class/corlib/System.Security.Principal/IdentityReference.cs

   1 //
   2 // System.Security.Policy.IdentityReference.cs
   3 //
   4 // Author:
   5 //      Sebastien Pouliot  <sebastien@ximian.com>
   6 //
   7 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29
  30 using System.Globalization;
  31 using System.Runtime.InteropServices;
  32
  33 namespace System.Security.Principal {
  34
  35         [ComVisible (false)]
  36         public abstract class IdentityReference {
  37
  38                 // yep, this means it cannot be inherited outside corlib
  39                 // not sure if this is "by design" reported as FDBK30180
  40                 internal IdentityReference ()
  41                 {
  42                 }
  43
  44
  45                 public abstract string Value {
  46                         get;
  47                 }
  48
  49
  50                 public abstract override bool Equals (object o);
  51
  52                 public abstract override int GetHashCode ();
  53
  54                 public abstract bool IsValidTargetType (Type targetType);
  55
  56                 public abstract override string ToString ();
  57
  58                 public abstract IdentityReference Translate (Type targetType);
  59
  60
  61                 public static bool operator== (IdentityReference left, IdentityReference right)
  62                 {
  63                         if (((object)left) == null)
  64                                 return (((object)right) == null);
  65                         if (((object)right) == null)
  66                                 return false;
  67                         return (left.Value == right.Value);
  68                 }
  69
  70                 public static bool operator!= (IdentityReference left, IdentityReference right)
  71                 {
  72                         if (((object)left) == null)
  73                                 return (((object)right) != null);
  74                         if (((object)right) == null)
  75                                 return true;
  76                         return (left.Value != right.Value);
  77                 }
  78         }
  79 }
  80