1b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/* 2b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * ProGuard -- shrinking, optimization, obfuscation, and preverification 3b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * of Java bytecode. 4b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 5b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang * Copyright (c) 2002-2013 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.evaluation.value; 22b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 23b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratoimport proguard.classfile.Clazz; 24b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 25b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato/** 26b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * This LongValue represents a reference value that is identified by a unique ID. 27b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * 28b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * @author Eric Lafortune 29b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 30b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onoratofinal class IdentifiedReferenceValue extends ReferenceValue 31b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato{ 32b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final ValueFactory valuefactory; 33b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato private final int id; 34b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 35b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 36b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato /** 37b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato * Creates a new long value with the given ID. 38b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato */ 39b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public IdentifiedReferenceValue(String type, 40b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato Clazz referencedClass, 41b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato boolean mayBeNull, 42b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato ValueFactory valuefactory, 43b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato int id) 44b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 45b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato super(type, referencedClass, mayBeNull); 46b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 47b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.valuefactory = valuefactory; 48b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.id = id; 49b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 50b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 51b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 52b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for ReferenceValue. 53b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 54b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int equal(ReferenceValue other) 55b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 56b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return this.equals(other) ? ALWAYS : MAYBE; 57b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 58b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 59b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 60b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang // Implementations of binary methods of ReferenceValue. 61b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 62b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang public ReferenceValue generalize(ReferenceValue other) 63b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang { 64b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang // Remove the ID if both values don't share the same ID. 65b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang return this.equals(other) ? 66b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang this : 67b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang new ReferenceValue(type, referencedClass, mayBeNull).generalize(other); 68b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang } 69b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 70b9cc48a43ed984587c939d02fba5316bf5c0df6eYing Wang 71b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for Value. 72b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 73b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public boolean isSpecific() 74b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 75b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return true; 76b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 77b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 78b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 79b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato // Implementations for Object. 80b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 81b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public boolean equals(Object object) 82b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 83b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return this == object || 84b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato super.equals(object) && 85b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.valuefactory.equals(((IdentifiedReferenceValue)object).valuefactory) && 86b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato this.id == ((IdentifiedReferenceValue)object).id; 87b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 88b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 89b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 90b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public int hashCode() 91b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 92b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return super.hashCode() ^ 93b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato valuefactory.hashCode() ^ 94b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato id; 95b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 96b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 97b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato 98b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato public String toString() 99b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato { 100b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato return super.toString()+'#'+id; 101b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato } 102b72c5c2e5482cf10117b2b25f642f7616b2326c3Joe Onorato}