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Diffstat (limited to 'Utility/Applicative.hs')
-rw-r--r-- | Utility/Applicative.hs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Utility/Applicative.hs b/Utility/Applicative.hs new file mode 100644 index 000000000..64400c801 --- /dev/null +++ b/Utility/Applicative.hs @@ -0,0 +1,16 @@ +{- applicative stuff + - + - Copyright 2012 Joey Hess <joey@kitenet.net> + - + - Licensed under the GNU GPL version 3 or higher. + -} + +module Utility.Applicative where + +{- Like <$> , but supports one level of currying. + - + - foo v = bar <$> action v == foo = bar <$$> action + -} +(<$$>) :: Functor f => (a -> b) -> (c -> f a) -> c -> f b +f <$$> v = fmap f . v +infixr 4 <$$> |