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// RUN: %target-swift-frontend -typecheck %s -debug-generic-signatures 2>&1 | %FileCheck %s
struct G<T> {}
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P@
// CHECK-NEXT: Requirement signature: <Self where Self.[P]A == G<Self.[P]B>, Self.[P]B == Self.[P]T.[Q]X, Self.[P]T : Q>
protocol P {
associatedtype A where A == G<T.X>
associatedtype B where B == T.X
associatedtype T : Q
}
protocol Q {
associatedtype X
}
protocol QQ : Q {}
protocol R {
associatedtype A
associatedtype C: QQ where C.X == G<A>
}
// Make sure substitutions which are themselves concrete simplify recursively.
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P1@
// CHECK-NEXT: Requirement signature: <Self where Self.[P1]T == Int, Self.[P1]U == G<Int>>
protocol P1 {
associatedtype T where T == Int
associatedtype U where U == G<T>
}
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P2@
// CHECK-NEXT: Requirement signature: <Self where Self.[P2]T == Int, Self.[P2]U == G<Int>>
protocol P2 {
associatedtype U where U == G<T>
associatedtype T where T == Int
}
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P3@
// CHECK-NEXT: Requirement signature: <Self where Self.[P3]T == G<Int>, Self.[P3]U == Int>
protocol P3 {
associatedtype T where T == G<U>
associatedtype U where U == Int
}
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P4@
// CHECK-NEXT: Requirement signature: <Self where Self.[P4]T == G<Int>, Self.[P4]U == Int>
protocol P4 {
associatedtype U where U == Int
associatedtype T where T == G<U>
}
protocol P5a {
associatedtype T where T == G<U>
associatedtype U
}
// CHECK-LABEL: canonical_concrete_substitutions_in_protocol.(file).P5@
// CHECK-NEXT: Requirement signature: <Self where Self.[P5]T == G<G<Int>>, Self.[P5]U : P5a, Self.[P5]U.[P5a]U == Int>
protocol P5 {
associatedtype T where T == G<U.T>
associatedtype U : P5a where U.U == Int
}
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