Swift Testing deinit not supporting async

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Created Jul ’24

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Why doesn’t deinit support async? At the end of a test, I want to wipe data from HealthKit, and it’s delete function is asynchronous.

Answered by DTS Engineer in 795379022

Why doesn’t deinit support async?

Asynchronous deinitialers are an ongoing topic of conversation on Swift Evolution. The specific proposal was SE-0371 Isolated synchronous deinit, and you can follow links from there to the various discussion threads.

Depending on your specific goals, there may be ways around this. One option is to kick off a new task to do the clean up, and then not wait for it before returning from your deinitialiser.

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Quinn “The Eskimo!” @ Developer Technical Support @ Apple
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Answer 1

DTS Engineer OP

Apple

Jul ’24

Accepted Answer

Why doesn’t deinit support async?

Asynchronous deinitialers are an ongoing topic of conversation on Swift Evolution. The specific proposal was SE-0371 Isolated synchronous deinit, and you can follow links from there to the various discussion threads.

Depending on your specific goals, there may be ways around this. One option is to kick off a new task to do the clean up, and then not wait for it before returning from your deinitialiser.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

1

Answer 2

DTS Engineer OP

Apple

2w

It’s better to reply as a reply, rather than in the comments; see Quinn’s Top Ten DevForums Tips for this and other titbits.

I don't see how it helps the situation of cleaning up with an asynchronous function.

OK. If you post a specific example, I’d be happy to take a look.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

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