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.classfile.visitor; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This <code>MemberVisitor</code> lets a given <code>MemberVisitor</code> 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * visit all members that have the same name and type as the visited methods 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * in the class hierarchy of a given target class. 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class SimilarMemberVisitor 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimplements MemberVisitor 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final Clazz targetClass; 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitThisMember; 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitSuperMembers; 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitInterfaceMembers; 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitOverridingMembers; 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final MemberVisitor memberVisitor; 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new SimilarMemberVisitor. 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param targetClass the class in whose hierarchy to look for 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * the visited class members. 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitThisMember specifies whether to visit the class 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * members in the target class itself. 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitSuperMembers specifies whether to visit the class 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * members in the super classes of the target 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * class. 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitInterfaceMembers specifies whether to visit the class 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * members in the interface classes of the 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * target class. 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitOverridingMembers specifies whether to visit the class 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * members in the subclasses of the target 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * class. 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param memberVisitor the <code>MemberVisitor</code> to which 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * visits will be delegated. 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public SimilarMemberVisitor(Clazz targetClass, 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitThisMember, 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitSuperMembers, 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitInterfaceMembers, 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitOverridingMembers, 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato MemberVisitor memberVisitor) 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.targetClass = targetClass; 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitThisMember = visitThisMember; 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitSuperMembers = visitSuperMembers; 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitInterfaceMembers = visitInterfaceMembers; 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitOverridingMembers = visitOverridingMembers; 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.memberVisitor = memberVisitor; 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for MemberVisitor. 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramField(ProgramClass programClass, ProgramField programField) 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetClass.hierarchyAccept(visitThisMember, 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperMembers, 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaceMembers, 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitOverridingMembers, 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new NamedFieldVisitor(programField.getName(programClass), 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.getDescriptor(programClass), 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato memberVisitor)); 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetClass.hierarchyAccept(visitThisMember, 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperMembers, 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaceMembers, 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitOverridingMembers, 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new NamedFieldVisitor(libraryField.getName(libraryClass), 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato libraryField.getDescriptor(libraryClass), 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato memberVisitor)); 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetClass.hierarchyAccept(visitThisMember, 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperMembers, 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaceMembers, 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitOverridingMembers, 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new NamedMethodVisitor(programMethod.getName(programClass), 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.getDescriptor(programClass), 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato memberVisitor)); 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetClass.hierarchyAccept(visitThisMember, 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperMembers, 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaceMembers, 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitOverridingMembers, 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new NamedMethodVisitor(libraryMethod.getName(libraryClass), 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato libraryMethod.getDescriptor(libraryClass), 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato memberVisitor)); 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato}