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// RUN: not %target-swift-frontend -typecheck %s -debug-generic-signatures 2>&1 | %FileCheck %s
// CHECK-LABEL: .P1@
// CHECK-NEXT: Requirement signature: <Self where Self.[P1]T : P1, Self.[P1]U == Int, Self.[P1]V == Int>
protocol P1 {
associatedtype T : P1
associatedtype U where U == Int
associatedtype V where V == T.U
}
struct G<X> {}
// CHECK-LABEL: .P2@
// CHECK-NEXT: Requirement signature: <Self where Self.[P2]T : P2, Self.[P2]U == G<Self.[P2]X>, Self.[P2]V == G<Self.[P2]T.[P2]X>>
protocol P2 {
associatedtype T : P2
associatedtype U where U == G<X>
associatedtype V where V == T.U
associatedtype X
}
// CHECK-LABEL: .P3@
// CHECK-NEXT: Requirement signature: <Self where Self.[P3]T : P3, Self.[P3]U == G<Self.[P3]X>, Self.[P3]V == G<Self.[P3]X>, Self.[P3]X == Self.[P3]T.[P3]X>
protocol P3 {
associatedtype T : P3
associatedtype U where U == G<X>
associatedtype V where V == T.U, V == G<X>
associatedtype X
}
// CHECK-LABEL: .P4@
// CHECK-NEXT: Requirement signature: <Self where Self.[P4]T : P4, Self.[P4]U == G<Self.[P4]X>, Self.[P4]V == G<Self.[P4]X>, Self.[P4]X == Self.[P4]T.[P4]X>
protocol P4 {
associatedtype T : P4
associatedtype U where U == G<X>
associatedtype V where V == T.U
associatedtype X where X == T.X
}
// We don't split concrete equivalence classes if the signature had an error,
// but we also shouldn't crash in verify() because of an unsplit concrete
// equivalence class.
// CHECK-LABEL: .P4Bad@
// CHECK-NEXT: Requirement signature: <Self where Self.[P4Bad]T : P4Bad, Self.[P4Bad]U == G<Self.[P4Bad]X>, Self.[P4Bad]V == Self.[P4Bad]T.[P4Bad]U>
protocol P4Bad {
associatedtype T : P4Bad
associatedtype U where U == G<X>
associatedtype V where V == T.U
associatedtype X where X == U.X
}
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