pub trait Layerer<L> where L: Layer, { fn current(&self) -> Option<L>; }
Layerer controls how items are iterated over a CellMaps layers.
Layerer
CellMap
fn current(&self) -> Option<L>
Returns the current layer.
impl<L> Layerer<L> for Many<L> where L: Layer,
impl<L> Layerer<L> for Map<L> where L: Layer,
impl<L> Layerer<L> for Single<L> where L: Layer,