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digitalmars.D - Delegate bug?

Hi. I'm writing an Event class, and have the following code 
(important line highlighted):

    class Event(TEventArgs : EventArgs = EventArgs) {
       alias void delegate(Object, TEventArgs) THandlerFn;
       SList!(THandlerFn) handlers;

       Event opOpAssign(string op)(void delegate() handler) {
          static if (op == "+") {
         handlers.insert( (Object o, EventArgs e) { handler(); 
 } );



} else static assert(0, "Operator "~op~" not implemented"); } } Usage: Event!EventArgs Close; Close += { ... some delegate code ... }; Calling the first (and only) delegate in the "handlers" list fails to call my delegate code. If I change the function to the following (changes highlighted): Event opOpAssign(string op)(void delegate() handler) { static if (op == "+") {
      auto wrapper = (Object o, EventArgs e) { handler(); };
      handlers.insert(wrapper);



} else static assert(0, "Operator "~op~" not implemented"); } It works without any problem. Why is this? (In case you're wondering, I'm wanting the ability to pass in a delegate accepting no arguments, in place of a delegate accepting an Object and an EventArgs.)
Nov 15 2012