01: /**
02: * YGuard -- an obfuscation library for Java(TM) classfiles.
03: *
04: * Original Copyright (c) 1999 Mark Welsh (markw@retrologic.com)
05: * Modifications Copyright (c) 2002 yWorks GmbH (yguard@yworks.com)
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2 of the License, or (at your option) any later version.
11: *
12: * This library is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: *
21: * The author may be contacted at yguard@yworks.com
22: *
23: * Java and all Java-based marks are trademarks or registered
24: * trademarks of Sun Microsystems, Inc. in the U.S. and other countries.
25: */package com.yworks.yguard.obf.classfile;
26:
27: import java.io.*;
28: import java.util.*;
29:
30: /**
31: * Representation of an Line Number table entry.
32: *
33: * @author Mark Welsh
34: */
35: public class LineNumberInfo {
36: // Constants -------------------------------------------------------------
37:
38: // Fields ----------------------------------------------------------------
39: private int u2startpc;
40: private int u2lineNumber;
41:
42: public LineNumberInfo(int startPC, int lineNumber) {
43: setLineNumber(lineNumber);
44: setStartPC(startPC);
45: }
46:
47: // Class Methods ---------------------------------------------------------
48: public static LineNumberInfo create(DataInput din)
49: throws java.io.IOException {
50: LineNumberInfo lni = new LineNumberInfo();
51: lni.read(din);
52: return lni;
53: }
54:
55: public void setLineNumber(int number) {
56: this .u2lineNumber = number;
57: }
58:
59: public int getLineNumber() {
60: return this .u2lineNumber;
61: }
62:
63: public int getStartPC() {
64: return this .u2startpc;
65: }
66:
67: public void setStartPC(int startPc) {
68: this .u2startpc = startPc;
69: }
70:
71: // Instance Methods ------------------------------------------------------
72: public LineNumberInfo() {
73: }
74:
75: private void read(DataInput din) throws java.io.IOException {
76: u2startpc = din.readUnsignedShort();
77: u2lineNumber = din.readUnsignedShort();
78: }
79:
80: /** Export the representation to a DataOutput stream. */
81: public void write(DataOutput dout) throws java.io.IOException {
82: dout.writeShort(u2startpc);
83: dout.writeShort(u2lineNumber);
84: }
85: }
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