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32 lines
664 B
Swift
32 lines
664 B
Swift
// RUN: %target-swift-frontend -dump-ast %s | %FileCheck %s
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// https://github.com/apple/swift/issues/60806
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struct Foo<T> {
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init(_: (T) -> Void) {}
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}
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protocol Bar {}
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enum Baz: Bar {
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case someCase(Int)
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}
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enum NonBarBaz {
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case someCase(Int)
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}
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let _: Foo<Bar> = Foo<Bar> { (a: Bar) -> Void in
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switch a {
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// CHECK: (pattern_is type='any Bar' value_cast Baz
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// CHECK-NEXT: (pattern_enum_element type='Baz' Baz.someCase
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case let .someCase(value) as Baz:
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print(value)
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// expected-warning@-1 {{cast from 'any Bar' to unrelated type 'NonBarBaz' always fails}}
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case let .someCase(value) as NonBarBaz:
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print(value)
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default:
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break
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}
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}
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