Confusion over YieldingContinuation and AsyncStream

BastianInuk · 2021-06-10T18:49:53.103Z

I've been watching this session about AsyncSequence. Philippe talks about AyncStream at the very and, where the transcript tells me that this will be implemented later.

I am a little confused about the difference between YieldingContinuation and AsyncStream, and when to use which?

xAlien95 · 2021-06-10T20:20:42.983Z

github.com/apple/swift

[Gardening] Remove YieldingContinuation since that approach was disfavored to AsyncStream

apple:main ← phausler:phausler/remove_yieldingcontinuation

opened 05:13PM - 19 May 21 UTC

phausler

+0 -200

Remove YieldingContinuation since that was found to be insufficient to accomplis…h the goals of custom-non-async-sources to be made into AsyncSequences. Fun fact... this was already removed from the CMakeLists.txt so it wasn't being built! So this is not an ABI breaking change and really just a gardening change ;) Resolves rdar://78174691

As far as I know, YieldingContinuation has never shipped.

BastianInuk · 2021-06-10T22:06:20.742Z

That's super weird, my code compiles in first beta with Xcode 13