SegueHandlerProtocol.swift

// The MIT License (MIT)
//
// Copyright (c) 2017 Andrea Busi
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import UIKit

protocol SegueHandlerProtocol {
   associatedtype SegueIdentifier: RawRepresentable
}

extension SegueHandlerProtocol where Self: UIViewController, SegueIdentifier.RawValue == String {
   
   func performSegue(withIdentifier segueIdentifier: SegueIdentifier, sender: Any?) {
      performSegue(withIdentifier: segueIdentifier.rawValue, sender: sender)
   }
   
   func segueIdentifier(for segue: UIStoryboardSegue) -> SegueIdentifier {
      guard let identifier = segue.identifier, let segueIdentifier = SegueIdentifier(rawValue: identifier) else {
         fatalError("Invalid segue identifier")
      }
      return segueIdentifier
   }
}