hackport-0.6.4: cabal/Cabal/Distribution/Parsec/Error.hs

{-# LANGUAGE DeriveGeneric #-}
module Distribution.Parsec.Error (
    PError (..),
    showPError,
    ) where

import Distribution.Compat.Prelude
import Distribution.Parsec.Position
import Prelude ()
import System.FilePath              (normalise)

-- | Parser error.
data PError = PError Position String
    deriving (Show, Generic)

instance Binary PError
instance NFData PError where rnf = genericRnf

showPError :: FilePath -> PError -> String
showPError fpath (PError pos msg) =
    normalise fpath ++ ":" ++ showPos pos ++ ": " ++ msg