Jordan DeLong
70 linhas
2.7 KiB
C++
70 linhas
2.7 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_ASSIGNMENT_EXPRESSION_H_
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#define incl_HPHP_ASSIGNMENT_EXPRESSION_H_
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#include <compiler/expression/expression.h>
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namespace HPHP {
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///////////////////////////////////////////////////////////////////////////////
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DECLARE_BOOST_TYPES(AssignmentExpression);
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struct TypedValue;
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class AssignmentExpression : public Expression, public IParseHandler {
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public:
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AssignmentExpression(EXPRESSION_CONSTRUCTOR_PARAMETERS,
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ExpressionPtr variable, ExpressionPtr value,
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bool ref, bool rhsFirst = false);
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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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// implementing IParseHandler
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virtual void onParseRecur(AnalysisResultConstPtr ar, ClassScopePtr scope);
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virtual bool isRefable(bool checkError = false) const {
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if (checkError) return true;
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return m_value->isRefable() &&
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(m_value->getContext() & Expression::RefValue);
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}
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ExpressionPtr getVariable() { return m_variable;}
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ExpressionPtr getStoreVariable() const { return m_variable; }
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ExpressionPtr getValue() { return m_value;}
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void setVariable(ExpressionPtr v) { m_variable = v; }
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void setValue(ExpressionPtr v) { m_value = v; }
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bool isRhsFirst() { return m_rhsFirst; }
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int getLocalEffects() const;
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// $GLOBALS[<literal-string>] = <scalar>;
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bool isSimpleGlobalAssign(StringData **name, TypedValue *tv) const;
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private:
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ExpressionPtr optimize(AnalysisResultConstPtr ar);
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ExpressionPtr m_variable;
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ExpressionPtr m_value;
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bool m_ref;
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bool m_rhsFirst;
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};
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///////////////////////////////////////////////////////////////////////////////
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}
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#endif // incl_HPHP_ASSIGNMENT_EXPRESSION_H_
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