Type Alias Fallback 

pub type Fallback<V> = Option<Rc<dyn Fn() -> V>>;

A fallback value of a property whose path a null step interrupts (Func<TProperty>?).

Aliased Type

pub enum Fallback<V> {
    None,
    Some(Rc<dyn Fn() -> V>),
}

Variants

None

No value.

Some(Rc<dyn Fn() -> V>)

Some value of type T.