diff --git a/Data/ByteString/Short/Internal.hs b/Data/ByteString/Short/Internal.hs index ff686a89db2ffb83e25baad74bfd07d117b34f71..837031ee21d77160a31ef8f17d2c78ab979a5f12 100644 --- a/Data/ByteString/Short/Internal.hs +++ b/Data/ByteString/Short/Internal.hs @@ -1,6 +1,7 @@ {-# LANGUAGE BangPatterns #-} {-# LANGUAGE CPP #-} {-# LANGUAGE DeriveDataTypeable #-} +{-# LANGUAGE DeriveGeneric #-} {-# LANGUAGE DeriveLift #-} {-# LANGUAGE ForeignFunctionInterface #-} {-# LANGUAGE GeneralizedNewtypeDeriving #-} @@ -235,6 +236,8 @@ import GHC.Exts , writeWord8Array# , unsafeFreezeByteArray# , touch# ) +import GHC.Generics + ( Generic ) import GHC.IO hiding ( unsafeDupablePerformIO ) import GHC.ForeignPtr ( ForeignPtr(ForeignPtr) @@ -281,7 +284,7 @@ newtype ShortByteString = { unShortByteString :: ByteArray -- ^ @since 0.12.0.0 } - deriving (Eq, TH.Lift, Data, NFData) + deriving (Eq, TH.Lift, Data, Generic, NFData) -- | Prior to @bytestring-0.12@ 'SBS' was a genuine constructor of 'ShortByteString', -- but now it is a bundled pattern synonym, provided as a compatibility shim.