89 lines
2.5 KiB
Java
89 lines
2.5 KiB
Java
/*******************************************************************************
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* Copyright (c) 2002 - 2006 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.ssa;
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import com.ibm.wala.types.TypeReference;
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/**
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* SSA instruction representing an array store.
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*/
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public abstract class SSAArrayStoreInstruction extends SSAArrayReferenceInstruction {
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private final int value;
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protected SSAArrayStoreInstruction(int iindex, int arrayref, int index, int value, TypeReference elementType) {
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super(iindex, arrayref, index, elementType);
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this.value = value;
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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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if (uses != null && uses.length < 3) {
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throw new IllegalArgumentException("uses.length < 3");
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}
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return insts.ArrayStoreInstruction(iindex, uses == null ? getArrayRef() : uses[0], uses == null ? getIndex() : uses[1],
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uses == null ? value : uses[2], getElementType());
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}
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@Override
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public String toString(SymbolTable symbolTable) {
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return "arraystore " + getValueString(symbolTable, getArrayRef()) + "[" + getValueString(symbolTable, getIndex())
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+ "] = " + getValueString(symbolTable, value);
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}
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/**
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* @see com.ibm.wala.ssa.SSAInstruction#visit(IVisitor)
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* @throws IllegalArgumentException
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* if v is null
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*/
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@Override
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public void visit(IVisitor v) {
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if (v == null) {
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throw new IllegalArgumentException("v is null");
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}
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v.visitArrayStore(this);
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}
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/**
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* @see com.ibm.wala.ssa.SSAInstruction#getNumberOfUses()
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*/
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@Override
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public int getNumberOfUses() {
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return 3;
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}
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@Override
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public int getNumberOfDefs() {
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return 0;
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}
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public int getValue() {
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return value;
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}
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/**
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* @see com.ibm.wala.ssa.SSAInstruction#getUse(int)
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*/
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@Override
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public int getUse(int j) {
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if (j == 2)
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return value;
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else
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return super.getUse(j);
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}
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@Override
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public int hashCode() {
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return 6311 * value ^ 2371 * getArrayRef() + getIndex();
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}
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}
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