import "hint" HLint.Default import "hint" HLint.Dollar import "hint" HLint.Generalise ignore "Use mappend" error "generalize ++" = (++) ==> (<>) -- AMP fallout error "generalize mapM" = mapM ==> traverse error "generalize mapM_" = mapM_ ==> traverse_ error "generalize forM" = forM ==> for error "generalize forM_" = forM_ ==> for_ error "Avoid return" = return ==> pure where note = "return is obsolete as of GHC 7.10" error "use pure" = free . Pure ==> pure error "use wrap" = free . Free ==> wrap error "use extract" = headF . runCofree ==> extract