{-# LANGUAGE GADTs, NoImplicitPrelude, OverloadedStrings #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
-----------------------------------------------------------------------------
-- |
-- Module      :  Text.Show.Text.Data.Type.Coercion
-- Copyright   :  (C) 2014 Ryan Scott
-- License     :  BSD-style (see the file LICENSE)
-- Maintainer  :  Ryan Scott
-- Stability   :  Experimental
-- Portability :  GHC
-- 
-- Monomorphic 'Show' function for representational equality.
----------------------------------------------------------------------------
module Text.Show.Text.Data.Type.Coercion (showbCoercion) where

import Data.Text.Lazy.Builder (Builder)
import Data.Type.Coercion (Coercion(..))

import Prelude hiding (Show)

import Text.Show.Text.Class (Show(showb))

-- | Convert a representational equality value to a 'Builder'.
showbCoercion :: Coercion a b -> Builder
showbCoercion Coercion = "Coercion"
{-# INLINE showbCoercion #-}

instance Show (Coercion a b) where
    showb = showbCoercion
    {-# INLINE showb #-}