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4aaec65780
This is something that we'd like to fix to bring in line with tuple conversion, so start warning on cases where it occurs.
37 lines
1.3 KiB
Swift
37 lines
1.3 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 6
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// '-swift-version 6' is currently asserts-only
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// REQUIRES: asserts
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// rdar://85263844 - initializer 'init(_:)' requires the types be equivalent
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func rdar85263844(arr: [(q: String, a: Int)]) -> AnySequence<(question: String, answer: Int)> {
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AnySequence(arr.map { $0 })
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// expected-error@-1 {{initializer 'init(_:)' requires the types '(question: String, answer: Int)' and '(q: String, a: Int)' be equivalent}}
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}
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// Another case for rdar://85263844
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protocol P {
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associatedtype Element
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}
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extension Array : P {}
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public struct S4<T> {
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init<S : P>(_ x: S) where S.Element == T {}
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init(_ x: Int) {}
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}
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extension S4 where T == (outer: Int, y: Int) {
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init(arr: [Int]) {
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// FIXME: This ideally shouldn't compile either, but because of the way we
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// generate constraints for it, it continues to compile. We should fix
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// tuple subtyping for Swift 6 mode to not accept label mismatches.
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self.init(arr.map { (inner: $0, y: $0) })
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// expected-warning@-1 {{tuple conversion from '(inner: Int, y: Int)' to '(outer: Int, y: Int)' mismatches labels}}
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}
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}
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public func rdar85263844_2(_ x: [Int]) -> S4<(outer: Int, y: Int)> {
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// FIXME: Bad error message.
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S4(x.map { (inner: $0, y: $0) }) // expected-error {{type of expression is ambiguous without more context}}
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}
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