re-add Alternate newtype #50
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garyb
requested changes
Jul 16, 2018
| append (Alternate a) (Alternate b) = Alternate (a <|> b) | ||
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| instance monoidAlternate :: Plus f => Monoid (Alternate f a) where | ||
| mempty = Alternate empty |
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Sorry to be super nitpicky, but can you put an empty newline at the end of the file too please?
src/Data/Monoid/Alternate.purs
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| derive newtype instance eqAlternate :: Eq (f a) => Eq (Alternate f a) | ||
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| derive newtype instance ordAlternate :: Ord (f a) => Ord (Alternate f a) |
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Can we add Eq1 and Ord1 instances while we're here? You should be able to derive them I think, with Eq1 / Ord1 constraints on f.
Thimoteus
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garyb
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Jul 17, 2018
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Thanks! |
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Since the merge of the deprecated monoid lib into Prelude, all the newtypes except this were kept. This can't fit in the prelude, because
Altexists here.