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| author | Joey Hess <joey@kitenet.net> | 2014-03-29 23:10:52 -0400 |
|---|---|---|
| committer | Joey Hess <joey@kitenet.net> | 2014-03-29 23:16:43 -0400 |
| commit | d9af8bac5eb7836a3c90e37e870fd73d30b841fd (patch) | |
| tree | 40443efd384415172cf393571fe3f1651ea57423 /Utility/Applicative.hs | |
initial check-in
too young to have a name
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 00000000..64400c80 --- /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 <$$> v = fmap f . v +infixr 4 <$$> |
