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Complete PR adding Generic instance for Either #61

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merged 2 commits into from
Dec 24, 2020
Merged

Complete PR adding Generic instance for Either #61

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32e9be4
Derive Generic instance for Either
paulyoung Oct 22, 2020
9e9b54a
Remove dependency on generics-rep
JordanMartinez Dec 24, 2020
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3 changes: 3 additions & 0 deletions src/Data/Either.purs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ import Data.Foldable (class Foldable)
import Data.FoldableWithIndex (class FoldableWithIndex)
import Data.Functor.Invariant (class Invariant, imapF)
import Data.FunctorWithIndex (class FunctorWithIndex)
import Data.Generic.Rep (class Generic)
import Data.Maybe (Maybe(..), maybe, maybe')
import Data.Ord (class Ord1)
import Data.Traversable (class Traversable)
Expand Down Expand Up @@ -40,6 +41,8 @@ derive instance functorEither :: Functor (Either a)
instance functorWithIndexEither :: FunctorWithIndex Unit (Either a) where
mapWithIndex f = map $ f unit

derive instance genericEither :: Generic (Either a b) _

instance invariantEither :: Invariant (Either a) where
imap = imapF

Expand Down