handle<E extends T> method

HandlerCanceler handle<E extends T>(EventHandler<E> handler)

handle events of type E with handler

returns a HandlerCanceler that can be used to cancel the handler and clear it from the memory also any handler will be canceled and cleared if the emitter is destroyed by calling dispose or if clearHandlers is called

Implementation

HandlerCanceler handle<E extends T>(EventHandler<E> handler) {
  final _sub = filteredStream<E>().listen(handler);
  _subscriptions.add(_sub);

  bool isCanceled = false;
  return () async {
    if (isCanceled) return;
    _subscriptions.remove(_sub);
    isCanceled = true;
    await _sub.cancel();
  };
}