AliSoftware

/*:
 This is a concept re-implementation of the @Binding and @State property wrappers from SwiftUI

 The only purpose of this code is to implement those wrappers myself
   just to understand how they work internally and why they are needed,

 ⚠️ This is not supposed to be a reference implementation nor cover all
      subtleties of the real Binding and State types.
    The only purpose of this playground is to show how re-implementing
      them myself has helped me understand the whole thing better

AliSoftware

// #!Swift-1.1
import Foundation


// MARK: - (1) classes

// Solution 1:
//  - Use classes instead of struct
// Issue: Violate the concept of moving model to the value layer
//        http://realm.io/news/andy-matuschak-controlling-complexity/

AliSoftware

struct Contact: Decodable, CustomStringConvertible {
    var id: String
    @NestedKey
    var firstname: String
    @NestedKey
    var lastname: String
    @NestedKey
    var address: String

    enum CodingKeys: String, NestableCodingKey {

AliSoftware

#!/bin/bash

#->Usage: launch_ipa.sh <PATH.app> [DEVICE_TYPE] [IOS_RUNTIME]
#->
#->  Create a new simulator, install the app in it, launch it, wait 20s then kill it.
#->  The main purpose of this script is to just launch an app and let the applicationDidFinishLaunching… callback be called
#->
#->  - [DEVICE_TYPE] the model of simulator to use. See `xcrun simctl list devicetypes` for the full list. Defaults to 'iPhone-6s'
#->                  Note: You just need to provide the last part of the full device ID from
#->                  com.apple.CoreSimulator.SimDeviceType.<DEVICE_TYPE>

AliSoftware

import SwiftUI
import UIKit
import CoreImage
import PlaygroundSupport


extension CIImage {
    convenience init(_ uiImage: UIImage) {
        if let cgImage = uiImage.cgImage {
            self.init(cgImage: cgImage)

AliSoftware

//  Coordinator.swift

import Foundation

public protocol Coordinator: class {
    var components: CoordinatorComponents { get }

    /// Set up here everything that needs to happen just before the Coordinator is presented
    ///
    /// - Parameter modalSetup: A parameter you can use to customize the default mainViewController's

AliSoftware

struct Coordinator {
  let window: UIWindow
  let navCtrl: UINavigationController?
  
  func start() {
    presentWelcomeScreen()
  }
  
  private func presentWelcomeScreen() {
    let vc = WelcomeScreenViewController() // Instanciate from code, XIB, Storyboard, whatever your jam is

AliSoftware

import UIKit
import PlaygroundSupport

// Create a view to display the result in playground
let view = UIView(frame: CGRect(x: 0, y: 0, width: 500, height: 500))
view.backgroundColor = .white
PlaygroundPage.current.liveView = view;

AliSoftware

#!/bin/bash -euo pipefail
#
# Author: O.Halligon
# Jan 2021
#


# Help
if [ "${1:-}" == "-h" -o "${1:-}" == "--help" ]; then
  BASENAME=${0##*/}

AliSoftware

struct CountedSet<Element: Hashable> {
  private var storage: [Element: Int] = [:]
}

/// Creating a CountedSet from a Dictionary or DictionaryLiteral
///
/// let example: CountedSet = ["a": 1, "b": 3, "c": 42]
extension CountedSet: ExpressibleByDictionaryLiteral {
  init(dictionaryLiteral elements: (Element, Int)...) {
    self.storage = Dictionary(uniqueKeysWithValues: elements)