Sema: Fix ConstraintSystem::getTypeOfMemberReference() for protocol typealiases #18465
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slavapestov
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Aug 2, 2018
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| typealias Amb = Amb1 & Amb2 | ||
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| let _: Int.Type = Amb.T.self |
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@AnthonyLatsis Note that this case should always be accepted -- I'm disambiguating the return type of the member access. However, I'm surprised that without the type constraint, Amb.T just picks a random result from the overload set. Maybe @xedin has ideas.
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Reported in https://forums.swift.org/t/reconsider-how-type-aliases-are-used-within-protocols-and-their-extensions/11965/18?u=slava_pestov