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Add an Intersection newtype wrapping These.

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This commit is contained in:
Rob Rix 2016-04-14 12:05:38 -04:00
parent cde4b78196
commit ddb1898b39
1 changed files with 3 additions and 0 deletions
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src/Data/Bifunctor/These.hs
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@ -42,6 +42,9 @@ apThese fg ab = uncurry maybeThese $ uncurry (***) (bimap (<*>) (<*>) (unpack fg
newtype Union a b = Union { getUnion :: Maybe (These a b) }
deriving (Eq, Show)
newtype Intersection a b = Intersection { getIntersection :: Maybe (These a b) }
deriving (Eq, Show)
-- Instances