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         public sealed class EventBuilder {
  43                 string name;
  44                 Type type;
  45                 TypeBuilder typeb;
  46                 CustomAttributeBuilder[] cattrs;
  47                 MethodBuilder add_method;
  48                 MethodBuilder remove_method;
  49                 MethodBuilder raise_method;
  50                 MethodBuilder[] other_methods;
  51                 EventAttributes attrs;
  52                 int table_idx;
  53
  54                 internal EventBuilder (TypeBuilder tb, string eventName, EventAttributes eventAttrs, Type eventType) {
  55                         name = eventName;
  56                         attrs = eventAttrs;
  57                         type = eventType;
  58                         typeb = tb;
  59                         table_idx = get_next_table_index (this, 0x14, true);
  60                 }
  61
  62                 internal int get_next_table_index (object obj, int table, bool inc) {
  63                         return typeb.get_next_table_index (obj, table, inc);
  64                 }
  65
  66                 public void AddOtherMethod( MethodBuilder mdBuilder) {
  67                         if (mdBuilder == null)
  68                                 throw new ArgumentNullException ("mdBuilder");
  69                         RejectIfCreated ();
  70                         if (other_methods != null) {
  71                                 MethodBuilder[] newv = new MethodBuilder [other_methods.Length + 1];
  72                                 other_methods.CopyTo (newv, 0);
  73                                 other_methods = newv;
  74                         } else {
  75                                 other_methods = new MethodBuilder [1];
  76                         }
  77                         other_methods [other_methods.Length - 1] = mdBuilder;
  78                 }
  79
  80                 public EventToken GetEventToken () {
  81                         return new EventToken (0x14000000 | table_idx);
  82                 }
  83                 public void SetAddOnMethod( MethodBuilder mdBuilder) {
  84                         if (mdBuilder == null)
  85                                 throw new ArgumentNullException ("mdBuilder");
  86                         RejectIfCreated ();
  87                         add_method = mdBuilder;
  88                 }
  89                 public void SetRaiseMethod( MethodBuilder mdBuilder) {
  90                         if (mdBuilder == null)
  91                                 throw new ArgumentNullException ("mdBuilder");
  92                         RejectIfCreated ();
  93                         raise_method = mdBuilder;
  94                 }
  95                 public void SetRemoveOnMethod( MethodBuilder mdBuilder) {
  96                         if (mdBuilder == null)
  97                                 throw new ArgumentNullException ("mdBuilder");
  98                         RejectIfCreated ();
  99                         remove_method = mdBuilder;
 100                 }
 101
 102                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
 103                         if (customBuilder == null)
 104                                 throw new ArgumentNullException ("customBuilder");
 105                         RejectIfCreated ();
 106                         if (cattrs != null) {
 107                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
 108                                 cattrs.CopyTo (new_array, 0);
 109                                 new_array [cattrs.Length] = customBuilder;
 110                                 cattrs = new_array;
 111                         } else {
 112                                 cattrs = new CustomAttributeBuilder [1];
 113                                 cattrs [0] = customBuilder;
 114                         }
 115                 }
 116                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
 117                         if (con == null)
 118                                 throw new ArgumentNullException ("con");
 119                         if (binaryAttribute == null)
 120                                 throw new ArgumentNullException ("binaryAttribute");
 121                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
 122                 }
 123
 124                 private void RejectIfCreated () {
 125                         if (typeb.is_created)
 126                                 throw new InvalidOperationException ("Type definition of the method is complete.");
 127                 }
 128         }
 129 }
 130