#11334: GHC panic when calling typeOf on a promoted data constructor -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: Type: bug | Status: new Priority: high | Milestone: 8.0.1 Component: Compiler (Type | Version: 8.1 checker) | Resolution: | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1757 Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * differential: => Phab:D1757 Comment: I still haven't figured out what's going on with `typeOf (Proxy :: Proxy 'Compose)`, but we can at least be comforted by the fact that executing it wasn't possible before GHC 8.0, since `Compose` is poly-kinded. The "regression" here is that `*` now shows up as `TYPE 'Lifted`, which I don't think is desirable. I've opened Phab:D1757 to fix that. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11334#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler