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Add regression test for rdar://148357926 #81476

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Merged
merged 1 commit into from
May 14, 2025
Merged

Add regression test for rdar://148357926 #81476

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26 changes: 26 additions & 0 deletions test/Constraints/opened_existentials.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -565,3 +565,29 @@ do {
types.assertTypesAreEqual()
}
}

struct G<A>: PP3 {}

protocol PP1 {
associatedtype A
}

extension PP1 {
func f(p: any PP2<G<Self.A>>) {
p.g(t: self)
}
}

protocol PP2<B> {
associatedtype A
associatedtype B: PP3 where Self.B.A == Self.A
}

extension PP2 {
func g<T: PP1>(t: T) where Self.B == G<T.A> {}
}

protocol PP3 {
associatedtype A
}