| package org.aspectj.apache.bcel.generic; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache BCEL" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache BCEL", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.aspectj.apache.bcel.Constants; |
| import org.aspectj.apache.bcel.util.ByteSequence; |
| |
| /** |
| * LOOKUPSWITCH - Switch with unordered set of values |
| * |
| * @version $Id: LOOKUPSWITCH.java,v 1.5 2011/04/05 15:15:33 aclement Exp $ |
| * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
| */ |
| public class LOOKUPSWITCH extends InstructionSelect { |
| |
| public LOOKUPSWITCH(int[] match, InstructionHandle[] targets, InstructionHandle target) { |
| super(LOOKUPSWITCH, match, targets, target); |
| // Alignment remainer assumed 0 here, until dump time |
| length = (short) (9 + matchLength * 8); |
| fixedLength = length; |
| } |
| |
| /** |
| * Dump instruction as byte code to stream out. |
| * |
| * @param out Output stream |
| */ |
| public void dump(DataOutputStream out) throws IOException { |
| super.dump(out); |
| out.writeInt(matchLength); // npairs |
| |
| for (int i = 0; i < matchLength; i++) { |
| out.writeInt(match[i]); // match-offset pairs |
| out.writeInt(indices[i] = getTargetOffset(targets[i])); |
| } |
| } |
| |
| /** |
| * Read needed data (e.g. index) from file. |
| */ |
| public LOOKUPSWITCH(ByteSequence bytes) throws IOException { |
| super(Constants.LOOKUPSWITCH, bytes); // reads padding |
| |
| matchLength = bytes.readInt(); |
| fixedLength = (short) (9 + matchLength * 8); |
| length = (short) (fixedLength + padding); |
| |
| match = new int[matchLength]; |
| indices = new int[matchLength]; |
| targets = new InstructionHandle[matchLength]; |
| |
| for (int i = 0; i < matchLength; i++) { |
| match[i] = bytes.readInt(); |
| indices[i] = bytes.readInt(); |
| } |
| } |
| |
| } |