mcs/class/corlib/System.Reflection.Emit/SignatureToken.cs

   1 // SignatureToken.cs
   2 //
   3 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   4
   5 //
   6 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27
  28
  29 namespace System.Reflection.Emit {
  30
  31
  32         /// <summary>
  33         ///  Represents the Token returned by the metadata to represent a Signature.
  34         /// </summary>
  35         [Serializable]
  36         public struct SignatureToken {
  37
  38                 internal int tokValue;
  39
  40                 public static readonly SignatureToken Empty;
  41
  42
  43                 static SignatureToken ()
  44                 {
  45                         Empty = new SignatureToken ();
  46                 }
  47
  48
  49                 internal SignatureToken (int val)
  50                 {
  51                         tokValue = val;
  52                 }
  53
  54
  55
  56                 /// <summary>
  57                 /// </summary>
  58                 public override bool Equals (object obj)
  59                 {
  60                         bool res = obj is SignatureToken;
  61
  62                         if (res) {
  63                                 SignatureToken that = (SignatureToken) obj;
  64                                 res = (this.tokValue == that.tokValue);
  65                         }
  66
  67                         return res;
  68                 }
  69
  70
  71                 /// <summary>
  72                 ///  Tests whether the given object is an instance of
  73                 ///  SignatureToken and has the same token value.
  74                 /// </summary>
  75                 public override int GetHashCode ()
  76                 {
  77                         return tokValue;
  78                 }
  79
  80
  81                 /// <summary>
  82                 ///  Returns the metadata token for this Signature.
  83                 /// </summary>
  84                 public int Token {
  85                         get {
  86                                 return tokValue;
  87                         }
  88                 }
  89
  90         }
  91
  92 }
  93