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      1 /*
      2  * [The "BSD licence"]
      3  * Copyright (c) 2005-2008 Terence Parr
      4  * All rights reserved.
      5  *
      6  * Conversion to C#:
      7  * Copyright (c) 2008-2009 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.Collections.Generic;
     36     using Exception = System.Exception;
     37     using SerializationInfo = System.Runtime.Serialization.SerializationInfo;
     38     using StreamingContext = System.Runtime.Serialization.StreamingContext;
     39 
     40     /** <summary>An extra token while parsing a TokenStream</summary> */
     41     [System.Serializable]
     42     public class UnwantedTokenException : MismatchedTokenException
     43     {
     44         public UnwantedTokenException()
     45         {
     46         }
     47 
     48         public UnwantedTokenException(string message)
     49             : base(message)
     50         {
     51         }
     52 
     53         public UnwantedTokenException(string message, Exception innerException)
     54             : base(message, innerException)
     55         {
     56         }
     57 
     58         public UnwantedTokenException(int expecting, IIntStream input)
     59             : base(expecting, input)
     60         {
     61         }
     62 
     63         public UnwantedTokenException(int expecting, IIntStream input, IList<string> tokenNames)
     64             : base(expecting, input, tokenNames)
     65         {
     66         }
     67 
     68         public UnwantedTokenException(string message, int expecting, IIntStream input, IList<string> tokenNames)
     69             : base(message, expecting, input, tokenNames)
     70         {
     71         }
     72 
     73         public UnwantedTokenException(string message, int expecting, IIntStream input, IList<string> tokenNames, Exception innerException)
     74             : base(message, expecting, input, tokenNames, innerException)
     75         {
     76         }
     77 
     78         protected UnwantedTokenException(SerializationInfo info, StreamingContext context)
     79             : base(info, context)
     80         {
     81         }
     82 
     83         public virtual IToken UnexpectedToken
     84         {
     85             get
     86             {
     87                 return Token;
     88             }
     89         }
     90 
     91         public override string ToString()
     92         {
     93             //int unexpectedType = getUnexpectedType();
     94             //string unexpected = ( tokenNames != null && unexpectedType >= 0 && unexpectedType < tokenNames.Length ) ? tokenNames[unexpectedType] : unexpectedType.ToString();
     95             string expected = (TokenNames != null && Expecting >= 0 && Expecting < TokenNames.Count) ? TokenNames[Expecting] : Expecting.ToString();
     96 
     97             string exp = ", expected " + expected;
     98             if (Expecting == TokenTypes.Invalid)
     99             {
    100                 exp = "";
    101             }
    102             if (Token == null)
    103             {
    104                 return "UnwantedTokenException(found=" + null + exp + ")";
    105             }
    106             return "UnwantedTokenException(found=" + Token.Text + exp + ")";
    107         }
    108     }
    109 }
    110