 
             dispatch_source_set_event_handler(timer) {
                 if let object = self.object {
-                    block(object: object) // nothing is done if object was meanwhile set to nil
+                    block(object) // nothing is done if object was meanwhile set to nil
                 }
                 self._cancel()
             }

        dispatch_sync(self.queue, block)
    }
    
    public func after(delay delay:NSTimeInterval, perform block:(object:TimedObject) -> Void) {
        let requestTime = now()
        
        self.whileLocked {

    case Delay
}

public typealias DoBlock = @convention(block) (AnyObject) -> Void
public typealias LockedBlock = @convention(block) () -> Void

public final class Timer<TimedObject:AnyObject>:NSObject {
