NSNotification handler protocol extension

NotificationHandler.swift

public protocol NotificationHandler {
    var name: String { get }
    func post(object: AnyObject?, userInfo: [NSObject : AnyObject]?)
    func observe(observer: AnyObject, selector: Selector, object: AnyObject?)
    func remove(observer: AnyObject, object: AnyObject?)
    static func remove(observer: AnyObject)
}

public extension NotificationHandler {
    func post(object: AnyObject? = nil, userInfo: [NSObject : AnyObject]? = nil) {
        NSNotificationCenter.defaultCenter().postNotificationName(name, object: object, userInfo: userInfo)
    }
    func observe(observer: AnyObject, selector: Selector, object: AnyObject? = nil) {
        NSNotificationCenter.defaultCenter().addObserver(observer, selector: selector, name: name, object: object)
    }
    func remove(observer: AnyObject, object: AnyObject? = nil) {
        NSNotificationCenter.defaultCenter().removeObserver(observer, name: name, object: object)
    }
    static func remove(observer: AnyObject) {
        NSNotificationCenter.defaultCenter().removeObserver(observer)
    }
}

// Example 1:

enum Notification: String, NotificationHandler {
    case SuperImportantThing
    case SystemTimeChanged 
    
    var name: String {
        switch self {
        case .SystemTimeChanged: return NSSystemClockDidChangeNotification
        default: return rawValue
        }
    }
}

// elsewhere in code...
Notification.SystemTimeChange.observe(self, Selector("handleTimeChange:"))
Notification.SuperImportantThing.post()
Notification.remove(self)

// ------
// Example 2:

extension String: NotificationHandler {
    public var name: String {
        return self
    }
}
  
"extensions_rule".post()   // Cool that this works, but please don't :-)