[6.2][Concurrency] SE-0463: Sendable inference on sync and async variant…
#82674
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…s of imported APIs should match This is a follow-up to swiftlang#82085 which made it so async variant doesn't get `@Sendable` inferred because the proposal specified that inference should happen only on completion handler parameter type of a synchronous variant of an imported API. This runs into implementation issues related to thunking in some cases were async convention expects the type of a completion handler to match exactly for both variants of the imported API. Resolves: rdar://154695053 (cherry picked from commit 30f0fa8)
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@swift-ci please test |
bnbarham
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Jul 1, 2025
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…s of imported APIs should match
Explanation:
This is a follow-up to [ClangImporter] SE-0463: Implement
@Sendableinference exception for global actor isolated functions #82085 which made it so async variant doesn't get@Sendableinferred because the proposal specified that inference should happen only on completion handler parameter type of a synchronous variant of an imported API.This runs into implementation issues related to thunking in some cases were async convention expects the type of a completion handler to match exactly for both variants of the imported API.
Resolves: rdar://154695053
Main Branch PR: [Concurrency] SE-0463:
Sendableinference on sync and async variant… #82673Risk: Low. Brings back to behavior which existed pre- [ClangImporter] SE-0463: Implement
@Sendableinference exception for global actor isolated functions #82085Reviewed By: @DougGregor
Testing: Added new test-cases to the test suite, updated old test-cases.
(cherry picked from commit 30f0fa8)