44 lines
1.5 KiB
Java
44 lines
1.5 KiB
Java
/*******************************************************************************
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* Copyright (c) 2013 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package com.ibm.wala.cast.js.ssa;
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import com.ibm.wala.ssa.SSAAbstractUnaryInstruction;
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import com.ibm.wala.ssa.SSAInstruction;
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import com.ibm.wala.ssa.SSAInstructionFactory;
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import com.ibm.wala.ssa.SymbolTable;
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/**
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* Non-deterministically assigns some object in the prototype chain
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* of val (or val itself) to result.
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*/
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public class PrototypeLookup extends SSAAbstractUnaryInstruction {
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public PrototypeLookup(int iindex, int result, int val) {
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super(iindex, result, val);
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}
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@Override
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public SSAInstruction copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses) {
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return ((JSInstructionFactory)insts).PrototypeLookup(iindex, (defs != null ? defs[0] : getDef(0)), (uses != null ? uses[0] : getUse(0)));
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}
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@Override
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public String toString(SymbolTable symbolTable) {
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return getValueString(symbolTable, getDef(0)) + " = prototype_values(" + getValueString(symbolTable, getUse(0)) + ")";
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}
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@Override
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public void visit(IVisitor v) {
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((JSInstructionVisitor)v).visitPrototypeLookup(this);
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}
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}
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