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9489f10ce1
...instead of just ignoring the errors in certain cases, in service of source compatibility. Swift 3.0 wasn't nearly as strict as checking access control for types because it didn't look at the TypeRepr at all (except to highlight a particular part of the type in diagnostics). It also looked through typealiases in certain cases. Approximate this behavior by running the access checking logic for Types (rather than TypeReprs), and downgrade access violation errors to warnings when the checks disagree. Part of rdar://problem/29855782.
42 lines
2.1 KiB
Swift
42 lines
2.1 KiB
Swift
// RUN: %target-typecheck-verify-swift -swift-version 4
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public struct Pair<A, B> {}
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public struct PublicStruct {
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public struct Inner {}
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internal struct Internal {}
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}
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private typealias PrivateAlias = PublicStruct // expected-note * {{type declared here}}
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public let a0 = nil as PrivateAlias.Inner? // expected-error {{constant cannot be declared public because its type 'PrivateAlias.Inner?' uses a private type}}
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public let a: PrivateAlias.Inner? // expected-error {{constant cannot be declared public because its type uses a private type}}
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public let b: PrivateAlias.Internal? // expected-error {{constant cannot be declared public because its type uses a private type}}
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public let c: Pair<PrivateAlias.Inner, PublicStruct.Internal>? // expected-error {{constant cannot be declared public because its type uses a private type}}
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public let c2: Pair<PublicStruct.Internal, PrivateAlias.Inner>? // expected-error {{constant cannot be declared public because its type uses a private type}}
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public let d: PrivateAlias? // expected-error {{constant cannot be declared public because its type uses a private type}}
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// rdar://problem/21408035
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private class PrivateBox<T> { // expected-note 2 {{type declared here}}
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typealias ValueType = T
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typealias AlwaysFloat = Float
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}
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let boxUnboxInt: PrivateBox<Int>.ValueType = 0 // expected-error {{constant must be declared private or fileprivate because its type uses a private type}}
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let boxFloat: PrivateBox<Int>.AlwaysFloat = 0 // expected-error {{constant must be declared private or fileprivate because its type uses a private type}}
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private protocol PrivateProto {
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associatedtype Inner
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}
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extension PublicStruct: PrivateProto {}
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private class SpecificBox<T: PrivateProto> { // expected-note 2 {{type declared here}}
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typealias InnerType = T.Inner
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typealias AlwaysFloat = Float
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}
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let specificBoxUnboxInt: SpecificBox<PublicStruct>.InnerType = .init() // expected-error {{constant must be declared private or fileprivate because its type uses a private type}}
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let specificBoxFloat: SpecificBox<PublicStruct>.AlwaysFloat = 0 // expected-error {{constant must be declared private or fileprivate because its type uses a private type}}
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