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- 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 (https://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
- * <https://www.apache.org/>.
- */
-
- import org.aspectj.apache.bcel.classfile.LineNumber;
-
- /**
- * This class represents a line number within a method, i.e., give an instruction
- * a line number corresponding to the source code line.
- *
- * @version $Id: LineNumberGen.java,v 1.5 2008/05/28 23:53:00 aclement Exp $
- * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
- * @see LineNumber
- * @see MethodGen
- */
- public class LineNumberGen
- implements InstructionTargeter, Cloneable, java.io.Serializable
- {
- private InstructionHandle ih;
- private int src_line;
-
- /**
- * Create a line number.
- *
- * @param ih instruction handle to reference
- */
- public LineNumberGen(InstructionHandle ih, int src_line) {
- setInstruction(ih);
- setSourceLine(src_line);
- }
-
- /**
- * @return true, if ih is target of this line number
- */
- public boolean containsTarget(InstructionHandle ih) {
- return this.ih == ih;
- }
-
- /**
- * @param old_ih old target
- * @param new_ih new target
- */
- public void updateTarget(InstructionHandle old_ih, InstructionHandle new_ih) {
- if(old_ih != ih)
- throw new ClassGenException("Not targeting " + old_ih + ", but " + ih + "}");
- else
- setInstruction(new_ih);
- }
-
- /**
- * Get LineNumber attribute .
- *
- * This relies on that the instruction list has already been dumped to byte code or
- * or that the `setPositions' methods has been called for the instruction list.
- */
- public LineNumber getLineNumber() {
- return new LineNumber(ih.getPosition(), src_line);
- }
-
- public void setInstruction(InstructionHandle ih) {
- InstructionBranch.notifyTarget(this.ih, ih, this);
-
- this.ih = ih;
- }
-
- public Object clone() {
- try {
- return super.clone();
- } catch(CloneNotSupportedException e) {
- System.err.println(e);
- return null;
- }
- }
-
- public InstructionHandle getInstruction() { return ih; }
- public void setSourceLine(int src_line) { this.src_line = src_line; }
- public int getSourceLine() { return src_line; }
- }
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