{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}
module Distribution.Types.PkgconfigDependency
  ( PkgconfigDependency(..)
  ) where

import Distribution.Compat.Prelude
import Prelude ()

import Distribution.Types.PkgconfigName
import Distribution.Types.PkgconfigVersionRange

import Distribution.Parsec
import Distribution.Pretty

import qualified Distribution.Compat.CharParsing as P
import           Text.PrettyPrint           ((<+>))

-- | Describes a dependency on a pkg-config library
--
-- @since 2.0.0.2
data PkgconfigDependency = PkgconfigDependency
                           PkgconfigName
                           PkgconfigVersionRange
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instance Binary PkgconfigDependency
instance Structured PkgconfigDependency
instance NFData PkgconfigDependency where rnf :: PkgconfigDependency -> ()
rnf = PkgconfigDependency -> ()
forall a. (Generic a, GNFData (Rep a)) => a -> ()
genericRnf

instance Pretty PkgconfigDependency where
  pretty :: PkgconfigDependency -> Doc
pretty (PkgconfigDependency PkgconfigName
name PkgconfigVersionRange
ver) =
    PkgconfigName -> Doc
forall a. Pretty a => a -> Doc
pretty PkgconfigName
name Doc -> Doc -> Doc
<+> PkgconfigVersionRange -> Doc
forall a. Pretty a => a -> Doc
pretty PkgconfigVersionRange
ver

instance Parsec PkgconfigDependency where
    parsec :: m PkgconfigDependency
parsec = do
        PkgconfigName
name <- m PkgconfigName
forall a (m :: * -> *). (Parsec a, CabalParsing m) => m a
parsec
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-> PkgconfigDependency -> m PkgconfigDependency
forall a b. (a -> b) -> a -> b
$ PkgconfigName -> PkgconfigVersionRange -> PkgconfigDependency
PkgconfigDependency PkgconfigName
name PkgconfigVersionRange
verRange