67 lines
1.9 KiB
Java
67 lines
1.9 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.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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public class SetPrototype extends SSAInstruction {
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private final int object;
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private final int prototype;
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public SetPrototype(int object, int prototype) {
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this.object = object;
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this.prototype = prototype;
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}
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@Override
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public int getNumberOfUses() {
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return 2;
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}
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@Override
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public int getUse(int j) throws UnsupportedOperationException {
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assert j >= 0 && j <= 1;
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return (j==0)? object: prototype;
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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).SetPrototype((uses != null ? uses[0] : object), (uses != null ? uses[1] : prototype));
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}
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@Override
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public String toString(SymbolTable symbolTable) {
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return "set_prototype(" + getValueString(symbolTable, object) + ", " + getValueString(symbolTable, prototype) + ")";
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}
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@Override
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public void visit(IVisitor v) {
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((JSInstructionVisitor)v).visitSetPrototype(this);
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}
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@Override
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public int hashCode() {
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final int prime = 31;
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int result = 1;
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result = prime * result + object;
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result = prime * result + prototype;
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return result;
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}
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@Override
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public boolean isFallThrough() {
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return true;
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}
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}
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