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Java > Open Source Codes > com > jeantessier > classreader > LineNumber


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.classreader;
34
35 import java.io.*;
36
37 import org.apache.log4j.*;
38
39 public class LineNumber implements Visitable {
40     private LineNumberTable_attribute lineNumberTable;
41     private int startPC;
42     private int lineNumber;
43
44     public LineNumber(LineNumberTable_attribute lineNumberTable, DataInputStream in) throws IOException {
45         setLineNumberTable(lineNumberTable);
46
47         startPC = in.readUnsignedShort();
48         Logger.getLogger(getClass()).debug("Line number table start PC: " + startPC);
49
50         lineNumber = in.readUnsignedShort();
51         Logger.getLogger(getClass()).debug("Line number: " + lineNumber);
52     }
53
54     public LineNumberTable_attribute getLineNumberTable() {
55         return lineNumberTable;
56     }
57
58     private void setLineNumberTable(LineNumberTable_attribute lineNumberTable) {
59         this.lineNumberTable = lineNumberTable;
60     }
61
62     public int getStartPC() {
63         return startPC;
64     }
65
66     public int getLineNumber() {
67         return lineNumber;
68     }
69
70     public String JavaDoc toString() {
71         return "Line number";
72     }
73
74     public void accept(Visitor visitor) {
75         visitor.visitLineNumber(this);
76     }
77 }
78
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