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

   1 //
   2 // System.Reflection/MonoEvent.cs
   3 //
   4 // Author:
   5 //   Paolo Molaro (lupus@ximian.com)
   6 //
   7 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   8 //
   9
  10 //
  11 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System;
  34 using System.Reflection;
  35 using System.Runtime.CompilerServices;
  36 using System.Runtime.InteropServices;
  37 using System.Runtime.Serialization;
  38
  39 namespace System.Reflection {
  40
  41         internal struct MonoEventInfo {
  42                 public Type declaring_type;
  43                 public Type reflected_type;
  44                 public String name;
  45                 public MethodInfo add_method;
  46                 public MethodInfo remove_method;
  47                 public MethodInfo raise_method;
  48                 public EventAttributes attrs;
  49                 public MethodInfo[] other_methods;
  50
  51                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  52                 internal static extern void get_event_info (MonoEvent ev, out MonoEventInfo info);
  53         }
  54
  55 #if NET_2_0
  56         [Serializable]
  57         internal sealed class MonoEvent: EventInfo, ISerializable
  58 #else
  59         internal sealed class MonoEvent: EventInfo
  60 #endif
  61         {
  62                 IntPtr klass;
  63                 IntPtr handle;
  64
  65                 public override EventAttributes Attributes {
  66                         get {
  67                                 MonoEventInfo info;
  68                                 MonoEventInfo.get_event_info (this, out info);
  69
  70                                 return info.attrs;
  71                         }
  72                 }
  73
  74                 public override MethodInfo GetAddMethod(bool nonPublic) {
  75                         MonoEventInfo info;
  76                         MonoEventInfo.get_event_info (this, out info);
  77
  78
  79                         if (nonPublic || (info.add_method != null && info.add_method.IsPublic))
  80                                 return info.add_method;
  81                         return null;
  82                 }
  83
  84                 public override MethodInfo GetRaiseMethod( bool nonPublic) {
  85                         MonoEventInfo info;
  86                         MonoEventInfo.get_event_info (this, out info);
  87
  88                         if (nonPublic || (info.raise_method != null && info.raise_method.IsPublic))
  89                                 return info.raise_method;
  90                         return null;
  91                 }
  92
  93                 public override MethodInfo GetRemoveMethod( bool nonPublic) {
  94                         MonoEventInfo info;
  95                         MonoEventInfo.get_event_info (this, out info);
  96
  97                         if (nonPublic || (info.remove_method != null && info.remove_method.IsPublic))
  98                                 return info.remove_method;
  99                         return null;
 100                 }
 101
 102 #if NET_2_0
 103                 public override MethodInfo[] GetOtherMethods (bool nonPublic) {
 104                         MonoEventInfo info;
 105                         MonoEventInfo.get_event_info (this, out info);
 106
 107                         if (nonPublic)
 108                                 return info.other_methods;
 109                         int num_public = 0;
 110                         foreach (MethodInfo m in info.other_methods) {
 111                                 if (m.IsPublic)
 112                                         num_public++;
 113                         }
 114                         if (num_public == info.other_methods.Length)
 115                                 return info.other_methods;
 116                         MethodInfo[] res = new MethodInfo [num_public];
 117                         num_public = 0;
 118                         foreach (MethodInfo m in info.other_methods) {
 119                                 if (m.IsPublic)
 120                                         res [num_public++] = m;
 121                         }
 122                         return res;
 123                 }
 124 #endif
 125
 126                 public override Type DeclaringType {
 127                         get {
 128                                 MonoEventInfo info;
 129                                 MonoEventInfo.get_event_info (this, out info);
 130
 131                                 return info.declaring_type;
 132                         }
 133                 }
 134
 135                 public override Type ReflectedType {
 136                         get {
 137                                 MonoEventInfo info;
 138                                 MonoEventInfo.get_event_info (this, out info);
 139
 140                                 return info.reflected_type;
 141                         }
 142                 }
 143
 144                 public override string Name {
 145                         get {
 146                                 MonoEventInfo info;
 147                                 MonoEventInfo.get_event_info (this, out info);
 148
 149                                 return info.name;
 150                         }
 151                 }
 152
 153                 public override string ToString ()
 154                 {
 155                         return EventHandlerType + " " + Name;
 156                 }
 157
 158                 public override bool IsDefined (Type attributeType, bool inherit)
 159                 {
 160                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 161                 }
 162
 163                 public override object[] GetCustomAttributes( bool inherit)
 164                 {
 165                         return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 166                 }
 167
 168                 public override object[] GetCustomAttributes( Type attributeType, bool inherit)
 169                 {
 170                         return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 171                 }
 172
 173 #if NET_2_0
 174                 // ISerializable
 175                 public void GetObjectData (SerializationInfo info, StreamingContext context)
 176                 {
 177                         MemberInfoSerializationHolder.Serialize (info, Name, ReflectedType,
 178                                 ToString(), MemberTypes.Event);
 179                 }
 180 #endif
 181         }
 182 }