Exposing an actor to Objective-C with @objc

[rogiervandepol]

Hi! It's possible to mark an actor with @objc to make it available to the Obj-C runtime. Are there any downsides or consequences when doing this with respect to Swift Concurrency? In our project, we have most of our business logic in a shared Kotlin Multiplatform library. I need to inject my actor into this KMP library, which requires me to mark it with @objc.

[AvdLee]

@rogiervandepol I'm honestly not sure, I lack experience with Objective-C and Swift Concurrency. I did find this thread that discussed the topic: https://forums.swift.org/t/need-help-with-swift-concurrency-and-obj-c-interoperability/74910/14

Does that help?

[rogiervandepol]

Thanks! I also found this (already implemented) proposal that describes the Obj-C interoperability and has a section about actors being able to inherit from NSObject. But it doesn't really mention anything about (negative) consequences.
https://github.com/swiftlang/swift-evolution/blob/main/proposals/0297-concurrency-objc.md#actor-classes