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fix: Fix Foldable1 (Coyoneda f) instance #105

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fix: Fix Foldable1 (Coyoneda f) instance #105

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4 changes: 3 additions & 1 deletion src/Data/Coyoneda.purs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ import Data.Exists (Exists, runExists, mkExists)
import Data.Foldable (class Foldable, foldMap, foldl, foldr)
import Data.Functor.Invariant (class Invariant, imapF)
import Data.Ord (class Ord1, compare1)
import Data.Semigroup.Foldable (class Foldable1, foldMap1)
import Data.Semigroup.Foldable (class Foldable1, foldMap1, foldr1Default, foldl1Default)
import Data.Semigroup.Traversable (class Traversable1, sequence1, traverse1)
import Data.Traversable (class Traversable, traverse)

Expand Down Expand Up @@ -126,6 +126,8 @@ instance traversableCoyoneda :: Traversable f => Traversable (Coyoneda f) where
instance foldable1Coyoneda :: Foldable1 f => Foldable1 (Coyoneda f) where
foldMap1 f = unCoyoneda \k -> foldMap1 (f <<< k)
fold1 = unCoyoneda \k -> foldMap1 k
foldr1 = foldr1Default
foldl1 = foldl1Default

instance traversable1Coyoneda :: Traversable1 f => Traversable1 (Coyoneda f) where
traverse1 f = unCoyoneda \k -> map liftCoyoneda <<< traverse1 (f <<< k)
Expand Down