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If it's possible to build an Objective-C key path for key path expression make sure that its implicitly generated string literal expression has a `String` type. Resolves: rdar://problem/57356196
22 lines
373 B
Swift
22 lines
373 B
Swift
// RUN: %target-swift-frontend(mock-sdk: %clang-importer-sdk) %s -typecheck -verify
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// REQUIRES: objc_interop
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import Foundation
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@objc class A : NSObject {
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@objc var x: Int = 42
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}
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@propertyWrapper
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struct Attr<V> {
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var wrappedValue: V {
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get { fatalError() }
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}
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init(wrappedValue: V, key: KeyPath<A, V>) {}
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}
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class B {
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@Attr(key: \.x) var y: Int = 0 // Ok
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}
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