class DelegateForwarder<T: NSObjectProtocol>: NSObject {

	//	MARK: - Properties

	weak var internalDelegate: T?

	weak var externalDelegate: T?


	var asConforming: T {
		return unsafeBitCast(self, to: T.self)
	}


	//	MARK: - Init

	init(internalDelegate: T? = nil, externalDelegate: T? = nil) {
		self.internalDelegate = internalDelegate
		self.externalDelegate = externalDelegate
	}


	//	MARK: - Forwarding

	override func responds(to sel: Selector!) -> Bool {
		return
			self.internalDelegate?.responds(to: sel) ?? false ||
			self.externalDelegate?.responds(to: sel) ?? false
	}

	override func forwardingTarget(for sel: Selector!) -> Any? {
		if self.internalDelegate?.responds(to: sel) == true {
			return self.internalDelegate
		}

		return self.externalDelegate
	}

}