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Hedgehog.Internal.State: Add instance Applicative Concrete #493

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Hedgehog.Internal.State: Add instance Applicative Concrete #493

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3 changes: 3 additions & 0 deletions CHANGELOG.md
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@@ -1,5 +1,6 @@
## Version 1.2.1 (unreleased)

* Add `instance Applicative Concrete` ([#493][493], [@endgame][endgame])
* Export `Hedgehog.Internal.Seed.seed` ([#477][477], [@sol][sol])

## Version 1.2 (2022-08-28)
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https://github.com/jhrcek


[493]:
https://github.com/hedgehogqa/haskell-hedgehog/pull/493
[462]:
https://github.com/hedgehogqa/haskell-hedgehog/pull/462
[461]:
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5 changes: 5 additions & 0 deletions hedgehog/src/Hedgehog/Internal/State.hs
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Expand Up @@ -135,6 +135,11 @@ newtype Concrete a where
Concrete :: a -> Concrete a
deriving (Eq, Ord, Functor, Foldable, Traversable)

-- | @since 1.2.1
instance Applicative Concrete where
pure = Concrete
Concrete f <*> Concrete x = Concrete $ f x

instance Show a => Show (Concrete a) where
showsPrec =
showsPrec1
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