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52 lines
1.7 KiB
C++
52 lines
1.7 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 ExpressionStatementNode_h
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#define ExpressionStatementNode_h
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#include "ExpressionNode.h"
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namespace Escargot {
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// An expression statement, i.e., a statement consisting of a single expression.
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class ExpressionStatementNode : public StatementNode {
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public:
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friend class ScriptParser;
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ExpressionStatementNode(Node* expression)
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: StatementNode()
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{
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m_expression = expression;
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}
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virtual ASTNodeType type() { return ASTNodeType::ExpressionStatement; }
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Node* expression() { return m_expression; }
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virtual void generateStatementByteCode(ByteCodeBlock* codeBlock, ByteCodeGenerateContext* context)
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{
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#ifndef NDEBUG
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size_t before = context->m_baseRegisterCount;
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#endif
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m_expression->generateExpressionByteCode(codeBlock, context);
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// codeBlock->pushCode(StoreExecutionResult(ByteCodeLOC(m_loc.index), context->getLastRegisterIndex()), context, this);
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context->giveUpRegister();
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ASSERT(context->m_baseRegisterCount == before);
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}
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protected:
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Node* m_expression; // expression: Expression;
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};
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}
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#endif
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