2 // System.RuntimeTypeHandle.cs
5 // Miguel de Icaza (miguel@ximian.com)
6 // Andreas Nahr (ClassDevelopment@A-SoftTech.com)
8 // (C) Ximian, Inc. http://www.ximian.com
12 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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:
22 // The above copyright notice and this permission notice shall be
23 // included in all copies or substantial portions of the Software.
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.
34 using System.Runtime.Serialization;
35 using System.Runtime.InteropServices;
36 using System.Runtime.ConstrainedExecution;
42 public struct RuntimeTypeHandle : ISerializable
46 internal RuntimeTypeHandle (IntPtr val)
51 RuntimeTypeHandle (SerializationInfo info, StreamingContext context)
54 throw new ArgumentNullException ("info");
56 MonoType mt = ((MonoType) info.GetValue ("TypeObj", typeof (MonoType)));
57 value = mt.TypeHandle.Value;
58 if (value == IntPtr.Zero)
59 throw new SerializationException (Locale.GetText ("Insufficient state."));
68 public void GetObjectData (SerializationInfo info, StreamingContext context)
71 throw new ArgumentNullException ("info");
73 if (value == IntPtr.Zero)
74 throw new SerializationException ("Object fields may not be properly initialized");
76 info.AddValue ("TypeObj", Type.GetTypeHandle (this), typeof (MonoType));
79 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
80 public override bool Equals (object obj)
82 if (obj == null || GetType () != obj.GetType ())
85 return value == ((RuntimeTypeHandle)obj).Value;
88 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
89 public bool Equals (RuntimeTypeHandle handle)
91 return value == handle.Value;
94 public override int GetHashCode ()
96 return value.GetHashCode ();
99 public static bool operator == (RuntimeTypeHandle left, Object right)
101 return (right != null) && (right is RuntimeTypeHandle) && left.Equals ((RuntimeTypeHandle)right);
104 public static bool operator != (RuntimeTypeHandle left, Object right)
106 return (right == null) || !(right is RuntimeTypeHandle) || !left.Equals ((RuntimeTypeHandle)right);
109 public static bool operator == (Object left, RuntimeTypeHandle right)
111 return (left != null) && (left is RuntimeTypeHandle) && ((RuntimeTypeHandle)left).Equals (right);
114 public static bool operator != (Object left, RuntimeTypeHandle right)
116 return (left == null) || !(left is RuntimeTypeHandle) || !((RuntimeTypeHandle)left).Equals (right);
119 [CLSCompliant (false)]
120 [ReliabilityContractAttribute (Consistency.WillNotCorruptState, Cer.Success)]
121 public ModuleHandle GetModuleHandle ()
123 // Although MS' runtime is crashing here, we prefer throwing an exception.
124 // The check is needed because Type.GetTypeFromHandle returns null
126 if (value == IntPtr.Zero)
127 throw new InvalidOperationException ("Object fields may not be properly initialized");
129 return Type.GetTypeFromHandle (this).Module.ModuleHandle;