public void AddHandler(object target, object handler, LanguageContext language) {
ContractUtils.RequiresNotNull(handler, "handler");
ContractUtils.RequiresNotNull(language, "language");
Delegate delegateHandler;
HandlerList stubs;
// we can add event directly (signature does match):
if (_eventInfo.EventHandlerType.IsAssignableFrom(handler.GetType())) {
delegateHandler = (Delegate)handler;
stubs = null;
} else {
// create signature converting stub:
delegateHandler = language.GetDelegate(handler, _eventInfo.EventHandlerType);
stubs = GetHandlerList(target);
}
GetCallableAddMethod().Invoke(target, new object[] { delegateHandler });
if (stubs != null) {
// remember the stub so that we could search for it on removal:
stubs.AddHandler(handler, delegateHandler);
}
}