AutoC.swift

import Foundation
import UIKit
//1 create view with a title property
class TestView : UIView {
  var title: String?
  var rank: Int?

  init(title: String, rank: Int) {
    self.title = title
    self.rank = rank
    super.init(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
  }
  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
  }
  // 2 create a static func, set title with a function
  static func setMyView (rank: Int, aFunc : () -> Void ) {
    aFunc()
  }
  }
  public class AutoCTest {
  var view : TestView = TestView.init(title: "private", rank: 1)
  // 4 instead, create an autoclosure function
  func setMyView(rank: Int = 5, _ setting: @autoclosure @escaping () -> Void) {
    TestView.setMyView(rank: rank, aFunc: setting)
  }
  func doIt () {
  // 3 set the title with a closure
  // do it the old way
    TestView.setMyView(rank: 5) {
    view.title = "admiral"
  }
  // 5 set the title with an autoclosure
  // do it the new way, use my autoclosure function, no braces required
    setMyView(self.view.title = "captain")
  }
}