SwiftでGenericsを使ったTableViewの実装 ref: https://qiita.com/kfurue/items/caf4e866891b9b8a7bdc

file0.swift

import Foundation
import UIKit

protocol Nibable: NSObjectProtocol {
    static var nibName: String { get }
    static var nib: UINib { get }
}

extension Nibable {
    static var nibName: String {
        return String(describing: self)
    }
    static var nib: UINib {
        return UINib(nibName: nibName, bundle: Bundle(for: self))
    }
}

file1.swift

import Foundation
import UIKit

extension UITableView {
    func register<T: UITableViewCell>(_ cellType: T.Type) where T: Nibable {
        register(T.nib, forCellReuseIdentifier: T.identifier)
    }

    func register<T: UITableViewCell>(_ cellType: T.Type) {
        register(T.self, forCellReuseIdentifier: T.identifier)
    }

    func dequeueReusableCell<T: UITableViewCell>(with cellType: T.Type,
                                                 for indexPath: IndexPath) -> T {
        // swiftlint:disable force_cast
        return dequeueReusableCell(withIdentifier: T.identifier, for: indexPath) as! T
        // swiftlint:enable force_cast
    }
}

file2.swift

import Foundation
import UIKit

extension UITableViewCell {
    static var identifier: String {
        return String(describing: self)
    }
}

file3.swift

import UIKit

class MicropostTableViewCell: UITableViewCell, Nibable {
    func configure(micropost: Micropost) {
        textLabel?.text? = micropost.content
        detailTextLabel?.text? = String(micropost.userId)
    }

}

file4.swift

viewModel.feeds.asDriver().drive(
    feedTableView.rx.items(cellIdentifier: MicropostTableViewCell.identifier,
                            cellType: MicropostTableViewCell.self),
    curriedArgument: { row, micropost, cell in
        cell.configure(micropost: micropost)
}).disposed(by: disposeBag)