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/*
* [The "BSD licence"]
* Copyright (c) 2005-2008 Terence Parr
* All rights reserved.
*
* Conversion to C#:
* Copyright (c) 2008 Sam Harwell, Pixel Mine, Inc.
* 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.
*/
using System;
namespace Antlr.Runtime.JavaExtensions
{
public static class ObjectExtensions
{
#if DEBUG
[Obsolete]
public static bool booleanValue( this bool value )
{
return value;
}
[Obsolete]
public static Type getClass( this object o )
{
return o.GetType();
}
#endif
public static int ShiftPrimeXOR( int a, int b )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) ^ a;
hash = ( ( hash << 5 ) * 37 ) ^ b;
return hash;
}
public static int ShiftPrimeXOR( int a, int b, int c )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) ^ a;
hash = ( ( hash << 5 ) * 37 ) ^ b;
hash = ( ( hash << 5 ) * 37 ) ^ c;
return hash;
}
public static int ShiftPrimeXOR( int a, int b, int c, int d )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) ^ a;
hash = ( ( hash << 5 ) * 37 ) ^ b;
hash = ( ( hash << 5 ) * 37 ) ^ c;
hash = ( ( hash << 5 ) * 37 ) ^ d;
return hash;
}
public static int ShiftPrimeXOR( params int[] a )
{
int hash = 23;
foreach ( int i in a )
hash = ( ( hash << 5 ) * 37 ) ^ i;
return hash;
}
public static int ShiftPrimeAdd( int a, int b )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) + a;
hash = ( ( hash << 5 ) * 37 ) + b;
return hash;
}
public static int ShiftPrimeAdd( int a, int b, int c )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) + a;
hash = ( ( hash << 5 ) * 37 ) + b;
hash = ( ( hash << 5 ) * 37 ) + c;
return hash;
}
public static int ShiftPrimeAdd( int a, int b, int c, int d )
{
int hash = 23;
hash = ( ( hash << 5 ) * 37 ) + a;
hash = ( ( hash << 5 ) * 37 ) + b;
hash = ( ( hash << 5 ) * 37 ) + c;
hash = ( ( hash << 5 ) * 37 ) + d;
return hash;
}
public static int ShiftPrimeAdd( params int[] a )
{
int hash = 23;
foreach ( int i in a )
hash = ( ( hash << 5 ) * 37 ) + i;
return hash;
}
}
}
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