#15654: Use deriving Functor in the codebase -------------------------------------+------------------------------------- Reporter: monoidal | Owner: (none) Type: task | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.4.3 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- In many places in compiler/ we manually define a Functor instance (`git grep "instance Functor"` shows 60). I think we could switch to `deriving` in most (or all?) cases. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15654 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler