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Java > Open Source Codes > org > logicalcobwebs > asm > tree > LookupSwitchInsnNode


1 /***
2  * ASM: a very small and fast Java bytecode manipulation framework
3  * Copyright (c) 2000,2002,2003 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  *
30  * Contact: Eric.Bruneton@rd.francetelecom.com
31  *
32  * Author: Eric Bruneton
33  */
34
35 package org.logicalcobwebs.asm.tree;
36
37 import org.logicalcobwebs.asm.Label;
38 import org.logicalcobwebs.asm.Constants;
39 import org.logicalcobwebs.asm.CodeVisitor;
40
41 import java.util.List JavaDoc;
42 import java.util.ArrayList JavaDoc;
43 import java.util.Arrays JavaDoc;
44
45 /**
46  * A node that represents a LOOKUPSWITCH instruction.
47  */
48
49 public class LookupSwitchInsnNode extends AbstractInsnNode {
50
51   /**
52    * Beginning of the default handler block.
53    */
54
55   public Label dflt;
56
57   /**
58    * The values of the keys. This list is a list a {@link java.lang.Integer
59    * Integer} objects.
60    */
61
62   public final List JavaDoc keys;
63
64   /**
65    * Beginnings of the handler blocks. This list is a list of {@link Label
66    * Label} objects.
67    */
68
69   public final List JavaDoc labels;
70
71   /**
72    * Constructs a new {@link LookupSwitchInsnNode LookupSwitchInsnNode} object.
73    *
74    * @param dflt beginning of the default handler block.
75    * @param keys the values of the keys.
76    * @param labels beginnings of the handler blocks. <tt>labels[i]</tt> is the
77    * beginning of the handler block for the <tt>keys[i]</tt> key.
78    */
79
80   public LookupSwitchInsnNode (
81     final Label dflt,
82     final int[] keys,
83     final Label[] labels)
84   {
85     super(Constants.LOOKUPSWITCH);
86     this.dflt = dflt;
87     this.keys = new ArrayList JavaDoc();
88     this.labels = new ArrayList JavaDoc();
89     if (keys != null) {
90       for (int i = 0; i < keys.length; ++i) {
91         this.keys.add(new Integer JavaDoc(keys[i]));
92       }
93     }
94     if (labels != null) {
95       this.labels.addAll(Arrays.asList(labels));
96     }
97   }
98
99   public void accept (final CodeVisitor cv) {
100     int[] keys = new int[this.keys.size()];
101     for (int i = 0; i < keys.length; ++i) {
102       keys[i] = ((Integer JavaDoc)this.keys.get(i)).intValue();
103     }
104     Label[] labels = new Label[this.labels.size()];
105     this.labels.toArray(labels);
106     cv.visitLookupSwitchInsn(dflt, keys, labels);
107   }
108 }
109
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