1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 52270795fbe0b277bfd49f40950ecaa78583175ccBrian Carlstrom * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) 6b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 7b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is free software; you can redistribute it and/or modify it 8b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * under the terms of the GNU General Public License as published by the Free 9b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Software Foundation; either version 2 of the License, or (at your option) 10b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * any later version. 11b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 12b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This program is distributed in the hope that it will be useful, but WITHOUT 13b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * more details. 16b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 17b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * You should have received a copy of the GNU General Public License along 18b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * with this program; if not, write to the Free Software Foundation, Inc., 19b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 21b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopackage proguard.optimize.info; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.util.SimplifiedVisitor; 25b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wangimport proguard.classfile.visitor.*; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 28b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * This ClassVisitor marks all classes that contain package visible members. 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class PackageVisibleMemberContainingClassMarker 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends SimplifiedVisitor 34b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wangimplements ClassVisitor, 35b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang MemberVisitor 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 37b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang // Implementations for ClassVisitor. 38b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 39b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang public void visitAnyClass(Clazz clazz) 40b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang { 41b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang // Check the class itself. 422270795fbe0b277bfd49f40950ecaa78583175ccBrian Carlstrom if ((clazz.getAccessFlags() & ClassConstants.ACC_PUBLIC) == 0) 43b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang { 44b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang setPackageVisibleMembers(clazz); 45b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang } 46b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang else 47b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang { 48b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang // Check the members. 49b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang clazz.fieldsAccept(this); 50b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang clazz.methodsAccept(this); 51b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang } 52b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang } 53b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 54b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for MemberVisitor. 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitAnyMember(Clazz clazz, Member member) 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if ((member.getAccessFlags() & 602270795fbe0b277bfd49f40950ecaa78583175ccBrian Carlstrom (ClassConstants.ACC_PRIVATE | 612270795fbe0b277bfd49f40950ecaa78583175ccBrian Carlstrom ClassConstants.ACC_PUBLIC)) == 0) 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato setPackageVisibleMembers(clazz); 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Small utility methods. 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static void setPackageVisibleMembers(Clazz clazz) 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (info != null) 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato info.setContainsPackageVisibleMembers(); 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public static boolean containsPackageVisibleMembers(Clazz clazz) 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassOptimizationInfo info = ClassOptimizationInfo.getClassOptimizationInfo(clazz); 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return info == null || info.containsPackageVisibleMembers(); 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato}