dhall-1.25.0: src/Dhall/X.hs

{-# LANGUAGE RankNTypes #-}

module Dhall.X where

import Data.Data (Data(..))
import Data.Text.Prettyprint.Doc (Pretty(..))
import Instances.TH.Lift ()
import Language.Haskell.TH.Syntax (Lift, lift)

-- | Like `Data.Void.Void`, except with a shorter inferred type
newtype X = X { absurd :: forall a . a }

instance Show X where
    show = absurd

instance Eq X where
  _ == _ = True

instance Data X where
    dataTypeOf = absurd
    gunfold _ _ _ = undefined
    toConstr = absurd

instance Pretty X where
    pretty = absurd

instance Lift X where
  lift (X impossible) = impossible