mirror of
https://github.com/quizhizhe/LiteLoaderBDS-1.16.40.git
synced 2025-06-06 12:03:39 +00:00
122 lines
4.0 KiB
C++
122 lines
4.0 KiB
C++
/*
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* Tencent is pleased to support the open source community by making ScriptX available.
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* Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "QjsHelper.h"
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#include "QjsEngine.h"
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#include <ScriptX/ScriptX.h>
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#include <array>
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namespace script::qjs_backend {
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JSContext* currentContext() { return currentEngine().context_; }
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JSRuntime* currentRuntime() { return currentEngine().runtime_; }
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QjsEngine& currentEngine() { return EngineScope::currentEngineCheckedAs<qjs_backend::QjsEngine>(); }
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void checkException(JSValue value) {
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if (JS_IsException(value)) {
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checkException(-1);
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}
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}
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void checkException(int ret, const char* message) {
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if (ret < 0) {
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auto context = currentContext();
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auto pending = JS_GetException(currentContext());
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if (JS_IsObject(pending)) {
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throw Exception(qjs_interop::makeLocal<Value>(pending));
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} else {
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JS_FreeValue(context, pending);
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throw Exception(std::string(message));
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}
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}
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}
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JSValue dupValue(JSValue val, JSContext* context) {
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if (JS_VALUE_HAS_REF_COUNT(val)) {
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return JS_DupValue(context ? context : currentContext(), val);
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}
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return val;
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}
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void freeValue(JSValue val, JSContext* context) {
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if (JS_VALUE_HAS_REF_COUNT(val)) {
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JS_FreeValue(context ? context : currentContext(), val);
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}
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}
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JSValue throwException(const Exception& e, QjsEngine* engine) {
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JSContext* context = engine ? engine->context_ : currentContext();
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JS_Throw(context, qjs_interop::getLocal(e.exception()));
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return JS_EXCEPTION;
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}
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Local<Function> newRawFunction(QjsEngine* engine, void* data1, void* data2,
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RawFunctionCallback callback) {
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auto newPointer = [](JSContext* context, void* data) -> JSValue {
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if (!data) return JS_UNDEFINED;
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auto funData = JS_NewObjectClass(context, qjs_backend::QjsEngine::kPointerClassId);
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qjs_backend::checkException(funData);
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JS_SetOpaque(funData, data);
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return funData;
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};
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auto context = engine->context_;
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auto funData1 = newPointer(context, data1);
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auto funData2 = newPointer(context, data2);
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auto engineData = newPointer(context, engine);
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auto funCallback = newPointer(context, reinterpret_cast<void*>(callback));
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std::array<JSValue, 4> funDataArray{funData1, funData2, engineData, funCallback};
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auto fun = JS_NewCFunctionData(
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context,
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[](JSContext* ctx, JSValueConst this_val, int argc, JSValueConst* argv, int magic,
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JSValue* func_data) {
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auto data_1 = JS_GetOpaque(func_data[0], qjs_backend::QjsEngine::kPointerClassId);
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auto data_2 = JS_GetOpaque(func_data[1], qjs_backend::QjsEngine::kPointerClassId);
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auto engine = static_cast<QjsEngine*>(
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JS_GetOpaque(func_data[2], qjs_backend::QjsEngine::kPointerClassId));
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auto callback = reinterpret_cast<RawFunctionCallback>(
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JS_GetOpaque(func_data[3], qjs_backend::QjsEngine::kPointerClassId));
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try {
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auto args = qjs_interop::makeArguments(engine, this_val, argc, argv);
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auto ret = callback(args, data_1, data_2, (magic & JS_CALL_FLAG_CONSTRUCTOR) != 0);
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return qjs_interop::getLocal(ret, engine->context_);
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} catch (const Exception& e) {
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return qjs_backend::throwException(e, engine);
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}
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},
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0, 0, funDataArray.size(), funDataArray.data());
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for (auto v : funDataArray) {
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JS_FreeValue(context, v);
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}
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qjs_backend::checkException(fun);
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return qjs_interop::makeLocal<Function>(fun);
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}
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} // namespace script::qjs_backend
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