subscribeStream method
Subscribes a Stream StreamSink to an Event.
This allows a sequence of broadcast Events to be represented and manipulated as a Stream. The rich range of mechanisms to filter and manipulate a Stream become available.
Remember that the supplied StreamSink should be closed when no longer needed.
// Example
var e = Event();
var sc = StreamController();
e.subscribeStream(sc.sink);
e.broadcast();
sc.stream.listen((e) => print('boom'));
sc.close();
Implementation
void subscribeStream(StreamSink sink) {
_handlers.add((args) => {sink.add(args)});
}