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Java > Open Source Codes > proguard > classfile > instruction > visitor > InstructionCounter


1 /*
2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
3  * of Java bytecode.
4  *
5  * Copyright (c) 2002-2007 Eric Lafortune (eric@graphics.cornell.edu)
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License as published by the Free
9  * Software Foundation; either version 2 of the License, or (at your option)
10  * any later version.
11  *
12  * This program is distributed in the hope that it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15  * more details.
16  *
17  * You should have received a copy of the GNU General Public License along
18  * with this program; if not, write to the Free Software Foundation, Inc.,
19  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 package proguard.classfile.instruction.visitor;
22
23 import proguard.classfile.*;
24 import proguard.classfile.util.SimplifiedVisitor;
25 import proguard.classfile.attribute.CodeAttribute;
26 import proguard.classfile.instruction.visitor.InstructionVisitor;
27 import proguard.classfile.instruction.*;
28
29 /**
30  * This InstructionVisitor counts the number of instructions that has been visited.
31  *
32  * @author Eric Lafortune
33  */
34 public class InstructionCounter
35 extends SimplifiedVisitor
36 implements InstructionVisitor
37 {
38     private int count;
39
40
41     /**
42      * Returns the number of instructions that has been visited so far.
43      */
44     public int getCount()
45     {
46         return count;
47     }
48
49
50     // Implementations for InstructionVisitor.
51
52     public void visitAnyInstruction(Clazz clazz,
53                                     Method method,
54                                     CodeAttribute codeAttribute,
55                                     int offset,
56                                     Instruction instruction)
57     {
58         count++;
59     }
60 }
61
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