{-# LANGUAGE GeneralizedNewtypeDeriving #-} -------------------------------------------------------------------------------- -- | -- Module : Database.EventStore.Internal.Command -- Copyright : (C) 2016 Yorick Laupa -- License : (see the file LICENSE) -- -- Maintainer : Yorick Laupa <yo.eight@gmail.com> -- Stability : provisional -- Portability : non-portable -- -------------------------------------------------------------------------------- module Database.EventStore.Internal.Command (Command(..)) where -------------------------------------------------------------------------------- import Data.Word import Numeric -------------------------------------------------------------------------------- import ClassyPrelude -------------------------------------------------------------------------------- -- | Internal command representation. newtype Command = Command { cmdWord8 :: Word8 } deriving (Eq, Ord, Num) -------------------------------------------------------------------------------- padding :: String -> String padding [x] = ['0',x] padding xs = xs -------------------------------------------------------------------------------- instance Show Command where show (Command w) = "0x" ++ padding (showHex w "")