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a250688a50
If a conformance is found in an imported module as well as the current module, and one of the two conformances is conditionally unavailable on the current deployment target, pick the one that is always available. Fixes <rdar://problem/78633800>.
21 lines
932 B
Swift
21 lines
932 B
Swift
// RUN: %empty-directory(%t)
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// RUN: %target-swift-frontend -emit-module %S/Inputs/conformance_availability_overlapping_other.swift -emit-module-path %t/conformance_availability_overlapping_other.swiftmodule
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// RUN: %target-typecheck-verify-swift -I %t
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// REQUIRES: OS=macosx
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import conformance_availability_overlapping_other
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extension HasUnavailableConformance : P {}
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extension HasConditionallyAvailableConformance : P {}
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extension HasAlwaysAvailableConformance : P {}
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// expected-warning@-1 {{conformance of 'HasAlwaysAvailableConformance' to protocol 'P' was already stated in the type's module 'conformance_availability_overlapping_other'}}
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struct G<T : P> {}
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// None of these should produce a warning about an unavailable conformance.
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func usesConformance(_: G<HasUnavailableConformance>) {}
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func usesConformance(_: G<HasConditionallyAvailableConformance>) {}
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func usesConformance(_: G<HasAlwaysAvailableConformance>) {} |