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      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 class represents a partially evaluated long value.
     25  *
     26  * @author Eric Lafortune
     27  */
     28 public class UnknownLongValue extends LongValue
     29 {
     30     // Basic unary methods.
     31 
     32     public LongValue negate()
     33     {
     34         return this;
     35     }
     36 
     37     public IntegerValue convertToInteger()
     38     {
     39         return ValueFactory.INTEGER_VALUE;
     40     }
     41 
     42     public FloatValue convertToFloat()
     43     {
     44         return ValueFactory.FLOAT_VALUE;
     45     }
     46 
     47     public DoubleValue convertToDouble()
     48     {
     49         return ValueFactory.DOUBLE_VALUE;
     50     }
     51 
     52 
     53     // Basic binary methods.
     54 
     55     public LongValue generalize(LongValue other)
     56     {
     57         return this;
     58     }
     59 
     60     public LongValue add(LongValue other)
     61     {
     62         return this;
     63     }
     64 
     65     public LongValue subtract(LongValue other)
     66     {
     67         return this;
     68     }
     69 
     70     public LongValue subtractFrom(LongValue other)
     71     {
     72         return this;
     73     }
     74 
     75     public LongValue multiply(LongValue other)
     76     throws ArithmeticException
     77     {
     78         return this;
     79     }
     80 
     81     public LongValue divide(LongValue other)
     82     throws ArithmeticException
     83     {
     84         return this;
     85     }
     86 
     87     public LongValue divideOf(LongValue other)
     88     throws ArithmeticException
     89     {
     90         return this;
     91     }
     92 
     93     public LongValue remainder(LongValue other)
     94     throws ArithmeticException
     95     {
     96         return this;
     97     }
     98 
     99     public LongValue remainderOf(LongValue other)
    100     throws ArithmeticException
    101     {
    102         return this;
    103     }
    104 
    105     public LongValue shiftLeft(IntegerValue other)
    106     {
    107         return this;
    108     }
    109 
    110     public LongValue shiftRight(IntegerValue other)
    111     {
    112         return this;
    113     }
    114 
    115     public LongValue unsignedShiftRight(IntegerValue other)
    116     {
    117         return this;
    118     }
    119 
    120     public LongValue and(LongValue other)
    121     {
    122         return this;
    123     }
    124 
    125     public LongValue or(LongValue other)
    126     {
    127         return this;
    128     }
    129 
    130     public LongValue xor(LongValue other)
    131     {
    132         return this;
    133     }
    134 
    135     public IntegerValue compare(LongValue other)
    136     {
    137         return ValueFactory.INTEGER_VALUE;
    138     }
    139 
    140 
    141     // Implementations for Object.
    142 
    143     public boolean equals(Object object)
    144     {
    145         return object != null &&
    146                this.getClass() == object.getClass();
    147     }
    148 
    149 
    150     public int hashCode()
    151     {
    152         return this.getClass().hashCode();
    153     }
    154 
    155 
    156     public String toString()
    157     {
    158         return "l";
    159     }
    160 }