#13603: Can't resolve levity polymorphic superclass -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: | LevityPolymorphism, TypeInType Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3489 Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * status: new => patch * differential: => Phab:D3489 * milestone: => 8.2.1 Comment: It works in GHC 8.2 too! Commit b207b536ded40156f9adb168565ca78e1eef2c74 (Generalize kind of the (->) tycon) was what fixed it. I've added a regression test in Phab:D3489. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13603#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler