1 /* 2 * [The "BSD license"] 3 * Copyright (c) 2011 Terence Parr 4 * All rights reserved. 5 * 6 * Conversion to C#: 7 * Copyright (c) 2011 Sam Harwell, Pixel Mine, Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 namespace Antlr.Runtime 34 { 35 using System; 36 using System.Runtime.InteropServices; 37 38 [StructLayout( LayoutKind.Sequential, Pack = 2 )] 39 public struct SlimToken 40 : IToken 41 { 42 private short _type; 43 private short _channel; 44 private short _startIndex; 45 private short _stopIndex; 46 SlimTokenAntlr.Runtime.SlimToken47 public SlimToken(int type) 48 : this() 49 { 50 _type = (short)type; 51 } 52 53 #region IToken Members 54 55 string IToken.Text 56 { 57 get 58 { 59 return string.Empty; 60 } 61 set 62 { 63 } 64 } 65 66 public int Type 67 { 68 get 69 { 70 return _type; 71 } 72 set 73 { 74 _type = (short)value; 75 } 76 } 77 78 int IToken.Line 79 { 80 get 81 { 82 return 0; 83 } 84 set 85 { 86 } 87 } 88 89 int IToken.CharPositionInLine 90 { 91 get 92 { 93 return 0; 94 } 95 set 96 { 97 } 98 } 99 100 public int Channel 101 { 102 get 103 { 104 return _channel; 105 } 106 set 107 { 108 _channel = (short)value; 109 } 110 } 111 112 public int StartIndex 113 { 114 get 115 { 116 return _startIndex; 117 } 118 set 119 { 120 _startIndex = (short)value; 121 } 122 } 123 124 public int StopIndex 125 { 126 get 127 { 128 return _stopIndex; 129 } 130 set 131 { 132 _stopIndex = (short)value; 133 } 134 } 135 136 int IToken.TokenIndex 137 { 138 get 139 { 140 return 0; 141 } 142 set 143 { 144 } 145 } 146 147 ICharStream IToken.InputStream 148 { 149 get 150 { 151 return null; 152 } 153 set 154 { 155 } 156 } 157 158 #endregion 159 } 160 } 161