Safe Haskell | Safe-Inferred |
---|---|
Language | Haskell2010 |
Control.Monad.ToolsYj
Documentation
whenDef :: Applicative m => a -> Bool -> m a -> m a Source #
whenMaybe :: Applicative m => Maybe a -> (a -> m ()) -> m () Source #
whenMaybeDef :: Applicative m => b -> Maybe a -> (a -> m b) -> m b Source #