From: Matt Corallo Date: Sun, 9 Jan 2022 06:24:30 +0000 (+0000) Subject: Make String types language-specific and fix TS string conversion X-Git-Tag: v0.0.104.1^2~11 X-Git-Url: http://git.bitcoin.ninja/index.cgi?p=ldk-java;a=commitdiff_plain;h=1a849ce9a84a17a58ba0e19cb60dfdf95242356b Make String types language-specific and fix TS string conversion --- diff --git a/gen_type_mapping.py b/gen_type_mapping.py index c7f75484..b285ab34 100644 --- a/gen_type_mapping.py +++ b/gen_type_mapping.py @@ -200,7 +200,7 @@ class TypeMappingGenerator: return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = arg_conv_cleanup, ret_conv = ret_conv, ret_conv_name = arr_name + "_arr", to_hu_conv = to_hu_conv, to_hu_conv_name = to_hu_conv_name, from_hu_conv = from_hu_conv) - elif ty_info.java_ty == "String": + elif ty_info.java_fn_ty_arg == "Ljava/lang/String;": assert not is_nullable if not is_free: arg_conv = "LDKStr " + ty_info.var_name + "_conv = " + self.consts.str_ref_to_c_call(ty_info.var_name) + ";" @@ -209,6 +209,7 @@ class TypeMappingGenerator: arg_conv = "LDKStr dummy = { .chars = NULL, .len = 0, .chars_is_owned = false };" arg_conv_name = "dummy" if ty_info.arr_access is None: + assert False return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = None, ret_conv = ("const char* " + ty_info.var_name + "_str = ", @@ -219,11 +220,17 @@ class TypeMappingGenerator: free_str = "" if not holds_ref: free_str = "\nStr_free(" + ty_info.var_name + "_str);" + to_hu_conv = self.consts.str_to_hu_conv(ty_info.var_name) + to_hu_conv_name = None + if to_hu_conv is not None: + to_hu_conv_name = ty_info.var_name + "_conv" return ConvInfo(ty_info = ty_info, arg_name = ty_info.var_name, arg_conv = arg_conv, arg_conv_name = arg_conv_name, arg_conv_cleanup = None, ret_conv = ("LDKStr " + ty_info.var_name + "_str = ", ";\njstring " + ty_info.var_name + "_conv = " + self.consts.str_ref_to_native_call(ty_info.var_name + "_str." + ty_info.arr_access, ty_info.var_name + "_str." + ty_info.arr_len) + ";" + free_str), - ret_conv_name = ty_info.var_name + "_conv", to_hu_conv = None, to_hu_conv_name = None, from_hu_conv = None) + ret_conv_name = ty_info.var_name + "_conv", + to_hu_conv=to_hu_conv, to_hu_conv_name=to_hu_conv_name, + from_hu_conv = self.consts.str_from_hu_conv(ty_info.var_name)) elif ty_info.var_name == "" and not print_void: # We don't have a parameter name, and want one, just call it arg if not ty_info.is_native_primitive: diff --git a/genbindings.py b/genbindings.py index 4a495a1a..34434b2e 100755 --- a/genbindings.py +++ b/genbindings.py @@ -285,13 +285,15 @@ def java_c_types(fn_arg, ret_arr_len): fn_arg = fn_arg[9:].strip() is_primitive = True elif is_const and fn_arg.startswith("char *"): - java_ty = "String" + java_ty = consts.java_type_map["String"] + java_hu_ty = consts.java_hu_type_map["String"] c_ty = "const char*" fn_ty_arg = "Ljava/lang/String;" fn_arg = fn_arg[6:].strip() elif fn_arg.startswith("LDKStr"): rust_obj = "LDKStr" - java_ty = "String" + java_ty = consts.java_type_map["String"] + java_hu_ty = consts.java_hu_type_map["String"] c_ty = "jstring" fn_ty_arg = "Ljava/lang/String;" fn_arg = fn_arg[6:].strip() diff --git a/java_strings.py b/java_strings.py index c0eddca1..d477aa31 100644 --- a/java_strings.py +++ b/java_strings.py @@ -16,6 +16,12 @@ class Consts: uint32_t = ['int'], uint64_t = ['long'], ) + self.java_type_map = dict( + String = "String" + ) + self.java_hu_type_map = dict( + String = "String" + ) self.to_hu_conv_templates = dict( ptr = '{human_type} {var_name}_hu_conv = null; if ({var_name} < 0 || {var_name} > 4096) { {var_name}_hu_conv = new {human_type}(null, {var_name}); }', @@ -631,6 +637,10 @@ import javax.annotation.Nullable; return "str_ref_to_java(env, " + var_name + ", " + str_len + ")" def str_ref_to_c_call(self, var_name): return "java_to_owned_str(env, " + var_name + ")" + def str_to_hu_conv(self, var_name): + return None + def str_from_hu_conv(self, var_name): + return None def c_fn_name_define_pfx(self, fn_name, has_args): if has_args: @@ -950,7 +960,7 @@ import javax.annotation.Nullable; out_c = out_c + "\t" + fn_line.ret_ty_info.c_ty + " ret = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth" elif fn_line.ret_ty_info.c_ty == "void": out_c += "\t(*env)->Call" + fn_line.ret_ty_info.java_ty.title() + "Method(env, obj, j_calls->" + fn_line.fn_name + "_meth" - elif fn_line.ret_ty_info.java_ty == "String": + elif fn_line.ret_ty_info.java_hu_ty == "String": # Manually write out String methods as they're just an Object out_c += "\t" + fn_line.ret_ty_info.c_ty + " ret = (*env)->CallObjectMethod(env, obj, j_calls->" + fn_line.fn_name + "_meth" elif not fn_line.ret_ty_info.passed_as_ptr: diff --git a/typescript_strings.py b/typescript_strings.py index 79976674..892c63b8 100644 --- a/typescript_strings.py +++ b/typescript_strings.py @@ -22,6 +22,12 @@ class Consts: uint32_t = ['number', 'Uint32Array'], uint64_t = ['BigInt'], ) + self.java_type_map = dict( + String = "number" + ) + self.java_hu_type_map = dict( + String = "string" + ) self.wasm_decoding_map = dict( int8_tArray = 'decodeUint8Array' @@ -353,6 +359,10 @@ import * as InternalUtils from '../InternalUtils.mjs' 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 str_to_hu_conv(self, var_name): + return "const " + var_name + "_conv: string = bindings.decodeString(" + var_name + ");" + def str_from_hu_conv(self, var_name): + return ("bindings.encodeString(" + var_name + ")", "") def c_fn_name_define_pfx(self, fn_name, have_args): return " __attribute__((export_name(\"TS_" + fn_name + "\"))) TS_" + fn_name + "(" @@ -504,38 +514,22 @@ const decodeUint32Array = (arrayPointer: number, free = true) => { return actualArray; } -const encodeString = (string: string) => { - // make malloc count divisible by 4 - const memoryNeed = nextMultipleOfFour(string.length + 1); - const stringPointer = wasm.TS_malloc(memoryNeed); - const stringMemoryView = new Uint8Array( - wasm.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; +export function encodeString(str: string): number { + const charArray = new TextEncoder().encode(str); + return encodeUint8Array(charArray); } -const decodeString = (stringPointer: number, free = true) => { - const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer); - let cursor = 0; - let result = ''; - - while (memoryView[cursor] !== 0) { - result += String.fromCharCode(memoryView[cursor]); - cursor++; - } +export function decodeString(stringPointer: number, free = true): string { + const arraySize = getArrayLength(stringPointer); + const memoryView = new Uint8Array(wasm.memory.buffer, stringPointer + 4, arraySize); + const result = new TextDecoder("utf-8").decode(memoryView); if (free) { - wasm.wasm_free(stringPointer); + wasm.TS_free(stringPointer); } return result; -}; +} """ def init_str(self): @@ -816,7 +810,7 @@ export class {struct_name.replace("LDK","")} extends CommonBase {{ out_c += "js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) elif fn_line.ret_ty_info.java_ty == "void": out_c = out_c + "\tjs_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) - elif fn_line.ret_ty_info.java_ty == "String": + elif fn_line.ret_ty_info.java_hu_ty == "string": out_c = out_c + "\tjstring ret = (jstring)js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter) elif not fn_line.ret_ty_info.passed_as_ptr: out_c = out_c + "\treturn js_invoke_function_" + str(len(fn_line.args_ty)) + "(j_calls->instance_ptr, " + str(self.function_ptr_counter)