BROWSER = 2
class Consts:
- def __init__(self, DEBUG: bool, target: Target, **kwargs):
-
+ def __init__(self, DEBUG: bool, target: Target, outdir: str, **kwargs):
+ self.outdir = outdir
+ self.struct_file_suffixes = {}
self.c_type_map = dict(
uint8_t = ['number', 'Uint8Array'],
uint16_t = ['number', 'Uint16Array'],
)
self.wasm_decoding_map = dict(
- int8_tArray = 'decodeArray'
+ int8_tArray = 'decodeUint8Array'
)
self.wasm_encoding_map = dict(
- int8_tArray = 'encodeArray',
+ int8_tArray = 'encodeUint8Array',
)
self.to_hu_conv_templates = dict(
"""
+ self.bindings_version_file = ""
+
self.bindings_footer = ""
+ self.util_fn_pfx = ""
+ self.util_fn_sfx = ""
+
self.common_base = """
export default class CommonBase {
- ptr: number;
- ptrs_to: object[] = []; // new LinkedList(); TODO: build linked list implementation
+ protected ptr: number;
+ protected ptrs_to: object[] = [];
protected constructor(ptr: number) { this.ptr = ptr; }
public _test_only_get_ptr(): number { return this.ptr; }
protected finalize() {
}
"""
- self.c_file_pfx = """#include <rust_types.h>
-#include "js-wasm.h"
+ self.c_file_pfx = """#include "js-wasm.h"
#include <stdatomic.h>
#include <lightning.h>
int memcmp(const void *s1, const void *s2, size_t n);
void __attribute__((noreturn)) abort(void);
-void assert(bool expression);
+static inline void assert(bool expression) {
+ if (!expression) { abort(); }
+}
"""
if not DEBUG:
void free(void *ptr);
#define MALLOC(a, _) malloc(a)
-#define FREE(p) if ((long)(p) > 1024) { free(p); }
+#define FREE(p) if ((unsigned long)(p) > 4096) { free(p); }
#define DO_ASSERT(a) (void)(a)
#define CHECK(a)
+#define CHECK_ACCESS(p)
+#define CHECK_INNER_FIELD_ACCESS_OR_NULL(v)
"""
else:
self.c_file_pfx = self.c_file_pfx + """
__real_free(it);
}
static void FREE(void* ptr) {
- if ((long)ptr < 1024) return; // Rust loves to create pointers to the NULL page for dummys
+ if ((unsigned long)ptr <= 4096) return; // Rust loves to create pointers to the NULL page for dummys
alloc_freed(ptr);
__real_free(ptr);
}
+static void CHECK_ACCESS(const void* ptr) {
+ allocation* it = allocation_ll;
+ while (it->ptr != ptr) {
+ it = it->next;
+ if (it == NULL) {
+ return; // addrsan should catch malloc-unknown and print more info than we have
+ }
+ }
+}
+#define CHECK_INNER_FIELD_ACCESS_OR_NULL(v) \\
+ if (v.is_owned && v.inner != NULL) { \\
+ const void *p = __unmangle_inner_ptr(v.inner); \\
+ if (p != NULL) { \\
+ CHECK_ACCESS(p); \\
+ } \\
+ }
+
void* __wrap_malloc(size_t len) {
void* res = __real_malloc(len);
new_allocation(res, "malloc call");
_Static_assert(sizeof(void*) == 4, "Pointers mut be 32 bits");
-typedef struct int64_tArray { uint32_t *len; /* len + 1 is data */ } int64_tArray;
-typedef struct uint32_tArray { uint32_t *len; /* len + 1 is data */ } uint32_tArray;
-typedef struct ptrArray { uint32_t *len; /* len + 1 is data */ } ptrArray;
-typedef struct int8_tArray { uint32_t *len; /* len + 1 is data */ } int8_tArray;
-typedef struct jstring {} jstring;
+#define DECL_ARR_TYPE(ty, name) \\
+ struct name##array { \\
+ uint32_t arr_len; \\
+ ty elems[]; \\
+ }; \\
+ typedef struct name##array * name##Array; \\
+ static inline name##Array init_##name##Array(size_t arr_len) { \\
+ name##Array arr = (name##Array)MALLOC(arr_len * sizeof(ty) + sizeof(uint32_t), "##name array init"); \\
+ arr->arr_len = arr_len; \\
+ return arr; \\
+ }
-jstring conv_owned_string(const char* _src) { jstring a; return a; }
+DECL_ARR_TYPE(int64_t, int64_t);
+DECL_ARR_TYPE(int8_t, int8_t);
+DECL_ARR_TYPE(uint32_t, uint32_t);
+DECL_ARR_TYPE(void*, ptr);
+DECL_ARR_TYPE(char, char);
+typedef charArray jstring;
+
+static inline jstring str_ref_to_ts(const char* chars, size_t len) {
+ charArray arr = init_charArray(len);
+ memcpy(arr->elems, chars, len);
+ return arr;
+}
+static inline LDKStr str_ref_to_owned_c(const jstring str) {
+ char* newchars = MALLOC(str->arr_len + 1, "String chars");
+ memcpy(newchars, str->elems, str->arr_len);
+ newchars[str->arr_len] = 0;
+ LDKStr res = {
+ .chars = newchars,
+ .len = str->arr_len,
+ .chars_is_owned = true
+ };
+ return res;
+}
typedef bool jboolean;
+uint32_t __attribute__((visibility("default"))) TS_malloc(uint32_t size) {
+ return (uint32_t)MALLOC(size, "JS-Called malloc");
+}
+void __attribute__((visibility("default"))) TS_free(uint32_t ptr) {
+ FREE((void*)ptr);
+}
"""
+ self.c_version_file = ""
+
self.hu_struct_file_prefix = f"""
import CommonBase from './CommonBase';
-import * as bindings from '../bindings' // TODO: figure out location
+import * as bindings from '../bindings.mjs'
"""
self.c_fn_ty_pfx = ""
- self.c_fn_name_pfx = ""
- self.c_fn_args_pfx = "void* ctx_TODO"
- self.file_ext = ".ts"
+ self.file_ext = ".mts"
self.ptr_c_ty = "uint32_t"
- self.ptr_native_ty = "uint32_t"
+ self.ptr_native_ty = "number"
self.result_c_ty = "uint32_t"
- self.owned_str_to_c_call = ("conv_owned_string(", ")")
self.ptr_arr = "ptrArray"
- self.get_native_arr_len_call = ("*", ".len")
+ self.is_arr_some_check = ("", " != 0")
+ self.get_native_arr_len_call = ("", "->arr_len")
def release_native_arr_ptr_call(self, ty_info, arr_var, arr_ptr_var):
return None
def create_native_arr_call(self, arr_len, ty_info):
- if ty_info.c_ty == "int8_tArray":
- return "{ .len = MALLOC(" + arr_len + " + sizeof(uint32_t), \"Native " + ty_info.c_ty + " Bytes\") }"
- elif ty_info.c_ty == "int64_tArray":
- return "{ .len = MALLOC(" + arr_len + " * sizeof(int64_t) + sizeof(uint32_t), \"Native " + ty_info.c_ty + " Bytes\") }"
- elif ty_info.c_ty == "uint32_tArray":
- return "{ .len = MALLOC(" + arr_len + " * sizeof(int32_t) + sizeof(uint32_t), \"Native " + ty_info.c_ty + " Bytes\") }"
- elif ty_info.c_ty == "ptrArray":
+ if ty_info.c_ty == "ptrArray":
assert ty_info.subty is not None and ty_info.subty.c_ty.endswith("Array")
- return "{ .len = MALLOC(" + arr_len + " * sizeof(int32_t) + sizeof(uint32_t), \"Native Object Bytes\") }"
- else:
- print("Need to create arr!", ty_info.c_ty)
- return ty_info.c_ty
+ return "init_" + ty_info.c_ty + "(" + arr_len + ")"
def set_native_arr_contents(self, arr_name, arr_len, ty_info):
if ty_info.c_ty == "int8_tArray":
- return ("memcpy(" + arr_name + ".len + 1, ", ", " + arr_len + ")")
+ return ("memcpy(" + arr_name + "->elems, ", ", " + arr_len + ")")
else:
assert False
def get_native_arr_contents(self, arr_name, dest_name, arr_len, ty_info, copy):
if ty_info.c_ty == "int8_tArray":
if copy:
- return "memcpy(" + dest_name + ", " + arr_name + ".len + 1, " + arr_len + ")"
- else:
- return "(int8_t*)(" + arr_name + ".len + 1)"
+ return "memcpy(" + dest_name + ", " + arr_name + "->elems, " + arr_len + ")"
+ if ty_info.c_ty == "ptrArray":
+ return "(void*) " + arr_name + "->elems"
else:
- return "(" + ty_info.subty.c_ty + "*)(" + arr_name + ".len + 1)"
+ assert not copy
+ return arr_name + "->elems"
def get_native_arr_elem(self, arr_name, idxc, ty_info):
assert False # Only called if above is None
def get_native_arr_ptr_call(self, ty_info):
if ty_info.subty is not None:
- return "(" + ty_info.subty.c_ty + "*)(", ".len + 1)"
- return "(" + ty_info.c_ty + "*)(", ".len + 1)"
+ return "(" + ty_info.subty.c_ty + "*)(", " + 4)"
+ return "(" + ty_info.c_ty + "*)(", " + 4)"
def get_native_arr_entry_call(self, ty_info, arr_name, idxc, entry_access):
return None
def cleanup_native_arr_ref_contents(self, arr_name, dest_name, arr_len, ty_info):
else:
return None
+ def str_ref_to_native_call(self, var_name, str_len):
+ return "str_ref_to_ts(" + var_name + ", " + str_len + ")"
+ def str_ref_to_c_call(self, var_name):
+ return "str_ref_to_owned_c(" + var_name + ")"
- def wasm_import_header(self, target):
- if target == Target.NODEJS:
- return """
-import * as fs from 'fs';
-const source = fs.readFileSync('./ldk.wasm');
+ def c_fn_name_define_pfx(self, fn_name, have_args):
+ return " __attribute__((visibility(\"default\"))) TS_" + fn_name + "("
+ def wasm_import_header(self, target):
+ res = """
+function freer(f: () => void) { f() }
+const finalizer = new FinalizationRegistry(freer);
const memory = new WebAssembly.Memory({initial: 256});
-const wasmModule = new WebAssembly.Module(source);
const imports: any = {};
imports.env = {};
imports.env.table = new WebAssembly.Table({initial: 4, element: 'anyfunc'});
imports.env["abort"] = function () {
- console.error("ABORT");
+ console.error("ABORT");
+};
+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) {
+ console.log('function called from wasm:', fn, arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10);
+};
+imports.env["js_free_function_ptr"] = function(fn: number) {
+ console.log("function ptr free'd from wasm:", fn);
};
-const wasmInstance = await WebAssembly.instantiate(wasmModule, imports)
-const wasm = wasmInstance.exports;
+imports.wasi_snapshot_preview1 = {
+ "fd_write" : () => {
+ console.log("ABORT");
+ },
+ "random_get" : () => {
+ console.log("RAND GET");
+ },
+ "environ_sizes_get" : () => {
+ console.log("wasi_snapshot_preview1:environ_sizes_get");
+ },
+ "proc_exit" : () => {
+ console.log("wasi_snapshot_preview1:proc_exit");
+ },
+ "environ_get" : () => {
+ console.log("wasi_snapshot_preview1:environ_get");
+ },
+};
+
+var wasm = null;
+let isWasmInitialized: boolean = false;
+"""
+
+ if target == Target.NODEJS:
+ res += """import * as fs from 'fs';
+export async function initializeWasm(path) {
+ const source = fs.readFileSync(path);
+ const { instance: wasmInstance } = await WebAssembly.instantiate(source, imports);
+ wasm = wasmInstance.exports;
+ isWasmInitialized = true;
+};
+"""
+ else:
+ res += """
+export async function initializeWasm(uri) {
+ const stream = fetch(uri);
+ const { instance: wasmInstance } = await WebAssembly.instantiateStreaming(stream, imports);
+ wasm = wasmInstance.exports;
+ isWasmInitialized = true;
+};
+
+"""
+
+ return res + """
+
// WASM CODEC
const nextMultipleOfFour = (value: number) => {
- return Math.ceil(value / 4) * 4;
+ return Math.ceil(value / 4) * 4;
}
-const encodeArray = (inputArray) => {
- // TODO: (matt) is this correct, or should it go back to length * 4?
- // const cArrayPointer = wasm.wasm_malloc(inputArray.length * 4);
- const cArrayPointer = wasm.wasm_malloc(nextMultipleOfFour(inputArray.length));
+const encodeUint8Array = (inputArray) => {
+ const cArrayPointer = wasm.TS_malloc(inputArray.length + 4);
+ const arrayLengthView = new Uint32Array(memory.buffer, cArrayPointer, 1);
+ arrayLengthView[0] = inputArray.length;
+ const arrayMemoryView = new Uint8Array(memory.buffer, cArrayPointer + 4, inputArray.length);
+ arrayMemoryView.set(inputArray);
+ return cArrayPointer;
+}
- const arrayMemoryView = new Uint32Array(memory.buffer, cArrayPointer, inputArray.length);
- arrayMemoryView.set(inputArray);
- return cArrayPointer;
+const encodeUint32Array = (inputArray) => {
+ const cArrayPointer = wasm.TS_malloc((inputArray.length + 1) * 4);
+ const arrayMemoryView = new Uint32Array(memory.buffer, cArrayPointer, inputArray.length);
+ arrayMemoryView.set(inputArray, 1);
+ arrayMemoryView[0] = inputArray.length;
+ return cArrayPointer;
}
-const decodeArray = (arrayPointer, free = true) => {
- const arraySizeViewer = new Uint32Array(
- memory.buffer, // value
- arrayPointer, // offset
- 1 // one int
- );
- const arraySize = arraySizeViewer[0];
- const actualArrayViewer = new Uint32Array(
- memory.buffer, // value
- arrayPointer, // offset
- arraySize + 1
- );
- const actualArray = actualArrayViewer.slice(1, arraySize + 1);
- if (free) {
- // wasm.free_array(arrayPointer);
- wasm.wasm_free(arrayPointer); // TODO: check if passing *void still captures remaining values
- }
- return actualArray;
+const getArrayLength = (arrayPointer) => {
+ const arraySizeViewer = new Uint32Array(
+ memory.buffer, // value
+ arrayPointer, // offset
+ 1 // one int
+ );
+ return arraySizeViewer[0];
+}
+const decodeUint8Array = (arrayPointer, free = true) => {
+ const arraySize = getArrayLength(arrayPointer);
+ const actualArrayViewer = new Uint8Array(
+ memory.buffer, // value
+ arrayPointer + 4, // offset (ignoring length bytes)
+ arraySize // uint8 count
+ );
+ // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
+ // will free the underlying memory when it becomes unreachable instead of copying here.
+ const actualArray = actualArrayViewer.slice(0, arraySize);
+ if (free) {
+ wasm.TS_free(arrayPointer);
+ }
+ return actualArray;
+}
+const decodeUint32Array = (arrayPointer, free = true) => {
+ const arraySize = getArrayLength(arrayPointer);
+ const actualArrayViewer = new Uint32Array(
+ memory.buffer, // value
+ arrayPointer + 4, // offset (ignoring length bytes)
+ arraySize // uint32 count
+ );
+ // Clone the contents, TODO: In the future we should wrap the Viewer in a class that
+ // will free the underlying memory when it becomes unreachable instead of copying here.
+ const actualArray = actualArrayViewer.slice(0, arraySize);
+ if (free) {
+ wasm.TS_free(arrayPointer);
+ }
+ return actualArray;
}
const encodeString = (string) => {
- // make malloc count divisible by 4
- const memoryNeed = nextMultipleOfFour(string.length + 1);
- const stringPointer = wasm.wasm_malloc(memoryNeed);
- const stringMemoryView = new Uint8Array(
- memory.buffer, // value
- stringPointer, // offset
- string.length + 1 // length
- );
- for (let i = 0; i < string.length; i++) {
- stringMemoryView[i] = string.charCodeAt(i);
- }
- stringMemoryView[string.length] = 0;
- return stringPointer;
+ // make malloc count divisible by 4
+ const memoryNeed = nextMultipleOfFour(string.length + 1);
+ const stringPointer = wasm.TS_malloc(memoryNeed);
+ const stringMemoryView = new Uint8Array(
+ memory.buffer, // value
+ stringPointer, // offset
+ string.length + 1 // length
+ );
+ for (let i = 0; i < string.length; i++) {
+ stringMemoryView[i] = string.charCodeAt(i);
+ }
+ stringMemoryView[string.length] = 0;
+ return stringPointer;
}
const decodeString = (stringPointer, free = true) => {
- const memoryView = new Uint8Array(memory.buffer, stringPointer);
- let cursor = 0;
- let result = '';
+ const memoryView = new Uint8Array(memory.buffer, stringPointer);
+ let cursor = 0;
+ let result = '';
- while (memoryView[cursor] !== 0) {
- result += String.fromCharCode(memoryView[cursor]);
- cursor++;
- }
+ while (memoryView[cursor] !== 0) {
+ result += String.fromCharCode(memoryView[cursor]);
+ cursor++;
+ }
- if (free) {
- wasm.wasm_free(stringPointer);
- }
+ if (free) {
+ wasm.wasm_free(stringPointer);
+ }
- return result;
+ return result;
};
"""
- return ''
def init_str(self):
return ""
- def native_c_unitary_enum_map(self, struct_name, variants):
- out_c = "static inline " + struct_name + " " + struct_name + "_from_js(int32_t ord) {\n"
+ def var_decl_statement(self, ty_string, var_name, statement):
+ return "const " + var_name + ": " + ty_string + " = " + statement
+
+ def native_c_unitary_enum_map(self, struct_name, variants, enum_doc_comment):
+ out_c = "static inline LDK" + struct_name + " LDK" + struct_name + "_from_js(int32_t ord) {\n"
out_c = out_c + "\tswitch (ord) {\n"
ord_v = 0
out_typescript_enum_fields = ""
- for var in variants:
+ for var, var_docs in variants:
out_c = out_c + "\t\tcase %d: return %s;\n" % (ord_v, var)
ord_v = ord_v + 1
+ if var_docs is not None:
+ out_typescript_enum_fields += f"/**\n * {var_docs}\n */\n"
out_typescript_enum_fields += f"{var},\n\t\t\t\t"
out_c = out_c + "\t}\n"
out_c = out_c + "\tabort();\n"
out_c = out_c + "}\n"
- out_c = out_c + "static inline int32_t " + struct_name + "_to_js(" + struct_name + " val) {\n"
+ out_c = out_c + "static inline int32_t LDK" + struct_name + "_to_js(LDK" + struct_name + " val) {\n"
out_c = out_c + "\tswitch (val) {\n"
ord_v = 0
- for var in variants:
+ for var, _ in variants:
out_c = out_c + "\t\tcase " + var + ": return %d;\n" % ord_v
ord_v = ord_v + 1
out_c = out_c + "\t\tdefault: abort();\n"
out_c = out_c + "\t}\n"
out_c = out_c + "}\n"
- out_typescript_enum = f"""
+ out_typescript = f"""
export enum {struct_name} {{
{out_typescript_enum_fields}
}}
"""
-
- return (out_c, out_typescript_enum, "")
+ out_typescript_enum = f"export {{ {struct_name} }} from \"../bindings.mjs\";"
+ return (out_c, out_typescript_enum, out_typescript)
def c_unitary_enum_to_native_call(self, ty_info):
return (ty_info.rust_obj + "_to_js(", ")")
ret = ret + "; (void) " + param
return ret
- def native_c_map_trait(self, struct_name, field_var_conversions, field_function_lines):
+ def native_c_map_trait(self, struct_name, field_var_conversions, flattened_field_var_conversions, field_function_lines, trait_doc_comment):
out_typescript_bindings = "\n\n\n// OUT_TYPESCRIPT_BINDINGS :: MAP_TRAIT :: START\n\n"
constructor_arguments = ""
super_instantiator = ""
pointer_to_adder = ""
impl_constructor_arguments = ""
- for var in field_var_conversions:
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
constructor_arguments += f", {first_to_lower(var.arg_name)}?: {var.java_hu_ty}"
impl_constructor_arguments += f", {var.arg_name}: {var.java_hu_ty}"
java_methods = []
for fn_line in field_function_lines:
java_method_descriptor = ""
- if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
out_java_interface += fn_line.fn_name + "("
out_interface_implementation_overrides += f"{fn_line.fn_name} ("
if isinstance(var, ConvInfo):
trait_constructor_arguments += ", " + var.arg_name
else:
- trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl).bindings_instance"
+ trait_constructor_arguments += ", " + var[1] + ".new_impl(" + var[1] + "_impl"
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ trait_constructor_arguments += ", " + suparg.arg_name
+ else:
+ trait_constructor_arguments += ", " + suparg[1]
+ trait_constructor_arguments += ").bindings_instance"
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ trait_constructor_arguments += ", " + suparg.arg_name
+ else:
+ trait_constructor_arguments += ", " + suparg[1]
out_typescript_human = f"""
{self.hu_struct_file_prefix}
out_typescript_bindings += "\t\texport interface " + struct_name + " {\n"
java_meths = []
for fn_line in field_function_lines:
- if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
out_typescript_bindings += f"\t\t\t{fn_line.fn_name} ("
for idx, arg_conv_info in enumerate(fn_line.args_ty):
out_typescript_bindings = out_typescript_bindings + "\t\t}\n\n"
out_typescript_bindings += f"\t\texport function {struct_name}_new(impl: {struct_name}"
- for var in field_var_conversions:
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
out_typescript_bindings += f", {var.arg_name}: {var.java_ty}"
else:
# Now that we've written out our java code (and created java_meths), generate C
out_c = "typedef struct " + struct_name + "_JCalls {\n"
out_c = out_c + "\tatomic_size_t refcnt;\n"
- out_c = out_c + "\t// TODO: Object pointer o;\n"
- for var in field_var_conversions:
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
# We're a regular ol' field
pass
# We're a supertrait
out_c = out_c + "\t" + var[0] + "_JCalls* " + var[1] + ";\n"
for fn in field_function_lines:
- if fn.fn_name != "free" and fn.fn_name != "clone":
- out_c = out_c + "\t// TODO: Some kind of method pointer " + fn.fn_name + "_meth;\n"
+ if fn.fn_name != "free" and fn.fn_name != "cloned":
+ out_c = out_c + "\tuint32_t " + fn.fn_name + "_meth;\n"
out_c = out_c + "} " + struct_name + "_JCalls;\n"
for fn_line in field_function_lines:
out_c = out_c + "static void " + struct_name + "_JCalls_free(void* this_arg) {\n"
out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
out_c = out_c + "\tif (atomic_fetch_sub_explicit(&j_calls->refcnt, 1, memory_order_acquire) == 1) {\n"
- out_c = out_c + "\t\t// TODO: do any release required for j_calls->o (refcnt-- in java, but may be redundant)\n"
+ for fn in field_function_lines:
+ if fn.fn_name != "free" and fn.fn_name != "cloned":
+ out_c = out_c + "\t\tjs_free_function_ptr(j_calls->" + fn.fn_name + "_meth);\n"
out_c = out_c + "\t\tFREE(j_calls);\n"
out_c = out_c + "\t}\n}\n"
for idx, fn_line in enumerate(field_function_lines):
- if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
assert fn_line.ret_ty_info.ty_info.get_full_rust_ty()[1] == ""
- out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_jcall("
+ out_c = out_c + fn_line.ret_ty_info.ty_info.get_full_rust_ty()[0] + " " + fn_line.fn_name + "_" + struct_name + "_jcall("
if fn_line.self_is_const:
out_c = out_c + "const void* this_arg"
else:
out_c = out_c + arg_info.arg_name
out_c = out_c + arg_info.ret_conv[1].replace('\n', '\n\t') + "\n"
- out_c = out_c + "\t//TODO: jobject obj = get object we can call against on j_calls->o\n"
if fn_line.ret_ty_info.c_ty.endswith("Array"):
- out_c = out_c + "\t" + fn_line.ret_ty_info.c_ty + " arg; // TODO: Call " + fn_line.fn_name + " on j_calls with instance obj, returning an object"
+ out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (" + fn_line.ret_ty_info.c_ty + ")"
+ out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
elif fn_line.ret_ty_info.java_ty == "void":
- out_c = out_c + "\treturn; //TODO: Call " + fn_line.fn_name + " on j_calls with instance obj"
+ out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
+ elif fn_line.ret_ty_info.java_ty == "String":
+ out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
elif not fn_line.ret_ty_info.passed_as_ptr:
- out_c = out_c + "\treturn 0; //TODO: Call " + fn_line.fn_name + " on j_calls with instance obj, returning " + fn_line.ret_ty_info.java_ty
+ out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
else:
- out_c = out_c + "\t" + fn_line.ret_ty_info.rust_obj + "* ret; // TODO: Call " + fn_line.fn_name + " on j_calls with instance obj, returning a pointer"
+ out_c = out_c + "\tuint32_t ret = js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->" + fn_line.fn_name + "_meth"
for idx, arg_info in enumerate(fn_line.args_ty):
if arg_info.ret_conv is not None:
- out_c = out_c + ", " + arg_info.ret_conv_name
+ out_c = out_c + ", (uint32_t)" + arg_info.ret_conv_name
else:
- out_c = out_c + ", " + arg_info.arg_name
+ out_c = out_c + ", (uint32_t)" + arg_info.arg_name
out_c = out_c + ");\n"
if fn_line.ret_ty_info.arg_conv is not None:
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"
out_c = out_c + "}\n"
# Write out a clone function whether we need one or not, as we use them in moving to rust
- out_c = out_c + "static void* " + struct_name + "_JCalls_clone(const void* this_arg) {\n"
- out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) this_arg;\n"
+ out_c = out_c + "static void " + struct_name + "_JCalls_cloned(" + struct_name + "* new_obj) {\n"
+ out_c = out_c + "\t" + struct_name + "_JCalls *j_calls = (" + struct_name + "_JCalls*) new_obj->this_arg;\n"
out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);\n"
for var in field_var_conversions:
if not isinstance(var, ConvInfo):
out_c = out_c + "\tatomic_fetch_add_explicit(&j_calls->" + var[1] + "->refcnt, 1, memory_order_release);\n"
- out_c = out_c + "\treturn (void*) this_arg;\n"
out_c = out_c + "}\n"
- out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (" + self.c_fn_args_pfx + ", /*TODO: JS Object Reference */void* o"
- for var in field_var_conversions:
+ out_c = out_c + "static inline " + struct_name + " " + struct_name + "_init (/*TODO: JS Object Reference */void* o"
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
out_c = out_c + ", " + var.c_ty + " " + var.arg_name
else:
out_c = out_c + "\t//TODO: Assign calls->o from o\n"
for (fn_name, java_meth_descr) in java_meths:
- if fn_name != "free" and fn_name != "clone":
+ if fn_name != "free" and fn_name != "cloned":
out_c = out_c + "\tcalls->" + fn_name + "_meth = (*env)->GetMethodID(env, c, \"" + fn_name + "\", \"" + java_meth_descr + "\");\n"
out_c = out_c + "\tCHECK(calls->" + fn_name + "_meth != NULL);\n"
- for var in field_var_conversions:
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo) and var.arg_conv is not None:
out_c = out_c + "\n\t" + var.arg_conv.replace("\n", "\n\t") +"\n"
out_c = out_c + "\n\t" + struct_name + " ret = {\n"
out_c = out_c + "\t\t.this_arg = (void*) calls,\n"
for fn_line in field_function_lines:
- if fn_line.fn_name != "free" and fn_line.fn_name != "clone":
- out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_jcall,\n"
+ if fn_line.fn_name != "free" and fn_line.fn_name != "cloned":
+ out_c = out_c + "\t\t." + fn_line.fn_name + " = " + fn_line.fn_name + "_" + struct_name + "_jcall,\n"
elif fn_line.fn_name == "free":
out_c = out_c + "\t\t.free = " + struct_name + "_JCalls_free,\n"
else:
- out_c = out_c + "\t\t.clone = " + struct_name + "_JCalls_clone,\n"
+ out_c = out_c + "\t\t.cloned = " + struct_name + "_JCalls_cloned,\n"
for var in field_var_conversions:
if isinstance(var, ConvInfo):
if var.arg_conv_name is not None:
out_c = out_c + "\t\t." + var.var_name + " = " + var.var_name + ",\n"
out_c = out_c + "\t\t.set_" + var.var_name + " = NULL,\n"
else:
- out_c = out_c + "\t\t." + var[1] + " = " + var[0] + "_init(NULL, " + var[1] + "),\n"
+ out_c += "\t\t." + var[1] + " = " + var[0] + "_init(" + var[1]
+ for suparg in var[2]:
+ if isinstance(suparg, ConvInfo):
+ out_c += ", " + suparg.arg_name
+ else:
+ out_c += ", " + suparg[1]
+ out_c += "),\n"
out_c = out_c + "\t};\n"
- for var in field_var_conversions:
+ for var in flattened_field_var_conversions:
if not isinstance(var, ConvInfo):
out_c = out_c + "\tcalls->" + var[1] + " = ret." + var[1] + ".this_arg;\n"
out_c = out_c + "\treturn ret;\n"
out_c = out_c + "}\n"
- out_c = out_c + self.c_fn_ty_pfx + "long " + self.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1new (" + self.c_fn_args_pfx + ", /*TODO: JS Object Reference */void* o"
- for var in field_var_conversions:
+ 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"
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
out_c = out_c + ", " + var.c_ty + " " + var.arg_name
else:
out_c = out_c + ", /*TODO: JS Object Reference */ void* " + var[1]
out_c = out_c + ") {\n"
out_c = out_c + "\t" + struct_name + " *res_ptr = MALLOC(sizeof(" + struct_name + "), \"" + struct_name + "\");\n"
- out_c = out_c + "\t*res_ptr = " + struct_name + "_init(NULL, o"
- for var in field_var_conversions:
+ out_c = out_c + "\t*res_ptr = " + struct_name + "_init(o"
+ for var in flattened_field_var_conversions:
if isinstance(var, ConvInfo):
out_c = out_c + ", " + var.arg_name
else:
def trait_struct_inc_refcnt(self, ty_info):
return ""
- def map_complex_enum(self, struct_name, variant_list, camel_to_snake):
- java_hu_type = struct_name.replace("LDK", "")
+ def map_complex_enum(self, struct_name, variant_list, camel_to_snake, enum_doc_comment):
+ bindings_type = struct_name.replace("LDK", "")
+ java_hu_type = struct_name.replace("LDK", "").replace("COption", "Option")
out_java_enum = ""
out_java = ""
out_c = ""
out_java_enum += (self.hu_struct_file_prefix)
- out_java_enum += ("export default class " + java_hu_type + " extends CommonBase {\n")
- out_java_enum += ("\tprotected constructor(_dummy: object, ptr: number) { super(ptr); }\n")
- out_java_enum += ("\tprotected finalize() {\n")
- out_java_enum += ("\t\tsuper.finalize();\n")
- out_java_enum += ("\t\tif (this.ptr != 0) { bindings." + java_hu_type + "_free(this.ptr); }\n")
- out_java_enum += ("\t}\n")
- out_java_enum += f"\tstatic constr_from_ptr(ptr: number): {java_hu_type} {{\n"
- out_java_enum += (f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n")
+
+ java_hu_class = ""
+ java_hu_class += "export default class " + java_hu_type + " extends CommonBase {\n"
+ java_hu_class += "\tprotected constructor(_dummy: object, ptr: number) { super(ptr); }\n"
+ java_hu_class += "\tprotected finalize() {\n"
+ java_hu_class += "\t\tsuper.finalize();\n"
+ java_hu_class += "\t\tif (this.ptr != 0) { bindings." + java_hu_type + "_free(this.ptr); }\n"
+ java_hu_class += "\t}\n"
+ java_hu_class += "\t/* @internal */\n"
+ java_hu_class += f"\tpublic static constr_from_ptr(ptr: number): {java_hu_type} {{\n"
+ java_hu_class += f"\t\tconst raw_val: bindings.{struct_name} = bindings." + struct_name + "_ref_from_ptr(ptr);\n"
java_hu_subclasses = ""
- out_java += ("\tpublic static class " + struct_name + " {\n")
- out_java += ("\t\tprivate " + struct_name + "() {}\n")
+ out_java += "\texport class " + struct_name + " {\n"
+ out_java += "\t\tprotected constructor() {}\n"
+ java_subclasses = ""
for var in variant_list:
- out_java += ("\t\texport class " + var.var_name + " extends " + struct_name + " {\n")
- java_hu_subclasses = java_hu_subclasses + "export class " + var.var_name + " extends " + java_hu_type + " {\n"
- out_java_enum += ("\t\tif (raw_val instanceof bindings." + struct_name + "." + var.var_name + ") {\n")
- out_java_enum += ("\t\t\treturn new " + var.var_name + "(this.ptr, raw_val);\n")
+ java_subclasses += "\texport class " + struct_name + "_" + var.var_name + " extends " + struct_name + " {\n"
+ java_hu_subclasses = java_hu_subclasses + "export class " + java_hu_type + "_" + var.var_name + " extends " + java_hu_type + " {\n"
+ java_hu_class += "\t\tif (raw_val instanceof bindings." + struct_name + "_" + var.var_name + ") {\n"
+ java_hu_class += "\t\t\treturn new " + java_hu_type + "_" + var.var_name + "(ptr, raw_val);\n"
init_meth_params = ""
- init_meth_body = ""
hu_conv_body = ""
- for idx, field_ty in enumerate(var.fields):
- out_java += ("\t\t\tpublic " + field_ty.java_ty + " " + field_ty.arg_name + ";\n")
+ for idx, (field_ty, field_docs) in enumerate(var.fields):
java_hu_subclasses = java_hu_subclasses + "\tpublic " + field_ty.arg_name + f": {field_ty.java_hu_ty};\n"
if field_ty.to_hu_conv is not None:
hu_conv_body = hu_conv_body + "\t\tconst " + field_ty.arg_name + f": {field_ty.java_ty} = obj." + field_ty.arg_name + ";\n"
else:
hu_conv_body = hu_conv_body + "\t\tthis." + field_ty.arg_name + " = obj." + field_ty.arg_name + ";\n"
if idx > 0:
- init_meth_params = init_meth_params + ", "
- init_meth_params = init_meth_params + field_ty.java_ty + " " + field_ty.arg_name
- init_meth_body = init_meth_body + "this." + field_ty.arg_name + " = " + field_ty.arg_name + "; "
- out_java += ("\t\t\t" + var.var_name + "(" + init_meth_params + ") { ")
- out_java += (init_meth_body)
- out_java += ("}\n")
- out_java += ("\t\t}\n")
- out_java_enum += ("\t\t}\n")
- java_hu_subclasses = java_hu_subclasses + "\tprivate constructor(ptr: number, obj: bindings." + struct_name + "." + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
+ init_meth_params += ", "
+ init_meth_params += "public " + field_ty.arg_name + ": " + field_ty.java_ty
+ java_subclasses += "\t\tconstructor(" + init_meth_params + ") { super(); }\n"
+ java_subclasses += "\t}\n"
+ java_hu_class += "\t\t}\n"
+ java_hu_subclasses += "\t/* @internal */\n"
+ java_hu_subclasses += "\tpublic constructor(ptr: number, obj: bindings." + struct_name + "_" + var.var_name + ") {\n\t\tsuper(null, ptr);\n"
java_hu_subclasses = java_hu_subclasses + hu_conv_body
java_hu_subclasses = java_hu_subclasses + "\t}\n}\n"
- out_java += ("\t\tstatic native void init();\n")
out_java += ("\t}\n")
- out_java_enum += ("\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n")
- out_java += ("\tstatic { " + struct_name + ".init(); }\n")
- out_java += ("\tpublic static native " + struct_name + " " + struct_name + "_ref_from_ptr(long ptr);\n");
+ out_java += java_subclasses
+ java_hu_class += "\t\tthrow new Error('oops, this should be unreachable'); // Unreachable without extending the (internal) bindings interface\n\t}\n\n"
+ out_java += self.fn_call_body(struct_name + "_ref_from_ptr", "uint32_t", "number", "ptr: number", "ptr")
- out_c += (self.c_fn_ty_pfx + self.c_complex_enum_pass_ty(struct_name) + " " + self.c_fn_name_pfx + struct_name.replace("_", "_1") + "_1ref_1from_1ptr (" + self.c_fn_args_pfx + ", " + self.ptr_c_ty + " ptr) {\n")
- out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)ptr;\n")
+ 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")
+ out_c += ("\t" + struct_name + " *obj = (" + struct_name + "*)(ptr & ~1);\n")
out_c += ("\tswitch(obj->tag) {\n")
for var in variant_list:
out_c += ("\t\tcase " + struct_name + "_" + var.var_name + ": {\n")
c_params = []
- for idx, field_map in enumerate(var.fields):
+ for idx, (field_map, _) in enumerate(var.fields):
if field_map.ret_conv is not None:
out_c += ("\t\t\t" + field_map.ret_conv[0].replace("\n", "\n\t\t\t"))
- out_c += ("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
+ if var.tuple_variant:
+ out_c += "obj->" + camel_to_snake(var.var_name)
+ else:
+ out_c += "obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name
out_c += (field_map.ret_conv[1].replace("\n", "\n\t\t\t") + "\n")
c_params.append(field_map.ret_conv_name)
else:
- c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
+ if var.tuple_variant:
+ c_params.append("obj->" + camel_to_snake(var.var_name))
+ else:
+ c_params.append("obj->" + camel_to_snake(var.var_name) + "." + field_map.arg_name)
out_c += ("\t\t\treturn " + self.c_constr_native_complex_enum(struct_name, var.var_name, c_params) + ";\n")
out_c += ("\t\t}\n")
out_c += ("\t\tdefault: abort();\n")
out_c += ("\t}\n}\n")
- out_java_enum += ("}\n")
- out_java_enum += (java_hu_subclasses)
+ out_java_enum += java_hu_class
+ self.struct_file_suffixes[java_hu_type] = java_hu_subclasses
return (out_java, out_java_enum, out_c)
- def map_opaque_struct(self, struct_name):
+ def map_opaque_struct(self, struct_name, struct_doc_comment):
implementations = ""
method_header = ""
if struct_name.startswith("LDKLocked"):
{self.hu_struct_file_prefix}
export default class {struct_name.replace("LDK","")} extends CommonBase {implementations}{{
- constructor(_dummy: object, ptr: number) {{
+ /* @internal */
+ public constructor(_dummy: object, ptr: number) {{
super(ptr);
}}
"""
return out_opaque_struct_human
- def map_function(self, argument_types, c_call_string, is_free, method_name, return_type_info, struct_meth, default_constructor_args, takes_self, args_known, has_out_java_struct: bool, type_mapping_generator):
+ def map_tuple(self, struct_name):
+ return self.map_opaque_struct(struct_name, "A Tuple")
+
+ def fn_call_body(self, method_name, return_c_ty, return_java_ty, method_argument_string, native_call_argument_string):
+ has_return_value = return_c_ty != 'void'
+ needs_decoding = return_c_ty in self.wasm_decoding_map
+ return_statement = 'return nativeResponseValue;'
+ if not has_return_value:
+ return_statement = '// debug statements here'
+ elif needs_decoding:
+ converter = self.wasm_decoding_map[return_c_ty]
+ return_statement = f"return {converter}(nativeResponseValue);"
+
+ return f"""\texport function {method_name}({method_argument_string}): {return_java_ty} {{
+ if(!isWasmInitialized) {{
+ throw new Error("initializeWasm() must be awaited first!");
+ }}
+ const nativeResponseValue = wasm.TS_{method_name}({native_call_argument_string});
+ {return_statement}
+ }}
+"""
+ 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):
out_java = ""
out_c = ""
out_java_struct = None
- out_java += ("\tpublic static native ")
+ out_java += ("\t")
out_c += (self.c_fn_ty_pfx)
out_c += (return_type_info.c_ty)
out_java += (return_type_info.java_ty)
if return_type_info.ret_conv is not None:
ret_conv_pfx, ret_conv_sfx = return_type_info.ret_conv
out_java += (" " + method_name + "(")
- out_c += (" " + self.c_fn_name_pfx + method_name.replace('_', '_1') + "(" + self.c_fn_args_pfx)
+ out_c += (" " + self.c_fn_name_define_pfx(method_name, True))
method_argument_string = ""
native_call_argument_string = ""
if idx != 0:
method_argument_string += (", ")
native_call_argument_string += ', '
- if arg_conv_info.c_ty != "void":
out_c += (", ")
if arg_conv_info.c_ty != "void":
out_c += (arg_conv_info.c_ty + " " + arg_conv_info.arg_name)
native_argument = f"{converter}({arg_conv_info.arg_name})"
method_argument_string += f"{arg_conv_info.arg_name}: {arg_conv_info.java_ty}"
native_call_argument_string += native_argument
+ 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)
- needs_decoding = return_type_info.c_ty in self.wasm_decoding_map
- return_value = 'nativeResponseValue'
- if needs_decoding:
- converter = self.wasm_decoding_map[return_type_info.c_ty]
- return_value = f"{converter}(nativeResponseValue)"
-
- out_java = f"""\texport function {method_name}({method_argument_string}): {return_type_info.java_ty} {{
- const nativeResponseValue = wasm.{method_name}({native_call_argument_string});
- return {return_value};
- \n\t}}
- \n"""
-
-
-
- if has_out_java_struct:
- out_java_struct = ""
- if not args_known:
- out_java_struct += ("\t// Skipped " + method_name + "\n")
- has_out_java_struct = False
+ out_java_struct = ""
+ if not args_known:
+ out_java_struct += ("\t// Skipped " + method_name + "\n")
+ else:
+ if not takes_self:
+ out_java_struct += (
+ "\tpublic static constructor_" + meth_n + "(")
else:
- meth_n = method_name[len(struct_meth) + 1:]
- if not takes_self:
- out_java_struct += (
- "\tpublic static " + return_type_info.java_hu_ty + " constructor_" + meth_n + "(")
- else:
- out_java_struct += ("\tpublic " + return_type_info.java_hu_ty + " " + meth_n + "(")
- for idx, arg in enumerate(argument_types):
- if idx != 0:
- if not takes_self or idx > 1:
- out_java_struct += (", ")
- elif takes_self:
- continue
- if arg.java_ty != "void":
- if arg.arg_name in default_constructor_args:
- for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
- if explode_idx != 0:
- out_java_struct += (", ")
- out_java_struct += (
- explode_arg.java_hu_ty + " " + arg.arg_name + "_" + explode_arg.arg_name)
- else:
- out_java_struct += (arg.java_hu_ty + " " + arg.arg_name)
+ out_java_struct += ("\tpublic " + meth_n + "(")
+ for idx, arg in enumerate(argument_types):
+ if idx != 0:
+ if not takes_self or idx > 1:
+ out_java_struct += (", ")
+ elif takes_self:
+ continue
+ if arg.java_ty != "void":
+ if arg.arg_name in default_constructor_args:
+ for explode_idx, explode_arg in enumerate(default_constructor_args[arg.arg_name]):
+ if explode_idx != 0:
+ out_java_struct += (", ")
+ out_java_struct += arg.arg_name + "_" + explode_arg.arg_name + ": " + explode_arg.java_hu_ty
+ else:
+ out_java_struct += arg.arg_name + ": " + arg.java_hu_ty
out_c += (") {\n")
if out_java_struct is not None:
- out_java_struct += (") {\n")
+ out_java_struct += "): " + return_type_info.java_hu_ty + " {\n"
for info in argument_types:
if info.arg_conv is not None:
out_c += ("\t" + info.arg_conv.replace('\n', "\n\t") + "\n")
out_c += ("\n\treturn ret_val;")
out_c += ("\n}\n\n")
- if has_out_java_struct:
+ if args_known:
out_java_struct += ("\t\t")
if return_type_info.java_ty != "void":
- out_java_struct += (return_type_info.java_ty + " ret = ")
+ out_java_struct += "const ret: " + return_type_info.java_ty + " = "
out_java_struct += ("bindings." + method_name + "(")
for idx, info in enumerate(argument_types):
if idx != 0:
elif info.from_hu_conv is not None and info.from_hu_conv[1] != "":
if not takes_self and return_type_info.to_hu_conv_name is not None:
out_java_struct += (
- "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name) + ";\n")
+ "\t\t" + info.from_hu_conv[1].replace("this", return_type_info.to_hu_conv_name).replace("\n", "\n\t\t") + ";\n")
else:
- out_java_struct += ("\t\t" + info.from_hu_conv[1] + ";\n")
+ out_java_struct += ("\t\t" + info.from_hu_conv[1].replace("\n", "\n\t\t") + ";\n")
if return_type_info.to_hu_conv_name is not None:
out_java_struct += ("\t\treturn " + return_type_info.to_hu_conv_name + ";\n")
out_java_struct += ("\t}\n\n")
return (out_java, out_c, out_java_struct)
+
+ def cleanup(self):
+ for struct in self.struct_file_suffixes:
+ with open(self.outdir + "/structs/" + struct + self.file_ext, "a") as src:
+ src.write(self.struct_file_suffixes[struct])