
#10114: Kind mismatches with AnyK in rank-2 types -------------------------------------+------------------------------------- Reporter: cam | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.4 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by goldfire): What about {{{ type T k2 = forall k1 (f :: k1 -> k2) (a :: k1). f a }}} That makes `T :: forall k2. k2`. That's a well-formed kind, but it looks awfully like the type of `undefined`... but I don't know if that's a problem. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10114#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler