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

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

import Prelude ()
import Distribution.Compat.Prelude

import Distribution.Pretty
import Distribution.Parsec

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

data ExecutableScope = ExecutablePublic
                     | ExecutablePrivate
    deriving (forall x. Rep ExecutableScope x -> ExecutableScope
forall x. ExecutableScope -> Rep ExecutableScope x
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instance Pretty ExecutableScope where
    pretty :: ExecutableScope -> Doc
pretty ExecutableScope
ExecutablePublic       = String -> Doc
Disp.text String
"public"
    pretty ExecutableScope
ExecutablePrivate      = String -> Doc
Disp.text String
"private"

instance Parsec ExecutableScope where
    parsec :: forall (m :: * -> *). CabalParsing m => m ExecutableScope
parsec = forall (m :: * -> *) a. Parsing m => m a -> m a
P.try m ExecutableScope
pub forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|> m ExecutableScope
pri where
        pub :: m ExecutableScope
pub = ExecutableScope
ExecutablePublic  forall (f :: * -> *) a b. Functor f => a -> f b -> f a
<$ forall (m :: * -> *). CharParsing m => String -> m String
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"public"
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pri = ExecutableScope
ExecutablePrivate forall (f :: * -> *) a b. Functor f => a -> f b -> f a
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P.string String
"private"

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

-- | 'Any' like semigroup, where 'ExecutablePrivate' is 'Any True'
instance Semigroup ExecutableScope where
    ExecutableScope
ExecutablePublic    <> :: ExecutableScope -> ExecutableScope -> ExecutableScope
<> ExecutableScope
x = ExecutableScope
x
    x :: ExecutableScope
x@ExecutableScope
ExecutablePrivate <> ExecutableScope
_ = ExecutableScope
x

-- | 'mempty' = 'ExecutablePublic'
instance Monoid ExecutableScope where
    mempty :: ExecutableScope
mempty = ExecutableScope
ExecutablePublic
    mappend :: ExecutableScope -> ExecutableScope -> ExecutableScope
mappend = forall a. Semigroup a => a -> a -> a
(<>)