[Pitch #2] Concurrency Interoperability with Objective-C

Douglas_Gregor · 2020-12-09T00:05:46.798Z

Hi all,

Here's an updated pitch for Concurrency Interoperability with Objective-C. The first pitch thread provided a bit of feedback, which I've incorporated into this second pitch. The specific changes:

Removed mention of asynchronous handlers, which will be in a separate proposal.
Introduced the swift_async_error Clang attribute to separate out "throwing" behavior from the swift_async attribute.
Added support for "Swift private" to the swift_async attribute.
Tuned the naming heuristics based on feedback to add (e.g) reply , replyTo , completionBlock , and variants.
For the rare case where we match a parameter suffix, append the text prior to the suffix to the base name.
Replaced the -generateCGImagesAsynchronouslyForTimes:completionHandler: example with one from PassKit.
Added a "Future Directions" section about NSProgress .

Doug

wowbagger · 2020-12-09T00:50:46.112Z

Schedule "Objective-C Interoperability with Concurrency" for December 10...22

Does the review still start on December 10? It's only 1.5 days away from this pitch.

Douglas_Gregor · 2020-12-09T01:05:17.052Z

wowbagger:

Does the review still start on December 10? It's only 1.5 days away from this pitch.

That's the intent. The difference in the originally pitched document is very small.

Doug