aboutsummaryrefslogtreecommitdiffstats
path: root/src/proguard/evaluation/value/ParticularFloatValue.java
blob: 59e4357dce640d42870b9225b71379671a6fb9b4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
package proguard.evaluation.value;

/**
 * This FloatValue represents a particular float value.
 *
 * @author Eric Lafortune
 */
final class ParticularFloatValue extends SpecificFloatValue
{
    private final float value;


    /**
     * Creates a new particular float value.
     */
    public ParticularFloatValue(float value)
    {
        this.value = value;
    }


    // Implementations for FloatValue.

    public float value()
    {
        return value;
    }


    // Implementations of unary methods of FloatValue.

    public FloatValue negate()
    {
        return new ParticularFloatValue(-value);
    }

    public IntegerValue convertToInteger()
    {
        return new ParticularIntegerValue((int)value);
    }

    public LongValue convertToLong()
    {
        return new ParticularLongValue((long)value);
    }

    public DoubleValue convertToDouble()
    {
        return new ParticularDoubleValue((float)value);
    }


    // Implementations of binary methods of FloatValue.

    public FloatValue generalize(FloatValue other)
    {
        return other.generalize(this);
    }

    public FloatValue add(FloatValue other)
    {
        return value == 0.0 ? other : other.add(this);
    }

    public FloatValue subtract(FloatValue other)
    {
        return value == 0.0 ? other.negate() : other.subtractFrom(this);
    }

    public FloatValue subtractFrom(FloatValue other)
    {
        return value == 0.0 ? other : other.subtract(this);
    }

    public FloatValue multiply(FloatValue other)
    {
        return other.multiply(this);
    }

    public FloatValue divide(FloatValue other)
    {
        return other.divideOf(this);
    }

    public FloatValue divideOf(FloatValue other)
    {
        return other.divide(this);
    }

    public FloatValue remainder(FloatValue other)
    {
        return other.remainderOf(this);
    }

    public FloatValue remainderOf(FloatValue other)
    {
        return other.remainder(this);
    }

    public IntegerValue compare(FloatValue other)
    {
        return other.compareReverse(this);
    }


    // Implementations of binary FloatValue methods with ParticularFloatValue
    // arguments.

    public FloatValue generalize(ParticularFloatValue other)
    {
        return this.value == other.value ? this : ValueFactory.FLOAT_VALUE;
    }

    public FloatValue add(ParticularFloatValue other)
    {
        return new ParticularFloatValue(this.value + other.value);
    }

    public FloatValue subtract(ParticularFloatValue other)
    {
        return new ParticularFloatValue(this.value - other.value);
    }

    public FloatValue subtractFrom(ParticularFloatValue other)
    {
        return new ParticularFloatValue(other.value - this.value);
    }

    public FloatValue multiply(ParticularFloatValue other)
    {
        return new ParticularFloatValue(this.value * other.value);
    }

    public FloatValue divide(ParticularFloatValue other)
    {
        return new ParticularFloatValue(this.value / other.value);
    }

    public FloatValue divideOf(ParticularFloatValue other)
    {
        return new ParticularFloatValue(other.value / this.value);
    }

    public FloatValue remainder(ParticularFloatValue other)
    {
        return new ParticularFloatValue(this.value % other.value);
    }

    public FloatValue remainderOf(ParticularFloatValue other)
    {
        return new ParticularFloatValue(other.value % this.value);
    }

    public IntegerValue compare(ParticularFloatValue other)
    {
        return this.value <  other.value ? SpecificValueFactory.INTEGER_VALUE_M1 :
               this.value == other.value ? SpecificValueFactory.INTEGER_VALUE_0  :
                                           SpecificValueFactory.INTEGER_VALUE_1;
    }


    // Implementations for Value.

    public boolean isParticular()
    {
        return true;
    }


    // Implementations for Object.

    public boolean equals(Object object)
    {
        return super.equals(object) &&
               this.value == ((ParticularFloatValue)object).value;
    }


    public int hashCode()
    {
        return super.hashCode() ^
               Float.floatToIntBits(value);
    }


    public String toString()
    {
        return value+"f";
    }
}