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-- | Describes writable items; items that can be saved to the disk
--
{-# LANGUAGE FlexibleInstances, TypeSynonymInstances #-}
module Hakyll.Core.Writable
( Writable (..)
) where
import Data.Word (Word8)
import qualified Data.ByteString as SB
import qualified Data.ByteString.Lazy as LB
import Text.Blaze.Html (Html)
import Text.Blaze.Html.Renderer.String (renderHtml)
import Hakyll.Core.Identifier
-- | Describes an item that can be saved to the disk
--
class Writable a where
-- | Save an item to the given filepath
write :: FilePath -> a -> IO ()
instance Writable () where
write _ _ = return ()
instance Writable [Char] where
write = writeFile
instance Writable SB.ByteString where
write p = SB.writeFile p
instance Writable LB.ByteString where
write p = LB.writeFile p
instance Writable [Word8] where
write p = write p . SB.pack
instance Writable Html where
write p html = write p $ renderHtml html
instance Writable (Identifier a) where
write p = write p . show
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