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/// |                    World                 |
/// |------------------------------------------|
/// | Module A | Module B | Module C | Module D|
  1. World is a module
  2. World is aware of all modules.
  3. Modules aren't aware of World.
//: ## Demo
struct User: CustomStringConvertible {
let name: String
let age: Int
var description: String { "\(name) (\(age))" }
}
let users = [
User(name: "Bob", age: 22),
@dsabanin
dsabanin / enable-xcode-debug-menu.sh
Last active November 7, 2022 16:17
Enable internal Xcode debug menu in Xcode 11
defaults write com.apple.dt.Xcode ShowDVTDebugMenu -bool YES
sudo mkdir -p /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode
sudo touch /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode/AppleInternal.plist
# Don't forget to restart Xcode
@AliSoftware
AliSoftware / Demo.swift
Last active October 31, 2023 12:25
NestableCodingKey: Nice way to define nested coding keys for properties
struct Contact: Decodable, CustomStringConvertible {
var id: String
@NestedKey
var firstname: String
@NestedKey
var lastname: String
@NestedKey
var address: String
enum CodingKeys: String, NestableCodingKey {
@mdiep
mdiep / diff-values.swift
Created February 4, 2020 13:02
Diff values with Mirror and AnyHashable
import Foundation
// Diff values for better test assertions.
//
// Enums and collections left as an exercise for the reader.
// A difference between two values
struct Difference: CustomStringConvertible {
let path: String
let actual: String
@mdiep
mdiep / diff-values.swift
Last active February 13, 2024 21:01
Diff values with Codable, CaseIterable, and KeyPaths
import Foundation
// Diff objects for better test assertions.
//
// Implemented in a way that:
// 1. The compiler generates as much code as possible
// 2. You'll get a compiler error if you forget a property
//
// Nested support and collections left as an exercise for the reader.
@chriseidhof
chriseidhof / sample.swift
Last active May 11, 2024 01:33
View Inspection
import SwiftUI
struct SizeKey: PreferenceKey {
static func reduce(value: inout CGSize?, nextValue: () -> CGSize?) {
value = value ?? nextValue()
}
}
struct ContentView: View {
@State var width: CGFloat? = nil
var body: some View {
@danielmartin
danielmartin / BetterXcodeJumpToCounterpartSwift.org
Last active March 9, 2024 02:00
Add support for a better Xcode's Jump to Next Counterpart in Swift

If you work on a Swift project that follows the Model-View-ViewModel (MVVM) architecture or similar, you may want to jump to counterpart in Xcode from your view to your model, and then to your view model. (ie. by using Ctrl+Cmd+Up and Ctrl+Cmd+Down).

You can do this in recent versions of Xcode by setting a configuration default.

From a terminal, just type this command and press Enter:

defaults write com.apple.dt.Xcode IDEAdditionalCounterpartSuffixes -array-add "ViewModel" "View"
@mattt
mattt / UIViewControllerPreview.swift
Last active January 8, 2024 23:09
Generic structures to host previews of UIView and UIViewController subclasses.
import UIKit
#if canImport(SwiftUI) && DEBUG
import SwiftUI
struct UIViewControllerPreview<ViewController: UIViewController>: UIViewControllerRepresentable {
let viewController: ViewController
init(_ builder: @escaping () -> ViewController) {
viewController = builder()
}
//
// ContentView.swift
// AnimationTimingCurve
//
// Created by Chris Eidhof on 25.09.19.
// Copyright © 2019 Chris Eidhof. All rights reserved.
//
import SwiftUI