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120 lines
3.6 KiB
Swift
120 lines
3.6 KiB
Swift
// RUN: %target-typecheck-verify-swift
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func bet() where A : B {} // expected-error {{'where' clause cannot be attached to a non-generic declaration}}
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typealias gimel where A : B // expected-error {{'where' clause cannot be attached to a non-generic declaration}}
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// expected-error@-1 {{expected '=' in type alias declaration}}
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class dalet where A : B {} // expected-error {{'where' clause cannot be attached to a non-generic declaration}}
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protocol he where A : B { // expected-error {{use of undeclared type 'A'}}
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// expected-error@-1 {{use of undeclared type 'B'}}
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associatedtype vav where A : B // expected-error{{use of undeclared type 'A'}}
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// expected-error@-1 {{use of undeclared type 'B'}}
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}
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struct Lunch<T> {
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struct Dinner<U> {
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var leftovers: T
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var transformation: (T) -> U
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}
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}
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class Deli<Spices> {
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class Pepperoni {}
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struct Sausage {}
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}
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struct Pizzas<Spices> {
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class NewYork {
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}
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class DeepDish {
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}
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}
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class HotDog {
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}
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struct Pepper {}
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struct ChiliFlakes {}
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func eatDinnerConcrete(d: Pizzas<ChiliFlakes>.NewYork,
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t: Deli<ChiliFlakes>.Pepperoni) {
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}
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func eatDinnerConcrete(d: Pizzas<Pepper>.DeepDish,
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t: Deli<Pepper>.Pepperoni) {
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}
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func badDiagnostic1() {
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_ = Lunch<Pizzas<Pepper>.NewYork>.Dinner<HotDog>(
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leftovers: Pizzas<ChiliFlakes>.NewYork(), // expected-error {{cannot convert value of type 'Pizzas<ChiliFlakes>.NewYork' to expected argument type 'Pizzas<Pepper>.NewYork'}}
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transformation: { _ in HotDog() })
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}
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func badDiagnostic2() {
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let firstCourse = Pizzas<ChiliFlakes>.NewYork()
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var dinner = Lunch<Pizzas<ChiliFlakes>.NewYork>.Dinner<HotDog>(
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leftovers: firstCourse,
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transformation: { _ in HotDog() })
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let topping = Deli<Pepper>.Pepperoni()
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eatDinnerConcrete(d: firstCourse, t: topping)
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// expected-error@-1 {{cannot invoke 'eatDinnerConcrete' with an argument list of type '(d: Pizzas<ChiliFlakes>.NewYork, t: Deli<Pepper>.Pepperoni)'}}
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// expected-note@-2 {{overloads for 'eatDinnerConcrete' exist with these partially matching parameter lists: (d: Pizzas<ChiliFlakes>.NewYork, t: Deli<ChiliFlakes>.Pepperoni), (d: Pizzas<Pepper>.DeepDish, t: Deli<Pepper>.Pepperoni)}}
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}
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// Real error is that we cannot infer the generic parameter from context
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func takesAny(_ a: Any) {}
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func badDiagnostic3() {
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takesAny(Deli.self) // expected-error {{argument type 'Deli<_>.Type' does not conform to expected type 'Any'}}
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}
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// Crash with missing nested type inside concrete type
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class OuterGeneric<T> {
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class InnerGeneric<U> where U:OuterGeneric<T.NoSuchType> {
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// expected-error@-1 {{'NoSuchType' is not a member type of 'T'}}
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func method() {
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_ = method
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}
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}
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}
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// Crash with missing types in requirements.
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protocol P1 {
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associatedtype A where A == ThisTypeDoesNotExist
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// expected-error@-1{{use of undeclared type 'ThisTypeDoesNotExist'}}
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associatedtype B where ThisTypeDoesNotExist == B
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// expected-error@-1{{use of undeclared type 'ThisTypeDoesNotExist'}}
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associatedtype C where ThisTypeDoesNotExist == ThisTypeDoesNotExist
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// expected-error@-1 2{{use of undeclared type 'ThisTypeDoesNotExist'}}
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}
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// Diagnostic referred to the wrong type - <rdar://problem/33604221>
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protocol E { associatedtype XYZ }
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class P<N> {
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func q<A>(b:A) where A:E, N : A.XYZ { return }
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// expected-error@-1 {{type 'N' constrained to non-protocol, non-class type 'A.XYZ'}}
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}
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// SR-5579
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protocol Foo {
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associatedtype Bar where Bar.Nonsense == Int // expected-error{{'Nonsense' is not a member type of 'Self.Bar'}}
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}
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protocol Wibble : Foo where Bar.EvenMoreNonsense == Int { } // expected-error{{'EvenMoreNonsense' is not a member type of 'Self.Bar'}}
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