#15330: Error message prints invisible kind arguments in a visible matter -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler (Type | Version: 8.4.3 checker) | Resolution: | Keywords: TypeInType Operating System: Unknown/Multiple | Architecture: Type of failure: Poor/confusing | Unknown/Multiple error message | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): How about this: {{{#!hs data Type = ... | AppTy AppTyMode Type Type | ... data AppTyMode = VanillaATM | InvisATM -- | VisDepATM -- for visible dependent application, which will be available outside -- TyConApps with https://github.com/ghc-proposals/ghc- proposals/pull/81 }}} Every `AppTy` then gets tagged, at creation. `IfaceAppTy` naturally would get the same tags. I think `AppTy`s aren't all that common, so the extra word shouldn't be so bad. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15330#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler