diff options
Diffstat (limited to 'Invisible.hs')
| -rw-r--r-- | Invisible.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Invisible.hs b/Invisible.hs index 8a5295c..91659c5 100644 --- a/Invisible.hs +++ b/Invisible.hs @@ -17,6 +17,7 @@ module XMonadContrib.Invisible ( -- $usage Invisible (..) , whenIJust + , fromIMaybe ) where -- $usage @@ -41,3 +42,7 @@ instance (Functor m, Monad m) => Functor (Invisible m) where whenIJust :: (Monad m) => Invisible Maybe a -> (a -> m ()) -> m () whenIJust (I (Just x)) f = f x whenIJust (I Nothing) _ = return () + +fromIMaybe :: a -> Invisible Maybe a -> a +fromIMaybe _ (I (Just x)) = x +fromIMaybe a (I Nothing) = a |