My app main router event loop

gistfile1.txt

    init() {
        (eventSignal, eventObserver) = Signal<MainRouterSourceEvent, NoError>.pipe();
        eventSignal.observeNext { (event) in
            let processed = self.handlers.map( { $0(self) }).reduce(false, combine: { (processed, handler) -> Bool in
                return processed ? true : handler(event)
            })
            assert(processed, "Unknown event")
        }
    }