1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * Copyright (c) 2002-2013 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/** 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This <code>ClassVisitor</code> lets a given <code>ClassVisitor</code> 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * optionally travel to the visited class, its superclass, its interfaces, and 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * its subclasses. 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class ClassHierarchyTraveler implements ClassVisitor 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitThisClass; 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitSuperClass; 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitInterfaces; 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final boolean visitSubclasses; 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ClassVisitor classVisitor; 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new ClassHierarchyTraveler. 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitThisClass specifies whether to visit the originally visited 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * classes. 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitSuperClass specifies whether to visit the super classes of 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * the visited classes. 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitInterfaces specifies whether to visit the interfaces of 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * the visited classes. 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param visitSubclasses specifies whether to visit the subclasses of 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * the visited classes. 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param classVisitor the <code>ClassVisitor</code> to 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * which visits will be delegated. 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public ClassHierarchyTraveler(boolean visitThisClass, 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitSuperClass, 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitInterfaces, 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean visitSubclasses, 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassVisitor classVisitor) 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitThisClass = visitThisClass; 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitSuperClass = visitSuperClass; 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitInterfaces = visitInterfaces; 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.visitSubclasses = visitSubclasses; 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.classVisitor = classVisitor; 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for ClassVisitor. 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramClass(ProgramClass programClass) 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programClass.hierarchyAccept(visitThisClass, 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperClass, 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaces, 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSubclasses, 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato classVisitor); 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitLibraryClass(LibraryClass libraryClass) 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato libraryClass.hierarchyAccept(visitThisClass, 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSuperClass, 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitInterfaces, 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato visitSubclasses, 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato classVisitor); 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 92