
981 out_java += ("\t}\n")
982 out_java += java_subclasses
983 java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n"
984 out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
986 out_c += (self.c_fn_ty_pfx + self.c_complex_enum_pass_ty(struct_name) + self.c_fn_name_define_pfx(struct_name + "_ref_from_ptr", True) + self.ptr_c_ty + " ptr) {\n")
987 out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n")
988 out_c += ("\tswitch(obj->tag) {\n")
989 for var in variant_list:
990 out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
992 for idx, (field_map, _) in enumerate(var.fields):
993 if field_map.ret_conv is not None:
994 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
995 if var.tuple_variant:
996 out_c += "obj->" + camel_to_snake(var.var_name)
998 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
999 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
1000 c_params.append(field_map.ret_conv_name)
1002 if var.tuple_variant:
1003 c_params.append("obj->" + camel_to_snake(var.var_name))
1005 c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
1006 out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
1007 out_c += ("\t\t}\n")
1008 out_c += ("\t\tdefault: abort();\n")
1009 out_c += ("\t}\n}\n")
1010 out_java_enum += java_hu_class
1011 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1012 self.obj_defined([java_hu_type], "structs")
1013 return (out_java, out_java_enum, out_c)
1015 def map_opaque_struct(self, struct_name, struct_doc_comment):
1016 implementations = ""
1018 if struct_name.startswith("LDKLocked"):
1019 return "NOT IMPLEMENTED"
1021 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1022 out_opaque_struct_human = f"""{self.hu_struct_file_prefix}
1024 export class {hu_name} extends CommonBase {implementations}{{
1026 public constructor(_dummy: object, ptr: number) {{
1027 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1031 self.obj_defined([hu_name], "structs")
1032 return out_opaque_struct_human
1034 def map_tuple(self, struct_name):
1035 return self.map_opaque_struct(struct_name, "A Tuple")
1037 def map_result(self, struct_name, res_map, err_map):
1038 human_ty = struct_name.replace("LDKCResult", "Result")
1040 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1041 if res_map.java_hu_ty != "void":
1042 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1045 public constructor(_dummy: object, ptr: number) {{
1048 if res_map.java_hu_ty == "void":
1050 elif res_map.to_hu_conv is not None:
1051 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1052 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1053 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1055 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1056 suffixes += "\t}\n}\n"
1058 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1059 if err_map.java_hu_ty != "void":
1060 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1063 public constructor(_dummy: object, ptr: number) {{
1066 if err_map.java_hu_ty == "void":
1068 elif err_map.to_hu_conv is not None:
1069 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1070 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1071 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1073 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1074 suffixes += "\t}\n}"
1076 self.struct_file_suffixes[human_ty] = suffixes
1077 self.obj_defined([human_ty], "structs")
1079 return f"""{self.hu_struct_file_prefix}
1081 export class {human_ty} extends CommonBase {{
1082 protected constructor(_dummy: object, ptr: number) {{
1083 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1086 public static constr_from_ptr(ptr: number): {human_ty} {{
1087 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1088 return new {human_ty}_OK(null, ptr);
1090 return new {human_ty}_Err(null, ptr);
1095 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1096 has_return_value = return_c_ty != 'void'
1097 needs_decoding = return_c_ty in self.wasm_decoding_map
1098 return_statement = 'return nativeResponseValue;'
1099 if not has_return_value:
1100 return_statement = '// debug statements here'
1101 elif needs_decoding:
1102 converter = self.wasm_decoding_map[return_c_ty]
1103 return_statement = f"return {converter}(nativeResponseValue);"
1105 return f"""\texport function {method_name}({method_argument_string}): {return_java_ty} {{
1106 if(!isWasmInitialized) {{
1107 throw new Error("initializeWasm() must be awaited first!");
1109 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1113 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):
1116 out_java_struct = None
1119 out_c += (self.c_fn_ty_pfx)
1120 out_c += (return_type_info.c_ty)
1121 out_java += (return_type_info.java_ty)
1122 if return_type_info.ret_conv is not None:
1123 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1124 out_java += (" " + method_name + "(")
1125 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1127 method_argument_string = ""
1128 native_call_argument_string = ""
1129 for idx, arg_conv_info in enumerate(argument_types):
1131 method_argument_string += (", ")
1132 native_call_argument_string += ', '
1134 if arg_conv_info.c_ty != "void":
1135 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1136 needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
1137 native_argument = arg_conv_info.arg_name
1139 converter = self.wasm_encoding_map[arg_conv_info.c_ty]
1140 native_argument = f"{converter}({arg_conv_info.arg_name})"
1141 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1142 native_call_argument_string += native_argument
1143 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)
1145 out_java_struct = ""
1147 out_java_struct += ("\t// Skipped " + method_name + "\n")
1150 out_java_struct += (
1151 "\tpublic static constructor_" + meth_n + "(")
1153 out_java_struct += ("\tpublic " + meth_n + "(")
1154 for idx, arg in enumerate(argument_types):
1156 if not takes_self or idx > 1:
1157 out_java_struct += (", ")
1160 if arg.java_ty != "void":
1161 if arg.arg_name in default_constructor_args:
1162 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1163 if explode_idx != 0:
1164 out_java_struct += (", ")
1165 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1167 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1170 if out_java_struct is not None:
1171 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1172 for info in argument_types:
1173 if info.arg_conv is not None:
1174 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1175 if return_type_info.ret_conv is not None:
1176 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1177 elif return_type_info.c_ty != "void":
1178 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1181 if c_call_string is None:
1182 out_c += (method_name + "(")
1184 out_c += (c_call_string)
1185 for idx, info in enumerate(argument_types):
1186 if info.arg_conv_name is not None:
1189 elif c_call_string is not None:
1191 out_c += (info.arg_conv_name)
1193 if return_type_info.ret_conv is not None:
1194 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1197 for info in argument_types:
1198 if info.arg_conv_cleanup is not None:
1199 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1200 if return_type_info.ret_conv is not None:
1201 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1202 elif return_type_info.c_ty != "void":
1203 out_c += ("\n\treturn ret_val;")
1204 out_c += ("\n}\n\n")
1207 out_java_struct += ("\t\t")
1208 if return_type_info.java_ty != "void":
1209 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1210 out_java_struct += ("bindings." + method_name + "(")
1211 for idx, info in enumerate(argument_types):
1213 out_java_struct += (", ")
1214 if idx == 0 and takes_self:
1215 out_java_struct += ("this.ptr")
1216 elif info.arg_name in default_constructor_args:
1217 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1218 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1219 if explode_idx != 0:
1220 out_java_struct += (", ")
1221 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1222 if explode_arg.from_hu_conv is not None:
1223 out_java_struct += (
1224 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1226 out_java_struct += (expl_arg_name)
1227 out_java_struct += (")")
1228 elif info.from_hu_conv is not None:
1229 out_java_struct += (info.from_hu_conv[0])
1231 out_java_struct += (info.arg_name)
1232 out_java_struct += (");\n")
1233 if return_type_info.to_hu_conv is not None:
1235 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1236 return_type_info.to_hu_conv_name) + "\n")
1238 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1240 for idx, info in enumerate(argument_types):
1241 if idx == 0 and takes_self:
1243 elif info.arg_name in default_constructor_args:
1244 for explode_arg in default_constructor_args[info.arg_name]:
1245 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1246 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1247 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1248 expl_arg_name).replace(
1249 "this", return_type_info.to_hu_conv_name) + ";\n")
1250 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1251 if not takes_self and return_type_info.to_hu_conv_name is not None:
1252 out_java_struct += (
1253 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1255 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1257 if return_type_info.to_hu_conv_name is not None:
1258 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1259 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1260 out_java_struct += ("\t\treturn ret;\n")
1261 out_java_struct += ("\t}\n\n")
1263 return (out_java, out_c, out_java_struct)
1266 for struct in self.struct_file_suffixes:
1267 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1268 src.write(self.struct_file_suffixes[struct])