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To allow us to start testing language changes tied to a future Swift 6 mode without actually *shipping* a Swift 6 mode to customers who might accidentally use it before it's ready. This commit also adds parallel tests for a number of already existing (but untested) Swift 6 mode behaviors.
21 lines
860 B
Swift
21 lines
860 B
Swift
// RUN: %target-typecheck-verify-swift -swift-version 6
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// REQUIRES: asserts
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// Note: In Swift >= 6 mode this would become an error.
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func test_subscript_accepts_type_name_argument() {
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struct A {
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subscript(a: A.Type) -> Int { get { 42 } }
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}
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func test(a: A, optA: A?) {
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let _ = a[A] // expected-error {{expected member name or constructor call after type name}}
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// expected-note@-1 {{add arguments after the type to construct a value of the type}} {{16-16=()}}
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// expected-note@-2 {{use '.self' to reference the type object}} {{16-16=.self}}
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let _ = optA?[A] // expected-error {{expected member name or constructor call after type name}}
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// expected-note@-1 {{add arguments after the type to construct a value of the type}} {{20-20=()}}
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// expected-note@-2 {{use '.self' to reference the type object}} {{20-20=.self}}
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}
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}
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