1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21 package proguard.evaluation.value; 22 23 import proguard.classfile.*; 24 import proguard.classfile.util.ClassUtil; 25 26 /** 27 * This class provides methods to create and reuse IntegerValue objects. 28 * 29 * @author Eric Lafortune 30 */ 31 public class IdentifiedValueFactory 32 extends SpecificValueFactory 33 { 34 private int integerID; 35 private int longID; 36 private int floatID; 37 private int doubleID; 38 private int referenceID; 39 40 41 // Implementations for ValueFactory. 42 createIntegerValue()43 public IntegerValue createIntegerValue() 44 { 45 return new IdentifiedIntegerValue(this, integerID++); 46 } 47 48 createLongValue()49 public LongValue createLongValue() 50 { 51 return new IdentifiedLongValue(this, longID++); 52 } 53 54 createFloatValue()55 public FloatValue createFloatValue() 56 { 57 return new IdentifiedFloatValue(this, floatID++); 58 } 59 60 createDoubleValue()61 public DoubleValue createDoubleValue() 62 { 63 return new IdentifiedDoubleValue(this, doubleID++); 64 } 65 66 createReferenceValue(String type, Clazz referencedClass, boolean mayBeNull)67 public ReferenceValue createReferenceValue(String type, 68 Clazz referencedClass, 69 boolean mayBeNull) 70 { 71 return type == null ? 72 REFERENCE_VALUE_NULL : 73 new IdentifiedReferenceValue(type, referencedClass, mayBeNull, this, referenceID++); 74 } 75 }