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19 lines
1.0 KiB
Swift
19 lines
1.0 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 4
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// Generate a swift 4 compatible warning if ownership is specified in a protocol
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class SomeClass {}
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protocol P {
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// expected-warning@+1 {{'weak' cannot be applied to a property declaration in a protocol; this is an error in Swift 5}}
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weak var foo: SomeClass? { get set }
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// expected-warning@+1 {{'unowned' cannot be applied to a property declaration in a protocol; this is an error in Swift 5}}
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unowned var foo2: SomeClass { get set }
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// expected-warning@+2 {{'weak' cannot be applied to a property declaration in a protocol; this is an error in Swift 5}}
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// expected-error@+1 {{'weak' may only be applied to class and class-bound protocol types, not 'Int'}}
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weak var foo3: Int? { get set }
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// expected-warning@+2 {{'unowned' cannot be applied to a property declaration in a protocol; this is an error in Swift 5}}
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// expected-error@+1 {{'unowned' may only be applied to class and class-bound protocol types, not 'Int'}}
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unowned var foo4: Int { get set }
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}
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