| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2019 Guardsquare NV |
| * |
| * 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.attribute.*; |
| import proguard.classfile.attribute.visitor.*; |
| import proguard.classfile.constant.ClassConstant; |
| import proguard.classfile.constant.visitor.ConstantVisitor; |
| import proguard.classfile.util.*; |
| import proguard.classfile.visitor.*; |
| |
| |
| /** |
| * This <code>ClassVisitor</code> and <code>MemberVisitor</code> |
| * marks names of the classes and class members it visits. The marked names |
| * will remain unchanged in the obfuscation step. |
| * |
| * @see ClassObfuscator |
| * @see MemberObfuscator |
| * |
| * @author Eric Lafortune |
| */ |
| class NameMarker |
| extends SimplifiedVisitor |
| implements ClassVisitor, |
| MemberVisitor, |
| AttributeVisitor, |
| InnerClassesInfoVisitor, |
| ConstantVisitor |
| { |
| // Implementations for ClassVisitor. |
| |
| public void visitProgramClass(ProgramClass programClass) |
| { |
| keepClassName(programClass); |
| |
| // Make sure any outer class names are kept as well. |
| programClass.attributesAccept(this); |
| } |
| |
| |
| public void visitLibraryClass(LibraryClass libraryClass) |
| { |
| keepClassName(libraryClass); |
| } |
| |
| |
| // Implementations for MemberVisitor. |
| |
| public void visitProgramField(ProgramClass programClass, ProgramField programField) |
| { |
| keepFieldName(programClass, programField); |
| } |
| |
| |
| public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) |
| { |
| keepMethodName(programClass, programMethod); |
| } |
| |
| |
| public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) |
| { |
| keepFieldName(libraryClass, libraryField); |
| } |
| |
| |
| public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) |
| { |
| keepMethodName(libraryClass, libraryMethod); |
| } |
| |
| |
| // Implementations for AttributeVisitor. |
| |
| public void visitAnyAttribute(Clazz clazz, Attribute attribute) {} |
| |
| |
| public void visitInnerClassesAttribute(Clazz clazz, InnerClassesAttribute innerClassesAttribute) |
| { |
| // Make sure the outer class names are kept as well. |
| innerClassesAttribute.innerClassEntriesAccept(clazz, this); |
| } |
| |
| |
| // Implementations for InnerClassesInfoVisitor. |
| |
| public void visitInnerClassesInfo(Clazz clazz, InnerClassesInfo innerClassesInfo) |
| { |
| // Make sure the outer class name is kept as well. |
| int innerClassIndex = innerClassesInfo.u2innerClassIndex; |
| int outerClassIndex = innerClassesInfo.u2outerClassIndex; |
| if (innerClassIndex != 0 && |
| outerClassIndex != 0 && |
| clazz.getClassName(innerClassIndex).equals(clazz.getName())) |
| { |
| clazz.constantPoolEntryAccept(outerClassIndex, this); |
| } |
| } |
| |
| |
| // Implementations for ConstantVisitor. |
| |
| public void visitClassConstant(Clazz clazz, ClassConstant classConstant) |
| { |
| // Make sure the outer class name is kept as well. |
| classConstant.referencedClassAccept(this); |
| } |
| |
| |
| // Small utility method. |
| |
| /** |
| * Ensures the name of the given class name will be kept. |
| */ |
| public void keepClassName(Clazz clazz) |
| { |
| ClassObfuscator.setNewClassName(clazz, |
| clazz.getName()); |
| } |
| |
| |
| /** |
| * Ensures the name of the given field name will be kept. |
| */ |
| private void keepFieldName(Clazz clazz, Field field) |
| { |
| MemberObfuscator.setFixedNewMemberName(field, |
| field.getName(clazz)); |
| } |
| |
| |
| /** |
| * Ensures the name of the given method name will be kept. |
| */ |
| private void keepMethodName(Clazz clazz, Method method) |
| { |
| String name = method.getName(clazz); |
| |
| if (!ClassUtil.isInitializer(name)) |
| { |
| MemberObfuscator.setFixedNewMemberName(method, name); |
| } |
| } |
| } |