dequeable.swift

public protocol Dequeueable {
    static func id() -> String
    static func hasNib() -> Bool
}

public extension UITableView {
    func getCell<T: Dequeueable>(forType: T.Type) -> T? {
        return dequeueReusableCell(withIdentifier: T.id()) as? T
    }

    func registerCell(withType cType: Dequeueable.Type) {
        registerCells(withTypes: [cType])
    }

    func registerCells(withTypes cType: [Dequeueable.Type]) {
        for ty in cType {
            if ty.hasNib() {
                register(UINib(nibName: ty.id(), bundle: Bundle.main), forCellReuseIdentifier: ty.id())
            } else {
                if let t = ty as? AnyClass {
                    register(t, forCellReuseIdentifier: ty.id())
                }
            }
        }

    }
}