lattner

Async/Await for Swift

• Proposal: SE-XXXX
• Authors: Chris Lattner, Joe Groff

Introduction

Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.

This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.

erica

Introducing the !! "Unwrap or Die" operator to the Swift Standard Library

• Proposal: SE-TBD
• Author(s): Ben Cohen, Erica Sadun, Paul Cantrell and several other folk
• Status: tbd
• Review manager: tbd

Introduction

This proposal introduces an annotated forced unwrapping operator to the Swift standard library, completing the ?, ??, and ! family with !!. The "unwrap or die" operator provides text feedback on failed unwraps, to support defensive programming. This operator is commonly implemented in the larger Swift Community and should be considered for official adoption.

skreutzberger

Senior Swift Backend Developer (Freelance, 100% Remote)

I am searching experienced backend developers (freelance, remote) with a ❤️ for Swift for Moonshot Energy, the world’s first AI-driven renewable energy company located in Germany. Moonshot Energy is financially backed by Innogy SE, one of Europe's largest energy providers.

At Moonshot you will play a major role in making the world greener, the future brighter and energy distribution smarter by using latest technologies like server-side Swift, microservices, artificial intelligence 🤖 and machine learning and new interfaces like chatbots and dialog-based systems (NLP).

Since our team is working on European timezones it would be good if you would live in the EU or if you are an early bird living in US-East 🇪🇺🇺🇸.

Your job:

• build our internal microservices

steipete

# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)

# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport

# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions

# (A similar approach works for older versions too, just change the version number after DeviceSupport)

JadenGeller

// Basically, these are if and else statements respectively
// without the opposite clause

func when(test: @autoclosure () -> Bool, action: () -> ()) {
    if test() { action() }
}

func unless(test: @autoclosure () -> Bool, action: () -> ()) {
    if !test() { action() }
}