mcs/class/corlib/System/RuntimeFieldHandle.cs

   1 //
   2 // System.RuntimeFieldHandle.cs
   3 //
   4 // Author:
   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.Reflection;
  35 using System.Runtime.Serialization;
  36
  37 namespace System
  38 {
  39         [MonoTODO ("Serialization needs tests")]
  40         [Serializable]
  41         public struct RuntimeFieldHandle : ISerializable
  42         {
  43                 IntPtr value;
  44
  45                 internal RuntimeFieldHandle (IntPtr v)
  46                 {
  47                         value = v;
  48                 }
  49
  50                 RuntimeFieldHandle (SerializationInfo info, StreamingContext context)
  51                 {
  52                         if (info == null)
  53                                 throw new ArgumentNullException ("info");
  54
  55                         MonoField mf = ((MonoField) info.GetValue ("FieldObj", typeof (MonoField)));
  56                         value = mf.FieldHandle.Value;
  57                         if (value == IntPtr.Zero)
  58                                 throw new SerializationException (Locale.GetText ("Insufficient state."));
  59                 }
  60
  61                 public IntPtr Value {
  62                         get {
  63                                 return value;
  64                         }
  65                 }
  66
  67                 public void GetObjectData (SerializationInfo info, StreamingContext context)
  68                 {
  69                         if (info == null)
  70                                 throw new ArgumentNullException ("info");
  71
  72                         info.AddValue ("FieldObj", (MonoField) FieldInfo.GetFieldFromHandle (this), typeof (MonoField));
  73                 }
  74
  75
  76                 public override bool Equals (object obj)
  77                 {
  78                         if (obj == null || GetType () != obj.GetType ())
  79                                 return false;
  80
  81                         return value == ((RuntimeFieldHandle)obj).Value;
  82                 }
  83
  84                 public bool Equals (RuntimeFieldHandle handle)
  85                 {
  86                         return value == handle.Value;
  87                 }
  88
  89                 public override int GetHashCode ()
  90                 {
  91                         return value.GetHashCode ();
  92                 }
  93         }
  94 }