Home | History | Annotate | Download | only in value 
      1 /*
      2  * ProGuard -- shrinking, optimization, obfuscation, and preverification
      3  *             of Java bytecode.
      4  *
      5  * Copyright (c) 2002-2014 Eric Lafortune (eric (at) 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 /**
     24  * This LongValue represents a long value that is negated.
     25  *
     26  * @author Eric Lafortune
     27  */
     28 final class NegatedLongValue extends SpecificLongValue
     29 {
     30     private final LongValue longValue;
     31 
     32 
     33     /**
     34      * Creates a new negated long value of the given long value.
     35      */
     36     public NegatedLongValue(LongValue longValue)
     37     {
     38         this.longValue = longValue;
     39     }
     40 
     41 
     42     // Implementations of unary methods of LongValue.
     43 
     44     public LongValue negate()
     45     {
     46         return longValue;
     47     }
     48 
     49 
     50     // Implementations for Object.
     51 
     52     public boolean equals(Object object)
     53     {
     54         return this == object ||
     55                super.equals(object) &&
     56                this.longValue.equals(((NegatedLongValue)object).longValue);
     57     }
     58 
     59 
     60     public int hashCode()
     61     {
     62         return super.hashCode() ^
     63                longValue.hashCode();
     64     }
     65 
     66 
     67     public String toString()
     68     {
     69         return "-"+longValue;
     70     }
     71 }