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