Deprecate monomorphic foldl1 #42
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kl0tl
commented
Nov 23, 2020
src/Data/NonEmpty.purs
Outdated
| @@ -47,8 +49,8 @@ singleton :: forall f a. Plus f => a -> NonEmpty f a | |||
| singleton a = a :| empty | |||
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| -- | Fold a non-empty structure, collecting results using a binary operation. | |||
| foldl1 :: forall f a. Foldable f => (a -> a -> a) -> NonEmpty f a -> a | |||
| foldl1 f (a :| fa) = foldl f a fa | |||
| foldl1 :: forall f a. Foldable f => Warn (Text "'foldl1' is deprecated") => (a -> a -> a) -> NonEmpty f a -> a | |||
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Should we give a suggestion there?
'Data.NonEmpty.foldl1' is deprecated, use 'Data.Semigroup.Foldable.foldl1' instead
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I think that's a good idea -- better to suggest the proper alternative as there is one.
thomashoneyman
approved these changes
Nov 25, 2020
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Responses to #40 seem more favorable to deprecating then removing
Data.NonEmpty.foldl1.