Enable NonIsolatedNonSendableByDefault #3445
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In order to enable uses of `nonisolated(nonsending)` in #3378 without adding this sequence of characters everywhere, this pr enables the upcoming feature `NonIsolatedNonSendableByDefault `
FranzBusch
approved these changes
Nov 13, 2025
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In order to enable uses of
nonisolated(nonsending)in #3378 without adding this sequence of characters everywhere, this pr enables the upcoming featureNonIsolatedNonSendableByDefaultMost of the changes are about adding
next(isolation:)calls, where non existed before and wiring through the isolation level to the underlying next call. To please the compiler, I've also made explicit thatnext()runs on the concurrent executor, by slapping@concurrenton it.Interestingly
nonisolated(nonsending)is not applied to nested function definitions. I applied those manually.