func announce()

in tutorials/tutorial4/TicTacToe/TicTacToe/TicTacToeViewController.swift [55:74]

• 20 lines of code
• 4 McCabe index (conditional complexity)

    func announce(winner: PlayerType?, withCompletionHandler handler: @escaping () -> ()) {
        let winnerString: String = {
            if let winner = winner {
                switch winner {
                case .player1:
                    return "\(player1Name) Won!"
                case .player2:
                    return "\(player2Name) Won!"
                }
            } else {
                return "It's a Tie"
            }
        }()
        let alert = UIAlertController(title: winnerString, message: nil, preferredStyle: .alert)
        let closeAction = UIAlertAction(title: "Close Game", style: UIAlertActionStyle.default) { _ in
            handler()
        }
        alert.addAction(closeAction)
        present(alert, animated: true, completion: nil)
    }