Doug Gregor 471f1ee3af [Constraint solver] Disable pattern type "optimization" involving weak types. ...

Fix a regression introduced by moving the type checking of closure
captures into the constraint system. The pattern-type optimization for
initializations was causing inference of a double-optional where there
shouldn't be one, manifesting in a failure involving implicitly
unwrapped optionals and `weak self` captures.

Fixes rdar://problem/67351438.

2020-08-18 20:58:39 -07:00

2.9 KiB

Raw Blame History

View Raw