Make V Monoid #12
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Make V Monoid #12
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paf31
reviewed
May 4, 2017
src/Data/Validation/Semigroup.purs
Outdated
| @@ -70,3 +71,9 @@ instance applyV :: (Semigroup err) => Apply (V err) where | |||
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| instance applicativeV :: (Semigroup err) => Applicative (V err) where | |||
| pure = Valid | |||
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| instance semigroupV :: (Semigroup err, Semigroup a) => Semigroup (V err a) where | |||
| append x y = append <$> x <*> y | |||
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I guess not, but difference should be really small right?
Also javascript runtime could optimise lift2 if it's called too often.
paf31
reviewed
May 4, 2017
src/Data/Validation/Semiring.purs
Outdated
| @@ -77,6 +78,12 @@ instance applyV :: (Semiring err) => Apply (V err) where | |||
| instance applicativeV :: (Semiring err) => Applicative (V err) where | |||
| pure = Valid | |||
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| instance semigroupV :: (Semiring err, Semigroup a) => Semigroup (V err a) where | |||
| append x y = append <$> x <*> y | |||
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@paf31 @kritzcreek ping |
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Thanks! |
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