mcs/class/corlib/System.Reflection/MemberInfoSerializationHolder.cs

   1 // MemberInfoSerializationHolder.cs.cs
   2 //
   3 // Author:
   4 //  Patrik Torstensson
   5 //  Robert Jordan <robertj@gmx.net>
   6 //
   7 // (C) 2003 Patrik Torstensson
   8
   9 //
  10 // Copyright (C) 2004-2007 Novell, Inc (http://www.novell.com)
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.Runtime.Serialization;
  34
  35 namespace System.Reflection
  36 {
  37         [Serializable]
  38         internal class MemberInfoSerializationHolder : IObjectReference, ISerializable
  39         {
  40                 const BindingFlags DefaultBinding = BindingFlags.Instance | BindingFlags.Static |
  41                         BindingFlags.Public | BindingFlags.NonPublic;
  42
  43                 readonly string         _memberName;
  44                 readonly string         _memberSignature;
  45                 readonly MemberTypes    _memberType;
  46                 readonly Type           _reflectedType;
  47 #if NET_2_0
  48                 readonly Type[]          _genericArguments;
  49 #endif
  50                 MemberInfoSerializationHolder(SerializationInfo info, StreamingContext ctx)
  51                 {
  52                         string assemblyName;
  53                         string typeName;
  54
  55                         assemblyName = info.GetString("AssemblyName");
  56                         typeName = info.GetString("ClassName");
  57
  58                         _memberName = info.GetString("Name");
  59                         _memberSignature = info.GetString("Signature");
  60                         _memberType = (MemberTypes) info.GetInt32("MemberType");
  61
  62 #if NET_2_0
  63                         try {
  64                                 _genericArguments = null;
  65
  66                                 // FIXME: this doesn't work at present. It seems that
  67                                 // ObjectManager doesn't cope with nested IObjectReferences.
  68                                 // _genericArguments = (Type[]) info.GetValue("GenericArguments", typeof(Type[]));
  69                         } catch (SerializationException) {
  70                                 // expected (old NET_1_0 protocol)
  71                         }
  72 #endif
  73                         // Load type
  74                         Assembly asm = Assembly.Load(assemblyName);
  75
  76                         _reflectedType = asm.GetType(typeName, true, true);
  77                 }
  78
  79                 public static void Serialize(SerializationInfo info, String name, Type klass, String signature, MemberTypes type)
  80                 {
  81                         Serialize (info, name, klass, signature, type, null);
  82                 }
  83
  84 #if NET_2_0
  85                 public
  86 #endif
  87                 static void Serialize(SerializationInfo info, String name, Type klass, String signature, MemberTypes type, Type[] genericArguments)
  88                 {
  89                         info.SetType( typeof(MemberInfoSerializationHolder));
  90
  91                         info.AddValue("AssemblyName", klass.Module.Assembly.FullName, typeof(String));
  92                         info.AddValue("ClassName", klass.FullName, typeof(String));
  93
  94                         info.AddValue("Name", name, typeof(String));
  95                         info.AddValue("Signature", signature, typeof(String));
  96                         info.AddValue("MemberType",(int)type);
  97 #if NET_2_0
  98                         info.AddValue("GenericArguments", genericArguments, typeof (Type[]));
  99 #endif
 100                 }
 101
 102                 public void GetObjectData(SerializationInfo info, StreamingContext context)
 103                 {
 104                         throw new NotSupportedException();
 105                 }
 106
 107                 public object GetRealObject(StreamingContext context)
 108                 {
 109                         switch (_memberType)
 110                         {
 111                                 case MemberTypes.Constructor:
 112                                         ConstructorInfo [] ctors;
 113
 114                                         ctors = _reflectedType.GetConstructors (DefaultBinding);
 115                                         for (int i = 0; i < ctors.Length; i++)
 116                                                 if ( ctors[i].ToString().Equals(_memberSignature))
 117                                                         return ctors[i];
 118
 119                                         throw new SerializationException (String.Format ("Could not find constructor '{0}' in type '{1}'", _memberSignature, _reflectedType));
 120
 121                                 case MemberTypes.Method:
 122                                         MethodInfo [] methods;
 123
 124                                         methods = _reflectedType.GetMethods(DefaultBinding);
 125                                         for (int i = 0; i < methods.Length; i++)
 126                                                 if ((methods[i]).ToString().Equals(_memberSignature))
 127                                                         return methods[i];
 128 #if NET_2_0
 129                                                 else if (_genericArguments != null &&
 130                                                         methods[i].IsGenericMethod &&
 131                                                         methods[i].GetGenericArguments().Length == _genericArguments.Length) {
 132
 133                                                         MethodInfo mi = methods[i].MakeGenericMethod(_genericArguments);
 134
 135                                                         if (mi.ToString() == _memberSignature)
 136                                                                 return mi;
 137                                                 }
 138 #endif
 139
 140                                         throw new SerializationException (String.Format ("Could not find method '{0}' in type '{1}'", _memberSignature, _reflectedType));
 141
 142                                 case MemberTypes.Field:
 143                                         FieldInfo fi = _reflectedType.GetField (_memberName, DefaultBinding);
 144
 145                                         if (fi != null)
 146                                                 return fi;
 147
 148                                         throw new SerializationException (String.Format ("Could not find field '{0}' in type '{1}'", _memberName, _reflectedType));
 149
 150                                 case MemberTypes.Property:
 151                                         PropertyInfo pi = _reflectedType.GetProperty (_memberName, DefaultBinding);
 152
 153                                         if (pi != null)
 154                                                 return pi;
 155
 156                                         throw new SerializationException (String.Format ("Could not find property '{0}' in type '{1}'", _memberName, _reflectedType));
 157
 158 #if NET_2_0
 159                                 case MemberTypes.Event:
 160                                         EventInfo ei = _reflectedType.GetEvent (_memberName, DefaultBinding);
 161
 162                                         if (ei != null)
 163                                                 return ei;
 164
 165                                         throw new SerializationException (String.Format ("Could not find event '{0}' in type '{1}'", _memberName, _reflectedType));
 166 #endif
 167
 168                                 default:
 169                                         throw new SerializationException (String.Format ("Unhandled MemberType {0}",  _memberType));
 170                         }
 171                 }
 172         }
 173 }