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33 lines
1.6 KiB
Swift
33 lines
1.6 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 4 -print-diagnostic-groups
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func flatMapOnSequence<
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S : Sequence
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>(xs: S, f: (S.Element) -> S.Element?) {
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_ = xs.flatMap(f) // expected-warning {{'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value [availability_deprecated]}} expected-note {{compactMap}}
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}
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func flatMapOnLazySequence<
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S : LazySequenceProtocol
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>(xs: S, f: (S.Element) -> S.Element?) {
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_ = xs.flatMap(f) // expected-warning {{'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value [availability_deprecated]}} expected-note {{compactMap}}
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}
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func flatMapOnLazyCollection<
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C : LazyCollectionProtocol
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>(xs: C, f: (C.Element) -> C.Element?) {
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_ = xs.flatMap(f) // expected-warning {{'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value [availability_deprecated]}} expected-note {{compactMap}}
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}
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func flatMapOnLazyBidirectionalCollection<
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C : LazyCollectionProtocol & BidirectionalCollection
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>(xs: C, f: (C.Element) -> C.Element?)
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where C.Elements : BidirectionalCollection {
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_ = xs.flatMap(f) // expected-warning {{'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value [availability_deprecated]}} expected-note {{compactMap}}
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}
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func flatMapOnCollectionOfStrings<
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C : Collection
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>(xs: C, f: (C.Element) -> String?) {
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_ = xs.flatMap(f) // expected-warning {{'flatMap' is deprecated: Please use compactMap(_:) for the case where closure returns an optional value [availability_deprecated]}} expected-note {{compactMap}}
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}
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