#12811: GHC tells me to use RankNTypes when it's already enabled -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Resolution: | Keywords: 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 simonpj): Yes indeed. Perhaps someone can arrange to suppress the suggestion if `RankNTypes` is already on? That would help a bit, by removing the confusing suggestion. But it's hard to come up with a good error message for {{{ a b . c d }}} as a type. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12811#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler