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15 lines
542 B
Swift
15 lines
542 B
Swift
// RUN: %target-typecheck-verify-swift
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// https://github.com/apple/swift/issues/50566
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struct Foo<T> {}
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protocol P1 {
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associatedtype A // expected-note {{protocol requires nested type 'A'; add nested type 'A' for conformance}}
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}
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extension Foo: P1 where A : P1 {}
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// expected-error@-1 2{{extension of generic struct 'Foo' has self-referential generic requirements}}
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// expected-note@-2 2{{while resolving type 'A'}}
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// expected-note@-3 4{{through reference here}}
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// expected-error@-4 {{type 'Foo<T>' does not conform to protocol 'P1'}}
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