mcs/tests/test-anon-136.cs

   1 using System;
   2
   3 delegate void Handler<T> (object sender);
   4
   5 interface IBar<T> {
   6         event Handler<T> Handler;
   7 }
   8
   9 class Foo<T> {
  10
  11         IBar<T> proxy, real;
  12
  13         event Handler<T> handler;
  14
  15         Handler<T> proxyHandler;
  16
  17         public event Handler<T> Handler {
  18                 add {
  19                         if (handler == null) {
  20                                 if (proxyHandler == null)
  21                                         proxyHandler = (object s) => handler (proxy);
  22                         }
  23                         handler += value;
  24                 }
  25                 remove {
  26                         handler -= value;
  27                 }
  28         }
  29 }
  30
  31 class Program {
  32
  33         public static int Main ()
  34         {
  35                 var x = new Foo<int> ();
  36                 x.Handler += null;
  37                 return 0;
  38         }
  39 }