Experiments/Attic/Rook/Castle.Rook.Compiler/Parser/antlr/NoViableAltException.cs

   1 using System;
   2
   3 using AST                                       = antlr.collections.AST;
   4
   5 namespace antlr
   6 {
   7         /*ANTLR Translator Generator
   8         * Project led by Terence Parr at http://www.jGuru.com
   9         * Software rights: http://www.antlr.org/license.html
  10         *
  11         * $Id:$
  12         */
  13
  14         //
  15         // ANTLR C# Code Generator by Micheal Jordan
  16         //                            Kunle Odutola       : kunle UNDERSCORE odutola AT hotmail DOT com
  17         //                            Anthony Oguntimehin
  18         //
  19         // With many thanks to Eric V. Smith from the ANTLR list.
  20         //
  21
  22         [Serializable]
  23         public class NoViableAltException : RecognitionException
  24         {
  25                 public IToken token;
  26                 public AST node; // handles parsing and treeparsing
  27
  28                 public NoViableAltException(AST t) : base("NoViableAlt", "<AST>", - 1, - 1)
  29                 {
  30                         node = t;
  31                 }
  32
  33                 public NoViableAltException(IToken t, string fileName_) :
  34                                         base("NoViableAlt", fileName_, t.getLine(), t.getColumn())
  35                 {
  36                         token = t;
  37                 }
  38
  39                 /*
  40                 * Returns a clean error message (no line number/column information)
  41                 */
  42                 override public string Message
  43                 {
  44                         get
  45                         {
  46                                 if (token != null)
  47                                 {
  48                                         //return "unexpected token: " + token.getText();
  49                                         return "unexpected token: " + token.ToString();
  50                                 }
  51
  52                                 // must a tree parser error if token==null
  53                                 if ( (node==null) || (node==TreeParser.ASTNULL) )
  54                                 {
  55                                         return "unexpected end of subtree";
  56                                 }
  57                                 return "unexpected AST node: " + node.ToString();
  58                         }
  59                 }
  60         }
  61 }