1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Copyright (c) 2002-2009 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.editor; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.*; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.attribute.*; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.attribute.visitor.AttributeVisitor; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.util.SimplifiedVisitor; 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This AttributeVisitor resets it CodeAttributeEditor whenever it visits a 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * code attribute. 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class CodeAttributeEditorResetter 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends SimplifiedVisitor 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimplements AttributeVisitor 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final CodeAttributeEditor codeAttributeEditor; 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new CodeAttributeEditorResetter. 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param codeAttributeEditor the code attribute editor that will be reset. 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public CodeAttributeEditorResetter(CodeAttributeEditor codeAttributeEditor) 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.codeAttributeEditor = codeAttributeEditor; 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for AttributeVisitor. 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitAnyAttribute(Clazz clazz, Attribute attribute) {} 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute) 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato codeAttributeEditor.reset(codeAttribute.u4codeLength); 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 61