Slava Pestov b1177f0413 Sema: Fix bogus "always fails" warnings with casts between generic classes ...

We would misreport a cast from G<T> to G<Int> or vice versa
as always failing, because we were checking for an exact
subtype relationship instead of archetype binding.

Fixes <https://bugs.swift.org/browse/SR-3609>.

2017-04-20 00:37:39 -07:00

1.4 KiB

Raw Blame History

View Raw