49 lines
2.0 KiB
JavaScript
49 lines
2.0 KiB
JavaScript
/*
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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"use strict";
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class ReadModifyWriteExpression extends Expression {
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constructor(origin, lValue, type = null)
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{
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super(origin);
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this._lValue = lValue;
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this.oldValueVar = new AnonymousVariable(origin, type);
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this.newValueVar = new AnonymousVariable(origin, type);
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this.newValueExp = null;
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this.resultExp = null;
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}
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get lValue() { return this._lValue; }
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oldValueRef() { return VariableRef.wrap(this.oldValueVar); }
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newValueRef() { return VariableRef.wrap(this.newValueVar); }
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toString()
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{
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return "RMW(" + this.lValue + ", " + this.oldValueVar + ", " + this.newValueVar + ", " + this.newValueExp + ", " + this.resultExp + ")";
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}
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}
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