LabelNode.java revision 674060f01e9090cd21b3c5656cc3204912ad17a6 
1/***
2 * ASM: a very small and fast Java bytecode manipulation framework
3 * Copyright (c) 2000-2007 INRIA, France Telecom
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the copyright holders nor the names of its
15 *    contributors may be used to endorse or promote products derived from
16 *    this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 */
30package org.mockito.asm.tree;
31
32import java.util.Map;
33
34import org.mockito.asm.Label;
35import org.mockito.asm.MethodVisitor;
36
37/**
38 * An {@link AbstractInsnNode} that encapsulates a {@link Label}.
39 */
40public class LabelNode extends AbstractInsnNode {
41
42    private Label label;
43
44    public LabelNode() {
45        super(-1);
46    }
47
48    public LabelNode(final Label label) {
49        super(-1);
50        this.label = label;
51    }
52
53    public int getType() {
54        return LABEL;
55    }
56
57    public Label getLabel() {
58        if (label == null) {
59            label = new Label();
60        }
61        return label;
62    }
63
64    public void accept(final MethodVisitor cv) {
65        cv.visitLabel(getLabel());
66    }
67
68    public AbstractInsnNode clone(final Map labels) {
69        return (LabelNode) labels.get(this);
70    }
71
72    public void resetLabel() {
73        label = null;
74    }
75}