#7102: Type family instance overlap accepted in ghci -------------------------------------+------------------------------------- Reporter: exbb2 | Owner: rwbarton Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.4.1 Resolution: | Keywords: TypeFamilies Operating System: Unknown/Multiple | Architecture: Type of failure: GHC accepts | Unknown/Multiple invalid program | Test Case: T7102a, T7102 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D2994 Wiki Page: | -------------------------------------+------------------------------------- Comment (by oerjan): Perhaps the error message for the instance overlap could mention (if in GHCi) that you can get around it by redeclaring the type family. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7102#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler