tomlokhorst

import Foundation


let obj = NSNumber(int: 2)

func correct<T>() -> T? {
  if let val = obj as? T {
    println("matching types")
    return val
  }

tomlokhorst

/* Domain model */

// A Profile consists of a person name and an optional avatar
struct Profile {
  let personName: PersonName
  let avatarURL: NSURL?
}


// These are the UX rules for showing a greeting:

tomlokhorst

// We can use Phantom Types to provide strongly typed acces to NSUserDefaults
// Similar to: http://www.objc.io/blog/2014/12/29/functional-snippet-13-phantom-types/


// A key to UserDefaults has a name and phantom type
struct Key<T> {
  let name: String
}

tomlokhorst

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  var window: UIWindow?

  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    print(process(MyFoo()))
    return true
  }

tomlokhorst

/// - returns: `true` when dynamic type is `Equatable` and `==` returns `true`, otherwise `false`.
func areEquatablyEqual(_ lhs: Any, _ rhs: Any) -> Bool {
    func receiveLHS<LHS>(_ typedLHS: LHS) -> Bool {
        guard
            let rhsAsLHS = rhs as? LHS
            else { return false }
        return areEquatablyEqual(typedLHS, rhsAsLHS)
    }
    return _openExistential(lhs, do: receiveLHS)
}

tomlokhorst

//
//  DarwinNotificationCenter.swift
//
//  Created by Nonstrict on 2023-12-07.
//

import Foundation
import Combine

private let center = CFNotificationCenterGetDarwinNotifyCenter()