286N/A/*
286N/A * reserved comment block
286N/A * DO NOT REMOVE OR ALTER!
286N/A */
286N/Apackage com.sun.org.apache.bcel.internal.generic;
286N/A
286N/A/* ====================================================================
286N/A * The Apache Software License, Version 1.1
286N/A *
286N/A * Copyright (c) 2001 The Apache Software Foundation. All rights
286N/A * reserved.
286N/A *
286N/A * Redistribution and use in source and binary forms, with or without
286N/A * modification, are permitted provided that the following conditions
286N/A * are met:
286N/A *
286N/A * 1. Redistributions of source code must retain the above copyright
286N/A * notice, this list of conditions and the following disclaimer.
286N/A *
286N/A * 2. Redistributions in binary form must reproduce the above copyright
286N/A * notice, this list of conditions and the following disclaimer in
286N/A * the documentation and/or other materials provided with the
286N/A * distribution.
286N/A *
286N/A * 3. The end-user documentation included with the redistribution,
286N/A * if any, must include the following acknowledgment:
286N/A * "This product includes software developed by the
286N/A * Apache Software Foundation (http://www.apache.org/)."
286N/A * Alternately, this acknowledgment may appear in the software itself,
286N/A * if and wherever such third-party acknowledgments normally appear.
286N/A *
286N/A * 4. The names "Apache" and "Apache Software Foundation" and
286N/A * "Apache BCEL" must not be used to endorse or promote products
286N/A * derived from this software without prior written permission. For
286N/A * written permission, please contact apache@apache.org.
286N/A *
286N/A * 5. Products derived from this software may not be called "Apache",
286N/A * "Apache BCEL", nor may "Apache" appear in their name, without
286N/A * prior written permission of the Apache Software Foundation.
286N/A *
286N/A * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
286N/A * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
286N/A * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
286N/A * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
286N/A * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
286N/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
286N/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
286N/A * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
286N/A * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
286N/A * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
286N/A * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
286N/A * SUCH DAMAGE.
286N/A * ====================================================================
286N/A *
286N/A * This software consists of voluntary contributions made by many
286N/A * individuals on behalf of the Apache Software Foundation. For more
286N/A * information on the Apache Software Foundation, please see
286N/A * <http://www.apache.org/>.
286N/A */
286N/A
286N/A/**
286N/A * Thrown by InstructionList.remove() when one or multiple disposed instruction
286N/A * are still being referenced by a InstructionTargeter object. I.e. the
286N/A * InstructionTargeter has to be notified that (one of) the InstructionHandle it
286N/A * is referencing is being removed from the InstructionList and thus not valid anymore.
286N/A *
286N/A * Making this an exception instead of a return value forces the user to handle
286N/A * these case explicitely in a try { ... } catch. The following code illustrates
286N/A * how this may be done:
286N/A *
286N/A * <PRE>
286N/A * ...
286N/A * try {
286N/A * il.delete(start_ih, end_ih);
286N/A * } catch(TargetLostException e) {
286N/A * InstructionHandle[] targets = e.getTargets();
286N/A * for(int i=0; i < targets.length; i++) {
286N/A * InstructionTargeter[] targeters = targets[i].getTargeters();
286N/A *
286N/A * for(int j=0; j < targeters.length; j++)
286N/A * targeters[j].updateTarget(targets[i], new_target);
286N/A * }
286N/A * }
286N/A * </PRE>
286N/A *
286N/A * @see InstructionHandle
286N/A * @see InstructionList
286N/A * @see InstructionTargeter
286N/A * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
286N/A */
286N/Apublic final class TargetLostException extends Exception {
286N/A private InstructionHandle[] targets;
286N/A
286N/A TargetLostException(InstructionHandle[] t, String mesg) {
286N/A super(mesg);
286N/A targets = t;
286N/A }
286N/A
286N/A /**
286N/A * @return list of instructions still being targeted.
286N/A */
286N/A public InstructionHandle[] getTargets() { return targets; }
286N/A}