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Java > Open Source Codes > com > tc > asm > tree > TryCatchBlockNode


1 /***
2  * ASM: a very small and fast Java bytecode manipulation framework
3  * Copyright (c) 2000-2005 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 package com.tc.asm.tree;
31
32 import com.tc.asm.Label;
33 import com.tc.asm.MethodVisitor;
34
35 /**
36  * A node that represents a try catch block.
37  *
38  * @author Eric Bruneton
39  */
40 public class TryCatchBlockNode {
41
42     /**
43      * Beginning of the exception handler's scope (inclusive).
44      */
45     public Label start;
46
47     /**
48      * End of the exception handler's scope (exclusive).
49      */
50     public Label end;
51
52     /**
53      * Beginning of the exception handler's code.
54      */
55     public Label handler;
56
57     /**
58      * Internal name of the type of exceptions handled by the handler. May be
59      * <tt>null</tt> to catch any exceptions (for "finally" blocks).
60      */
61     public String JavaDoc type;
62
63     /**
64      * Constructs a new {@link TryCatchBlockNode}.
65      *
66      * @param start beginning of the exception handler's scope (inclusive).
67      * @param end end of the exception handler's scope (exclusive).
68      * @param handler beginning of the exception handler's code.
69      * @param type internal name of the type of exceptions handled by the
70      * handler, or <tt>null</tt> to catch any exceptions (for "finally"
71      * blocks).
72      */
73     public TryCatchBlockNode(
74         final Label start,
75         final Label end,
76         final Label handler,
77         final String JavaDoc type)
78     {
79         this.start = start;
80         this.end = end;
81         this.handler = handler;
82         this.type = type;
83     }
84
85     /**
86      * Makes the given visitor visit this try catch block.
87      *
88      * @param mv a method visitor.
89      */
90     public void accept(final MethodVisitor mv) {
91         mv.visitTryCatchBlock(start, end, handler, type);
92     }
93 }
94
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