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.Attribute; 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.util.SimplifiedVisitor; 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.visitor.MemberVisitor; 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This ConstantVisitor adds all class members that it visits to the given 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * target class. 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratopublic class MemberAdder 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoextends SimplifiedVisitor 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimplements MemberVisitor 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato //* 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static final boolean DEBUG = false; 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /*/ 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static boolean DEBUG = true; 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato //*/ 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private static final Attribute[] EMPTY_ATTRIBUTES = new Attribute[0]; 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ProgramClass targetClass; 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// private final boolean addFields; 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ConstantAdder constantAdder; 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ClassEditor classEditor; 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ConstantPoolEditor constantPoolEditor; 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new MemberAdder that will copy methods into the given target 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * class. 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @param targetClass the class to which all visited class members will be 60b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * added. 61b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 62b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// * @param addFields specifies whether fields should be added, or fused 63b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// * with the present fields. 64b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public MemberAdder(ProgramClass targetClass)//), 65b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// boolean addFields) 66b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 67b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.targetClass = targetClass; 68b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// this.addFields = addFields; 69b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 70b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantAdder = new ConstantAdder(targetClass); 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato classEditor = new ClassEditor(targetClass); 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantPoolEditor = new ConstantPoolEditor(targetClass); 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for MemberVisitor. 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramField(ProgramClass programClass, ProgramField programField) 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String name = programField.getName(programClass); 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String descriptor = programField.getDescriptor(programClass); 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int accessFlags = programField.getAccessFlags(); 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Does the target class already have such a field? 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ProgramField targetField = (ProgramField)targetClass.findField(name, descriptor); 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (targetField != null) 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Is the field private or static? 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int targetAccessFlags = targetField.getAccessFlags(); 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if ((targetAccessFlags & 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (ClassConstants.INTERNAL_ACC_PRIVATE | 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassConstants.INTERNAL_ACC_STATIC)) != 0) 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: renaming field ["+targetClass+"."+targetField.getName(targetClass)+" "+targetField.getDescriptor(targetClass)+"]"); 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Rename the private or static field. 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetField.u2nameIndex = 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantPoolEditor.addUtf8Constant(newUniqueMemberName(name, targetClass.getName())); 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 103b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// else 104b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// { 105b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// // Keep the non-private and non-static field, but update its 106b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// // contents, in order to keep any references to it valid. 107b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// if (DEBUG) 108b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// { 109b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// System.out.println("MemberAdder: updating field ["+programClass+"."+programField.getName(programClass)+" "+programField.getDescriptor(programClass)+"] into ["+targetClass.getName()+"]"); 110b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// } 111b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// 112b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// // Combine the access flags. 113b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// targetField.u2accessFlags = accessFlags | targetAccessFlags; 114b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// 115b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// // Add and replace any attributes. 116b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// programField.attributesAccept(programClass, 117b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// new AttributeAdder(targetClass, 118b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// targetField, 119b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// true)); 120b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// 121b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// // Don't add a new field. 122b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// return; 123b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato// } 124b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 125b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 126b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 127b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 128b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: copying field ["+programClass+"."+programField.getName(programClass)+" "+programField.getDescriptor(programClass)+"] into ["+targetClass.getName()+"]"); 129b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 130b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 131b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Create a copy of the field. 132b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ProgramField newProgramField = 133b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ProgramField(accessFlags, 134b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantAdder.addConstant(programClass, programField.u2nameIndex), 135b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantAdder.addConstant(programClass, programField.u2descriptorIndex), 136b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 0, 137b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.u2attributesCount > 0 ? 138b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new Attribute[programField.u2attributesCount] : 139b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato EMPTY_ATTRIBUTES, 140b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.referencedClass); 141b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 142b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Link to its visitor info. 143b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newProgramField.setVisitorInfo(programField); 144b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 145b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Copy its attributes. 146b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programField.attributesAccept(programClass, 147b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new AttributeAdder(targetClass, 148b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newProgramField, 149b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato false)); 150b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 151b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Add the completed field. 152b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato classEditor.addField(newProgramField); 153b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 154b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 155b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 156b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) 157b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 158b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String name = programMethod.getName(programClass); 159b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato String descriptor = programMethod.getDescriptor(programClass); 160b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int accessFlags = programMethod.getAccessFlags(); 161b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 162b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Does the target class already have such a method? 163b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ProgramMethod targetMethod = (ProgramMethod)targetClass.findMethod(name, descriptor); 164b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (targetMethod != null) 165b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 166b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // is this source method abstract? 167b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if ((accessFlags & ClassConstants.INTERNAL_ACC_ABSTRACT) != 0) 168b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 169b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Keep the target method. 170b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 171b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 172b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: skipping abstract method ["+programClass.getName()+"."+programMethod.getName(programClass)+programMethod.getDescriptor(programClass)+"] into ["+targetClass.getName()+"]"); 173b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 174b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 175b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Don't add a new method. 176b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return; 177b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 178b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 179b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Is the target method abstract? 180b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int targetAccessFlags = targetMethod.getAccessFlags(); 181b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if ((targetAccessFlags & ClassConstants.INTERNAL_ACC_ABSTRACT) != 0) 182b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 183b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Keep the abstract method, but update its contents, in order 184b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // to keep any references to it valid. 185b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 186b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 187b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: updating method ["+programClass.getName()+"."+programMethod.getName(programClass)+programMethod.getDescriptor(programClass)+"] into ["+targetClass.getName()+"]"); 188b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 189b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 190b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Replace the access flags. 191b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetMethod.u2accessFlags = 192b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato accessFlags & ~ClassConstants.INTERNAL_ACC_FINAL; 193b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 194b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Add and replace the attributes. 195b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.attributesAccept(programClass, 196b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new AttributeAdder(targetClass, 197b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetMethod, 198b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato true)); 199b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 200b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Don't add a new method. 201b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return; 202b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 203b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 204b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 205b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 206b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: renaming method ["+targetClass.getName()+"."+targetMethod.getName(targetClass)+targetMethod.getDescriptor(targetClass)+"]"); 207b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 208b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 209b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Rename the private (non-abstract) or static method. 210b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato targetMethod.u2nameIndex = 211b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantPoolEditor.addUtf8Constant(newUniqueMemberName(name, descriptor)); 212b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 213b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 214b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato if (DEBUG) 215b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 216b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato System.out.println("MemberAdder: copying method ["+programClass.getName()+"."+programMethod.getName(programClass)+programMethod.getDescriptor(programClass)+"] into ["+targetClass.getName()+"]"); 217b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 218b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 219b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Create a copy of the method. 220b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ProgramMethod newProgramMethod = 221b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new ProgramMethod(accessFlags & ~ClassConstants.INTERNAL_ACC_FINAL, 222b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantAdder.addConstant(programClass, programMethod.u2nameIndex), 223b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato constantAdder.addConstant(programClass, programMethod.u2descriptorIndex), 224b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 0, 225b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.u2attributesCount > 0 ? 226b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new Attribute[programMethod.u2attributesCount] : 227b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato EMPTY_ATTRIBUTES, 228b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.referencedClasses != null ? 229b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato (Clazz[])programMethod.referencedClasses.clone() : 230b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato null); 231b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 232b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Link to its visitor info. 233b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newProgramMethod.setVisitorInfo(programMethod); 234b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 235b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Copy its attributes. 236b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato programMethod.attributesAccept(programClass, 237b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato new AttributeAdder(targetClass, 238b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato newProgramMethod, 239b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato false)); 240b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 241b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Add the completed method. 242b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato classEditor.addMethod(newProgramMethod); 243b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 244b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 245b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 246b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Small utility methods. 247b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 248b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 249b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Returns a unique class member name, based on the given name and descriptor. 250b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 251b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private String newUniqueMemberName(String name, String descriptor) 252b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 253b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return name.equals(ClassConstants.INTERNAL_METHOD_NAME_INIT) ? 254b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ClassConstants.INTERNAL_METHOD_NAME_INIT : 255b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato name + ClassConstants.SPECIAL_MEMBER_SEPARATOR + Long.toHexString(Math.abs((descriptor).hashCode())); 256b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 257b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato} 258