Give your simulator superpowers

RocketSim: An Essential Developer Tool
as recommended by Apple

Issue 216
Apr 23, 2024

Stay updated with the latest in Swift & SwiftUI

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This week's SwiftLee Weekly covers:
  • A new SwiftUI content margins modifier
  • A way to incrementally adopt Swift Concurrency
  • Swift 6's access level on module imports
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Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST
While working on the next major release of RocketSim (Xcode Build Insights!), I've been solving a common problem: how to track events from within an isolated package? I developed RocketSim Insights in an isolated Swift Package and wanted to avoid creating a tracking package that I would add to all other packages. This week's article describes my solution using SwiftUI's @Environment property wrapper.

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CURATED FROM THE COMMUNITY
This article is full of little gems. Matt explains static vs. dynamic isolation, shares how you can incrementally adopt Swift Concurrency, while also making you feel better about guilty MainActor.run usages.
While it will still take a few months until Swift 6 arrives, there are already a few features we can try out. One of them are module import access levels.
Today, I learned about a new contentMargins modifier in SwiftUI. Thanks to Mecid!
The reduce operator comes in two variants, and I love picking the inout variant for cleaner code. Pol Piella explains how the operator works and how it can result in more performant code.
Custom fonts can make your app stand out, but you should not forget to add Dynamic Type support.

SWIFT EVOLUTION
An overview of last week's Swift Proposal state changes. Make sure to check them out when they're in review, as it's your opportunity to influence the direction of Swift's future.
Returned For RevisionSE-0430`transferring` isolation regions of parameter and result values
Active ReviewSE-0426BitwiseCopyable
ImplementedSE-0220`count(where:)`