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 = ""
82 self.common_base = """
83 function freer(f: () => void) { f() }
84 const finalizer = new FinalizationRegistry(freer);
85 function get_freeer(ptr: number, free_fn: (number) => void) {
91 export default class CommonBase {
92 protected ptr: number;
93 protected ptrs_to: object[] = [];
94 protected constructor(ptr: number, free_fn: (ptr: number) => void) {
96 if (Number.isFinite(ptr) && ptr != 0){
97 finalizer.register(this, get_freeer(ptr, free_fn));
100 // In Java, protected means "any subclass can access fields on any other subclass'"
101 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
102 // To work around this, we add accessors for other instances' protected fields here.
103 protected static add_ref_from(holder: CommonBase, referent: object) {
104 holder.ptrs_to.push(referent);
106 protected static get_ptr_of(o: CommonBase) {
109 protected static set_null_skip_free(o: CommonBase) {
111 finalizer.unregister(o);
116 self.c_file_pfx = """#include "js-wasm.h"
117 #include <stdatomic.h>
118 #include <lightning.h>
120 // These should be provided...somehow...
121 void *memset(void *s, int c, size_t n);
122 void *memcpy(void *dest, const void *src, size_t n);
123 int memcmp(const void *s1, const void *s2, size_t n);
125 void __attribute__((noreturn)) abort(void);
126 static inline void assert(bool expression) {
127 if (!expression) { abort(); }
132 self.c_file_pfx = self.c_file_pfx + """
133 void *malloc(size_t size);
134 void free(void *ptr);
136 #define MALLOC(a, _) malloc(a)
137 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
138 #define DO_ASSERT(a) (void)(a)
140 #define CHECK_ACCESS(p)
141 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
144 self.c_file_pfx = self.c_file_pfx + """
145 // Always run a, then assert it is true:
146 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
147 // Assert a is true or do nothing
148 #define CHECK(a) DO_ASSERT(a)
150 // Running a leak check across all the allocations and frees of the JDK is a mess,
151 // so instead we implement our own naive leak checker here, relying on the -wrap
152 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
153 // and free'd in Rust or C across the generated bindings shared library.
156 typedef struct allocation {
157 struct allocation* next;
159 const char* struct_name;
161 static allocation* allocation_ll = NULL;
163 void* __real_malloc(size_t len);
164 void* __real_calloc(size_t nmemb, size_t len);
165 static void new_allocation(void* res, const char* struct_name) {
166 allocation* new_alloc = __real_malloc(sizeof(allocation));
167 new_alloc->ptr = res;
168 new_alloc->struct_name = struct_name;
169 new_alloc->next = allocation_ll;
170 allocation_ll = new_alloc;
172 static void* MALLOC(size_t len, const char* struct_name) {
173 void* res = __real_malloc(len);
174 new_allocation(res, struct_name);
177 void __real_free(void* ptr);
178 static void alloc_freed(void* ptr) {
179 allocation* p = NULL;
180 allocation* it = allocation_ll;
181 while (it->ptr != ptr) {
182 p = it; it = it->next;
184 //XXX: fprintf(stderr, "Tried to free unknown pointer %p\\n", ptr);
185 return; // addrsan should catch malloc-unknown and print more info than we have
188 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
189 DO_ASSERT(it->ptr == ptr);
192 static void FREE(void* ptr) {
193 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
198 static void CHECK_ACCESS(const void* ptr) {
199 allocation* it = allocation_ll;
200 while (it->ptr != ptr) {
203 return; // addrsan should catch malloc-unknown and print more info than we have
207 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
208 if (v.is_owned && v.inner != NULL) { \\
209 const void *p = __unmangle_inner_ptr(v.inner); \\
215 void* __wrap_malloc(size_t len) {
216 void* res = __real_malloc(len);
217 new_allocation(res, "malloc call");
220 void* __wrap_calloc(size_t nmemb, size_t len) {
221 void* res = __real_calloc(nmemb, len);
222 new_allocation(res, "calloc call");
225 void __wrap_free(void* ptr) {
226 if (ptr == NULL) return;
231 void* __real_realloc(void* ptr, size_t newlen);
232 void* __wrap_realloc(void* ptr, size_t len) {
233 if (ptr != NULL) alloc_freed(ptr);
234 void* res = __real_realloc(ptr, len);
235 new_allocation(res, "realloc call");
238 void __wrap_reallocarray(void* ptr, size_t new_sz) {
239 // Rust doesn't seem to use reallocarray currently
243 void __attribute__((destructor)) check_leaks() {
244 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
245 //XXX: fprintf(stderr, "%s %p remains\\n", a->struct_name, a->ptr);
247 DO_ASSERT(allocation_ll == NULL);
250 self.c_file_pfx = self.c_file_pfx + """
251 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
252 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
253 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
254 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
256 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
258 #define DECL_ARR_TYPE(ty, name) \\
259 struct name##array { \\
263 typedef struct name##array * name##Array; \\
264 static inline name##Array init_##name##Array(size_t arr_len) { \\
265 name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \\
266 arr->arr_len = arr_len; \\
270 DECL_ARR_TYPE(int64_t, int64_t);
271 DECL_ARR_TYPE(int8_t, int8_t);
272 DECL_ARR_TYPE(uint32_t, uint32_t);
273 DECL_ARR_TYPE(void*, ptr);
274 DECL_ARR_TYPE(char, char);
275 typedef charArray jstring;
277 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
278 charArray arr = init_charArray(len);
279 memcpy(arr->elems, chars, len);
282 static inline LDKStr str_ref_to_owned_c(const jstring str) {
283 char* newchars = MALLOC(str->arr_len + 1, "String chars");
284 memcpy(newchars, str->elems, str->arr_len);
285 newchars[str->arr_len] = 0;
289 .chars_is_owned = true
294 typedef bool jboolean;
296 uint32_t __attribute__((visibility("default"))) TS_malloc(uint32_t size) {
297 return (uint32_t)MALLOC(size, "JS-Called malloc");
299 void __attribute__((visibility("default"))) TS_free(uint32_t ptr) {
304 self.c_version_file = ""
306 self.hu_struct_file_prefix = """
307 import CommonBase from './CommonBase.mjs';
308 import * as bindings from '../bindings.mjs'
309 import * as InternalUtils from '../InternalUtils.mjs'
312 self.c_fn_ty_pfx = ""
313 self.file_ext = ".mts"
314 self.ptr_c_ty = "uint32_t"
315 self.ptr_native_ty = "number"
316 self.result_c_ty = "uint32_t"
317 self.ptr_arr = "ptrArray"
318 self.is_arr_some_check = ("", " != 0")
319 self.get_native_arr_len_call = ("", "->arr_len")
321 with open(outdir + "/InternalUtils.mts", "w") as f:
322 f.write("export function check_arr_len(arr: Uint8Array, len: number): Uint8Array {\n")
323 f.write("\tif (arr.length != len) { throw new Error(\"Expected array of length \" + len + \"got \" + arr.length); }\n")
324 f.write("\treturn arr;\n")
327 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
329 def create_native_arr_call(self, arr_len, ty_info):
330 if ty_info.c_ty == "ptrArray":
331 assert ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array")
332 return "init_" + ty_info.c_ty + "(" + arr_len + ")"
333 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
334 if ty_info.c_ty == "int8_tArray":
335 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
338 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
339 if ty_info.c_ty == "int8_tArray":
341 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + arr_len + ")"
342 if ty_info.c_ty == "ptrArray":
343 return "(void*) " + arr_name + "->elems"
346 return arr_name + "->elems"
347 def get_native_arr_elem(self, arr_name, idxc, ty_info):
348 assert False # Only called if above is None
349 def get_native_arr_ptr_call(self, ty_info):
350 if ty_info.subty is not None:
351 return "(" + ty_info.subty.c_ty + "*)(", " + 4)"
352 return "(" + ty_info.c_ty + "*)(", " + 4)"
353 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
355 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
356 if ty_info.c_ty == "int8_tArray":
361 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
362 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
364 def str_ref_to_native_call(self, var_name, str_len):
365 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
366 def str_ref_to_c_call(self, var_name):
367 return "str_ref_to_owned_c(" + var_name + ")"
369 def c_fn_name_define_pfx(self, fn_name, have_args):
370 return " __attribute__((visibility(\"default\"))) TS_" + fn_name + "("
372 def wasm_import_header(self, target):
374 const imports: any = {};
377 imports.env.tableBase = 0;
378 imports.env.table = new WebAssembly.Table({initial: 4, element: 'anyfunc'});
380 imports.env["abort"] = function () {
381 console.error("ABORT");
383 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) {
384 console.log('function called from wasm:', fn, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
386 imports.env["js_free_function_ptr"] = function(fn: number) {
387 console.log("function ptr free'd from wasm:", fn);
390 imports.wasi_snapshot_preview1 = {
392 console.log("ABORT");
394 "random_get" : () => {
395 console.log("RAND GET");
397 "environ_sizes_get" : () => {
398 console.log("wasi_snapshot_preview1:environ_sizes_get");
400 "proc_exit" : () => {
401 console.log("wasi_snapshot_preview1:proc_exit");
403 "environ_get" : () => {
404 console.log("wasi_snapshot_preview1:environ_get");
409 let isWasmInitialized: boolean = false;
412 if target == Target.NODEJS:
413 res += """import * as fs from 'fs';
414 export async function initializeWasm(path) {
415 const source = fs.readFileSync(path);
416 const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports);
417 wasm = wasmInstance.exports;
418 isWasmInitialized = true;
423 export async function initializeWasm(uri) {
424 const stream = fetch(uri);
425 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
426 wasm = wasmInstance.exports;
427 isWasmInitialized = true;
437 const nextMultipleOfFour = (value: number) => {
438 return Math.ceil(value / 4) * 4;
441 const encodeUint8Array = (inputArray) => {
442 const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
443 const arrayLengthView = new Uint32Array(wasm.memory.buffer, cArrayPointer, 1);
444 arrayLengthView[0] = inputArray.length;
445 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 4, inputArray.length);
446 arrayMemoryView.set(inputArray);
447 return cArrayPointer;
450 const encodeUint32Array = (inputArray) => {
451 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
452 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer, inputArray.length);
453 arrayMemoryView.set(inputArray, 1);
454 arrayMemoryView[0] = inputArray.length;
455 return cArrayPointer;
458 const getArrayLength = (arrayPointer) => {
459 const arraySizeViewer = new Uint32Array(
460 wasm.memory.buffer, // value
461 arrayPointer, // offset
464 return arraySizeViewer[0];
466 const decodeUint8Array = (arrayPointer, free = true) => {
467 const arraySize = getArrayLength(arrayPointer);
468 const actualArrayViewer = new Uint8Array(
469 wasm.memory.buffer, // value
470 arrayPointer + 4, // offset (ignoring length bytes)
471 arraySize // uint8 count
473 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
474 // will free the underlying memory when it becomes unreachable instead of copying here.
475 const actualArray = actualArrayViewer.slice(0, arraySize);
477 wasm.TS_free(arrayPointer);
481 const decodeUint32Array = (arrayPointer, free = true) => {
482 const arraySize = getArrayLength(arrayPointer);
483 const actualArrayViewer = new Uint32Array(
484 wasm.memory.buffer, // value
485 arrayPointer + 4, // offset (ignoring length bytes)
486 arraySize // uint32 count
488 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
489 // will free the underlying memory when it becomes unreachable instead of copying here.
490 const actualArray = actualArrayViewer.slice(0, arraySize);
492 wasm.TS_free(arrayPointer);
497 const encodeString = (string) => {
498 // make malloc count divisible by 4
499 const memoryNeed = nextMultipleOfFour(string.length + 1);
500 const stringPointer = wasm.TS_malloc(memoryNeed);
501 const stringMemoryView = new Uint8Array(
502 wasm.memory.buffer, // value
503 stringPointer, // offset
504 string.length + 1 // length
506 for (let i = 0; i < string.length; i++) {
507 stringMemoryView[i] = string.charCodeAt(i);
509 stringMemoryView[string.length] = 0;
510 return stringPointer;
513 const decodeString = (stringPointer, free = true) => {
514 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer);
518 while (memoryView[cursor] !== 0) {
519 result += String.fromCharCode(memoryView[cursor]);
524 wasm.wasm_free(stringPointer);
534 def var_decl_statement(self, ty_string, var_name, statement):
535 return "const " + var_name + ": " + ty_string + " = " + statement
537 def for_n_in_range(self, n, minimum, maximum):
538 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
539 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
540 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
542 def get_ptr(self, var):
543 return "CommonBase.get_ptr_of(" + var + ")"
544 def set_null_skip_free(self, var):
545 return "CommonBase.set_null_skip_free(" + var + ");"
547 def add_ref(self, holder, referent):
548 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
550 def obj_defined(self, struct_names, folder):
551 with open(self.outdir + "/index.mts", 'a') as index:
552 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
553 with open(self.outdir + "/imports.mts.part", 'a') as imports:
554 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
556 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
557 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
558 out_c = out_c + "\tswitch (ord) {\n"
561 out_typescript_enum_fields = ""
563 for var, var_docs in variants:
564 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
566 if var_docs is not None:
567 out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
568 out_typescript_enum_fields += f"{var},\n\t\t\t\t"
569 out_c = out_c + "\t}\n"
570 out_c = out_c + "\tabort();\n"
571 out_c = out_c + "}\n"
573 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
574 out_c = out_c + "\tswitch (val) {\n"
576 for var, _ in variants:
577 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
579 out_c = out_c + "\t\tdefault: abort();\n"
580 out_c = out_c + "\t}\n"
581 out_c = out_c + "}\n"
583 out_typescript = f"""
584 export enum {struct_name} {{
585 {out_typescript_enum_fields}
588 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
589 self.obj_defined([struct_name], "enums")
590 return (out_c, out_typescript_enum, out_typescript)
592 def c_unitary_enum_to_native_call(self, ty_info):
593 return (ty_info.rust_obj + "_to_js(", ")")
594 def native_unitary_enum_to_c_call(self, ty_info):
595 return (ty_info.rust_obj + "_from_js(", ")")
597 def c_complex_enum_pass_ty(self, struct_name):
600 def c_constr_native_complex_enum(self, struct_name, variant, c_params):
601 ret = "0 /* " + struct_name + " - " + variant + " */"
602 for param in c_params:
603 ret = ret + "; (void) " + param
606 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
607 out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
609 constructor_arguments = ""
610 super_instantiator = ""
611 pointer_to_adder = ""
612 impl_constructor_arguments = ""
613 for var in flattened_field_var_conversions:
614 if isinstance(var, ConvInfo):
615 constructor_arguments += f", {first_to_lower(var.arg_name)}?: {var.java_hu_ty}"
616 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
617 if var.from_hu_conv is not None:
618 super_instantiator += ", " + var.from_hu_conv[0]
619 if var.from_hu_conv[1] != "":
620 pointer_to_adder += var.from_hu_conv[1] + ";\n"
622 super_instantiator += ", " + first_to_lower(var.arg_name)
624 constructor_arguments += f", {first_to_lower(var[1])}?: bindings.{var[0]}"
625 super_instantiator += ", " + first_to_lower(var[1])
626 pointer_to_adder += "this.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
627 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}.{var[0].replace('LDK', '')}Interface"
629 # BUILD INTERFACE METHODS
630 out_java_interface = ""
631 out_interface_implementation_overrides = ""
633 for fn_line in field_function_lines:
634 java_method_descriptor = ""
635 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
636 out_java_interface += fn_line.fn_name + "("
637 out_interface_implementation_overrides += f"{fn_line.fn_name} ("
639 for idx, arg_conv_info in enumerate(fn_line.args_ty):
641 out_java_interface += ", "
642 out_interface_implementation_overrides += ", "
643 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
644 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
645 java_method_descriptor += arg_conv_info.java_fn_ty_arg
646 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n\t\t\t\t"
647 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
648 java_methods.append((fn_line.fn_name, java_method_descriptor))
650 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
652 interface_method_override_inset = "\t\t\t\t\t\t"
653 interface_implementation_inset = "\t\t\t\t\t\t\t"
654 for arg_info in fn_line.args_ty:
655 if arg_info.to_hu_conv is not None:
656 out_interface_implementation_overrides += interface_implementation_inset + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
658 if fn_line.ret_ty_info.java_ty != "void":
659 out_interface_implementation_overrides += interface_implementation_inset + fn_line.ret_ty_info.java_hu_ty + " ret = arg." + fn_line.fn_name + "("
661 out_interface_implementation_overrides += f"{interface_implementation_inset}arg." + fn_line.fn_name + "("
663 for idx, arg_info in enumerate(fn_line.args_ty):
665 out_interface_implementation_overrides += ", "
666 if arg_info.to_hu_conv_name is not None:
667 out_interface_implementation_overrides += arg_info.to_hu_conv_name
669 out_interface_implementation_overrides += arg_info.arg_name
671 out_interface_implementation_overrides += ");\n"
672 if fn_line.ret_ty_info.java_ty != "void":
673 if fn_line.ret_ty_info.from_hu_conv is not None:
674 out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + f"result: {fn_line.ret_ty_info.java_ty} = " + fn_line.ret_ty_info.from_hu_conv[0] + ";\n"
675 if fn_line.ret_ty_info.from_hu_conv[1] != "":
676 out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\t" + fn_line.ret_ty_info.from_hu_conv[1].replace("this", "impl_holder.held") + ";\n"
677 #if fn_line.ret_ty_info.rust_obj in result_types:
678 # XXX: We need to handle this in conversion logic so that its cross-language!
679 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
680 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
681 out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn result;\n"
683 out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\treturn ret;\n"
684 out_interface_implementation_overrides += f"{interface_method_override_inset}}},\n\n{interface_method_override_inset}"
686 trait_constructor_arguments = ""
687 for var in field_var_conversions:
688 if isinstance(var, ConvInfo):
689 trait_constructor_arguments += ", " + var.arg_name
691 trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl"
692 for suparg in var[2]:
693 if isinstance(suparg, ConvInfo):
694 trait_constructor_arguments += ", " + suparg.arg_name
696 trait_constructor_arguments += ", " + suparg[1]
697 trait_constructor_arguments += ").bindings_instance"
698 for suparg in var[2]:
699 if isinstance(suparg, ConvInfo):
700 trait_constructor_arguments += ", " + suparg.arg_name
702 trait_constructor_arguments += ", " + suparg[1]
704 out_typescript_human = f"""
705 {self.hu_struct_file_prefix}
707 {struct_name.replace("LDK","")} extends CommonBase {{
709 bindings_instance?: bindings.{struct_name};
711 constructor(ptr?: number, arg?: bindings.{struct_name}{constructor_arguments}) {{
712 if (Number.isFinite(ptr)) {{
713 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
714 this.bindings_instance = null;
716 // TODO: private constructor instantiation
717 super(bindings.{struct_name}_new(arg{super_instantiator}));
718 this.ptrs_to.push(arg);
723 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
724 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
725 let structImplementation = <bindings.{struct_name}>{{
726 // todo: in-line interface filling
727 {out_interface_implementation_overrides}
729 impl_holder.held = new {struct_name.replace("LDK", "")} (null, structImplementation{trait_constructor_arguments});
732 export interface {struct_name.replace("LDK", "")}Interface {{
736 class {struct_name}Holder {{
737 held: {struct_name.replace("LDK", "")};
741 out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
743 for fn_line in field_function_lines:
744 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
745 out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
747 for idx, arg_conv_info in enumerate(fn_line.args_ty):
749 out_typescript_bindings = out_typescript_bindings + ", "
750 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
752 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
754 out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
756 out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
757 for var in flattened_field_var_conversions:
758 if isinstance(var, ConvInfo):
759 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
761 out_typescript_bindings += f", {var[1]}: {var[0]}"
763 out_typescript_bindings += f"""): number {{
764 throw new Error('unimplemented'); // TODO: bind to WASM
768 out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
770 # Now that we've written out our java code (and created java_meths), generate C
771 out_c = "typedef struct " + struct_name + "_JCalls {\n"
772 out_c = out_c + "\tatomic_size_t refcnt;\n"
773 for var in flattened_field_var_conversions:
774 if isinstance(var, ConvInfo):
775 # We're a regular ol' field
779 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
780 for fn in field_function_lines:
781 if fn.fn_name != "free" and fn.fn_name != "cloned":
782 out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n"
783 out_c = out_c + "} " + struct_name + "_JCalls;\n"
785 for fn_line in field_function_lines:
786 if fn_line.fn_name == "free":
787 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
788 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
789 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 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 + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n"
793 out_c = out_c + "\t\tFREE(j_calls);\n"
794 out_c = out_c + "\t}\n}\n"
796 for idx, fn_line in enumerate(field_function_lines):
797 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
798 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
799 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
800 if fn_line.self_is_const:
801 out_c = out_c + "const void* this_arg"
803 out_c = out_c + "void* this_arg"
805 for idx, arg in enumerate(fn_line.args_ty):
806 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
808 out_c = out_c + ") {\n"
809 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
811 for arg_info in fn_line.args_ty:
812 if arg_info.ret_conv is not None:
813 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
814 out_c = out_c + arg_info.arg_name
815 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
817 if fn_line.ret_ty_info.c_ty.endswith("Array"):
818 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
819 out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
820 elif fn_line.ret_ty_info.java_ty == "void":
821 out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
822 elif fn_line.ret_ty_info.java_ty == "String":
823 out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
824 elif not fn_line.ret_ty_info.passed_as_ptr:
825 out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
827 out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
829 for idx, arg_info in enumerate(fn_line.args_ty):
830 if arg_info.ret_conv is not None:
831 out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
833 out_c = out_c + ", (uint32_t)" + arg_info.arg_name
834 out_c = out_c + ");\n"
835 if fn_line.ret_ty_info.arg_conv is not None:
836 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"
838 out_c = out_c + "}\n"
840 # Write out a clone function whether we need one or not, as we use them in moving to rust
841 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
842 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
843 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
844 for var in field_var_conversions:
845 if not isinstance(var, ConvInfo):
846 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
847 out_c = out_c + "}\n"
849 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o"
850 for var in flattened_field_var_conversions:
851 if isinstance(var, ConvInfo):
852 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
854 out_c = out_c + ", /*TODO: JS Object Reference */void* " + var[1]
855 out_c = out_c + ") {\n"
857 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
858 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
859 out_c = out_c + "\t//TODO: Assign calls->o from o\n"
861 for (fn_name, java_meth_descr) in java_meths:
862 if fn_name != "free" and fn_name != "cloned":
863 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
864 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
866 for var in flattened_field_var_conversions:
867 if isinstance(var, ConvInfo) and var.arg_conv is not None:
868 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
869 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
870 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
871 for fn_line in field_function_lines:
872 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
873 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
874 elif fn_line.fn_name == "free":
875 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
877 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
878 for var in field_var_conversions:
879 if isinstance(var, ConvInfo):
880 if var.arg_conv_name is not None:
881 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
882 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
884 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
885 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
887 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
888 for suparg in var[2]:
889 if isinstance(suparg, ConvInfo):
890 out_c += ", " + suparg.arg_name
892 out_c += ", " + suparg[1]
894 out_c = out_c + "\t};\n"
895 for var in flattened_field_var_conversions:
896 if not isinstance(var, ConvInfo):
897 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
898 out_c = out_c + "\treturn ret;\n"
899 out_c = out_c + "}\n"
901 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"
902 for var in flattened_field_var_conversions:
903 if isinstance(var, ConvInfo):
904 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
906 out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1]
907 out_c = out_c + ") {\n"
908 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
909 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
910 for var in flattened_field_var_conversions:
911 if isinstance(var, ConvInfo):
912 out_c = out_c + ", " + var.arg_name
914 out_c = out_c + ", " + var[1]
915 out_c = out_c + ");\n"
916 out_c = out_c + "\treturn (long)res_ptr;\n"
917 out_c = out_c + "}\n"
919 return (out_typescript_bindings, out_typescript_human, out_c)
921 def trait_struct_inc_refcnt(self, ty_info):
924 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
925 bindings_type = struct_name.replace("LDK", "")
926 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
932 out_java_enum += (self.hu_struct_file_prefix)
935 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
936 java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr, bindings." + bindings_type + "_free); }\n"
937 java_hu_class += "\t/* @internal */\n"
938 java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
939 java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n"
940 java_hu_subclasses = ""
942 out_java += "\texport class " + struct_name + " {\n"
943 out_java += "\t\tprotected constructor() {}\n"
945 for var in variant_list:
946 java_subclasses += "\texport class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n"
947 java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
948 java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n"
949 java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n"
950 init_meth_params = ""
952 for idx, (field_ty, field_docs) in enumerate(var.fields):
953 java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
954 if field_ty.to_hu_conv is not None:
955 hu_conv_body = hu_conv_body + "\t\tconst " + field_ty.arg_name + f": {field_ty.java_ty} = obj." + field_ty.arg_name + ";\n"
956 hu_conv_body = hu_conv_body + "\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
957 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
959 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
961 init_meth_params += ", "
962 init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty
963 java_subclasses += "\t\tconstructor(" + init_meth_params + ") { super(); }\n"
964 java_subclasses += "\t}\n"
965 java_hu_class += "\t\t}\n"
966 java_hu_subclasses += "\t/* @internal */\n"
967 java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
968 java_hu_subclasses = java_hu_subclasses + hu_conv_body
969 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
970 out_java += ("\t}\n")
971 out_java += java_subclasses
972 java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n"
973 out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
975 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")
976 out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n")
977 out_c += ("\tswitch(obj->tag) {\n")
978 for var in variant_list:
979 out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
981 for idx, (field_map, _) in enumerate(var.fields):
982 if field_map.ret_conv is not None:
983 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
984 if var.tuple_variant:
985 out_c += "obj->" + camel_to_snake(var.var_name)
987 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
988 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
989 c_params.append(field_map.ret_conv_name)
991 if var.tuple_variant:
992 c_params.append("obj->" + camel_to_snake(var.var_name))
994 c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
995 out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
997 out_c += ("\t\tdefault: abort();\n")
998 out_c += ("\t}\n}\n")
999 out_java_enum += java_hu_class
1000 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1001 self.obj_defined([java_hu_type], "structs")
1002 return (out_java, out_java_enum, out_c)
1004 def map_opaque_struct(self, struct_name, struct_doc_comment):
1005 implementations = ""
1007 if struct_name.startswith("LDKLocked"):
1008 return "NOT IMPLEMENTED"
1010 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1011 out_opaque_struct_human = f"""{self.hu_struct_file_prefix}
1013 export class {hu_name} extends CommonBase {implementations}{{
1015 public constructor(_dummy: object, ptr: number) {{
1016 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1020 self.obj_defined([hu_name], "structs")
1021 return out_opaque_struct_human
1023 def map_tuple(self, struct_name):
1024 return self.map_opaque_struct(struct_name, "A Tuple")
1026 def map_result(self, struct_name, res_map, err_map):
1027 human_ty = struct_name.replace("LDKCResult", "Result")
1029 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1030 if res_map.java_hu_ty != "void":
1031 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1034 public constructor(_dummy: object, ptr: number) {{
1037 if res_map.java_hu_ty == "void":
1039 elif res_map.to_hu_conv is not None:
1040 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1041 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1042 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1044 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1045 suffixes += "\t}\n}\n"
1047 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1048 if err_map.java_hu_ty != "void":
1049 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1052 public constructor(_dummy: object, ptr: number) {{
1055 if err_map.java_hu_ty == "void":
1057 elif err_map.to_hu_conv is not None:
1058 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1059 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1060 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1062 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1063 suffixes += "\t}\n}"
1065 self.struct_file_suffixes[human_ty] = suffixes
1066 self.obj_defined([human_ty], "structs")
1068 return f"""{self.hu_struct_file_prefix}
1070 export class {human_ty} extends CommonBase {{
1071 protected constructor(_dummy: object, ptr: number) {{
1072 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1075 public static constr_from_ptr(ptr: number): {human_ty} {{
1076 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1077 return new {human_ty}_OK(null, ptr);
1079 return new {human_ty}_Err(null, ptr);
1084 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1085 has_return_value = return_c_ty != 'void'
1086 needs_decoding = return_c_ty in self.wasm_decoding_map
1087 return_statement = 'return nativeResponseValue;'
1088 if not has_return_value:
1089 return_statement = '// debug statements here'
1090 elif needs_decoding:
1091 converter = self.wasm_decoding_map[return_c_ty]
1092 return_statement = f"return {converter}(nativeResponseValue);"
1094 return f"""\texport function {method_name}({method_argument_string}): {return_java_ty} {{
1095 if(!isWasmInitialized) {{
1096 throw new Error("initializeWasm() must be awaited first!");
1098 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1102 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):
1105 out_java_struct = None
1108 out_c += (self.c_fn_ty_pfx)
1109 out_c += (return_type_info.c_ty)
1110 out_java += (return_type_info.java_ty)
1111 if return_type_info.ret_conv is not None:
1112 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1113 out_java += (" " + method_name + "(")
1114 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1116 method_argument_string = ""
1117 native_call_argument_string = ""
1118 for idx, arg_conv_info in enumerate(argument_types):
1120 method_argument_string += (", ")
1121 native_call_argument_string += ', '
1123 if arg_conv_info.c_ty != "void":
1124 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1125 needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
1126 native_argument = arg_conv_info.arg_name
1128 converter = self.wasm_encoding_map[arg_conv_info.c_ty]
1129 native_argument = f"{converter}({arg_conv_info.arg_name})"
1130 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1131 native_call_argument_string += native_argument
1132 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)
1134 out_java_struct = ""
1136 out_java_struct += ("\t// Skipped " + method_name + "\n")
1139 out_java_struct += (
1140 "\tpublic static constructor_" + meth_n + "(")
1142 out_java_struct += ("\tpublic " + meth_n + "(")
1143 for idx, arg in enumerate(argument_types):
1145 if not takes_self or idx > 1:
1146 out_java_struct += (", ")
1149 if arg.java_ty != "void":
1150 if arg.arg_name in default_constructor_args:
1151 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1152 if explode_idx != 0:
1153 out_java_struct += (", ")
1154 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1156 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1159 if out_java_struct is not None:
1160 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1161 for info in argument_types:
1162 if info.arg_conv is not None:
1163 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1164 if return_type_info.ret_conv is not None:
1165 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1166 elif return_type_info.c_ty != "void":
1167 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1170 if c_call_string is None:
1171 out_c += (method_name + "(")
1173 out_c += (c_call_string)
1174 for idx, info in enumerate(argument_types):
1175 if info.arg_conv_name is not None:
1178 elif c_call_string is not None:
1180 out_c += (info.arg_conv_name)
1182 if return_type_info.ret_conv is not None:
1183 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1186 for info in argument_types:
1187 if info.arg_conv_cleanup is not None:
1188 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1189 if return_type_info.ret_conv is not None:
1190 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1191 elif return_type_info.c_ty != "void":
1192 out_c += ("\n\treturn ret_val;")
1193 out_c += ("\n}\n\n")
1196 out_java_struct += ("\t\t")
1197 if return_type_info.java_ty != "void":
1198 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1199 out_java_struct += ("bindings." + method_name + "(")
1200 for idx, info in enumerate(argument_types):
1202 out_java_struct += (", ")
1203 if idx == 0 and takes_self:
1204 out_java_struct += ("this.ptr")
1205 elif info.arg_name in default_constructor_args:
1206 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1207 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1208 if explode_idx != 0:
1209 out_java_struct += (", ")
1210 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1211 if explode_arg.from_hu_conv is not None:
1212 out_java_struct += (
1213 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1215 out_java_struct += (expl_arg_name)
1216 out_java_struct += (")")
1217 elif info.from_hu_conv is not None:
1218 out_java_struct += (info.from_hu_conv[0])
1220 out_java_struct += (info.arg_name)
1221 out_java_struct += (");\n")
1222 if return_type_info.to_hu_conv is not None:
1224 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1225 return_type_info.to_hu_conv_name) + "\n")
1227 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1229 for idx, info in enumerate(argument_types):
1230 if idx == 0 and takes_self:
1232 elif info.arg_name in default_constructor_args:
1233 for explode_arg in default_constructor_args[info.arg_name]:
1234 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1235 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1236 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1237 expl_arg_name).replace(
1238 "this", return_type_info.to_hu_conv_name) + ";\n")
1239 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1240 if not takes_self and return_type_info.to_hu_conv_name is not None:
1241 out_java_struct += (
1242 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1244 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1246 if return_type_info.to_hu_conv_name is not None:
1247 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1248 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1249 out_java_struct += ("\t\treturn ret;\n")
1250 out_java_struct += ("\t}\n\n")
1252 return (out_java, out_c, out_java_struct)
1255 for struct in self.struct_file_suffixes:
1256 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1257 src.write(self.struct_file_suffixes[struct])