#11714: Kind of (->) type constructor is overly constrained -------------------------------------+------------------------------------- Reporter: bgamari | Owner: Type: feature request | Status: new Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Maybe we can have * Saturated applications of arrow, with its own kinding rule. Actually it's represented as `ForAllTy (Anon ty1) ty2` so looks nothing like `TyConApp`, and there is no `TyCon` involved. * `(->)` with the complicated kind you give above, used for unsaturated partial applications. Now `splitTyConApp` on a `ForallTy (Anon _) _` would have to add those missing kind `RuntimeRep` arguments, but it can do that easily enough. Might that get the best of both worlds? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11714#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler