UIViewController+Instantiable

Instantiable.swift

protocol Instantiable {
    static func make() -> Self
}

extension Instantiable where Self: UIViewController {
    /// Instantiates controller from storyboard.
    /// - example:
    /// `let myViewController = MyViewController.make()`
    /// - important:
    /// Initial controller of the same type must exists in storyboard named as controller's class, otherwise will `fatalError()`.
    /// - Returns: Instantiated view controller.
    static func make() -> Self {
        let storyboard = UIStoryboard(name: String(describing: self), bundle: nil)
        guard let instance = storyboard.instantiateInitialViewController() as? Self else { fatalError() }
        return instance
    }
}

extension UIViewController: Instantiable {}