mirror of
https://github.com/Samsung/escargot.git
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78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (c) 2016 Samsung Electronics Co., Ltd
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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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#ifndef CallExpressionNode_h
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#define CallExpressionNode_h
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#include "ExpressionNode.h"
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#include "MemberExpressionNode.h"
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#include "PatternNode.h"
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namespace Escargot {
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class CallExpressionNode : public ExpressionNode {
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public:
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friend class ScriptParser;
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CallExpressionNode(Node* callee, ArgumentVector&& arguments)
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: ExpressionNode()
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{
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m_callee = callee;
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m_arguments = arguments;
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}
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Node* callee() { return m_callee; }
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virtual ASTNodeType type() { return ASTNodeType::CallExpression; }
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virtual void generateExpressionByteCode(ByteCodeBlock* codeBlock, ByteCodeGenerateContext* context)
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{
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if (m_callee->isIdentifier() && m_callee->asIdentifier()->name().string()->equals("eval")) {
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// TODO
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// process eval
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RELEASE_ASSERT_NOT_REACHED();
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}
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bool prevInCallingExpressionScope = context->m_inCallingExpressionScope;
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if (m_callee->isMemberExpression()) {
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context->m_inCallingExpressionScope = true;
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context->m_isHeadOfMemberExpression = true;
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}
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if (!m_callee->isMemberExpression()) {
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codeBlock->pushCode(LoadLiteral(ByteCodeLOC(m_loc.index), context->getRegister(), Value()), context, this);
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}
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m_callee->generateExpressionByteCode(codeBlock, context);
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size_t baseRegister = context->getLastRegisterIndex() - 1;
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context->m_inCallingExpressionScope = false;
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for (size_t i = 0; i < m_arguments.size(); i++) {
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m_arguments[i]->generateExpressionByteCode(codeBlock, context);
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}
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for (size_t i = 0; i < m_arguments.size(); i++) {
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context->giveUpRegister();
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}
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context->m_inCallingExpressionScope = prevInCallingExpressionScope;
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codeBlock->pushCode(CallFunction(ByteCodeLOC(m_loc.index), baseRegister, m_arguments.size()), context, this);
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// drop callee index;
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context->giveUpRegister();
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}
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protected:
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Node* m_callee; // callee: Expression;
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ArgumentVector m_arguments; // arguments: [ Expression ];
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};
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}
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#endif
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