PackageVisibleMemberContainingClassMarker.java revision 9f606f95f03a75961498803e24bee6799a7c0885 
1/*
2 * ProGuard -- shrinking, optimization, obfuscation, and preverification
3 *             of Java bytecode.
4 *
5 * Copyright (c) 2002-2009 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.optimize.info;
22
23import proguard.classfile.*;
24import proguard.classfile.util.SimplifiedVisitor;
25import proguard.classfile.visitor.MemberVisitor;
26
27/**
28 * This MemberVisitor marks all classes that contain visited package visible
29 * members.
30 *
31 * @author Eric Lafortune
32 */
33public class PackageVisibleMemberContainingClassMarker
34extends      SimplifiedVisitor
35implements   MemberVisitor
36{
37    // Implementations for MemberVisitor.
38
39    public void visitAnyMember(Clazz clazz, Member member)
40    {
41        if ((member.getAccessFlags() &
42             (ClassConstants.INTERNAL_ACC_PRIVATE |
43              ClassConstants.INTERNAL_ACC_PUBLIC)) == 0)
44        {
45            setPackageVisibleMembers(clazz);
46        }
47    }
48
49
50    // Small utility methods.
51
52    private static void setPackageVisibleMembers(Clazz clazz)
53    {
54        ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz);
55        if (info != null)
56        {
57            info.setContainsPackageVisibleMembers();
58        }
59    }
60
61
62    public static boolean containsPackageVisibleMembers(Clazz clazz)
63    {
64        ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz);
65        return info == null || info.containsPackageVisibleMembers();
66    }
67}