#12792: Wrong error message when using a data type as a class instance head -------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple error/warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by simonpj): * keywords: newcomer => Comment: I sort of agree but it's architecturally difficult. * The "not a visible method" message comes from the renamer * The kind error comes from the type checker It's not clear to me how to make the latter suppress the former. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12792#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler