#13399: Location of `forall` matters with higher-rank kind polymorphism -------------------------------------+------------------------------------- Reporter: crockeea | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): I don't think we have a very consistent story for higher-rank polymorphism at the kind level. The kind of C is {{{ c :: (forall k. k->*) -> Constraint }}} which has higher rank. I'm interested in your use-cases for this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13399#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler