/*
* [The "BSD licence"]
* Copyright (c) 2010 Ben Gruver (JesusFreke)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jf.dexlib.EncodedValue;
import org.jf.dexlib.Util.AnnotatedOutput;
public class BooleanEncodedValue extends EncodedValue {
/**
* The dupliton values
*/
public static final BooleanEncodedValue TrueValue = new BooleanEncodedValue(true);
public static final BooleanEncodedValue FalseValue = new BooleanEncodedValue(false);
public final boolean value;
/**
* Constructs a new <code>BooleanEncodedValue</code> with the given value
* @param value The value
*/
private BooleanEncodedValue(boolean value) {
this.value = value;
}
/**
* Gets the <code>BooleanEncodedValue</code> for the given valueArg value. The high 3 bits of the first byte should
* be passed as the valueArg parameter
* @param valueArg The high 3 bits of the first byte of this encoded value
* @return the <code>BooleanEncodedValue</code> for the given valueArg value
*/
protected static BooleanEncodedValue getBooleanEncodedValue(byte valueArg) {
if (valueArg == 0) {
return FalseValue;
} else if (valueArg == 1) {
return TrueValue;
}
throw new RuntimeException("valueArg must be either 0 or 1");
}
/**
* Gets the <code>BooleanEncodedValue</code> for the given boolean value
* @param value the boolean value
* @return the <code>BooleanEncodedValue</code> for the given boolean value
*/
public static BooleanEncodedValue getBooleanEncodedValue(boolean value) {
if (value) {
return TrueValue;
}
return FalseValue;
}
/** {@inheritDoc} */
public void writeValue(AnnotatedOutput out) {
if (out.annotates()) {
out.annotate("value_type=" + ValueType.VALUE_BOOLEAN.name() + ",value=" + Boolean.toString(value));
}
out.writeByte(ValueType.VALUE_BOOLEAN.value | ((value?1:0) << 5));
}
/** {@inheritDoc} */
public int placeValue(int offset) {
return offset + 1;
}
/** {@inheritDoc} */
protected int compareValue(EncodedValue o) {
BooleanEncodedValue other = (BooleanEncodedValue)o;
if (value == other.value)
return 0;
if (value)
return 1;
return -1;
}
/** {@inheritDoc} */
public ValueType getValueType() {
return ValueType.VALUE_BOOLEAN;
}
@Override
public int hashCode() {
return value?1:0;
}
}