{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric      #-}

module Distribution.Types.LibraryVisibility(
    LibraryVisibility(..),
) where

import Distribution.Compat.Prelude
import Prelude ()

import Distribution.Parsec
import Distribution.Pretty

import qualified Distribution.Compat.CharParsing as P
import qualified Text.PrettyPrint                as Disp

-- | Multi-lib visibility
--
-- @since 3.0.0.0
--
data LibraryVisibility
      -- | Can be depenendent from other packages
    = LibraryVisibilityPublic
      -- | Internal library, default
    | LibraryVisibilityPrivate
    deriving ((forall x. LibraryVisibility -> Rep LibraryVisibility x)
-> (forall x. Rep LibraryVisibility x -> LibraryVisibility)
-> Generic LibraryVisibility
forall x. Rep LibraryVisibility x -> LibraryVisibility
forall x. LibraryVisibility -> Rep LibraryVisibility x
forall a.
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$cfrom :: forall x. LibraryVisibility -> Rep LibraryVisibility x
Generic, Int -> LibraryVisibility -> ShowS
[LibraryVisibility] -> ShowS
LibraryVisibility -> String
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-> (LibraryVisibility -> String)
-> ([LibraryVisibility] -> ShowS)
-> Show LibraryVisibility
forall a.
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showList :: [LibraryVisibility] -> ShowS
$cshowList :: [LibraryVisibility] -> ShowS
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showsPrec :: Int -> LibraryVisibility -> ShowS
$cshowsPrec :: Int -> LibraryVisibility -> ShowS
Show, ReadPrec [LibraryVisibility]
ReadPrec LibraryVisibility
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/= :: LibraryVisibility -> LibraryVisibility -> Bool
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Eq, Typeable, Typeable LibraryVisibility
DataType
Constr
Typeable LibraryVisibility
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-> Data LibraryVisibility
LibraryVisibility -> DataType
LibraryVisibility -> Constr
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-> LibraryVisibility -> LibraryVisibility
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Data)

instance Pretty LibraryVisibility where
    pretty :: LibraryVisibility -> Doc
pretty LibraryVisibility
LibraryVisibilityPublic  = String -> Doc
Disp.text String
"public"
    pretty LibraryVisibility
LibraryVisibilityPrivate = String -> Doc
Disp.text String
"private"

instance Parsec LibraryVisibility where
  parsec :: m LibraryVisibility
parsec = do
    String
name <- (Char -> Bool) -> m String
forall (m :: * -> *). CharParsing m => (Char -> Bool) -> m String
P.munch1 Char -> Bool
isAlpha
    case String
name of
      String
"public"  -> LibraryVisibility -> m LibraryVisibility
forall (m :: * -> *) a. Monad m => a -> m a
return LibraryVisibility
LibraryVisibilityPublic
      String
"private" -> LibraryVisibility -> m LibraryVisibility
forall (m :: * -> *) a. Monad m => a -> m a
return LibraryVisibility
LibraryVisibilityPrivate
      String
_         -> String -> m LibraryVisibility
forall (m :: * -> *) a. MonadFail m => String -> m a
fail (String -> m LibraryVisibility) -> String -> m LibraryVisibility
forall a b. (a -> b) -> a -> b
$ String
"Unknown visibility: " String -> ShowS
forall a. [a] -> [a] -> [a]
++ String
name

instance Binary LibraryVisibility
instance NFData LibraryVisibility where rnf :: LibraryVisibility -> ()
rnf = LibraryVisibility -> ()
forall a. (Generic a, GNFData (Rep a)) => a -> ()
genericRnf

instance Semigroup LibraryVisibility where
    LibraryVisibility
LibraryVisibilityPrivate <> :: LibraryVisibility -> LibraryVisibility -> LibraryVisibility
<> LibraryVisibility
LibraryVisibilityPrivate = LibraryVisibility
LibraryVisibilityPrivate
    LibraryVisibility
_                        <> LibraryVisibility
_                        = LibraryVisibility
LibraryVisibilityPublic

instance Monoid LibraryVisibility where
    mempty :: LibraryVisibility
mempty  = LibraryVisibility
LibraryVisibilityPrivate
    mappend :: LibraryVisibility -> LibraryVisibility -> LibraryVisibility
mappend = LibraryVisibility -> LibraryVisibility -> LibraryVisibility
forall a. Semigroup a => a -> a -> a
(<>)