name:                deriving-compat
version:             0.2
synopsis:            Backports of GHC deriving extensions
description:         Provides Template Haskell functions that mimic deriving
                     extensions that were introduced or modified in recent versions
                     of GHC. Currently, the following extensions are covered:
                     .
                     * @DeriveFoldable@
                     .
                     * @DeriveFunctor@
                     .
                     * @DeriveTraversable@
                     .
                     The following changes have been backported:
                     .
                     * In GHC 8.0, @DeriveFoldable@ was changed to allow folding
                       over data types with existential constraints.
                     .
                     * In GHC 8.0, @DeriveFoldable@ and @DeriveTraversable@ were
                       changed so as not to generate superfluous @mempty@ or @pure@
                       expressions in generated code. As a result, this allows
                       deriving @Traversable@ instances for datatypes with unlifted
                       argument types.
                     .
                     Note that some recent GHC extensions are not covered by this package:
                     .
                     * @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.
homepage:            https://github.com/haskell-compat/deriving-compat
bug-reports:         https://github.com/haskell-compat/deriving-compat/issues
license:             BSD3
license-file:        LICENSE
author:              Ryan Scott
maintainer:          Ryan Scott <ryan.gl.scott@gmail.com>
stability:           Experimental
copyright:           (C) 2015-2016 Ryan Scott
category:            Compatibility
build-type:          Simple
extra-source-files:  CHANGELOG.md, README.md
tested-with:         GHC == 7.0.4
                   , GHC == 7.2.2
                   , GHC == 7.4.2
                   , GHC == 7.6.3
                   , GHC == 7.8.4
                   , GHC == 7.10.3
                   , GHC == 8.0.1
cabal-version:       >=1.10

source-repository head
  type:                git
  location:            https://github.com/haskell-compat/deriving-compat

library
  exposed-modules:     Data.Deriving

                       Data.Foldable.Deriving
                       Data.Functor.Deriving
                       Data.Traversable.Deriving
  other-modules:       Data.Deriving.Internal
                       Data.Functor.Deriving.Internal
                       Paths_deriving_compat
  build-depends:       base             >= 4.3 && < 5
                     , containers       >= 0.1 && < 0.6
                     , ghc-prim
                     , template-haskell >= 2.5 && < 2.12
  hs-source-dirs:      src
  default-language:    Haskell2010
  ghc-options:         -Wall

test-suite spec
  type:                exitcode-stdio-1.0
  main-is:             Spec.hs
  other-modules:       DerivingSpec
  build-depends:       base                >= 4.3   && < 5
                     , base-compat         >= 0.8.1 && < 1
                     , base-orphans        >= 0.5   && < 1
                     , deriving-compat     == 0.2
                     , hspec               >= 1.8
                     , QuickCheck          >= 2     && < 3
                     , transformers        >= 0.2
                     , transformers-compat >= 0.3
  hs-source-dirs:      tests
  default-language:    Haskell2010
  ghc-options:         -Wall