Function wayland_commons::downcast_impl
[−]
[src]
pub fn downcast_impl<Msg: 'static, Meta: 'static, T: Implementation<Meta, Msg>>(
b: Box<Implementation<Meta, Msg>>
) -> Result<Box<T>, Box<Implementation<Meta, Msg>>>
Attempt to downcast a boxed Implementation trait object.
Similar to Box::<Any>::downcast().