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#swiftlang

11 posts11 participants0 posts today

Is the #SwiftLang Predicate macro used for anything else but #SwiftData? E.g. RealityKit has its own `QueryPredicate`.
It almost seems that Predicate is indeed somewhat useless w/o also standardizing the static metadata property, currently part of SwiftData's `PersistentModel`: developer.apple.com/documentat
As per forums.swift.org/t/keypath-str

Apple Developer DocumentationschemaMetadata | Apple Developer DocumentationThere's never been a better time to develop for Apple platforms.

Y'all wanna see an excessively cute trick LLVM's optimizer can do?

Swift String contains roughly this method:

```
func _fastCStringContents() -> UnsafePointer<UInt8> {
if isASCII {
return contentsPointer
}
return nil
}
```

Where `isASCII` is defined as `(flags & 0x8000_0000_0000_0000) != 0`

Would you expect this to generate (solution in reply)

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A couple weeks ago, I gave a talk at @omt_conf on What's New in Testing. That talk was recorded, but while I wait for it to be edited and published, I published an edited (and updated!) version of my speaker notes from that talk.

There's a lot new in testing since last year. I'm still surprised there wasn't a WWDC video about all the new things you can do.

rachelbrindle.com/2025/06/26/w

rachelbrindle.comWhat's new in Testing, 2025 EditionPilot. Software Engineer. Building an Electric Airplane