Doug Gregor 5e50ee8560 Add @available attributes on the implicit "extension" for @_nonSendable types ...

`@_nonSendable` on a type effectively desugars to an unavailable
extension that provides (`@unchecked`) conformance to the `Sendable`
protocol. Make sure we copy over platform availability so that the
extension does not promise greater availability than the type it extends.

Fixes rdar://90330588.

2022-03-25 11:01:44 -07:00

1.0 KiB

Raw Blame History

View Raw