mcs/class/corlib/System.Reflection.Emit/EventBuilder.cs

   1
   2 //
   3 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
   4 //
   5 // Permission is hereby granted, free of charge, to any person obtaining
   6 // a copy of this software and associated documentation files (the
   7 // "Software"), to deal in the Software without restriction, including
   8 // without limitation the rights to use, copy, modify, merge, publish,
   9 // distribute, sublicense, and/or sell copies of the Software, and to
  10 // permit persons to whom the Software is furnished to do so, subject to
  11 // the following conditions:
  12 //
  13 // The above copyright notice and this permission notice shall be
  14 // included in all copies or substantial portions of the Software.
  15 //
  16 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  20 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  21 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  22 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23 //
  24
  25 //
  26 // System.Reflection.Emit/EventBuilder.cs
  27 //
  28 // Author:
  29 //   Paolo Molaro (lupus@ximian.com)
  30 //
  31 // (C) 2001 Ximian, Inc.  http://www.ximian.com
  32 //
  33
  34 using System;
  35 using System.Reflection;
  36 using System.Reflection.Emit;
  37 using System.Globalization;
  38 using System.Runtime.CompilerServices;
  39 using System.Runtime.InteropServices;
  40
  41 namespace System.Reflection.Emit {
  42 #if NET_2_0
  43         [ComVisible (true)]
  44         [ClassInterfaceAttribute (ClassInterfaceType.None)]
  45         [ComDefaultInterfaceAttribute (typeof (_EventBuilder))]
  46 #endif
  47         public sealed class EventBuilder {
  48                 string name;
  49                 Type type;
  50                 TypeBuilder typeb;
  51                 CustomAttributeBuilder[] cattrs;
  52                 MethodBuilder add_method;
  53                 MethodBuilder remove_method;
  54                 MethodBuilder raise_method;
  55                 MethodBuilder[] other_methods;
  56                 EventAttributes attrs;
  57                 int table_idx;
  58
  59                 internal EventBuilder (TypeBuilder tb, string eventName, EventAttributes eventAttrs, Type eventType) {
  60                         name = eventName;
  61                         attrs = eventAttrs;
  62                         type = eventType;
  63                         typeb = tb;
  64                         table_idx = get_next_table_index (this, 0x14, true);
  65                 }
  66
  67                 internal int get_next_table_index (object obj, int table, bool inc) {
  68                         return typeb.get_next_table_index (obj, table, inc);
  69                 }
  70
  71                 public void AddOtherMethod( MethodBuilder mdBuilder) {
  72                         if (mdBuilder == null)
  73                                 throw new ArgumentNullException ("mdBuilder");
  74                         RejectIfCreated ();
  75                         if (other_methods != null) {
  76                                 MethodBuilder[] newv = new MethodBuilder [other_methods.Length + 1];
  77                                 other_methods.CopyTo (newv, 0);
  78                                 other_methods = newv;
  79                         } else {
  80                                 other_methods = new MethodBuilder [1];
  81                         }
  82                         other_methods [other_methods.Length - 1] = mdBuilder;
  83                 }
  84
  85                 public EventToken GetEventToken () {
  86                         return new EventToken (0x14000000 | table_idx);
  87                 }
  88                 public void SetAddOnMethod( MethodBuilder mdBuilder) {
  89                         if (mdBuilder == null)
  90                                 throw new ArgumentNullException ("mdBuilder");
  91                         RejectIfCreated ();
  92                         add_method = mdBuilder;
  93                 }
  94                 public void SetRaiseMethod( MethodBuilder mdBuilder) {
  95                         if (mdBuilder == null)
  96                                 throw new ArgumentNullException ("mdBuilder");
  97                         RejectIfCreated ();
  98                         raise_method = mdBuilder;
  99                 }
 100                 public void SetRemoveOnMethod( MethodBuilder mdBuilder) {
 101                         if (mdBuilder == null)
 102                                 throw new ArgumentNullException ("mdBuilder");
 103                         RejectIfCreated ();
 104                         remove_method = mdBuilder;
 105                 }
 106
 107                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 108                         if (customBuilder == null)
 109                                 throw new ArgumentNullException ("customBuilder");
 110                         RejectIfCreated ();
 111                         if (cattrs != null) {
 112                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 113                                 cattrs.CopyTo (new_array, 0);
 114                                 new_array [cattrs.Length] = customBuilder;
 115                                 cattrs = new_array;
 116                         } else {
 117                                 cattrs = new CustomAttributeBuilder [1];
 118                                 cattrs [0] = customBuilder;
 119                         }
 120                 }
 121
 122 #if NET_2_0
 123                 [ComVisible (true)]
 124 #endif
 125                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 126                         if (con == null)
 127                                 throw new ArgumentNullException ("con");
 128                         if (binaryAttribute == null)
 129                                 throw new ArgumentNullException ("binaryAttribute");
 130                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 131                 }
 132
 133                 private void RejectIfCreated () {
 134                         if (typeb.is_created)
 135                                 throw new InvalidOperationException ("Type definition of the method is complete.");
 136                 }
 137         }
 138 }
 139