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

   1
   2 //
   3 // System.Reflection.Emit/EventBuilder.cs
   4 //
   5 // Author:
   6 //   Paolo Molaro (lupus@ximian.com)
   7 //
   8 // (C) 2001 Ximian, Inc.  http://www.ximian.com
   9 //
  10
  11 using System;
  12 using System.Reflection;
  13 using System.Reflection.Emit;
  14 using System.Globalization;
  15 using System.Runtime.CompilerServices;
  16 using System.Runtime.InteropServices;
  17
  18 namespace System.Reflection.Emit {
  19         public sealed class EventBuilder {
  20                 string name;
  21                 Type type;
  22                 TypeBuilder typeb;
  23                 CustomAttributeBuilder[] cattrs;
  24                 MethodBuilder add_method;
  25                 MethodBuilder remove_method;
  26                 MethodBuilder raise_method;
  27                 MethodBuilder[] other_methods;
  28                 EventAttributes attrs;
  29                 int table_idx;
  30
  31                 internal EventBuilder (TypeBuilder tb, string eventName, EventAttributes eventAttrs, Type eventType) {
  32                         name = eventName;
  33                         attrs = eventAttrs;
  34                         type = eventType;
  35                         typeb = tb;
  36                         table_idx = get_next_table_index (this, 0x14, true);
  37                 }
  38
  39                 internal int get_next_table_index (object obj, int table, bool inc) {
  40                         return typeb.get_next_table_index (obj, table, inc);
  41                 }
  42
  43                 public void AddOtherMethod( MethodBuilder mdBuilder) {
  44                         if (mdBuilder == null)
  45                                 throw new ArgumentNullException ("mdBuilder");
  46                         RejectIfCreated ();
  47                         if (other_methods != null) {
  48                                 MethodBuilder[] newv = new MethodBuilder [other_methods.Length + 1];
  49                                 other_methods.CopyTo (newv, 0);
  50                                 other_methods = newv;
  51                         } else {
  52                                 other_methods = new MethodBuilder [1];
  53                         }
  54                         other_methods [other_methods.Length - 1] = mdBuilder;
  55                 }
  56
  57                 public EventToken GetEventToken () {
  58                         return new EventToken (0x14000000 | table_idx);
  59                 }
  60                 public void SetAddOnMethod( MethodBuilder mdBuilder) {
  61                         if (mdBuilder == null)
  62                                 throw new ArgumentNullException ("mdBuilder");
  63                         RejectIfCreated ();
  64                         add_method = mdBuilder;
  65                 }
  66                 public void SetRaiseMethod( MethodBuilder mdBuilder) {
  67                         if (mdBuilder == null)
  68                                 throw new ArgumentNullException ("mdBuilder");
  69                         RejectIfCreated ();
  70                         raise_method = mdBuilder;
  71                 }
  72                 public void SetRemoveOnMethod( MethodBuilder mdBuilder) {
  73                         if (mdBuilder == null)
  74                                 throw new ArgumentNullException ("mdBuilder");
  75                         RejectIfCreated ();
  76                         remove_method = mdBuilder;
  77                 }
  78
  79                 public void SetCustomAttribute( CustomAttributeBuilder customBuilder) {
  80                         if (customBuilder == null)
  81                                 throw new ArgumentNullException ("customBuilder");
  82                         RejectIfCreated ();
  83                         if (cattrs != null) {
  84                                 CustomAttributeBuilder[] new_array = new CustomAttributeBuilder [cattrs.Length + 1];
  85                                 cattrs.CopyTo (new_array, 0);
  86                                 new_array [cattrs.Length] = customBuilder;
  87                                 cattrs = new_array;
  88                         } else {
  89                                 cattrs = new CustomAttributeBuilder [1];
  90                                 cattrs [0] = customBuilder;
  91                         }
  92                 }
  93                 public void SetCustomAttribute( ConstructorInfo con, byte[] binaryAttribute) {
  94                         if (con == null)
  95                                 throw new ArgumentNullException ("con");
  96                         if (binaryAttribute == null)
  97                                 throw new ArgumentNullException ("binaryAttribute");
  98                         SetCustomAttribute (new CustomAttributeBuilder (con, binaryAttribute));
  99                 }
 100
 101                 private void RejectIfCreated () {
 102                         if (typeb.is_created)
 103                                 throw new InvalidOperationException ("Type definition of the method is complete.");
 104                 }
 105         }
 106 }
 107