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authorGravatar Joey Hess <joey@kitenet.net>2012-06-29 10:00:05 -0400
committerGravatar Joey Hess <joey@kitenet.net>2012-06-29 10:00:05 -0400
commit29335bf32685ee665f9ec5acbcfe7f8edabd1b96 (patch)
tree87b11ade25aa99712df020063221ecd6af43b771 /Utility/Applicative.hs
parentcd0ab91c91e84b726dbc3da39e57893bd1417ee9 (diff)
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+{- 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 <$$> v = fmap f . v
+infixr 4 <$$>