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Java > Open Source Codes > soot > tagkit > LineNumberTag


1 /* Soot - a J*va Optimization Framework
2  * Copyright (C) 2001 Feng Qian
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  */
25
26
27 package soot.tagkit;
28 import soot.*;
29
30 public class LineNumberTag implements Tag
31 {
32     /* it is a u2 value representing line number. */
33     int line_number;
34     public LineNumberTag(int ln)
35     {
36     line_number = ln;
37     }
38
39     public String JavaDoc getName()
40     {
41     return "LineNumberTag";
42     }
43
44     public byte[] getValue()
45     {
46     byte[] v = new byte[2];
47     v[0] = (byte)(line_number/256);
48     v[1] = (byte)(line_number%256);
49     return v;
50     }
51
52     public int getLineNumber()
53     {
54     return line_number;
55     }
56
57     public String JavaDoc toString()
58     {
59     return ""+line_number;
60     }
61
62     /*
63     protected void finalize()
64     {
65     try {
66         throw new RuntimeException();
67     } catch (RuntimeException re)
68     {
69         G.v().out.println("I, at line "+line_number+", dead here.");
70         re.printStackTrace();
71     }
72     }
73     */
74 }
75
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