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/Aimport com.sun.org.apache.bcel.internal.classfile.*;
286N/A
286N/A/**
286N/A * This class represents a line number within a method, i.e., give an instruction
286N/A * a line number corresponding to the source code line.
286N/A *
286N/A * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
286N/A * @see LineNumber
286N/A * @see MethodGen
286N/A */
286N/Apublic class LineNumberGen
286N/A implements InstructionTargeter, Cloneable, java.io.Serializable
286N/A{
286N/A private InstructionHandle ih;
286N/A private int src_line;
286N/A
286N/A /**
286N/A * Create a line number.
286N/A *
286N/A * @param ih instruction handle to reference
286N/A */
286N/A public LineNumberGen(InstructionHandle ih, int src_line) {
286N/A setInstruction(ih);
286N/A setSourceLine(src_line);
286N/A }
286N/A
286N/A /**
286N/A * @return true, if ih is target of this line number
286N/A */
570N/A @Override
286N/A public boolean containsTarget(InstructionHandle ih) {
286N/A return this.ih == ih;
286N/A }
286N/A
286N/A /**
286N/A * @param old_ih old target
286N/A * @param new_ih new target
286N/A */
570N/A @Override
286N/A public void updateTarget(InstructionHandle old_ih, InstructionHandle new_ih) {
286N/A if(old_ih != ih)
286N/A throw new ClassGenException("Not targeting " + old_ih + ", but " + ih + "}");
286N/A else
286N/A setInstruction(new_ih);
286N/A }
286N/A
286N/A /**
286N/A * Get LineNumber attribute .
286N/A *
286N/A * This relies on that the instruction list has already been dumped to byte code or
286N/A * or that the `setPositions' methods has been called for the instruction list.
286N/A */
286N/A public LineNumber getLineNumber() {
286N/A return new LineNumber(ih.getPosition(), src_line);
286N/A }
286N/A
570N/A public final void setInstruction(InstructionHandle ih) {
570N/A BranchInstruction.notifyTargetChanging(this.ih, this);
286N/A this.ih = ih;
570N/A BranchInstruction.notifyTargetChanged(this.ih, this);
286N/A }
286N/A
570N/A @Override
286N/A public Object clone() {
286N/A try {
286N/A return super.clone();
286N/A } catch(CloneNotSupportedException e) {
286N/A System.err.println(e);
286N/A return null;
286N/A }
286N/A }
286N/A
286N/A public InstructionHandle getInstruction() { return ih; }
286N/A public void setSourceLine(int src_line) { this.src_line = src_line; }
286N/A public int getSourceLine() { return src_line; }
286N/A}