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// RUN: %target-typecheck-verify-swift -swift-version 5
class SomeClass {}
protocol P {
// expected-error@+1 {{'weak' cannot be applied to a property declaration in a protocol}}
weak var foo: SomeClass? { get set }
// expected-error@+1 {{'unowned' cannot be applied to a property declaration in a protocol}}
unowned var foo2: SomeClass { get set }
// expected-error@+2 {{'weak' cannot be applied to a property declaration in a protocol}}
// expected-error@+1 {{'weak' may only be applied to class and class-bound protocol types, not 'Int'}}
weak var foo3: Int? { get set }
// expected-error@+2 {{'unowned' cannot be applied to a property declaration in a protocol}}
// expected-error@+1 {{'unowned' may only be applied to class and class-bound protocol types, not 'Int'}}
unowned var foo4: Int { get set }
var foo9: SomeClass? { get }
}
extension P {
weak var foo5: SomeClass? // expected-error {{extensions must not contain stored properties}}
unowned var foo6: SomeClass // expected-error {{extensions must not contain stored properties}}
weak var foo7: SomeClass? { // Okay
return SomeClass()
}
unowned var foo8: SomeClass { // Okay
return SomeClass()
}
weak var foo9: SomeClass? { // Okay
return nil
}
}
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