mirror of
https://github.com/quizhizhe/LiteLoaderBDS-1.16.40.git
synced 2025-06-07 20:28:10 +00:00
69 lines
1.9 KiB
C++
69 lines
1.9 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 "LuaScope.hpp"
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#include "trait/TraitScope.h"
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namespace script::lua_backend {
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StackFrameScopeImpl::StackFrameScopeImpl(LuaEngine &engine) : engine_(&engine) {
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pushValue(engine_->lua_, {});
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base_ = lua_gettop(engine_->lua_);
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}
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int StackFrameScopeImpl::returnRawValue(int val) {
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auto lua = engine_->lua_;
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auto returnIndex = base_;
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if (val == 0) {
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lua_pushnil(lua);
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} else {
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lua_pushvalue(lua, val);
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}
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lua_replace(lua, returnIndex);
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hasReturnValue_ = true;
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return returnIndex;
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}
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StackFrameScopeImpl::~StackFrameScopeImpl() {
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if (hasReturnValue_) {
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lua_settop(engine_->lua_, base_);
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} else {
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lua_settop(engine_->lua_, base_ - 1);
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}
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}
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EngineScopeImpl::EngineScopeImpl(LuaEngine &engine, LuaEngine *prevEngine)
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: lockGuard_(engine.lock_), stack_(engine) {
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if (prevEngine && prevEngine != stack_.engine_) {
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prevEngine_ = prevEngine;
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prevEngine->lock_.unlock();
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}
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}
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EngineScopeImpl::~EngineScopeImpl() {
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if (prevEngine_) {
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prevEngine_->lock_.lock();
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}
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}
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ExitEngineScopeImpl::ExitEngineScopeImpl(LuaEngine &engine) : engine_(&engine) {
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engine_->lock_.unlock();
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}
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ExitEngineScopeImpl::~ExitEngineScopeImpl() { engine_->lock_.lock(); }
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} // namespace script::lua_backend
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