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 #if MONO_FEATURE_SRE
  29 using System.Runtime.InteropServices;
  30
  31 namespace System.Reflection.Emit {
  32
  33
  34         /// <summary>
  35         ///  Represents the Token returned by the metadata to represent a Signature.
  36         /// </summary>
  37         [ComVisible (true)]
  38         public struct SignatureToken {
  39
  40                 internal int tokValue;
  41
  42                 public static readonly SignatureToken Empty = new SignatureToken ();
  43
  44                 internal SignatureToken (int val)
  45                 {
  46                         tokValue = val;
  47                 }
  48
  49                 /// <summary>
  50                 /// </summary>
  51                 public override bool Equals (object obj)
  52                 {
  53                         bool res = obj is SignatureToken;
  54
  55                         if (res) {
  56                                 SignatureToken that = (SignatureToken) obj;
  57                                 res = (this.tokValue == that.tokValue);
  58                         }
  59
  60                         return res;
  61                 }
  62
  63                 public bool Equals (SignatureToken obj)
  64                 {
  65                         return (this.tokValue == obj.tokValue);
  66                 }
  67
  68                 public static bool operator == (SignatureToken a, SignatureToken b)
  69                 {
  70                         return Equals (a, b);
  71                 }
  72
  73                 public static bool operator != (SignatureToken a, SignatureToken b)
  74                 {
  75                         return !Equals (a, b);
  76                 }
  77
  78                 /// <summary>
  79                 ///  Tests whether the given object is an instance of
  80                 ///  SignatureToken and has the same token value.
  81                 /// </summary>
  82                 public override int GetHashCode ()
  83                 {
  84                         return tokValue;
  85                 }
  86
  87
  88                 /// <summary>
  89                 ///  Returns the metadata token for this Signature.
  90                 /// </summary>
  91                 public int Token {
  92                         get {
  93                                 return tokValue;
  94                         }
  95                 }
  96
  97         }
  98
  99 }
 100
 101 #endif