Jordan DeLong
75 linhas
2.9 KiB
C++
75 linhas
2.9 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010- Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_HPHP_BINARY_OP_EXPRESSION_H_
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#define incl_HPHP_BINARY_OP_EXPRESSION_H_
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#include <compiler/expression/expression_list.h>
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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DECLARE_BOOST_TYPES(BinaryOpExpression);
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class BinaryOpExpression : public Expression {
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public:
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BinaryOpExpression(EXPRESSION_CONSTRUCTOR_PARAMETERS,
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ExpressionPtr exp1, ExpressionPtr exp2, int op);
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DECLARE_EXPRESSION_VIRTUAL_FUNCTIONS;
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ExpressionPtr preOptimize(AnalysisResultConstPtr ar);
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ExpressionPtr postOptimize(AnalysisResultConstPtr ar);
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virtual bool isTemporary() const;
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virtual int getLocalEffects() const;
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virtual bool isLiteralString() const;
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virtual std::string getLiteralString() const;
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virtual bool containsDynamicConstant(AnalysisResultPtr ar) const;
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virtual bool isRefable(bool checkError = false) const;
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bool isShortCircuitOperator() const;
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bool isLogicalOrOperator() const;
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ExpressionPtr getStoreVariable() const { return m_exp1;}
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ExpressionPtr getExp1() { return m_exp1;}
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ExpressionPtr getExp2() { return m_exp2;}
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int getOp() const { return m_op;}
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ExpressionPtr foldConst(AnalysisResultConstPtr ar);
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ExpressionPtr foldRightAssoc(AnalysisResultConstPtr ar);
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virtual ExpressionPtr unneededHelper();
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virtual bool canonCompare(ExpressionPtr e) const;
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static int getConcatList(ExpressionPtrVec &ev, ExpressionPtr exp,
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bool &hasVoid);
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bool isAssignmentOp() const { return m_assign; }
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private:
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void optimizeTypes(AnalysisResultConstPtr ar);
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ExpressionPtr simplifyLogical(AnalysisResultConstPtr ar);
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ExpressionPtr simplifyArithmetic(AnalysisResultConstPtr ar);
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bool isOpEqual();
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ExpressionPtr m_exp1;
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ExpressionPtr m_exp2;
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int m_op;
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bool m_assign;
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mutable bool m_canThrow;
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};
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif // incl_HPHP_BINARY_OP_EXPRESSION_H_
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