InstructionCounter.java revision 8a6199f0c36a778f22394364347a301b0b28e94b 
1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2013 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 */
21package proguard.classfile.instruction.visitor;
22
23import proguard.classfile.*;
24import proguard.classfile.attribute.CodeAttribute;
25import proguard.classfile.instruction.Instruction;
26import proguard.classfile.util.SimplifiedVisitor;
27
28/**
29 * This InstructionVisitor counts the number of instructions that has been visited.
30 *
31 * @author Eric Lafortune
32 */
33public class InstructionCounter
34extends      SimplifiedVisitor
35implements   InstructionVisitor
36{
37    private int count;
38
39
40    /**
41     * Returns the number of instructions that has been visited so far.
42     */
43    public int getCount()
44    {
45        return count;
46    }
47
48
49    // Implementations for InstructionVisitor.
50
51    public void visitAnyInstruction(Clazz         clazz,
52                                    Method        method,
53                                    CodeAttribute codeAttribute,
54                                    int           offset,
55                                    Instruction   instruction)
56    {
57        count++;
58    }
59}
60