1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver/* 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * [The "BSD licence"] 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2005-2008 Terence Parr 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Conversion to C#: 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Copyright (c) 2008 Sam Harwell, Pixel Mine, Inc. 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * All rights reserved. 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * Redistribution and use in source and binary forms, with or without 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * modification, are permitted provided that the following conditions 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * are met: 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 1. Redistributions of source code must retain the above copyright 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 2. Redistributions in binary form must reproduce the above copyright 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * notice, this list of conditions and the following disclaimer in the 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * documentation and/or other materials provided with the distribution. 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 3. The name of the author may not be used to endorse or promote products 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * derived from this software without specific prior written permission. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver */ 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruverusing System; 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvernamespace Antlr.Runtime.JavaExtensions 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static class ObjectExtensions 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#if DEBUG 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [Obsolete] 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static bool booleanValue( this bool value ) 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return value; 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver [Obsolete] 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static Type getClass( this object o ) 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return o.GetType(); 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#endif 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeXOR( int a, int b ) 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ a; 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ b; 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeXOR( int a, int b, int c ) 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ a; 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ b; 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ c; 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeXOR( int a, int b, int c, int d ) 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ a; 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ b; 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ c; 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ d; 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeXOR( params int[] a ) 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver foreach ( int i in a ) 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) ^ i; 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 86324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 87324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 88324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeAdd( int a, int b ) 89324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 90324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 91324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + a; 92324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + b; 93324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 94324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 95324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 96324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeAdd( int a, int b, int c ) 97324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 98324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 99324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + a; 100324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + b; 101324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + c; 102324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 103324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 104324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 105324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeAdd( int a, int b, int c, int d ) 106324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 107324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 108324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + a; 109324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + b; 110324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + c; 111324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + d; 112324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 113324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 114324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 115324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver public static int ShiftPrimeAdd( params int[] a ) 116324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver { 117324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver int hash = 23; 118324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver foreach ( int i in a ) 119324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver hash = ( ( hash << 5 ) * 37 ) + i; 120324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver return hash; 121324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 122324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver } 123324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 124