#15961: TH 'Lift' instance for 'NonEmpty' -------------------------------------+------------------------------------- Reporter: fr33domlover | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: 8.6.3 Component: Template Haskell | Version: 8.6.2 Resolution: | Keywords: lift, | instance, nonempty Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by harpocrates): Please avoid using the default `Data` implementations of `Lift` (or at least explicitly define `lift = liftData`). For existing code, I would use `-XStandaloneDeriving` and `-XDeriveLift`. {{{ deriving instance Lift a => Lift (NonEmpty a) }}} I agree we should put instances in `template-haskell` now that `NonEmpty` is in `base`. I'll put up a patch and we can see what others think. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15961#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler