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 org.objectweb.asm.tree;
31 
32 import org.objectweb.asm.Label;
33 import org.objectweb.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 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      */
TryCatchBlockNode( final Label start, final Label end, final Label handler, final String type)73     public TryCatchBlockNode(
74         final Label start,
75         final Label end,
76         final Label handler,
77         final String 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      */
accept(final MethodVisitor mv)90     public void accept(final MethodVisitor mv) {
91         mv.visitTryCatchBlock(start, end, handler, type);
92     }
93 }
94