Hi all, I am reading the source code of
NotifcationCenter, however, there is only the implementation of
open func addObserver(forName name: NSNotification.Name?, object obj: Any?, queue: OperationQueue?, using block: @escaping (Notification) -> Void). I searched the whole swift-corelibs-foundation project and failed to get
func addObserver(_ observer: Any, selector aSelector: Selector, name aName: NSNotification.Name?, object anObject: Any?) implementation.
I guess I missed some basic points about the foundation project