#9858: Typeable instances should be kind-aware -------------------------------------+------------------------------------- Reporter: dreixel | Owner: Type: bug | Status: merge Priority: highest | Milestone: 7.10.2 Component: Compiler | Version: 7.9 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | typecheck/should_fail/T9858a, | should_run/T9858b | Blocking: | Differential Revisions: Phab:D652 -------------------------------------+------------------------------------- Comment (by diatchki): Well, `=>` is not really a type-constructor, but rather a syntactic form. So I don't think it should ever appear alone, or partially applied, in a Haskell program. If we ever promoted it to an actual type-constructor status---which is an interesting idea---I think that we should assign it its own type- constructor and stop reusing the function-space constructor. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9858#comment:98 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler