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
  38 namespace System.Reflection {
  39
  40         internal struct MonoEventInfo {
  41                 public Type declaring_type;
  42                 public Type reflected_type;
  43                 public String name;
  44                 public MethodInfo add_method;
  45                 public MethodInfo remove_method;
  46                 public MethodInfo raise_method;
  47                 public EventAttributes attrs;
  48                 public MethodInfo[] other_methods;
  49
  50                 [MethodImplAttribute(MethodImplOptions.InternalCall)]
  51                 internal static extern void get_event_info (MonoEvent ev, out MonoEventInfo info);
  52         }
  53
  54         internal sealed class MonoEvent: EventInfo {
  55                 IntPtr klass;
  56                 IntPtr handle;
  57
  58                 public override EventAttributes Attributes {
  59                         get {
  60                                 MonoEventInfo info;
  61                                 MonoEventInfo.get_event_info (this, out info);
  62
  63                                 return info.attrs;
  64                         }
  65                 }
  66
  67                 public override MethodInfo GetAddMethod(bool nonPublic) {
  68                         MonoEventInfo info;
  69                         MonoEventInfo.get_event_info (this, out info);
  70
  71
  72                         if (nonPublic || (info.add_method != null && info.add_method.IsPublic))
  73                                 return info.add_method;
  74                         return null;
  75                 }
  76
  77                 public override MethodInfo GetRaiseMethod( bool nonPublic) {
  78                         MonoEventInfo info;
  79                         MonoEventInfo.get_event_info (this, out info);
  80
  81                         if (nonPublic || (info.raise_method != null && info.raise_method.IsPublic))
  82                                 return info.raise_method;
  83                         return null;
  84                 }
  85
  86                 public override MethodInfo GetRemoveMethod( bool nonPublic) {
  87                         MonoEventInfo info;
  88                         MonoEventInfo.get_event_info (this, out info);
  89
  90                         if (nonPublic || (info.remove_method != null && info.remove_method.IsPublic))
  91                                 return info.remove_method;
  92                         return null;
  93                 }
  94
  95 #if NET_2_0
  96                 public override MethodInfo[] GetOtherMethods (bool nonPublic) {
  97                         MonoEventInfo info;
  98                         MonoEventInfo.get_event_info (this, out info);
  99
 100                         if (nonPublic)
 101                                 return info.other_methods;
 102                         int num_public = 0;
 103                         foreach (MethodInfo m in info.other_methods) {
 104                                 if (m.IsPublic)
 105                                         num_public++;
 106                         }
 107                         if (num_public == info.other_methods.Length)
 108                                 return info.other_methods;
 109                         MethodInfo[] res = new MethodInfo [num_public];
 110                         num_public = 0;
 111                         foreach (MethodInfo m in info.other_methods) {
 112                                 if (m.IsPublic)
 113                                         res [num_public++] = m;
 114                         }
 115                         return res;
 116                 }
 117 #endif
 118
 119                 public override Type DeclaringType {
 120                         get {
 121                                 MonoEventInfo info;
 122                                 MonoEventInfo.get_event_info (this, out info);
 123
 124                                 return info.declaring_type;
 125                         }
 126                 }
 127
 128                 public override Type ReflectedType {
 129                         get {
 130                                 MonoEventInfo info;
 131                                 MonoEventInfo.get_event_info (this, out info);
 132
 133                                 return info.reflected_type;
 134                         }
 135                 }
 136
 137                 public override string Name {
 138                         get {
 139                                 MonoEventInfo info;
 140                                 MonoEventInfo.get_event_info (this, out info);
 141
 142                                 return info.name;
 143                         }
 144                 }
 145
 146                 public override string ToString ()
 147                 {
 148                         return EventHandlerType + " " + Name;
 149                 }
 150
 151                 public override bool IsDefined (Type attributeType, bool inherit)
 152                 {
 153                         return MonoCustomAttrs.IsDefined (this, attributeType, inherit);
 154                 }
 155
 156                 public override object[] GetCustomAttributes( bool inherit)
 157                 {
 158                         return MonoCustomAttrs.GetCustomAttributes (this, inherit);
 159                 }
 160
 161                 public override object[] GetCustomAttributes( Type attributeType, bool inherit)
 162                 {
 163                         return MonoCustomAttrs.GetCustomAttributes (this, attributeType, inherit);
 164                 }
 165
 166         }
 167 }