module System.Log.FastLogger.LogStr (
Builder
, LogStr(..)
, ToLogStr(..)
, mempty
, (<>)
) where
#if MIN_VERSION_bytestring(0,10,2)
import Data.ByteString.Builder (Builder, byteString)
#else
import qualified Blaze.ByteString.Builder as BB (fromByteString)
import Blaze.ByteString.Builder.Internal.Types as BB (Builder(..))
#endif
import Data.ByteString.Internal (ByteString(..))
import Data.Monoid (Monoid, mempty, mappend)
import qualified Data.ByteString as BS
import qualified Data.ByteString.Char8 as S8
import qualified Data.ByteString.Lazy as L
#if MIN_VERSION_base(4,5,0)
import Data.Monoid ((<>))
#endif
import Data.String (IsString(..))
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import qualified Data.Text.Lazy as TL
import qualified Data.Text.Lazy.Encoding as TL
#if !MIN_VERSION_base(4,5,0)
(<>) :: Monoid m => m -> m -> m
(<>) = mappend
#endif
#if !MIN_VERSION_bytestring(0,10,2)
byteString :: ByteString -> Builder
byteString = BB.fromByteString
#endif
data LogStr = LogStr {
logStrLength :: !Int
, logStrBuilder :: Builder
}
instance Monoid LogStr where
mempty = LogStr 0 (byteString BS.empty)
LogStr s1 b1 `mappend` LogStr s2 b2 = LogStr (s1 + s2) (b1 <> b2)
instance IsString LogStr where
fromString = toLogStr . TL.pack
class ToLogStr msg where
toLogStr :: msg -> LogStr
instance ToLogStr LogStr where
toLogStr = id
instance ToLogStr S8.ByteString where
toLogStr = fromByteString
instance ToLogStr L.ByteString where
toLogStr = fromByteString . S8.concat . L.toChunks
instance ToLogStr String where
toLogStr = toLogStr . TL.pack
instance ToLogStr T.Text where
toLogStr = toLogStr . T.encodeUtf8
instance ToLogStr TL.Text where
toLogStr = toLogStr . TL.encodeUtf8
fromByteString :: ByteString -> LogStr
fromByteString bs = LogStr (BS.length bs) (byteString bs)