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This attribute controls whether cross-module access to the declaration needs `@unknown default:` because it's allowed to gain new cases even if the module is non-resilient.
39 lines
1.2 KiB
Swift
39 lines
1.2 KiB
Swift
// RUN: %target-typecheck-verify-swift
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@extensible
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public enum E1 { // Ok
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}
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@extensible // expected-error {{'@extensible' attribute can only be applied to public or package declarations, but 'E2' is fileprivate}}
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fileprivate enum E2 {}
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@extensible // expected-error {{cannot use '@extensible' together with '@frozen'}}
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@frozen
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public enum E3 {
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}
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@extensible // expected-error {{'@extensible' attribute can only be applied to public or package declarations, but 'E4' is internal}}
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@usableFromInline
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enum E4 {}
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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struct Test {
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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var v: Int {
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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get { 0 }
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}
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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var v2: String = ""
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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func test() {}
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@extensible // expected-error {{@extensible may only be used on 'enum' declarations}}
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subscript(a: Int) -> Bool {
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get { false }
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set { }
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}
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}
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