Xcode 16: Write Blocks Risk Data Races Warnings about realm-swift HOT 6 OPEN

Everything except for the warning from async Realm.init(actor:) should be fixed by #8618. That warning remains because an isolated init currently just crashes the compiler; if that goes unfixed by the time Xcode 16 makes it out of beta we'll probably need to add a Realm.open() static function or something.

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➤ PM Bot commented:

Jira ticket: RCOCOA-2391

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Just a heads up: I updated to 10.52.0 and these warnings are not resolved.

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Here's what I'm seeing in Xcode 16 beta 1 with 10.52.0:

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A thought: I haven't actually switched to Swift 6 language mode in this project because there are a few other blockers unrelated to Realm.

I see some switches on the compiler version in the latest Realm update, so perhaps these are false warnings that evaporate with no errors once Swift 6 is enabled? I'll try that when I get back to my Mac this evening.

If that's the case, the ubiquitous warnings when the Swift version is <6 are going to mislead a lot of people and are worth resolving.

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Ha, I tried building in Swift 6 Language Mode but Xcode just spat out 13 "Swift compiler failed with a non-zero exit code" errors that have absolutely zero context—there's no associated lines or files, so I have no idea what the "errors" are.

This seems like a really bad inflection point in Swift. People are just going to use the 6.0 compiler in 5.0 language mode for the next seven years. Anyway, good luck!

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