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Java > Open Source Codes > soot > coffi > exception_table_entry


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 1997 Clark Verbrugge
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 /*
21  * Modified by the Sable Research Group and others 1997-1999.
22  * See the 'credits' file distributed with Soot for the complete list of
23  * contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
24  */
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32 package soot.coffi;
33
34 import java.io.*;
35
36
37 /** An entry in some code's exception table; describes an exception
38  * handler and the code it protects.
39  * @see Code_attribute
40  * @author Clark Verbrugge
41  */
42 class exception_table_entry {
43    /** Code offset of start of code protected by this handler (inclusive).
44     * @see exception_table_entry#start_inst
45     */
46    public int start_pc;
47    /** Code offset of end of code protected by this handler (exclusive).
48     * @see exception_table_entry#end_inst
49     */
50    public int end_pc;
51    /** Code offset of actual exception handler for the specified code block.
52     * @see exception_table_entry#handler_inst
53     * @see exception_table_entry#b
54     */
55    public int handler_pc;
56    /** Constant pool index of a CONSTANT_Class entry describing the exception
57     * this handler handles; if 0, this handler catches all exceptions.
58     * @see CONSTANT_Class
59     */
60    public int catch_type;
61    /** First Instruction object (after parsing) of code protected by this handler.
62     * @see exception_table_entry#start_pc
63     * @see Instruction
64     */
65    public Instruction start_inst;
66    /** First Instruction object (after parsing) of code not protected by this handler
67     * (or <i>null</i> for the end of code).
68     * @see exception_table_entry#end_pc
69     * @see Instruction
70     */
71    public Instruction end_inst;
72    /** Instruction object (after parsing) of start of handler code.
73     * @see exception_table_entry#handler_pc
74     * @see Instruction
75     */
76    public Instruction handler_inst;
77    /** Once basic blocks are constructed, the handler can be found by
78     * referencing its basic block.
79     * @see BasicBlock
80     */
81    public BasicBlock b;
82 }
83
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