1 from bindingstypes import ConvInfo
4 def first_to_lower(string: str) -> str:
6 return first.lower() + string[1:]
14 def __init__(self, DEBUG: bool, target: Target, outdir: str, **kwargs):
16 self.struct_file_suffixes = {}
17 self.function_ptr_counter = 0
18 self.function_ptrs = {}
19 self.c_type_map = dict(
20 uint8_t = ['number', 'Uint8Array'],
21 uint16_t = ['number', 'Uint16Array'],
22 uint32_t = ['number', 'Uint32Array'],
23 uint64_t = ['number'],
26 self.wasm_decoding_map = dict(
27 int8_tArray = 'decodeUint8Array'
30 self.wasm_encoding_map = dict(
31 int8_tArray = 'encodeUint8Array',
34 self.to_hu_conv_templates = dict(
35 ptr = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
36 default = 'const {var_name}_hu_conv: {human_type} = new {human_type}(null, {var_name});',
39 self.bindings_header = self.wasm_import_header(target) + """
40 export class VecOrSliceDef {
41 public dataptr: number;
42 public datalen: number;
43 public stride: number;
44 public constructor(dataptr: number, datalen: number, stride: number) {
45 this.dataptr = dataptr;
46 this.datalen = datalen;
54 System.loadLibrary(\"lightningjni\");
55 init(java.lang.Enum.class, VecOrSliceDef.class);
59 static native void init(java.lang.Class c, java.lang.Class slicedef);
60 static native void init_class_cache();
62 public static native boolean deref_bool(long ptr);
63 public static native long deref_long(long ptr);
64 public static native void free_heap_ptr(long ptr);
65 public static native byte[] read_bytes(long ptr, long len);
66 public static native byte[] get_u8_slice_bytes(long slice_ptr);
67 public static native long bytes_to_u8_vec(byte[] bytes);
68 public static native long new_txpointer_copy_data(byte[] txdata);
69 public static native void txpointer_free(long ptr);
70 public static native byte[] txpointer_get_buffer(long ptr);
71 public static native long vec_slice_len(long vec);
72 public static native long new_empty_slice_vec();
77 self.bindings_version_file = ""
79 self.bindings_footer = ""
81 self.common_base = """
82 function freer(f: () => void) { f() }
83 const finalizer = new FinalizationRegistry(freer);
84 function get_freeer(ptr: number, free_fn: (ptr: number) => void) {
90 export default class CommonBase {
91 protected ptr: number;
92 protected ptrs_to: object[] = [];
93 protected constructor(ptr: number, free_fn: (ptr: number) => void) {
95 if (Number.isFinite(ptr) && ptr != 0){
96 finalizer.register(this, get_freeer(ptr, free_fn));
99 // In Java, protected means "any subclass can access fields on any other subclass'"
100 // In TypeScript, protected means "any subclass can access parent fields on instances of itself"
101 // To work around this, we add accessors for other instances' protected fields here.
102 protected static add_ref_from(holder: CommonBase, referent: object) {
103 holder.ptrs_to.push(referent);
105 protected static get_ptr_of(o: CommonBase) {
108 protected static set_null_skip_free(o: CommonBase) {
110 finalizer.unregister(o);
115 self.txout_defn = """export class TxOut extends CommonBase {
116 /** The script_pubkey in this output */
117 public script_pubkey: Uint8Array;
118 /** The value, in satoshis, of this output */
119 public value: number;
122 public constructor(_dummy: object, ptr: number) {
123 super(ptr, bindings.TxOut_free);
124 this.script_pubkey = bindings.TxOut_get_script_pubkey(ptr);
125 this.value = bindings.TxOut_get_value(ptr);
127 public constructor_new(value: number, script_pubkey: Uint8Array): TxOut {
128 return new TxOut(null, bindings.TxOut_new(script_pubkey, value));
131 self.obj_defined(["TxOut"], "structs")
133 self.c_file_pfx = """#include "js-wasm.h"
134 #include <stdatomic.h>
135 #include <lightning.h>
137 // These should be provided...somehow...
138 void *memset(void *s, int c, size_t n);
139 void *memcpy(void *dest, const void *src, size_t n);
140 int memcmp(const void *s1, const void *s2, size_t n);
142 void __attribute__((noreturn)) abort(void);
143 static inline void assert(bool expression) {
144 if (!expression) { abort(); }
149 self.c_file_pfx = self.c_file_pfx + """
150 void *malloc(size_t size);
151 void free(void *ptr);
153 #define MALLOC(a, _) malloc(a)
154 #define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
155 #define DO_ASSERT(a) (void)(a)
157 #define CHECK_ACCESS(p)
158 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
161 self.c_file_pfx = self.c_file_pfx + """
162 // Always run a, then assert it is true:
163 #define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
164 // Assert a is true or do nothing
165 #define CHECK(a) DO_ASSERT(a)
167 // Running a leak check across all the allocations and frees of the JDK is a mess,
168 // so instead we implement our own naive leak checker here, relying on the -wrap
169 // linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
170 // and free'd in Rust or C across the generated bindings shared library.
173 typedef struct allocation {
174 struct allocation* next;
176 const char* struct_name;
178 static allocation* allocation_ll = NULL;
180 void* __real_malloc(size_t len);
181 void* __real_calloc(size_t nmemb, size_t len);
182 static void new_allocation(void* res, const char* struct_name) {
183 allocation* new_alloc = __real_malloc(sizeof(allocation));
184 new_alloc->ptr = res;
185 new_alloc->struct_name = struct_name;
186 new_alloc->next = allocation_ll;
187 allocation_ll = new_alloc;
189 static void* MALLOC(size_t len, const char* struct_name) {
190 void* res = __real_malloc(len);
191 new_allocation(res, struct_name);
194 void __real_free(void* ptr);
195 static void alloc_freed(void* ptr) {
196 allocation* p = NULL;
197 allocation* it = allocation_ll;
198 while (it->ptr != ptr) {
199 p = it; it = it->next;
201 //XXX: fprintf(stderr, "Tried to free unknown pointer %p\\n", ptr);
202 return; // addrsan should catch malloc-unknown and print more info than we have
205 if (p) { p->next = it->next; } else { allocation_ll = it->next; }
206 DO_ASSERT(it->ptr == ptr);
209 static void FREE(void* ptr) {
210 if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
215 static void CHECK_ACCESS(const void* ptr) {
216 allocation* it = allocation_ll;
217 while (it->ptr != ptr) {
220 return; // addrsan should catch malloc-unknown and print more info than we have
224 #define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
225 if (v.is_owned && v.inner != NULL) { \\
226 const void *p = __unmangle_inner_ptr(v.inner); \\
232 void* __wrap_malloc(size_t len) {
233 void* res = __real_malloc(len);
234 new_allocation(res, "malloc call");
237 void* __wrap_calloc(size_t nmemb, size_t len) {
238 void* res = __real_calloc(nmemb, len);
239 new_allocation(res, "calloc call");
242 void __wrap_free(void* ptr) {
243 if (ptr == NULL) return;
248 void* __real_realloc(void* ptr, size_t newlen);
249 void* __wrap_realloc(void* ptr, size_t len) {
250 if (ptr != NULL) alloc_freed(ptr);
251 void* res = __real_realloc(ptr, len);
252 new_allocation(res, "realloc call");
255 void __wrap_reallocarray(void* ptr, size_t new_sz) {
256 // Rust doesn't seem to use reallocarray currently
260 void __attribute__((destructor)) check_leaks() {
261 for (allocation* a = allocation_ll; a != NULL; a = a->next) {
262 //XXX: fprintf(stderr, "%s %p remains\\n", a->struct_name, a->ptr);
264 DO_ASSERT(allocation_ll == NULL);
267 self.c_file_pfx = self.c_file_pfx + """
268 // We assume that CVec_u8Z and u8slice are the same size and layout (and thus pointers to the two can be mixed)
269 _Static_assert(sizeof(LDKCVec_u8Z) == sizeof(LDKu8slice), "Vec<u8> and [u8] need to have been mapped identically");
270 _Static_assert(offsetof(LDKCVec_u8Z, data) == offsetof(LDKu8slice, data), "Vec<u8> and [u8] need to have been mapped identically");
271 _Static_assert(offsetof(LDKCVec_u8Z, datalen) == offsetof(LDKu8slice, datalen), "Vec<u8> and [u8] need to have been mapped identically");
273 _Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
275 #define DECL_ARR_TYPE(ty, name) \\
276 struct name##array { \\
280 typedef struct name##array * name##Array; \\
281 static inline name##Array init_##name##Array(size_t arr_len) { \\
282 name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \\
283 arr->arr_len = arr_len; \\
287 DECL_ARR_TYPE(int64_t, int64_t);
288 DECL_ARR_TYPE(int8_t, int8_t);
289 DECL_ARR_TYPE(uint32_t, uint32_t);
290 DECL_ARR_TYPE(void*, ptr);
291 DECL_ARR_TYPE(char, char);
292 typedef charArray jstring;
294 static inline jstring str_ref_to_ts(const char* chars, size_t len) {
295 charArray arr = init_charArray(len);
296 memcpy(arr->elems, chars, len);
299 static inline LDKStr str_ref_to_owned_c(const jstring str) {
300 char* newchars = MALLOC(str->arr_len + 1, "String chars");
301 memcpy(newchars, str->elems, str->arr_len);
302 newchars[str->arr_len] = 0;
306 .chars_is_owned = true
311 typedef bool jboolean;
313 uint32_t __attribute__((visibility("default"))) TS_malloc(uint32_t size) {
314 return (uint32_t)MALLOC(size, "JS-Called malloc");
316 void __attribute__((visibility("default"))) TS_free(uint32_t ptr) {
321 self.c_version_file = ""
323 self.hu_struct_file_prefix = """
324 import CommonBase from './CommonBase.mjs';
325 import * as bindings from '../bindings.mjs'
326 import * as InternalUtils from '../InternalUtils.mjs'
329 self.util_fn_pfx = self.hu_struct_file_prefix + "\nexport class UtilMethods extends CommonBase {\n"
330 self.util_fn_sfx = "}"
331 self.c_fn_ty_pfx = ""
332 self.file_ext = ".mts"
333 self.ptr_c_ty = "uint32_t"
334 self.ptr_native_ty = "number"
335 self.result_c_ty = "uint32_t"
336 self.ptr_arr = "ptrArray"
337 self.is_arr_some_check = ("", " != 0")
338 self.get_native_arr_len_call = ("", "->arr_len")
340 with open(outdir + "/InternalUtils.mts", "w") as f:
341 f.write("export function check_arr_len(arr: Uint8Array, len: number): Uint8Array {\n")
342 f.write("\tif (arr.length != len) { throw new Error(\"Expected array of length \" + len + \"got \" + arr.length); }\n")
343 f.write("\treturn arr;\n")
346 def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
348 def create_native_arr_call(self, arr_len, ty_info):
349 if ty_info.c_ty == "ptrArray":
350 assert ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array")
351 return "init_" + ty_info.c_ty + "(" + arr_len + ")"
352 def set_native_arr_contents(self, arr_name, arr_len, ty_info):
353 if ty_info.c_ty == "int8_tArray":
354 return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
357 def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
358 if ty_info.c_ty == "int8_tArray":
360 return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + arr_len + ")"
361 if ty_info.c_ty == "ptrArray":
362 return "(void*) " + arr_name + "->elems"
365 return arr_name + "->elems"
366 def get_native_arr_elem(self, arr_name, idxc, ty_info):
367 assert False # Only called if above is None
368 def get_native_arr_ptr_call(self, ty_info):
369 if ty_info.subty is not None:
370 return "(" + ty_info.subty.c_ty + "*)(", " + 4)"
371 return "(" + ty_info.c_ty + "*)(", " + 4)"
372 def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
374 def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
375 if ty_info.c_ty == "int8_tArray":
380 def map_hu_array_elems(self, arr_name, conv_name, arr_ty, elem_ty):
381 return arr_name + " != null ? " + arr_name + ".map(" + conv_name + " => " + elem_ty.from_hu_conv[0] + ") : null"
383 def str_ref_to_native_call(self, var_name, str_len):
384 return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
385 def str_ref_to_c_call(self, var_name):
386 return "str_ref_to_owned_c(" + var_name + ")"
388 def c_fn_name_define_pfx(self, fn_name, have_args):
389 return " __attribute__((visibility(\"default\"))) TS_" + fn_name + "("
391 def wasm_import_header(self, target):
393 const imports: any = {};
396 imports.env.tableBase = 0;
397 imports.env.table = new WebAssembly.Table({initial: 4, element: 'anyfunc'});
399 imports.env["abort"] = function () {
400 console.error("ABORT");
402 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) {
403 console.log('function called from wasm:', fn, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
405 imports.env["js_free_function_ptr"] = function(fn: number) {
406 console.log("function ptr free'd from wasm:", fn);
409 imports.wasi_snapshot_preview1 = {
411 console.log("ABORT");
413 "random_get" : () => {
414 console.log("RAND GET");
416 "environ_sizes_get" : () => {
417 console.log("wasi_snapshot_preview1:environ_sizes_get");
419 "proc_exit" : () => {
420 console.log("wasi_snapshot_preview1:proc_exit");
422 "environ_get" : () => {
423 console.log("wasi_snapshot_preview1:environ_get");
427 var wasm: any = null;
428 let isWasmInitialized: boolean = false;
431 if target == Target.NODEJS:
432 res += """import * as fs from 'fs';
433 export async function initializeWasm(path: string) {
434 const source = fs.readFileSync(path);
435 const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports);
436 wasm = wasmInstance.exports;
437 isWasmInitialized = true;
442 export async function initializeWasm(uri: string) {
443 const stream = fetch(uri);
444 const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
445 wasm = wasmInstance.exports;
446 isWasmInitialized = true;
456 const nextMultipleOfFour = (value: number) => {
457 return Math.ceil(value / 4) * 4;
460 const encodeUint8Array = (inputArray: Uint8Array) => {
461 const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
462 const arrayLengthView = new Uint32Array(wasm.memory.buffer, cArrayPointer, 1);
463 arrayLengthView[0] = inputArray.length;
464 const arrayMemoryView = new Uint8Array(wasm.memory.buffer, cArrayPointer + 4, inputArray.length);
465 arrayMemoryView.set(inputArray);
466 return cArrayPointer;
469 const encodeUint32Array = (inputArray: Uint32Array) => {
470 const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
471 const arrayMemoryView = new Uint32Array(wasm.memory.buffer, cArrayPointer, inputArray.length);
472 arrayMemoryView.set(inputArray, 1);
473 arrayMemoryView[0] = inputArray.length;
474 return cArrayPointer;
477 const getArrayLength = (arrayPointer: number) => {
478 const arraySizeViewer = new Uint32Array(
479 wasm.memory.buffer, // value
480 arrayPointer, // offset
483 return arraySizeViewer[0];
485 const decodeUint8Array = (arrayPointer: number, free = true) => {
486 const arraySize = getArrayLength(arrayPointer);
487 const actualArrayViewer = new Uint8Array(
488 wasm.memory.buffer, // value
489 arrayPointer + 4, // offset (ignoring length bytes)
490 arraySize // uint8 count
492 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
493 // will free the underlying memory when it becomes unreachable instead of copying here.
494 const actualArray = actualArrayViewer.slice(0, arraySize);
496 wasm.TS_free(arrayPointer);
500 const decodeUint32Array = (arrayPointer: number, free = true) => {
501 const arraySize = getArrayLength(arrayPointer);
502 const actualArrayViewer = new Uint32Array(
503 wasm.memory.buffer, // value
504 arrayPointer + 4, // offset (ignoring length bytes)
505 arraySize // uint32 count
507 // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
508 // will free the underlying memory when it becomes unreachable instead of copying here.
509 const actualArray = actualArrayViewer.slice(0, arraySize);
511 wasm.TS_free(arrayPointer);
516 const encodeString = (string: string) => {
517 // make malloc count divisible by 4
518 const memoryNeed = nextMultipleOfFour(string.length + 1);
519 const stringPointer = wasm.TS_malloc(memoryNeed);
520 const stringMemoryView = new Uint8Array(
521 wasm.memory.buffer, // value
522 stringPointer, // offset
523 string.length + 1 // length
525 for (let i = 0; i < string.length; i++) {
526 stringMemoryView[i] = string.charCodeAt(i);
528 stringMemoryView[string.length] = 0;
529 return stringPointer;
532 const decodeString = (stringPointer: number, free = true) => {
533 const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer);
537 while (memoryView[cursor] !== 0) {
538 result += String.fromCharCode(memoryView[cursor]);
543 wasm.wasm_free(stringPointer);
553 def constr_hu_array(self, ty_info, arr_len):
554 return "new Array(" + arr_len + ").fill(null)"
556 def var_decl_statement(self, ty_string, var_name, statement):
557 return "const " + var_name + ": " + ty_string + " = " + statement
559 def for_n_in_range(self, n, minimum, maximum):
560 return "for (var " + n + " = " + minimum + "; " + n + " < " + maximum + "; " + n + "++) {"
561 def for_n_in_arr(self, n, arr_name, arr_elem_ty):
562 return (arr_name + ".forEach((" + n + ": " + arr_elem_ty.java_hu_ty + ") => { ", " })")
564 def get_ptr(self, var):
565 return "CommonBase.get_ptr_of(" + var + ")"
566 def set_null_skip_free(self, var):
567 return "CommonBase.set_null_skip_free(" + var + ");"
569 def add_ref(self, holder, referent):
570 return "CommonBase.add_ref_from(" + holder + ", " + referent + ")"
572 def obj_defined(self, struct_names, folder):
573 with open(self.outdir + "/index.mts", 'a') as index:
574 index.write(f"export * from './{folder}/{struct_names[0]}.mjs';\n")
575 with open(self.outdir + "/imports.mts.part", 'a') as imports:
576 imports.write(f"import {{ {', '.join(struct_names)} }} from '../{folder}/{struct_names[0]}.mjs';\n")
578 def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
579 out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
580 out_c = out_c + "\tswitch (ord) {\n"
583 out_typescript_enum_fields = ""
585 for var, var_docs in variants:
586 out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
588 if var_docs is not None:
589 out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
590 out_typescript_enum_fields += f"{var},\n\t\t\t\t"
591 out_c = out_c + "\t}\n"
592 out_c = out_c + "\tabort();\n"
593 out_c = out_c + "}\n"
595 out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
596 out_c = out_c + "\tswitch (val) {\n"
598 for var, _ in variants:
599 out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
601 out_c = out_c + "\t\tdefault: abort();\n"
602 out_c = out_c + "\t}\n"
603 out_c = out_c + "}\n"
605 out_typescript = f"""
606 export enum {struct_name} {{
607 {out_typescript_enum_fields}
610 out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
611 self.obj_defined([struct_name], "enums")
612 return (out_c, out_typescript_enum, out_typescript)
614 def c_unitary_enum_to_native_call(self, ty_info):
615 return (ty_info.rust_obj + "_to_js(", ")")
616 def native_unitary_enum_to_c_call(self, ty_info):
617 return (ty_info.rust_obj + "_from_js(", ")")
619 def c_complex_enum_pass_ty(self, struct_name):
622 def c_constr_native_complex_enum(self, struct_name, variant, c_params):
623 ret = "0 /* " + struct_name + " - " + variant + " */"
624 for param in c_params:
625 ret = ret + "; (void) " + param
628 def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
629 out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
631 super_instantiator = ""
632 bindings_instantiator = ""
633 pointer_to_adder = ""
634 impl_constructor_arguments = ""
635 for var in flattened_field_var_conversions:
636 if isinstance(var, ConvInfo):
637 impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
638 super_instantiator += first_to_lower(var.arg_name) + ", "
639 if var.from_hu_conv is not None:
640 bindings_instantiator += ", " + var.from_hu_conv[0]
641 if var.from_hu_conv[1] != "":
642 pointer_to_adder += "\t\t\t" + var.from_hu_conv[1] + ";\n"
644 bindings_instantiator += ", " + first_to_lower(var.arg_name)
646 bindings_instantiator += ", " + first_to_lower(var[1]) + ".bindings_instance"
647 super_instantiator += first_to_lower(var[1]) + "_impl, "
648 pointer_to_adder += "\t\timpl_holder.held.ptrs_to.push(" + first_to_lower(var[1]) + ");\n"
649 impl_constructor_arguments += f", {first_to_lower(var[1])}_impl: {var[0].replace('LDK', '')}Interface"
651 super_constructor_statements = ""
652 trait_constructor_arguments = ""
653 for var in field_var_conversions:
654 if isinstance(var, ConvInfo):
655 trait_constructor_arguments += ", " + var.arg_name
657 super_constructor_statements += "\t\tconst " + first_to_lower(var[1]) + " = " + var[1] + ".new_impl(" + super_instantiator + ");\n"
658 trait_constructor_arguments += ", " + first_to_lower(var[1]) + ".bindings_instance"
659 for suparg in var[2]:
660 if isinstance(suparg, ConvInfo):
661 trait_constructor_arguments += ", " + suparg.arg_name
663 trait_constructor_arguments += ", " + suparg[1]
665 # BUILD INTERFACE METHODS
666 out_java_interface = ""
667 out_interface_implementation_overrides = ""
669 for fn_line in field_function_lines:
670 java_method_descriptor = ""
671 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
672 out_java_interface += "\t" + fn_line.fn_name + "("
673 out_interface_implementation_overrides += f"\t\t\t{fn_line.fn_name} ("
675 for idx, arg_conv_info in enumerate(fn_line.args_ty):
677 out_java_interface += ", "
678 out_interface_implementation_overrides += ", "
679 out_java_interface += f"{arg_conv_info.arg_name}: {arg_conv_info.java_hu_ty}"
680 out_interface_implementation_overrides += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
681 java_method_descriptor += arg_conv_info.java_fn_ty_arg
682 out_java_interface += f"): {fn_line.ret_ty_info.java_hu_ty};\n"
683 java_method_descriptor += ")" + fn_line.ret_ty_info.java_fn_ty_arg
684 java_methods.append((fn_line.fn_name, java_method_descriptor))
686 out_interface_implementation_overrides += f"): {fn_line.ret_ty_info.java_ty} {{\n"
688 for arg_info in fn_line.args_ty:
689 if arg_info.to_hu_conv is not None:
690 out_interface_implementation_overrides += "\t\t\t\t" + arg_info.to_hu_conv.replace("\n", "\n\t\t\t\t") + "\n"
692 if fn_line.ret_ty_info.java_ty != "void":
693 out_interface_implementation_overrides += "\t\t\t\tconst ret: " + fn_line.ret_ty_info.java_hu_ty + " = arg." + fn_line.fn_name + "("
695 out_interface_implementation_overrides += f"\t\t\t\targ." + fn_line.fn_name + "("
697 for idx, arg_info in enumerate(fn_line.args_ty):
699 out_interface_implementation_overrides += ", "
700 if arg_info.to_hu_conv_name is not None:
701 out_interface_implementation_overrides += arg_info.to_hu_conv_name
703 out_interface_implementation_overrides += arg_info.arg_name
705 out_interface_implementation_overrides += ");\n"
706 if fn_line.ret_ty_info.java_ty != "void":
707 if fn_line.ret_ty_info.from_hu_conv is not None:
708 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"
709 if fn_line.ret_ty_info.from_hu_conv[1] != "":
710 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"
711 #if fn_line.ret_ty_info.rust_obj in result_types:
712 # XXX: We need to handle this in conversion logic so that its cross-language!
713 # Avoid double-free by breaking the result - we should learn to clone these and then we can be safe instead
714 # out_interface_implementation_overrides = out_interface_implementation_overrides + "\t\t\t\tret.ptr = 0;\n"
715 out_interface_implementation_overrides += "\t\t\t\treturn result;\n"
717 out_interface_implementation_overrides += "\t\t\t\treturn ret;\n"
718 out_interface_implementation_overrides += f"\t\t\t}},\n"
720 out_typescript_human = f"""
721 {self.hu_struct_file_prefix}
723 export interface {struct_name.replace("LDK", "")}Interface {{
724 {out_java_interface}}}
726 class {struct_name}Holder {{
727 held: {struct_name.replace("LDK", "")};
730 export class {struct_name.replace("LDK","")} extends CommonBase {{
732 public bindings_instance?: bindings.{struct_name};
735 constructor(_dummy: object, ptr: number) {{
736 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
737 this.bindings_instance = null;
740 static new_impl(arg: {struct_name.replace("LDK", "")}Interface{impl_constructor_arguments}): {struct_name.replace("LDK", "")} {{
741 const impl_holder: {struct_name}Holder = new {struct_name}Holder();
742 let structImplementation = {{
743 {out_interface_implementation_overrides} }} as bindings.{struct_name};
744 {super_constructor_statements} const ptr: number = bindings.{struct_name}_new(structImplementation{bindings_instantiator});
746 impl_holder.held = new {struct_name.replace("LDK", "")}(null, ptr);
747 impl_holder.held.bindings_instance = structImplementation;
748 {pointer_to_adder} return impl_holder.held;
751 self.obj_defined([struct_name.replace("LDK", ""), struct_name.replace("LDK", "") + "Interface"], "structs")
753 out_typescript_bindings += "export interface " + struct_name + " {\n"
755 for fn_line in field_function_lines:
756 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
757 out_typescript_bindings += f"\t{fn_line.fn_name} ("
759 for idx, arg_conv_info in enumerate(fn_line.args_ty):
761 out_typescript_bindings = out_typescript_bindings + ", "
762 out_typescript_bindings += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
764 out_typescript_bindings += f"): {fn_line.ret_ty_info.java_ty};\n"
766 out_typescript_bindings += "}\n\n"
768 out_typescript_bindings += f"export function {struct_name}_new(impl: {struct_name}"
769 for var in flattened_field_var_conversions:
770 if isinstance(var, ConvInfo):
771 out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
773 out_typescript_bindings += f", {var[1]}: {var[0]}"
775 out_typescript_bindings += f"""): number {{
776 throw new Error('unimplemented'); // TODO: bind to WASM
780 out_typescript_bindings += '\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: END\n\n\n'
782 # Now that we've written out our java code (and created java_meths), generate C
783 out_c = "typedef struct " + struct_name + "_JCalls {\n"
784 out_c = out_c + "\tatomic_size_t refcnt;\n"
785 for var in flattened_field_var_conversions:
786 if isinstance(var, ConvInfo):
787 # We're a regular ol' field
791 out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
792 for fn in field_function_lines:
793 if fn.fn_name != "free" and fn.fn_name != "cloned":
794 out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n"
795 out_c = out_c + "} " + struct_name + "_JCalls;\n"
797 for fn_line in field_function_lines:
798 if fn_line.fn_name == "free":
799 out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
800 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
801 out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
802 for fn in field_function_lines:
803 if fn.fn_name != "free" and fn.fn_name != "cloned":
804 out_c = out_c + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n"
805 out_c = out_c + "\t\tFREE(j_calls);\n"
806 out_c = out_c + "\t}\n}\n"
808 for idx, fn_line in enumerate(field_function_lines):
809 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
810 assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
811 out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
812 if fn_line.self_is_const:
813 out_c = out_c + "const void* this_arg"
815 out_c = out_c + "void* this_arg"
817 for idx, arg in enumerate(fn_line.args_ty):
818 out_c = out_c + ", " + arg.ty_info.get_full_rust_ty()[0] + " " + arg.arg_name + arg.ty_info.get_full_rust_ty()[1]
820 out_c = out_c + ") {\n"
821 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
823 for arg_info in fn_line.args_ty:
824 if arg_info.ret_conv is not None:
825 out_c = out_c + "\t" + arg_info.ret_conv[0].replace('\n', '\n\t')
826 out_c = out_c + arg_info.arg_name
827 out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
829 if fn_line.ret_ty_info.c_ty.endswith("Array"):
830 out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
831 out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
832 elif fn_line.ret_ty_info.java_ty == "void":
833 out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
834 elif fn_line.ret_ty_info.java_ty == "String":
835 out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
836 elif not fn_line.ret_ty_info.passed_as_ptr:
837 out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
839 out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
841 for idx, arg_info in enumerate(fn_line.args_ty):
842 if arg_info.ret_conv is not None:
843 out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
845 out_c = out_c + ", (uint32_t)" + arg_info.arg_name
846 out_c = out_c + ");\n"
847 if fn_line.ret_ty_info.arg_conv is not None:
848 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"
850 out_c = out_c + "}\n"
852 # Write out a clone function whether we need one or not, as we use them in moving to rust
853 out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
854 out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
855 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
856 for var in field_var_conversions:
857 if not isinstance(var, ConvInfo):
858 out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
859 out_c = out_c + "}\n"
861 out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o"
862 for var in flattened_field_var_conversions:
863 if isinstance(var, ConvInfo):
864 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
866 out_c = out_c + ", /*TODO: JS Object Reference */void* " + var[1]
867 out_c = out_c + ") {\n"
869 out_c = out_c + "\t" + struct_name + "_JCalls *calls = MALLOC(sizeof(" + struct_name + "_JCalls), \"" + struct_name + "_JCalls\");\n"
870 out_c = out_c + "\tatomic_init(&calls->refcnt, 1);\n"
871 out_c = out_c + "\t//TODO: Assign calls->o from o\n"
873 for (fn_name, java_meth_descr) in java_meths:
874 if fn_name != "free" and fn_name != "cloned":
875 out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
876 out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
878 for var in flattened_field_var_conversions:
879 if isinstance(var, ConvInfo) and var.arg_conv is not None:
880 out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
881 out_c = out_c + "\n\t" + struct_name + " ret = {\n"
882 out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
883 for fn_line in field_function_lines:
884 if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
885 out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
886 elif fn_line.fn_name == "free":
887 out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
889 out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
890 for var in field_var_conversions:
891 if isinstance(var, ConvInfo):
892 if var.arg_conv_name is not None:
893 out_c = out_c + "\t\t." + var.arg_name + " = " + var.arg_conv_name + ",\n"
894 out_c = out_c + "\t\t.set_" + var.arg_name + " = NULL,\n"
896 out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
897 out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
899 out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
900 for suparg in var[2]:
901 if isinstance(suparg, ConvInfo):
902 out_c += ", " + suparg.arg_name
904 out_c += ", " + suparg[1]
906 out_c = out_c + "\t};\n"
907 for var in flattened_field_var_conversions:
908 if not isinstance(var, ConvInfo):
909 out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
910 out_c = out_c + "\treturn ret;\n"
911 out_c = out_c + "}\n"
913 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"
914 for var in flattened_field_var_conversions:
915 if isinstance(var, ConvInfo):
916 out_c = out_c + ", " + var.c_ty + " " + var.arg_name
918 out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1]
919 out_c = out_c + ") {\n"
920 out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
921 out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
922 for var in flattened_field_var_conversions:
923 if isinstance(var, ConvInfo):
924 out_c = out_c + ", " + var.arg_name
926 out_c = out_c + ", " + var[1]
927 out_c = out_c + ");\n"
928 out_c = out_c + "\treturn (long)res_ptr;\n"
929 out_c = out_c + "}\n"
931 return (out_typescript_bindings, out_typescript_human, out_c)
933 def trait_struct_inc_refcnt(self, ty_info):
936 def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
937 bindings_type = struct_name.replace("LDK", "")
938 java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
944 out_java_enum += (self.hu_struct_file_prefix)
947 java_hu_class += "export class " + java_hu_type + " extends CommonBase {\n"
948 java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr, bindings." + bindings_type + "_free); }\n"
949 java_hu_class += "\t/* @internal */\n"
950 java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
951 java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n"
952 java_hu_subclasses = ""
954 out_java += "export class " + struct_name + " {\n"
955 out_java += "\tprotected constructor() {}\n"
957 for var in variant_list:
958 java_subclasses += "export class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n"
959 java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
960 java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n"
961 java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n"
962 init_meth_params = ""
964 for idx, (field_ty, field_docs) in enumerate(var.fields):
965 java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
966 if field_ty.to_hu_conv is not None:
967 hu_conv_body = hu_conv_body + "\t\tconst " + field_ty.arg_name + f": {field_ty.java_ty} = obj." + field_ty.arg_name + ";\n"
968 hu_conv_body = hu_conv_body + "\t\t" + field_ty.to_hu_conv.replace("\n", "\n\t\t\t") + "\n"
969 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = " + field_ty.to_hu_conv_name + ";\n"
971 hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
973 init_meth_params += ", "
974 init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty
975 java_subclasses += "\tconstructor(" + init_meth_params + ") { super(); }\n"
976 java_subclasses += "}\n"
977 java_hu_class += "\t\t}\n"
978 java_hu_subclasses += "\t/* @internal */\n"
979 java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
980 java_hu_subclasses = java_hu_subclasses + hu_conv_body
981 java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
983 out_java += java_subclasses
984 java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n"
985 out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
987 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")
988 out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n")
989 out_c += ("\tswitch(obj->tag) {\n")
990 for var in variant_list:
991 out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
993 for idx, (field_map, _) in enumerate(var.fields):
994 if field_map.ret_conv is not None:
995 out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
996 if var.tuple_variant:
997 out_c += "obj->" + camel_to_snake(var.var_name)
999 out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
1000 out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
1001 c_params.append(field_map.ret_conv_name)
1003 if var.tuple_variant:
1004 c_params.append("obj->" + camel_to_snake(var.var_name))
1006 c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
1007 out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
1008 out_c += ("\t\t}\n")
1009 out_c += ("\t\tdefault: abort();\n")
1010 out_c += ("\t}\n}\n")
1011 out_java_enum += java_hu_class
1012 self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
1013 self.obj_defined([java_hu_type], "structs")
1014 return (out_java, out_java_enum, out_c)
1016 def map_opaque_struct(self, struct_name, struct_doc_comment):
1017 implementations = ""
1020 hu_name = struct_name.replace("LDKC2Tuple", "TwoTuple").replace("LDKC3Tuple", "ThreeTuple").replace("LDK", "")
1021 out_opaque_struct_human = f"{self.hu_struct_file_prefix}"
1022 if struct_name.startswith("LDKLocked"):
1023 out_opaque_struct_human += "/** XXX: DO NOT USE THIS - it remains locked until the GC runs (if that ever happens */"
1024 out_opaque_struct_human += f"""
1025 export class {hu_name} extends CommonBase {implementations}{{
1027 public constructor(_dummy: object, ptr: number) {{
1028 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1032 self.obj_defined([hu_name], "structs")
1033 return out_opaque_struct_human
1035 def map_tuple(self, struct_name):
1036 return self.map_opaque_struct(struct_name, "A Tuple")
1038 def map_result(self, struct_name, res_map, err_map):
1039 human_ty = struct_name.replace("LDKCResult", "Result")
1041 suffixes = f"export class {human_ty}_OK extends {human_ty} {{\n"
1042 if res_map.java_hu_ty != "void":
1043 suffixes += "\tpublic res: " + res_map.java_hu_ty + ";\n"
1046 public constructor(_dummy: object, ptr: number) {{
1049 if res_map.java_hu_ty == "void":
1051 elif res_map.to_hu_conv is not None:
1052 suffixes += "\t\tconst res: " + res_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1053 suffixes += "\t\t" + res_map.to_hu_conv.replace("\n", "\n\t\t")
1054 suffixes += "\n\t\tthis.res = " + res_map.to_hu_conv_name + ";\n"
1056 suffixes += "\t\tthis.res = bindings." + struct_name.replace("LDK", "") + "_get_ok(ptr);\n"
1057 suffixes += "\t}\n}\n"
1059 suffixes += f"export class {human_ty}_Err extends {human_ty} {{\n"
1060 if err_map.java_hu_ty != "void":
1061 suffixes += "\tpublic err: " + err_map.java_hu_ty + ";\n"
1064 public constructor(_dummy: object, ptr: number) {{
1067 if err_map.java_hu_ty == "void":
1069 elif err_map.to_hu_conv is not None:
1070 suffixes += "\t\tconst err: " + err_map.java_ty + " = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1071 suffixes += "\t\t" + err_map.to_hu_conv.replace("\n", "\n\t\t")
1072 suffixes += "\n\t\tthis.err = " + err_map.to_hu_conv_name + ";\n"
1074 suffixes += "\t\tthis.err = bindings." + struct_name.replace("LDK", "") + "_get_err(ptr);\n"
1075 suffixes += "\t}\n}"
1077 self.struct_file_suffixes[human_ty] = suffixes
1078 self.obj_defined([human_ty], "structs")
1080 return f"""{self.hu_struct_file_prefix}
1082 export class {human_ty} extends CommonBase {{
1083 protected constructor(_dummy: object, ptr: number) {{
1084 super(ptr, bindings.{struct_name.replace("LDK","")}_free);
1087 public static constr_from_ptr(ptr: number): {human_ty} {{
1088 if (bindings.{struct_name.replace("LDK", "")}_is_ok(ptr)) {{
1089 return new {human_ty}_OK(null, ptr);
1091 return new {human_ty}_Err(null, ptr);
1096 def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
1097 has_return_value = return_c_ty != 'void'
1098 needs_decoding = return_c_ty in self.wasm_decoding_map
1099 return_statement = 'return nativeResponseValue;'
1100 if not has_return_value:
1101 return_statement = '// debug statements here'
1102 elif needs_decoding:
1103 converter = self.wasm_decoding_map[return_c_ty]
1104 return_statement = f"return {converter}(nativeResponseValue);"
1106 return f"""export function {method_name}({method_argument_string}): {return_java_ty} {{
1107 if(!isWasmInitialized) {{
1108 throw new Error("initializeWasm() must be awaited first!");
1110 const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
1114 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):
1117 out_java_struct = None
1120 out_c += (self.c_fn_ty_pfx)
1121 out_c += (return_type_info.c_ty)
1122 out_java += (return_type_info.java_ty)
1123 if return_type_info.ret_conv is not None:
1124 ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
1125 out_java += (" " + method_name + "(")
1126 out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
1128 method_argument_string = ""
1129 native_call_argument_string = ""
1130 for idx, arg_conv_info in enumerate(argument_types):
1132 method_argument_string += (", ")
1133 native_call_argument_string += ', '
1135 if arg_conv_info.c_ty != "void":
1136 out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
1137 needs_encoding = arg_conv_info.c_ty in self.wasm_encoding_map
1138 native_argument = arg_conv_info.arg_name
1140 converter = self.wasm_encoding_map[arg_conv_info.c_ty]
1141 native_argument = f"{converter}({arg_conv_info.arg_name})"
1142 method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
1143 native_call_argument_string += native_argument
1144 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)
1146 out_java_struct = ""
1148 out_java_struct += ("\t// Skipped " + method_name + "\n")
1151 out_java_struct += (
1152 "\tpublic static constructor_" + meth_n + "(")
1154 out_java_struct += ("\tpublic " + meth_n + "(")
1155 for idx, arg in enumerate(argument_types):
1157 if not takes_self or idx > 1:
1158 out_java_struct += (", ")
1161 if arg.java_ty != "void":
1162 if arg.arg_name in default_constructor_args:
1163 for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
1164 if explode_idx != 0:
1165 out_java_struct += (", ")
1166 out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
1168 out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
1171 if out_java_struct is not None:
1172 out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
1173 for info in argument_types:
1174 if info.arg_conv is not None:
1175 out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
1176 if return_type_info.ret_conv is not None:
1177 out_c += ("\t" + ret_conv_pfx.replace('\n', '\n\t'))
1178 elif return_type_info.c_ty != "void":
1179 out_c += ("\t" + return_type_info.c_ty + " ret_val = ")
1182 if c_call_string is None:
1183 out_c += (method_name + "(")
1185 out_c += (c_call_string)
1186 for idx, info in enumerate(argument_types):
1187 if info.arg_conv_name is not None:
1190 elif c_call_string is not None:
1192 out_c += (info.arg_conv_name)
1194 if return_type_info.ret_conv is not None:
1195 out_c += (ret_conv_sfx.replace('\n', '\n\t'))
1198 for info in argument_types:
1199 if info.arg_conv_cleanup is not None:
1200 out_c += ("\n\t" + info.arg_conv_cleanup.replace("\n", "\n\t"))
1201 if return_type_info.ret_conv is not None:
1202 out_c += ("\n\treturn " + return_type_info.ret_conv_name + ";")
1203 elif return_type_info.c_ty != "void":
1204 out_c += ("\n\treturn ret_val;")
1205 out_c += ("\n}\n\n")
1208 out_java_struct += ("\t\t")
1209 if return_type_info.java_ty != "void":
1210 out_java_struct += "const ret: " + return_type_info.java_ty + " = "
1211 out_java_struct += ("bindings." + method_name + "(")
1212 for idx, info in enumerate(argument_types):
1214 out_java_struct += (", ")
1215 if idx == 0 and takes_self:
1216 out_java_struct += ("this.ptr")
1217 elif info.arg_name in default_constructor_args:
1218 out_java_struct += ("bindings." + info.java_hu_ty + "_new(")
1219 for explode_idx, explode_arg in enumerate(default_constructor_args[info.arg_name]):
1220 if explode_idx != 0:
1221 out_java_struct += (", ")
1222 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1223 if explode_arg.from_hu_conv is not None:
1224 out_java_struct += (
1225 explode_arg.from_hu_conv[0].replace(explode_arg.arg_name, expl_arg_name))
1227 out_java_struct += (expl_arg_name)
1228 out_java_struct += (")")
1229 elif info.from_hu_conv is not None:
1230 out_java_struct += (info.from_hu_conv[0])
1232 out_java_struct += (info.arg_name)
1233 out_java_struct += (");\n")
1234 if return_type_info.to_hu_conv is not None:
1236 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t").replace("this",
1237 return_type_info.to_hu_conv_name) + "\n")
1239 out_java_struct += ("\t\t" + return_type_info.to_hu_conv.replace("\n", "\n\t\t") + "\n")
1241 for idx, info in enumerate(argument_types):
1242 if idx == 0 and takes_self:
1244 elif info.arg_name in default_constructor_args:
1245 for explode_arg in default_constructor_args[info.arg_name]:
1246 expl_arg_name = info.arg_name + "_" + explode_arg.arg_name
1247 if explode_arg.from_hu_conv is not None and return_type_info.to_hu_conv_name:
1248 out_java_struct += ("\t\t" + explode_arg.from_hu_conv[1].replace(explode_arg.arg_name,
1249 expl_arg_name).replace(
1250 "this", return_type_info.to_hu_conv_name) + ";\n")
1251 elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
1252 if not takes_self and return_type_info.to_hu_conv_name is not None:
1253 out_java_struct += (
1254 "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
1256 out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
1258 if return_type_info.to_hu_conv_name is not None:
1259 out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
1260 elif return_type_info.java_ty != "void" and return_type_info.rust_obj != "LDK" + struct_meth:
1261 out_java_struct += ("\t\treturn ret;\n")
1262 out_java_struct += ("\t}\n\n")
1264 return (out_java, out_c, out_java_struct)
1267 for struct in self.struct_file_suffixes:
1268 with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
1269 src.write(self.struct_file_suffixes[struct])