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.obfuscate; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.attribute.*; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.attribute.visitor.AttributeVisitor; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.editor.ConstantPoolEditor; 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.util.SimplifiedVisitor; 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.visitor.ClassVisitor; 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This ClassVisitor changes the name stored in the source file attributes 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * and source dir attributes of the classes that it visits, if the 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * attributes are present. 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class SourceFileRenamer 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends SimplifiedVisitor 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimplements ClassVisitor, 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato AttributeVisitor 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final String newSourceFileAttribute; 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new SourceFileRenamer. 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param newSourceFileAttribute the new string to be put in the source file 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * attributes. 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public SourceFileRenamer(String newSourceFileAttribute) 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.newSourceFileAttribute = newSourceFileAttribute; 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for ClassVisitor. 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramClass(ProgramClass programClass) 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Only visit the class attributes. 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programClass.attributesAccept(this); 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for AttributeVisitor. 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitAnyAttribute(Clazz clazz, Attribute attribute) {} 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitSourceFileAttribute(Clazz clazz, SourceFileAttribute sourceFileAttribute) 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Fix the source file attribute. 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato sourceFileAttribute.u2sourceFileIndex = 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ConstantPoolEditor((ProgramClass)clazz).addUtf8Constant(newSourceFileAttribute); 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitSourceDirAttribute(Clazz clazz, SourceDirAttribute sourceDirAttribute) 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Fix the source file attribute. 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato sourceDirAttribute.u2sourceDirIndex = 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ConstantPoolEditor((ProgramClass)clazz).addUtf8Constant(newSourceFileAttribute); 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 85