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124 lines
4.0 KiB
124 lines
4.0 KiB
/*
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* [The "BSD licence"]
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* Copyright (c) 2005-2008 Terence Parr
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* All rights reserved.
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*
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* Conversion to C#:
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* Copyright (c) 2008 Sam Harwell, Pixel Mine, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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namespace Antlr.Runtime.JavaExtensions
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{
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public static class ObjectExtensions
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{
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#if DEBUG
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[Obsolete]
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public static bool booleanValue( this bool value )
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{
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return value;
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}
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[Obsolete]
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public static Type getClass( this object o )
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{
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return o.GetType();
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}
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#endif
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public static int ShiftPrimeXOR( int a, int b )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) ^ a;
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hash = ( ( hash << 5 ) * 37 ) ^ b;
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return hash;
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}
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public static int ShiftPrimeXOR( int a, int b, int c )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) ^ a;
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hash = ( ( hash << 5 ) * 37 ) ^ b;
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hash = ( ( hash << 5 ) * 37 ) ^ c;
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return hash;
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}
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public static int ShiftPrimeXOR( int a, int b, int c, int d )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) ^ a;
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hash = ( ( hash << 5 ) * 37 ) ^ b;
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hash = ( ( hash << 5 ) * 37 ) ^ c;
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hash = ( ( hash << 5 ) * 37 ) ^ d;
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return hash;
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}
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public static int ShiftPrimeXOR( params int[] a )
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{
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int hash = 23;
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foreach ( int i in a )
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hash = ( ( hash << 5 ) * 37 ) ^ i;
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return hash;
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}
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public static int ShiftPrimeAdd( int a, int b )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) + a;
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hash = ( ( hash << 5 ) * 37 ) + b;
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return hash;
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}
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public static int ShiftPrimeAdd( int a, int b, int c )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) + a;
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hash = ( ( hash << 5 ) * 37 ) + b;
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hash = ( ( hash << 5 ) * 37 ) + c;
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return hash;
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}
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public static int ShiftPrimeAdd( int a, int b, int c, int d )
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{
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int hash = 23;
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hash = ( ( hash << 5 ) * 37 ) + a;
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hash = ( ( hash << 5 ) * 37 ) + b;
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hash = ( ( hash << 5 ) * 37 ) + c;
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hash = ( ( hash << 5 ) * 37 ) + d;
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return hash;
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}
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public static int ShiftPrimeAdd( params int[] a )
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{
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int hash = 23;
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foreach ( int i in a )
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hash = ( ( hash << 5 ) * 37 ) + i;
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return hash;
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}
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}
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}
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