#9069: -XDeriveTraversable should imply -XDeriveFunctor and -XDeriveFoldable ------------------------------------+------------------------------------- Reporter: sjoerd_visscher | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- In the discussion in #2953 it was concluded that it would be best to have separate flags for deriving Functor, Foldable and Traversable. I agree with that conclusion, but it seems that it wasn't considered to have -XDeriveTraversable imply -XDeriveFunctor and -XDeriveFoldable. I can't think of a reason not to want that. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9069 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler