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Add Eq1, Ord1 #15

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Merged
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Apr 24, 2017
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Add Eq1, Ord1 #15

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8 changes: 8 additions & 0 deletions src/Data/Identity.purs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,12 @@ import Control.Comonad (class Comonad)
import Control.Extend (class Extend)
import Control.Lazy (class Lazy)

import Data.Eq (class Eq1)
import Data.Foldable (class Foldable)
import Data.Functor.Invariant (class Invariant, imapF)
import Data.Monoid (class Monoid)
import Data.Newtype (class Newtype)
import Data.Ord (class Ord1)
import Data.Traversable (class Traversable)

newtype Identity a = Identity a
Expand Down Expand Up @@ -46,6 +48,12 @@ derive newtype instance lazyIdentity :: Lazy a => Lazy (Identity a)
instance showIdentity :: Show a => Show (Identity a) where
show (Identity x) = "(Identity " <> show x <> ")"

instance eq1Identity :: Eq1 Identity where
eq1 = eq

instance ord1Identity :: Ord1 Identity where
compare1 = compare

instance functorIdentity :: Functor Identity where
map f (Identity x) = Identity (f x)

Expand Down