| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) |
| * |
| * 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.classfile.editor; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.attribute.*; |
| import proguard.classfile.attribute.visitor.AttributeVisitor; |
| import proguard.classfile.util.SimplifiedVisitor; |
| import proguard.classfile.visitor.*; |
| |
| import java.util.*; |
| |
| /** |
| * This ClassVisitor sorts the attributes of the classes that it visits. |
| * The sorting order is based on the types of the attributes. |
| * |
| * @author Eric Lafortune |
| */ |
| public class AttributeSorter |
| extends SimplifiedVisitor |
| implements ClassVisitor, MemberVisitor, AttributeVisitor, Comparator |
| { |
| // Implementations for ClassVisitor. |
| |
| public void visitProgramClass(ProgramClass programClass) |
| { |
| // Sort the attributes. |
| Arrays.sort(programClass.attributes, 0, programClass.u2attributesCount, this); |
| |
| // Sort the attributes of the class members. |
| programClass.fieldsAccept(this); |
| programClass.methodsAccept(this); |
| } |
| |
| |
| // Implementations for MemberVisitor. |
| |
| public void visitProgramMember(ProgramClass programClass, ProgramMember programMember) |
| { |
| // Sort the attributes. |
| Arrays.sort(programMember.attributes, 0, programMember.u2attributesCount, this); |
| |
| // Sort the attributes of the attributes. |
| programMember.attributesAccept(programClass, this); |
| } |
| |
| |
| // Implementations for AttributeVisitor. |
| |
| public void visitAnyAttribute(Clazz clazz, Attribute attribute) {} |
| |
| |
| public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute) |
| { |
| // Sort the attributes. |
| Arrays.sort(codeAttribute.attributes, 0, codeAttribute.u2attributesCount, this); |
| } |
| |
| |
| // Implementations for Comparator. |
| |
| public int compare(Object object1, Object object2) |
| { |
| Attribute attribute1 = (Attribute)object1; |
| Attribute attribute2 = (Attribute)object2; |
| |
| return attribute1.u2attributeNameIndex < attribute2.u2attributeNameIndex ? -1 : |
| attribute1.u2attributeNameIndex > attribute2.u2attributeNameIndex ? 1 : |
| 0; |
| } |
| } |