mcs/class/corlib/System/RuntimeTypeHandle.cs

   1 //
   2 // System.RuntimeTypeHandle.cs
   3 //
   4 // Authors:
   5 //   Miguel de Icaza (miguel@ximian.com)
   6 //   Andreas Nahr (ClassDevelopment@A-SoftTech.com)
   7 //
   8 // (C) Ximian, Inc.  http://www.ximian.com
   9 //
  10
  11 //
  12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  13 //
  14 // Permission is hereby granted, free of charge, to any person obtaining
  15 // a copy of this software and associated documentation files (the
  16 // "Software"), to deal in the Software without restriction, including
  17 // without limitation the rights to use, copy, modify, merge, publish,
  18 // distribute, sublicense, and/or sell copies of the Software, and to
  19 // permit persons to whom the Software is furnished to do so, subject to
  20 // the following conditions:
  21 //
  22 // The above copyright notice and this permission notice shall be
  23 // included in all copies or substantial portions of the Software.
  24 //
  25 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  26 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  27 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  28 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  29 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  30 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  31 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  32 //
  33
  34 using System.Runtime.Serialization;
  35
  36 namespace System
  37 {
  38         [MonoTODO ("Serialization needs tests")]
  39         [Serializable]
  40         public struct RuntimeTypeHandle : ISerializable
  41         {
  42                 IntPtr value;
  43
  44                 internal RuntimeTypeHandle (IntPtr val)
  45                 {
  46                         value = val;
  47                 }
  48
  49                 RuntimeTypeHandle (SerializationInfo info, StreamingContext context)
  50                 {
  51                         if (info == null)
  52                                 throw new ArgumentNullException ("info");
  53
  54                         MonoType mt = ((MonoType) info.GetValue ("TypeObj", typeof (MonoType)));
  55                         value = mt.TypeHandle.Value;
  56                         if (value == IntPtr.Zero)
  57                                 throw new SerializationException (Locale.GetText ("Insufficient state."));
  58                 }
  59
  60                 public IntPtr Value {
  61                         get {
  62                                 return value;
  63                         }
  64                 }
  65
  66                 public void GetObjectData (SerializationInfo info, StreamingContext context)
  67                 {
  68                         if (info == null)
  69                                 throw new ArgumentNullException ("info");
  70
  71                         info.AddValue ("TypeObj", Type.GetTypeHandle (this), typeof (MonoType));
  72                 }
  73
  74
  75                 public override bool Equals (object obj)
  76                 {
  77                         if (obj == null || GetType () != obj.GetType ())
  78                                 return false;
  79
  80                         return value == ((RuntimeTypeHandle)obj).Value;
  81                 }
  82
  83                 public bool Equals (RuntimeTypeHandle handle)
  84                 {
  85                         return value == handle.Value;
  86                 }
  87
  88                 public override int GetHashCode ()
  89                 {
  90                         return value.GetHashCode ();
  91                 }
  92
  93 #if NET_2_0
  94                 [CLSCompliant (false)]
  95                 public ModuleHandle GetModuleHandle () {
  96                         return Type.GetTypeFromHandle (this).Module.ModuleHandle;
  97                 }
  98 #endif
  99         }
 100 }