80 lines
2.2 KiB
Java
80 lines
2.2 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.shrikeBT;
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/**
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* This class represents the ?astore instructions.
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*/
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final public class ArrayStoreInstruction extends Instruction implements IArrayStoreInstruction {
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protected ArrayStoreInstruction(short opcode) {
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super(opcode);
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}
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private final static ArrayStoreInstruction[] preallocated = preallocate();
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private static ArrayStoreInstruction[] preallocate() {
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ArrayStoreInstruction[] r = new ArrayStoreInstruction[OP_sastore - OP_iastore + 2];
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for (short i = OP_iastore; i <= OP_sastore; i++) {
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r[i - OP_iastore] = new ArrayStoreInstruction(i);
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}
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r[OP_sastore - OP_iastore + 1] = r[OP_baload - OP_iaload];
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return r;
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}
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public static ArrayStoreInstruction make(String type) throws IllegalArgumentException {
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int i = Util.getTypeIndex(type);
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if (i < 0 || i > TYPE_boolean_index) {
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throw new IllegalArgumentException("Invalid type " + type + " for ArrayStoreInstruction");
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}
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return preallocated[i];
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}
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@Override
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public boolean equals(Object o) {
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if (o instanceof ArrayStoreInstruction) {
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ArrayStoreInstruction i = (ArrayStoreInstruction) o;
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return i.opcode == opcode;
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} else {
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return false;
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}
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}
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@Override
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public int hashCode() {
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return opcode + 148791;
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}
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@Override
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public int getPoppedCount() {
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return 3;
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}
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@Override
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public String getType() {
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return Constants.indexedTypes[opcode - OP_iastore];
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}
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@Override
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public String toString() {
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return "ArrayStore(" + getType() + ")";
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}
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@Override
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public void visit(IInstruction.Visitor v) throws NullPointerException {
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v.visitArrayStore(this);
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}
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@Override
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public boolean isPEI() {
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return true;
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}
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}
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