ref: a4229eb282ca32bc14103a33092e94382c3c7ca0
dir: /lib/Data/Functor/Identity.hs/
-- Copyright 2023 Lennart Augustsson
-- See LICENSE file for full license.
module Data.Functor.Identity(Identity(..)) where
import Prelude() -- do not import Prelude
import Primitives
import Control.Applicative
import Control.Monad
import Data.Bool
import Data.Eq
import Data.Function
import Data.Functor
import Data.Int
import Data.Ord
import Data.Records -- needed since we don't import Mhs.Builtin
import Text.Show
newtype Identity a = Identity { runIdentity :: a }
deriving (Eq, Ord, Show)
instance Functor Identity where
fmap f (Identity a) = Identity (f a)
instance Applicative Identity where
pure a = Identity a
Identity f <*> Identity a = Identity (f a)
instance Monad Identity where
Identity a >>= f = f a