UpgradeDifferentCategory.hs

{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE TypeOperators #-}
{-# OPTIONS_GHC -Wall #-}

-- | The name @upgradeDifferentCategory@, which targets @()@. It names a field or constructor of @CourseType@.
module ReOC.Name.UpgradeDifferentCategory (
  UpgradeDifferentCategoryLike (..),
) where

import Control.Lens (Optic)

class UpgradeDifferentCategoryLike p f x x' where
  upgradeDifferentCategory ::
    Optic p f x x' () ()

-- | Identity
instance (x' ~ ()) => UpgradeDifferentCategoryLike p f () x' where
  upgradeDifferentCategory = id