Add Hashable instances for Data.Semigroup.{Sum,Product}.
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jonathanknowles
commented
Oct 20, 2025
| deriving newtype instance Hashable a => Hashable (Semi.Max a) | ||
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| deriving newtype instance Hashable a => Hashable (Semi.Sum a) | ||
| deriving newtype instance Hashable a => Hashable (Semi.Product a) |
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I'd be happy to also add:
- a
@since <version number>for each new instance - an accompanying
CHANGELOGentry
Though what version should be listed? (I notice that some repositories use "unreleased" as a placeholder for the eventual version number.)
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This PR adds
Hashableinstances for:Data.Semigroup.SumData.Semigroup.Product