1 // ASM: a very small and fast Java bytecode manipulation framework 2 // Copyright (c) 2000-2011 INRIA, France Telecom 3 // All rights reserved. 4 // 5 // Redistribution and use in source and binary forms, with or without 6 // modification, are permitted provided that the following conditions 7 // are met: 8 // 1. Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // 2. Redistributions in binary form must reproduce the above copyright 11 // notice, this list of conditions and the following disclaimer in the 12 // documentation and/or other materials provided with the distribution. 13 // 3. Neither the name of the copyright holders nor the names of its 14 // contributors may be used to endorse or promote products derived from 15 // this software without specific prior written permission. 16 // 17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 21 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 // THE POSSIBILITY OF SUCH DAMAGE. 28 package org.objectweb.asm.tree; 29 30 import java.util.Map; 31 import org.objectweb.asm.MethodVisitor; 32 33 /** 34 * A node that represents a line number declaration. These nodes are pseudo instruction nodes in 35 * order to be inserted in an instruction list. 36 * 37 * @author Eric Bruneton 38 */ 39 public class LineNumberNode extends AbstractInsnNode { 40 41 /** A line number. This number refers to the source file from which the class was compiled. */ 42 public int line; 43 44 /** The first instruction corresponding to this line number. */ 45 public LabelNode start; 46 47 /** 48 * Constructs a new {@link LineNumberNode}. 49 * 50 * @param line a line number. This number refers to the source file from which the class was 51 * compiled. 52 * @param start the first instruction corresponding to this line number. 53 */ LineNumberNode(final int line, final LabelNode start)54 public LineNumberNode(final int line, final LabelNode start) { 55 super(-1); 56 this.line = line; 57 this.start = start; 58 } 59 60 @Override getType()61 public int getType() { 62 return LINE; 63 } 64 65 @Override accept(final MethodVisitor methodVisitor)66 public void accept(final MethodVisitor methodVisitor) { 67 methodVisitor.visitLineNumber(line, start.getLabel()); 68 } 69 70 @Override clone(final Map<LabelNode, LabelNode> clonedLabels)71 public AbstractInsnNode clone(final Map<LabelNode, LabelNode> clonedLabels) { 72 return new LineNumberNode(line, clone(start, clonedLabels)); 73 } 74 } 75