proguard.evaluation.value.ParticularFloatValue Maven / Gradle / Ivy
/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2018 GuardSquare NV
*
* 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)
{
// Careful: -0.0 + 0.0 == 0.0
//return value == 0.0 ? other : other.add(this);
return other.add(this);
}
public FloatValue subtract(FloatValue other)
{
// Careful: -0.0 + 0.0 == 0.0
//return value == 0.0 ? other.negate() : other.subtractFrom(this);
return other.subtractFrom(this);
}
public FloatValue subtractFrom(FloatValue other)
{
// Careful: -0.0 + 0.0 == 0.0
//return value == 0.0 ? other : other.subtract(this);
return 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)
{
// Also handle NaN and Infinity.
return Float.floatToRawIntBits(this.value) ==
Float.floatToRawIntBits(other.value) ?
this : BasicValueFactory.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 ? ParticularValueFactory.INTEGER_VALUE_M1 :
this.value == other.value ? ParticularValueFactory.INTEGER_VALUE_0 :
ParticularValueFactory.INTEGER_VALUE_1;
}
// Implementations for Value.
public boolean isParticular()
{
return true;
}
// Implementations for Object.
public boolean equals(Object object)
{
// Also handle NaN and Infinity.
return super.equals(object) &&
Float.floatToIntBits(this.value) ==
Float.floatToIntBits(((ParticularFloatValue)object).value);
}
public int hashCode()
{
return super.hashCode() ^
Float.floatToIntBits(value);
}
public String toString()
{
return value+"f";
}
}
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