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 constr_hu_array(self, ty_info, arr_len):
552 return "new Array(" + arr_len + ").fill(null)"
554 def var_decl_statement(self, ty_string, var_name, statement):
555 return "const " + var_name + ": " + ty_string + " = " + statement
557 def for_n_in_range(self, n, minimum, maximum):
558 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
559 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
560 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
562 def get_ptr(self, var):
563 return "CommonBase.get_ptr_of(" + var + ")"
564 def set_null_skip_free(self, var):
565 return "CommonBase.set_null_skip_free(" + var + ");"
567 def add_ref(self, holder, referent):
568 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
570 def obj_defined(self, struct_names, folder):
571 with open(self.outdir + "/index.mts", 'a') as index:
572 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
573 with open(self.outdir + "/imports.mts.part", 'a') as imports:
574 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
576 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
577 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
578 out_c = out_c + "\tswitch (ord) {\n"
581 out_typescript_enum_fields = ""
583 for var, var_docs in variants:
584 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
586 if var_docs is not None:
587 out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
588 out_typescript_enum_fields += f"{var},\n\t\t\t\t"
589 out_c = out_c + "\t}\n"
590 out_c = out_c + "\tabort();\n"
591 out_c = out_c + "}\n"
593 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
594 out_c = out_c + "\tswitch (val) {\n"
596 for var, _ in variants:
597 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
599 out_c = out_c + "\t\tdefault: abort();\n"
600 out_c = out_c + "\t}\n"
601 out_c = out_c + "}\n"
603 out_typescript = f"""
604 export enum {struct_name} {{
605 {out_typescript_enum_fields}
608 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
609 self.obj_defined([struct_name], "enums")
610 return (out_c, out_typescript_enum, out_typescript)
612 def c_unitary_enum_to_native_call(self, ty_info):
613 return (ty_info.rust_obj + "_to_js(", ")")
614 def native_unitary_enum_to_c_call(self, ty_info):
615 return (ty_info.rust_obj + "_from_js(", ")")
617 def c_complex_enum_pass_ty(self, struct_name):
620 def c_constr_native_complex_enum(self, struct_name, variant, c_params):
621 ret = "0 /* " + struct_name + " - " + variant + " */"
622 for param in c_params:
623 ret = ret + "; (void) " + param
626 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
627 out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
629 super_instantiator = ""
630 bindings_instantiator = ""
631 pointer_to_adder = ""
632 impl_constructor_arguments = ""
633 for var in flattened_field_var_conversions:
634 if isinstance(var, ConvInfo):
635 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
636 super_instantiator += first_to_lower(var.arg_name) + ", "
637 if var.from_hu_conv is not None:
638 bindings_instantiator += ", " + var.from_hu_conv[0]
639 if var.from_hu_conv[1] != "":
640 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
642 bindings_instantiator += ", " + first_to_lower(var.arg_name)
644 bindings_instantiator += ", " + first_to_lower(var[1]) + ".bindings_instance"
645 super_instantiator += first_to_lower(var[1]) + "_impl, "
646 pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
647 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface"
649 super_constructor_statements = ""
650 trait_constructor_arguments = ""
651 for var in field_var_conversions:
652 if isinstance(var, ConvInfo):
653 trait_constructor_arguments += ", " + var.arg_name
655 super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + super_instantiator + ");\n"
656 trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".bindings_instance"
657 for suparg in var[2]:
658 if isinstance(suparg, ConvInfo):
659 trait_constructor_arguments += ", " + suparg.arg_name
661 trait_constructor_arguments += ", " + suparg[1]
663 # BUILD INTERFACE METHODS
664 out_java_interface = ""
665 out_interface_implementation_overrides = ""
667 for fn_line in field_function_lines:
668 java_method_descriptor = ""
669 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
670 out_java_interface += "\t" + fn_line.fn_name + "("
671 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
673 for idx, arg_conv_info in enumerate(fn_line.args_ty):
675 out_java_interface += ", "
676 out_interface_implementation_overrides += ", "
677 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
678 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
679 java_method_descriptor += arg_conv_info.java_fn_ty_arg
680 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
681 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
682 java_methods.append((fn_line.fn_name, java_method_descriptor))
684 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
686 for arg_info in fn_line.args_ty:
687 if arg_info.to_hu_conv is not None:
688 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
690 if fn_line.ret_ty_info.java_ty != "void":
691 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
693 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
695 for idx, arg_info in enumerate(fn_line.args_ty):
697 out_interface_implementation_overrides += ", "
698 if arg_info.to_hu_conv_name is not None:
699 out_interface_implementation_overrides += arg_info.to_hu_conv_name
701 out_interface_implementation_overrides += arg_info.arg_name
703 out_interface_implementation_overrides += ");\n"
704 if fn_line.ret_ty_info.java_ty != "void":
705 if fn_line.ret_ty_info.from_hu_conv is not None:
706 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"
707 if fn_line.ret_ty_info.from_hu_conv[1] != "":
708 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"
709 #if fn_line.ret_ty_info.rust_obj in result_types:
710 # XXX: We need to handle this in conversion logic so that its cross-language!
711 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
712 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
713 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
715 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
716 out_interface_implementation_overrides += f"\t\t\t}},\n"
718 out_typescript_human = f"""
719 {self.hu_struct_file_prefix}
721 export interface {struct_name.replace("LDK", "")}Interface {{
722 {out_java_interface}}}
724 class {struct_name}Holder {{
725 held: {struct_name.replace("LDK", "")};
728 export class {struct_name.replace("LDK","")} extends CommonBase {{
730 public bindings_instance?: bindings.{struct_name};
733 constructor(_dummy: object, ptr: number) {{
734 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
735 this.bindings_instance = null;
738 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
739 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
740 let structImplementation = {{
741 {out_interface_implementation_overrides} }} as bindings.{struct_name};
742 {super_constructor_statements} const ptr: number = bindings.{struct_name}_new(structImplementation{bindings_instantiator});
744 impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr);
745 impl_holder.held.bindings_instance = structImplementation;
746 {pointer_to_adder} return impl_holder.held;
749 self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs")
751 out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
753 for fn_line in field_function_lines:
754 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
755 out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
757 for idx, arg_conv_info in enumerate(fn_line.args_ty):
759 out_typescript_bindings = out_typescript_bindings + ", "
760 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
762 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
764 out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
766 out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
767 for var in flattened_field_var_conversions:
768 if isinstance(var, ConvInfo):
769 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
771 out_typescript_bindings += f", {var[1]}: {var[0]}"
773 out_typescript_bindings += f"""): number {{
774 throw new Error('unimplemented'); // TODO: bind to WASM
778 out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
780 # Now that we've written out our java code (and created java_meths), generate C
781 out_c = "typedef struct " + struct_name + "_JCalls {\n"
782 out_c = out_c + "\tatomic_size_t refcnt;\n"
783 for var in flattened_field_var_conversions:
784 if isinstance(var, ConvInfo):
785 # We're a regular ol' field
789 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
790 for fn in field_function_lines:
791 if fn.fn_name != "free" and fn.fn_name != "cloned":
792 out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n"
793 out_c = out_c + "} " + struct_name + "_JCalls;\n"
795 for fn_line in field_function_lines:
796 if fn_line.fn_name == "free":
797 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
798 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
799 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
800 for fn in field_function_lines:
801 if fn.fn_name != "free" and fn.fn_name != "cloned":
802 out_c = out_c + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n"
803 out_c = out_c + "\t\tFREE(j_calls);\n"
804 out_c = out_c + "\t}\n}\n"
806 for idx, fn_line in enumerate(field_function_lines):
807 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
808 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
809 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
810 if fn_line.self_is_const:
811 out_c = out_c + "const void* this_arg"
813 out_c = out_c + "void* this_arg"
815 for idx, arg in enumerate(fn_line.args_ty):
816 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
818 out_c = out_c + ") {\n"
819 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
821 for arg_info in fn_line.args_ty:
822 if arg_info.ret_conv is not None:
823 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
824 out_c = out_c + arg_info.arg_name
825 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
827 if fn_line.ret_ty_info.c_ty.endswith("Array"):
828 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
829 out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
830 elif fn_line.ret_ty_info.java_ty == "void":
831 out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
832 elif fn_line.ret_ty_info.java_ty == "String":
833 out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
834 elif not fn_line.ret_ty_info.passed_as_ptr:
835 out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
837 out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
839 for idx, arg_info in enumerate(fn_line.args_ty):
840 if arg_info.ret_conv is not None:
841 out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
843 out_c = out_c + ", (uint32_t)" + arg_info.arg_name
844 out_c = out_c + ");\n"
845 if fn_line.ret_ty_info.arg_conv is not None:
846 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"
848 out_c = out_c + "}\n"
850 # Write out a clone function whether we need one or not, as we use them in moving to rust
851 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
852 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
853 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
854 for var in field_var_conversions:
855 if not isinstance(var, ConvInfo):
856 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
857 out_c = out_c + "}\n"
859 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o"
860 for var in flattened_field_var_conversions:
861 if isinstance(var, ConvInfo):
862 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
864 out_c = out_c + ", /*TODO: JS Object Reference */void* " + var[1]
865 out_c = out_c + ") {\n"
867 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
868 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
869 out_c = out_c + "\t//TODO: Assign calls->o from o\n"
871 for (fn_name, java_meth_descr) in java_meths:
872 if fn_name != "free" and fn_name != "cloned":
873 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
874 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
876 for var in flattened_field_var_conversions:
877 if isinstance(var, ConvInfo) and var.arg_conv is not None:
878 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
879 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
880 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
881 for fn_line in field_function_lines:
882 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
883 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
884 elif fn_line.fn_name == "free":
885 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
887 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
888 for var in field_var_conversions:
889 if isinstance(var, ConvInfo):
890 if var.arg_conv_name is not None:
891 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
892 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
894 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
895 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
897 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
898 for suparg in var[2]:
899 if isinstance(suparg, ConvInfo):
900 out_c += ", " + suparg.arg_name
902 out_c += ", " + suparg[1]
904 out_c = out_c + "\t};\n"
905 for var in flattened_field_var_conversions:
906 if not isinstance(var, ConvInfo):
907 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
908 out_c = out_c + "\treturn ret;\n"
909 out_c = out_c + "}\n"
911 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"
912 for var in flattened_field_var_conversions:
913 if isinstance(var, ConvInfo):
914 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
916 out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1]
917 out_c = out_c + ") {\n"
918 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
919 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
920 for var in flattened_field_var_conversions:
921 if isinstance(var, ConvInfo):
922 out_c = out_c + ", " + var.arg_name
924 out_c = out_c + ", " + var[1]
925 out_c = out_c + ");\n"
926 out_c = out_c + "\treturn (long)res_ptr;\n"
927 out_c = out_c + "}\n"
929 return (out_typescript_bindings, out_typescript_human, out_c)
931 def trait_struct_inc_refcnt(self, ty_info):
934 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
935 bindings_type = struct_name.replace("LDK", "")
936 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
942 out_java_enum += (self.hu_struct_file_prefix)
945 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
946 java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr, bindings." + bindings_type + "_free); }\n"
947 java_hu_class += "\t/* @internal */\n"
948 java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
949 java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n"
950 java_hu_subclasses = ""
952 out_java += "\texport class " + struct_name + " {\n"
953 out_java += "\t\tprotected constructor() {}\n"
955 for var in variant_list:
956 java_subclasses += "\texport class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n"
957 java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
958 java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n"
959 java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n"
960 init_meth_params = ""
962 for idx, (field_ty, field_docs) in enumerate(var.fields):
963 java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
964 if field_ty.to_hu_conv is not None:
965 hu_conv_body = hu_conv_body + "\t\tconst " + field_ty.arg_name + f": {field_ty.java_ty} = obj." + field_ty.arg_name + ";\n"
966 hu_conv_body = hu_conv_body + "\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
967 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
969 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
971 init_meth_params += ", "
972 init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty
973 java_subclasses += "\t\tconstructor(" + init_meth_params + ") { super(); }\n"
974 java_subclasses += "\t}\n"
975 java_hu_class += "\t\t}\n"
976 java_hu_subclasses += "\t/* @internal */\n"
977 java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
978 java_hu_subclasses = java_hu_subclasses + hu_conv_body
979 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
980 out_java += ("\t}\n")
981 out_java += java_subclasses
982 java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n"
983 out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
985 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")
986 out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n")
987 out_c += ("\tswitch(obj->tag) {\n")
988 for var in variant_list:
989 out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
991 for idx, (field_map, _) in enumerate(var.fields):
992 if field_map.ret_conv is not None:
993 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
994 if var.tuple_variant:
995 out_c += "obj->" + camel_to_snake(var.var_name)
997 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
998 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
999 c_params.append(field_map.ret_conv_name)
1001 if var.tuple_variant:
1002 c_params.append("obj->" + camel_to_snake(var.var_name))
1004 c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
1005 out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
1006 out_c += ("\t\t}\n")
1007 out_c += ("\t\tdefault: abort();\n")
1008 out_c += ("\t}\n}\n")
1009 out_java_enum += java_hu_class
1010 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1011 self.obj_defined([java_hu_type], "structs")
1012 return (out_java, out_java_enum, out_c)
1014 def map_opaque_struct(self, struct_name, struct_doc_comment):
1015 implementations = ""
1018 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1019 out_opaque_struct_human = f"{self.hu_struct_file_prefix}"
1020 if struct_name.startswith("LDKLocked"):
1021 out_opaque_struct_human += "/** XXX: DO NOT USE THIS - it remains locked until the GC runs (if that ever happens */"
1022 out_opaque_struct_human += f"""
1023 export class {hu_name} extends CommonBase {implementations}{{
1025 public constructor(_dummy: object, ptr: number) {{
1026 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1030 self.obj_defined([hu_name], "structs")
1031 return out_opaque_struct_human
1033 def map_tuple(self, struct_name):
1034 return self.map_opaque_struct(struct_name, "A Tuple")
1036 def map_result(self, struct_name, res_map, err_map):
1037 human_ty = struct_name.replace("LDKCResult", "Result")
1039 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1040 if res_map.java_hu_ty != "void":
1041 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1044 public constructor(_dummy: object, ptr: number) {{
1047 if res_map.java_hu_ty == "void":
1049 elif res_map.to_hu_conv is not None:
1050 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1051 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1052 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1054 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1055 suffixes += "\t}\n}\n"
1057 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1058 if err_map.java_hu_ty != "void":
1059 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1062 public constructor(_dummy: object, ptr: number) {{
1065 if err_map.java_hu_ty == "void":
1067 elif err_map.to_hu_conv is not None:
1068 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1069 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1070 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1072 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1073 suffixes += "\t}\n}"
1075 self.struct_file_suffixes[human_ty] = suffixes
1076 self.obj_defined([human_ty], "structs")
1078 return f"""{self.hu_struct_file_prefix}
1080 export class {human_ty} extends CommonBase {{
1081 protected constructor(_dummy: object, ptr: number) {{
1082 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1085 public static constr_from_ptr(ptr: number): {human_ty} {{
1086 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1087 return new {human_ty}_OK(null, ptr);
1089 return new {human_ty}_Err(null, ptr);
1094 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1095 has_return_value = return_c_ty != 'void'
1096 needs_decoding = return_c_ty in self.wasm_decoding_map
1097 return_statement = 'return nativeResponseValue;'
1098 if not has_return_value:
1099 return_statement = '// debug statements here'
1100 elif needs_decoding:
1101 converter = self.wasm_decoding_map[return_c_ty]
1102 return_statement = f"return {converter}(nativeResponseValue);"
1104 return f"""\texport function {method_name}({method_argument_string}): {return_java_ty} {{
1105 if(!isWasmInitialized) {{
1106 throw new Error("initializeWasm() must be awaited first!");
1108 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1112 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):
1115 out_java_struct = None
1118 out_c += (self.c_fn_ty_pfx)
1119 out_c += (return_type_info.c_ty)
1120 out_java += (return_type_info.java_ty)
1121 if return_type_info.ret_conv is not None:
1122 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1123 out_java += (" " + method_name + "(")
1124 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1126 method_argument_string = ""
1127 native_call_argument_string = ""
1128 for idx, arg_conv_info in enumerate(argument_types):
1130 method_argument_string += (", ")
1131 native_call_argument_string += ', '
1133 if arg_conv_info.c_ty != "void":
1134 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1135 needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
1136 native_argument = arg_conv_info.arg_name
1138 converter = self.wasm_encoding_map[arg_conv_info.c_ty]
1139 native_argument = f"{converter}({arg_conv_info.arg_name})"
1140 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1141 native_call_argument_string += native_argument
1142 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)
1144 out_java_struct = ""
1146 out_java_struct += ("\t// Skipped " + method_name + "\n")
1149 out_java_struct += (
1150 "\tpublic static constructor_" + meth_n + "(")
1152 out_java_struct += ("\tpublic " + meth_n + "(")
1153 for idx, arg in enumerate(argument_types):
1155 if not takes_self or idx > 1:
1156 out_java_struct += (", ")
1159 if arg.java_ty != "void":
1160 if arg.arg_name in default_constructor_args:
1161 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1162 if explode_idx != 0:
1163 out_java_struct += (", ")
1164 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1166 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1169 if out_java_struct is not None:
1170 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1171 for info in argument_types:
1172 if info.arg_conv is not None:
1173 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1174 if return_type_info.ret_conv is not None:
1175 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1176 elif return_type_info.c_ty != "void":
1177 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1180 if c_call_string is None:
1181 out_c += (method_name + "(")
1183 out_c += (c_call_string)
1184 for idx, info in enumerate(argument_types):
1185 if info.arg_conv_name is not None:
1188 elif c_call_string is not None:
1190 out_c += (info.arg_conv_name)
1192 if return_type_info.ret_conv is not None:
1193 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1196 for info in argument_types:
1197 if info.arg_conv_cleanup is not None:
1198 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1199 if return_type_info.ret_conv is not None:
1200 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1201 elif return_type_info.c_ty != "void":
1202 out_c += ("\n\treturn ret_val;")
1203 out_c += ("\n}\n\n")
1206 out_java_struct += ("\t\t")
1207 if return_type_info.java_ty != "void":
1208 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1209 out_java_struct += ("bindings." + method_name + "(")
1210 for idx, info in enumerate(argument_types):
1212 out_java_struct += (", ")
1213 if idx == 0 and takes_self:
1214 out_java_struct += ("this.ptr")
1215 elif info.arg_name in default_constructor_args:
1216 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1217 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1218 if explode_idx != 0:
1219 out_java_struct += (", ")
1220 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1221 if explode_arg.from_hu_conv is not None:
1222 out_java_struct += (
1223 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1225 out_java_struct += (expl_arg_name)
1226 out_java_struct += (")")
1227 elif info.from_hu_conv is not None:
1228 out_java_struct += (info.from_hu_conv[0])
1230 out_java_struct += (info.arg_name)
1231 out_java_struct += (");\n")
1232 if return_type_info.to_hu_conv is not None:
1234 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1235 return_type_info.to_hu_conv_name) + "\n")
1237 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1239 for idx, info in enumerate(argument_types):
1240 if idx == 0 and takes_self:
1242 elif info.arg_name in default_constructor_args:
1243 for explode_arg in default_constructor_args[info.arg_name]:
1244 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1245 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1246 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1247 expl_arg_name).replace(
1248 "this", return_type_info.to_hu_conv_name) + ";\n")
1249 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1250 if not takes_self and return_type_info.to_hu_conv_name is not None:
1251 out_java_struct += (
1252 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1254 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1256 if return_type_info.to_hu_conv_name is not None:
1257 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1258 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1259 out_java_struct += ("\t\treturn ret;\n")
1260 out_java_struct += ("\t}\n\n")
1262 return (out_java, out_c, out_java_struct)
1265 for struct in self.struct_file_suffixes:
1266 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1267 src.write(self.struct_file_suffixes[struct])