ghc-deriving-compat
Backports of GHC deriving extensions
Provides Template Haskell functions that mimic deriving extensions that were introduced or modified in recent versions of GHC. Currently, the following typeclasses/extensions are covered: * Deriving 'Bounded' * Deriving 'Enum' * Deriving 'Ix' * Deriving 'Eq', 'Eq1', and 'Eq2' * Deriving 'Ord', 'Ord1', and 'Ord2' * Deriving 'Read', 'Read1', and 'Read2' * Deriving 'Show', 'Show1', and 'Show2' * 'DeriveFoldable' * 'DeriveFunctor' * 'DeriveTraversable' See the "Data.Deriving" module for a full list of backported changes. Note that some recent GHC typeclasses/extensions are not covered by this package: * 'DeriveDataTypeable' * 'DeriveGeneric', which was introducted in GHC 7.2 for deriving 'Generic' instances, and modified in GHC 7.6 to allow derivation of 'Generic1' instances. Use 'Generics.Deriving.TH' from '<http://hackage.haskell.org/package/generic-deriving generic-deriving>' to derive 'Generic(1)' using Template Haskell. * 'DeriveLift', which was introduced in GHC 8.0 for deriving 'Lift' instances. Use 'Language.Haskell.TH.Lift' from '<http://hackage.haskell.org/package/th-lift th-lift>' to derive 'Lift' using Template Haskell. * The 'Bifunctor' typeclass, which was introduced in GHC 7.10, as well as the 'Bifoldable' and 'Bitraversable' typeclasses, which were introduced in GHC 8.2. Use 'Data.Bifunctor.TH' from '<http://hackage.haskell.org/package/bifunctors bifunctors>' to derive these typeclasses using Template Haskell.
BSD-3-Clause