| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.obfuscate; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.constant.ClassConstant; |
| import proguard.classfile.constant.visitor.ConstantVisitor; |
| import proguard.classfile.editor.ConstantPoolEditor; |
| import proguard.classfile.util.SimplifiedVisitor; |
| import proguard.classfile.visitor.*; |
| |
| /** |
| * This <code>ClassVisitor</code> renames the class names and class member |
| * names of the classes it visits, using names previously determined by the |
| * obfuscator. |
| * |
| * @see ClassObfuscator |
| * @see MemberObfuscator |
| * |
| * @author Eric Lafortune |
| */ |
| public class ClassRenamer |
| extends SimplifiedVisitor |
| implements ClassVisitor, |
| MemberVisitor, |
| ConstantVisitor |
| { |
| // Implementations for ClassVisitor. |
| |
| public void visitProgramClass(ProgramClass programClass) |
| { |
| // Rename this class. |
| programClass.thisClassConstantAccept(this); |
| |
| // Rename the class members. |
| programClass.fieldsAccept(this); |
| programClass.methodsAccept(this); |
| } |
| |
| |
| public void visitLibraryClass(LibraryClass libraryClass) |
| { |
| libraryClass.thisClassName = ClassObfuscator.newClassName(libraryClass); |
| |
| // Rename the class members. |
| libraryClass.fieldsAccept(this); |
| libraryClass.methodsAccept(this); |
| } |
| |
| |
| // Implementations for MemberVisitor. |
| |
| public void visitProgramMember(ProgramClass programClass, |
| ProgramMember programMember) |
| { |
| // Has the class member name changed? |
| String name = programMember.getName(programClass); |
| String newName = MemberObfuscator.newMemberName(programMember); |
| if (newName != null && |
| !newName.equals(name)) |
| { |
| programMember.u2nameIndex = |
| new ConstantPoolEditor(programClass).addUtf8Constant(newName); |
| } |
| } |
| |
| public void visitLibraryMember(LibraryClass libraryClass, |
| LibraryMember libraryMember) |
| { |
| String newName = MemberObfuscator.newMemberName(libraryMember); |
| if (newName != null) |
| { |
| libraryMember.name = newName; |
| } |
| } |
| |
| |
| // Implementations for ConstantVisitor. |
| |
| public void visitClassConstant(Clazz clazz, ClassConstant classConstant) |
| { |
| // Update the Class entry if required. |
| String newName = ClassObfuscator.newClassName(clazz); |
| if (newName != null) |
| { |
| // Refer to a new Utf8 entry. |
| classConstant.u2nameIndex = |
| new ConstantPoolEditor((ProgramClass)clazz).addUtf8Constant(newName); |
| } |
| } |
| } |