Doug Gregor cd52e2d4e5 Fix ABI mismatch involving Sendable-refining protocols and deployment targets ...

A change to the way we determined whether a protocol conformance is
"dependent" for marker protocols caused an ABI break for
Sendable-refining protocols built with pre-6.0 Swift compilers. The
fix for this issue (https://github.com/swiftlang/swift/pull/75769)
gated the change on deployment target.

The deployment target change fixed the original problem, then caused a
related issue when a project mixes deployment targets (pre-6.0 and
6.0+) with non-resilient protocols. Exempt non-resilient protocols from
this change so we get consistent behavior.

Fixes rdar://134953989.

2024-09-10 11:40:50 -07:00

261 B

Raw Permalink Blame History

View Raw