Swift 5.9 release blog post community contributions

alexandersandberg · 2023-08-30T05:58:35.905Z

Hi everyone,

As we’re getting closer to the release of Swift 5.9 we have started putting together the announcement blog post. I’m excited to let you know that this time around we’re also exploring ways of involving the community in this announcement.

This is an opportunity for you, the Swift community, to showcase how you're utilizing the new features and improvements that will ship with Swift 5.9.

We would prefer your contributions to focus on one or a few specific changes, i.e. a deep dive into your favorite new feature or improvement, rather than a high-level overview of everything that's new.

So please provide links below to your blog posts, videos, open-source projects, and other resources that you think do a good job of showcasing something you're excited about in Swift 5.9, and we will consider including them in the blog post.

Please note that we will incorporate community resources into the blog post at the end of the week. However, we encourage you to continue sharing beyond that deadline as this thread will also serve as a nice collection of community resources about the Swift 5.9 release.

We're looking forward to your contributions!

0xTim · 2023-08-30T15:48:08.869Z

One thing that should definitely be called out in the blog post is the addition for proper backtrace support in Swift programs in 5.9. This provides a stack trace in the event of exceptions or fatal errors, with proper support across x86 and ARM platforms

tomerd · 2023-08-30T19:17:26.700Z

cc @al45tair ^^

kishikawakatsumi · 2023-08-31T08:50:55.644Z

Introducing Swift Power Assert. It extensively uses Swift 5.9 macros to provide plenty of information when a unit test fails. There is no need to use many different XCTAssert* functions.

GitHub

GitHub - kishikawakatsumi/swift-power-assert: Power Assert in Swift.

Power Assert in Swift. Contribute to kishikawakatsumi/swift-power-assert development by creating an account on GitHub.

al45tair · 2023-08-31T11:39:11.494Z

One thing that should definitely be called out in the blog post is the addition for proper backtrace support in Swift programs in 5.9. This provides a stack trace in the event of exceptions or fatal errors, with proper support across x86 and ARM platforms

Yep. I'm already talking to folks about adding some information about that.

soumyamahunt · 2023-09-15T15:49:23.497Z

Introducing MetaCodable, it leverages Swift macros to generate Codable implementations with following features:

Custom CodingKey value declaration per variable.
Create flattened model for nested CodingKey values.
Create composition of multiple Codable types.
Provide default value in case of decoding failures.
Custom decoding/encoding strategy and much more.

GitHub

GitHub - SwiftyLab/MetaCodable: Supercharge Swift's Codable implementations...

Supercharge Swift's Codable implementations with macros meta-programming. - GitHub - SwiftyLab/MetaCodable: Supercharge Swift's Codable implementations with macros meta-programming.

Matejkob · 2023-09-15T19:19:57.685Z

Hello everyone,

I hope I'm not too late to the party! I'd be thrilled if you'd consider featuring my side-project in the upcoming Swift 5.9 announcement blog post.

I've developed a tool that leverages Swift Macros to greatly simplify and automate the generation of spies for testing purposes. By simply applying the @Spyable annotation to a protocol, the macro generates a corresponding spy class. This spy class not only adheres to the same interface as the original protocol, but also maintains a history of interactions with its methods and properties.

I believe this tool could be a game-changer for developers aiming to create more maintainable and testable Swift code. I'm aware that there's still a lot of work to be done to make it production-ready, so I would be grateful if it were mentioned in the blog post. This could help new engineers learn about the project and be inspired to contribute. Thank you for considering my contribution, and I'm looking forward to seeing all the other community-driven innovations!

GitHub

GitHub - Matejkob/swift-spyable: Swift macro that simplifies and automates...

Swift macro that simplifies and automates the process of creating spies for testing - GitHub - Matejkob/swift-spyable: Swift macro that simplifies and automates the process of creating spies for te...

compnerd · 2023-09-16T21:36:07.573Z

0xTim:

One thing that should definitely be called out in the blog post is the addition for proper backtrace support in Swift programs in 5.9. This provides a stack trace in the event of exceptions or fatal errors, with proper support across x86 and ARM platforms

I don't think that this work is complete, e.g. there is no windows support.

stephencelis · 2023-09-17T19:01:54.025Z

We'd love to share Macro Testing, a library for testing Swift macros in an ergonomic and exhaustive way. We provide tools on top of SwiftSyntax that automatically inline macro expansions and diagnostics directly into your test source code:

alexandersandberg · 2023-09-18T18:56:53.950Z

Hi everyone,

The blog post has just been published and we have included your contributions. Thanks for sharing these with us! It's very exciting to see what you've been working on.

Swift 5.9 released Announcements

This is a major new release that adds an expressive macro system to the language and introduces support for integrating Swift into C++ codebases through bidirectional interoperability. It also introduces parameter packs, an improved expression evaluator while debugging, enhanced crash handling, Windows platform improvements, and more. Read on for a deep dive into changes to the language, standard library, tooling, platform support, and next steps for getting started with Swift 5.9. Thank yo…

Finagolfin · 2024-02-02T16:04:16.724Z

I just saw this blog post about a typestate design pattern using the new move-only features in Swift 5.9, linked from lobste.rs, thought others may like reading it too.