Gave my first and only conference talk this year at #swiftCon in Berlin.
Honestly, didn't expect such a huge turnout and Q&A engagement for a fairly obscure and code-heavy topic. I feel incredibly grateful and energised! Happy to see European #swiftlang community going as strong as ever💪

A new Swift compiler-design thread explores type-based lifetime scopes for ~Escapable values. The design aims to infer many scope arguments. Still compiler design, not a shipped feature. #SwiftLang

https://forums.swift.org/t/scope-restrictions/89944

Swift optional binding is more than a nil check. It creates a safe local value in the part of the code where Swift knows it exists.

#SwiftLang #MoS

https://ivantokar.com/posts/optional-binding-turn-an-optional-into-a-value

Swift 6.4 can fail to statically link Foundation on Linux. A fresh SwiftPM plugin report reproduced it, and the issue is already tracked with a fix expected in the next release branch. #SwiftLang #ServerSideSwift

https://forums.swift.org/t/static-linking-issue-using-swift-6-4-0-on-linux/89913

Swift 6.4 can fail to statically link Foundation on Linux. A fresh SwiftPM plugin report reproduced it, and the issue is already tracked with a fix expected in the next release branch.

https://forums.swift.org/t/static-linking-issue-using-swift-6-4-0-on-linux/89913

#SwiftLang #ServerSideSwift

Swift's Decimal may get modern APIs for rounding, scale, conversions and more. A key detail: arithmetic and rounding can happen in one operation, avoiding double rounding. Still a pitch.

https://forums.swift.org/t/pitch-additional-apis-for-decimal/89915

#SwiftLang

Swift `guard` is more than a shorter `if`.

It says: this must be true for the current scope to continue. If execution gets past it, Swift knows the requirement was met, and successful optional bindings stay available.

https://ivantokar.com/posts/guard-keep-the-main-path-flat

#SwiftLang #MoS

The following article details when you can replace closures with key paths in Swift code:

https://www.sagarunagar.com/blog/replacing-closures-with-key-paths-swift/

#SwiftLang

Nuke can share in-flight downloads and processing across image requests while each caller keeps its own cancellation and priority.

I looked at how its task pools and stage-specific keys make that work.

https://ivantokar.com/posts/nuke-coalescing-image-work-across-swift-concurrency

#SwiftLang

Swift is reviewing Span.init(ofOne:): a span over one value. It lets Span-based APIs handle a single value without allocating a temporary collection or falling back to unsafe buffer code.

https://forums.swift.org/t/se-0551-span-over-a-single-value/89715

#SwiftLang

A new Swift pitch adds bulk updates to MutableSpan: copy, repeat and move elements without dropping to unsafe buffers. For bitwise-copyable values, copying can lower to memcpy. Pitch only.

https://forums.swift.org/t/pitch-bulk-update-operations-for-mutablespan-and-mutablerawspan/89843

#SwiftLang

Just one week to @swiftleeds.co.uk !! Any one else going?

#swiftlang #swift #IOSDev #conference

A Swift 6.4 Linux report shows a changed working directory breaking a macro that reads a relative file. Not confirmed as a general bug yet.

https://forums.swift.org/t/psa-swift-6-4-0-breaks-non-inlined-macros-from-reading-from-disk-on-linux/89862

#SwiftLang

Swift Subprocess may expose CPU time and peak memory per child process. Subprocess owns the lifecycle point where this data can be collected reliably.

https://forums.swift.org/t/pitch-subprocess-reporting-the-cpu-time-and-peak-memory-of-terminated-child-processes/89863

#SwiftLang

SE-0550 changed during review: Swift's proposed per-function sanitizer control is now @instrumentation(disable: ...), with nested closures/local functions inheriting it. The review is extended to Oct 8.

https://forums.swift.org/t/se-0550-nosanitize-attribute-for-functions/89593

#SwiftLang

2 Swift Evolution proposals changed status this week.

The tracker checks the official metadata daily and keeps a readable history, so you don't have to monitor every proposal manually.

swiftlee-weekly.com/swift-evolut...

#swiftlang #iosdev

SE-0554 proposes deployment-target conditional compilation for Swift: compile code based on the app's minimum OS target, rather than runtime availability.

https://forums.swift.org/t/se-0554-deployment-target-conditional-compilation/89822

#SwiftLang

Developing cloud services in Swift (#swiftlang) just got a major boost, with extensive (I mean, really an absurdly large number of APIs) Google SDK support - cloud.google.com/blog/topics/...

Lean on swiftly to install a toolchain, and then lean on the Google Cloud SDKs they've just made available!

Swift Collections' Deque hides a ring buffer behind familiar Swift collection semantics.

A source-level look at indexing, split storage and copy-on-write.

https://ivantokar.com/posts/swift-collections-why-deque-uses-a-ring-buffer

#SwiftLang