esttorhe · January 20, 2016 16:26
diff --git a/ViewControllersProtocol.swift b/ViewControllersProtocol.swift

 protocol MyProtocol {
  func setup()
 }

 extension MyProtocol where Self: UIViewController {
  func setup() {
    // Do something here
  }
 }

 class MyViewController: MyProtocol {
  override func viewDidLoad() {
    setup()
  }
 }

	protocol MyProtocol {
	func setup()
	}

	extension MyProtocol where Self: UIViewController {
	func setup() {
	// Do something here
	}
	}

	class MyViewController: MyProtocol {
	override func viewDidLoad() {
	setup()
	}
	}