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 #pragma warning disable 169
  63                 IntPtr klass;
  64                 IntPtr handle;
  65 #pragma warning restore 169
  66
  67                 public override EventAttributes Attributes {
  68                         get {
  69                                 MonoEventInfo info;
  70                                 MonoEventInfo.get_event_info (this, out info);
  71
  72                                 return info.attrs;
  73                         }
  74                 }
  75
  76                 public override MethodInfo GetAddMethod(bool nonPublic) {
  77                         MonoEventInfo info;
  78                         MonoEventInfo.get_event_info (this, out info);
  79
  80
  81                         if (nonPublic || (info.add_method != null && info.add_method.IsPublic))
  82                                 return info.add_method;
  83                         return null;
  84                 }
  85
  86                 public override MethodInfo GetRaiseMethod( bool nonPublic) {
  87                         MonoEventInfo info;
  88                         MonoEventInfo.get_event_info (this, out info);
  89
  90                         if (nonPublic || (info.raise_method != null && info.raise_method.IsPublic))
  91                                 return info.raise_method;
  92                         return null;
  93                 }
  94
  95                 public override MethodInfo GetRemoveMethod( bool nonPublic) {
  96                         MonoEventInfo info;
  97                         MonoEventInfo.get_event_info (this, out info);
  98
  99                         if (nonPublic || (info.remove_method != null && info.remove_method.IsPublic))
 100                                 return info.remove_method;
 101                         return null;
 102                 }
 103
 104 #if NET_2_0
 105                 public override MethodInfo[] GetOtherMethods (bool nonPublic) {
 106                         MonoEventInfo info;
 107                         MonoEventInfo.get_event_info (this, out info);
 108
 109                         if (nonPublic)
 110                                 return info.other_methods;
 111                         int num_public = 0;
 112                         foreach (MethodInfo m in info.other_methods) {
 113                                 if (m.IsPublic)
 114                                         num_public++;
 115                         }
 116                         if (num_public == info.other_methods.Length)
 117                                 return info.other_methods;
 118                         MethodInfo[] res = new MethodInfo [num_public];
 119                         num_public = 0;
 120                         foreach (MethodInfo m in info.other_methods) {
 121                                 if (m.IsPublic)
 122                                         res [num_public++] = m;
 123                         }
 124                         return res;
 125                 }
 126 #endif
 127
 128                 public override Type DeclaringType {
 129                         get {
 130                                 MonoEventInfo info;
 131                                 MonoEventInfo.get_event_info (this, out info);
 132
 133                                 return info.declaring_type;
 134                         }
 135                 }
 136
 137                 public override Type ReflectedType {
 138                         get {
 139                                 MonoEventInfo info;
 140                                 MonoEventInfo.get_event_info (this, out info);
 141
 142                                 return info.reflected_type;
 143                         }
 144                 }
 145
 146                 public override string Name {
 147                         get {
 148                                 MonoEventInfo info;
 149                                 MonoEventInfo.get_event_info (this, out info);
 150
 151                                 return info.name;
 152                         }
 153                 }
 154
 155                 public override string ToString ()
 156                 {
 157                         return EventHandlerType + " " + Name;
 158                 }
 159
 160                 public override bool IsDefined (Type attributeType, bool inherit)
 161                 {
 162                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 163                 }
 164
 165                 public override object[] GetCustomAttributes( bool inherit)
 166                 {
 167                         return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 168                 }
 169
 170                 public override object[] GetCustomAttributes( Type attributeType, bool inherit)
 171                 {
 172                         return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 173                 }
 174
 175 #if NET_2_0
 176                 // ISerializable
 177                 public void GetObjectData (SerializationInfo info, StreamingContext context)
 178                 {
 179                         MemberInfoSerializationHolder.Serialize (info, Name, ReflectedType,
 180                                 ToString(), MemberTypes.Event);
 181                 }
 182 #endif
 183         }
 184 }