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8e2e625543
This commit changes fixit messages from a question/suggestion to an imperative message for protocol conformances and switch-case. Addresses https://github.com/apple/swift/issues/67510.
120 lines
3.1 KiB
Swift
120 lines
3.1 KiB
Swift
// RUN: %target-typecheck-verify-swift
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// N.B. Validating the pattern binding initializer for `pickMe` used to cause
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// recursive validation of the VarDecl. Check that we don't regress now that
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// this isn't the case.
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public struct Cyclic {
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static func pickMe(please: Bool) -> Int { return 42 }
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public static let pickMe = Cyclic.pickMe(please: true)
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}
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struct Node {}
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struct Parameterized<Value, Format> {
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func please<NewValue>(_ transform: @escaping (_ otherValue: NewValue) -> Value) -> Parameterized<NewValue, Format> {
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fatalError()
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}
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}
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extension Parameterized where Value == [Node], Format == String {
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static var pickMe: Parameterized {
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fatalError()
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}
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}
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extension Parameterized where Value == Node, Format == String {
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static let pickMe = Parameterized<[Node], String>.pickMe.please { [$0] }
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}
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enum Loop: Circle {
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struct DeLoop { }
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}
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protocol Circle {
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typealias DeLoop = Loop.DeLoop
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}
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class Base {
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static func foo(_ x: Int) {}
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}
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class Sub: Base {
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var foo = { () -> Int in
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let x = 42
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// FIXME: Bogus diagnostic
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return foo(1) // expected-error {{cannot convert value of type '()' to closure result type 'Int'}}
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}()
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}
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extension Float {
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static let pickMe: Float = 1
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}
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extension SIMD3 {
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init(_ scalar: Scalar) { self.init(repeating: scalar) }
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}
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extension SIMD3 where SIMD3.Scalar == Float {
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static let pickMe = SIMD3(.pickMe)
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}
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// Test case with circular overrides
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protocol P {
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associatedtype A
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// expected-note@-1 {{protocol requires nested type 'A'; add nested type 'A' for conformance}}
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func run(a: A)
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}
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class C1 {
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func run(a: Int) {}
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}
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class C2: C1, P {
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// expected-note@-1 {{through reference here}}
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override func run(a: A) {}
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// expected-error@-1 {{circular reference}}
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// expected-note@-2 {{while resolving type 'A'}}
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// expected-note@-3 2{{through reference here}}
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}
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// Another crash to the above
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open class G1<A> {
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open func run(a: A) {}
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}
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class C3: G1<A>, P {
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// expected-error@-1 {{type 'C3' does not conform to protocol 'P'}}
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// expected-error@-2 {{cannot find type 'A' in scope}}
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// expected-note@-3 {{through reference here}}
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override func run(a: A) {}
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// expected-error@-1 {{method does not override any method from its superclass}}
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// expected-error@-2 {{circular reference}}
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// expected-note@-3 2 {{through reference here}}
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// expected-note@-4 {{while resolving type 'A'}}
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}
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// Another case that triggers circular override checking.
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protocol P1 {
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associatedtype X = Int
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init(x: X)
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}
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class C4 {
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required init(x: Int) {}
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}
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class D4 : C4, P1 { // expected-note 3 {{through reference here}}
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required init(x: X) { // expected-error {{circular reference}}
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// expected-note@-1 {{while resolving type 'X'}}
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// expected-note@-2 2{{through reference here}}
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super.init(x: x)
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}
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}
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// https://github.com/apple/swift/issues/54662
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// N.B. This used to compile in 5.1.
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protocol P_54662 { }
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class C_54662 { // expected-note {{through reference here}}
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typealias Nest = P_54662 // expected-error {{circular reference}} expected-note {{through reference here}}
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}
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extension C_54662: C_54662.Nest { }
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