#15591: Inconsistent kind variable binder visibility between associated and non- associated type families -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.5 Resolution: | Keywords: | TypeApplications, TypeFamilies 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): Let's agree the specification first. In this declaration {{{ class C (a :: Type) where type T2 (x :: f a) }}} Then `a` is `Required` for `C`, but presumably it is only `Specified` for `T2`? And what are the rules for Required/Specified/Inferred for type/class declarations that do not have a CUSK? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15591#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler