NoViableAltException.cs :  » Inversion-of-Control-Dependency-Injection » Spring.net » Spring » Expressions » Parser » antlr » C# / CSharp Open Source

using System;
using Spring.Expressions.Parser.antlr.collections;
using ASTSpring.Expressions.Parser.antlr.collections.AST;

namespace Spring.Expressions.Parser.antlr{
  /*ANTLR Translator Generator
  * Project led by Terence Parr at http://www.jGuru.com
  * Software rights: http://www.antlr.org/license.html
  *
  * $Id:$
  */

  //
  // ANTLR C# Code Generator by Micheal Jordan
  //                            Kunle Odutola       : kunle UNDERSCORE odutola AT hotmail DOT com
  //                            Anthony Oguntimehin
  //
  // With many thanks to Eric V. Smith from the ANTLR list.
  //
  
  [Serializable]
  public class NoViableAltException : RecognitionException
  {
    public IToken token;
    public AST node; // handles parsing and treeparsing
    
    public NoViableAltException(AST t) : base("NoViableAlt", "<AST>", - 1, - 1)
    {
      node = t;
    }
    
    public NoViableAltException(IToken t, string fileName_) : 
          base("NoViableAlt", fileName_, t.getLine(), t.getColumn())
    {
      token = t;
    }
    
    /*
    * Returns a clean error message (no line number/column information)
    */
    override public string Message
    {
      get 
      {
        if (token != null)
        {
          //return "unexpected token: " + token.getText();
          return "unexpected token: " + token.ToString();
        }
      
        // must a tree parser error if token==null
        if ( (node==null) || (node==TreeParser.ASTNULL) )
        {
          return "unexpected end of subtree";
        }
        return "unexpected AST node: " + node.ToString();
      }
    }
  }
}