adam-fowler

For this to work you need swift-sh installed.

#!/usr/bin/env swift-sh

import ArgumentParser   // apple/swift-argument-parser
import HummingbirdFoundation  // hummingbird-project/hummingbird

struct WebServer: ParsableCommand {
    @Option(name: .shortAndLong)
 var port: Int = 8001

lsavino

DEPRECATED for Xcode 10 🎈

(check out What's New in Swift at 11:40, slide 42)

Whole Module Compilation Optimizations: Why these terms are sometimes misleading

When you look up how to compile swift faster for debug builds, people very earnestly give advice that seems contradictory: you should "try using the whole module optimization flag," and also "never use whole module optimization for debugging". [^1]

This is confusing because some of us are using these two general words:

compilation: "turning text into an executable program"

Otbivnoe

extension UserDefaults {
    subscript<T>(key: String) -> T? {
        get {
            return value(forKey: key) as? T
        }
        set {
            set(newValue, forKey: key)
        }
    }
    

chriseidhof

//
//  main.swift
//  ExtensibleEffects
//
//  Created by Chris Eidhof on 02.01.18.
//  Copyright © 2018 objc.io. All rights reserved.
//

import Foundation

JohnSundell

#!/usr/bin/env bash

# This script switches between the App Store version of Xcode and the beta
# Install it by copying it to /usr/local/bin/xcode-switch and running 'chmod +x' on it (to make it executable)
# Then run it using 'sudo xcode-switch'

if [ "$EUID" -ne 0 ]; then
    echo "xcode-select requires you to run this script as root; 'sudo xcode-switch'"
    exit
fi

steventroughtonsmith

import PlaygroundSupport
import Foundation
import UIKit

Bundle(path: "/System/Library/PrivateFrameworks/DrawingKit.framework")?.load()
let DKInkView = NSClassFromString("DKInkView") as! UIView.Type

extension UIView {
    func newGPUAvailable() -> Bool {

numist

import Darwin // Provides: sin/cos/tan

// memoize function from https://gist.github.com/berkus/8a9e104f8aac5d025eb5
func memoize<T: Hashable, U>( body: ( (T)->U, T )->U ) -> (T)->U {
    var memo = Dictionary<T, U>()
    var result: ((T)->U)!
    result = { x in
        if let q = memo[x] { return q }
        let r = body(result, x)
        memo[x] = r

marciomeschini

• create a new project from Xcode
• open a terminal, go to the project folder
• pod init
• open Podfile, add:

pod 'Fabric'
pod 'Crashlytics'

• pod install
• open workspace

rnapier

import Swift

/*:
    A simple type-erased sequence
*/
let seq = AnySequence([1,2,3])


/*:
    ## Who Needs Types Like That?

oleganza

Async semantics proposal for Swift

Modern Cocoa development involves a lot of asynchronous programming using blocks and NSOperations. A lot of APIs are exposing blocks and they are more natural to write a lot of logic, so we'll only focus on block-based APIs.

Block-based APIs are hard to use when number of operations grows and dependencies between them become more complicated. In this paper I introduce asynchronous semantics and Promise type to Swift language (borrowing ideas from design of throw-try-catch and optionals). Functions can opt-in to become async, programmer can compose complex logic involving asynchronous operations while compiler produces necessary closures to implement that logic. This proposal does not propose new runtime model, nor "actors" or "coroutines".

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