Type Alias MutationCallback

pub type MutationCallback<K, V> = Option<Box<dyn Fn(Operation, &Item<K, V>) + Send + Sync>>;

Aliased Type

enum MutationCallback<K, V> {
    None,
    Some(Box<dyn Fn(Operation, &Item<K, V>) + Sync + Send>),
}

Variants

None

No value.

Some(Box<dyn Fn(Operation, &Item<K, V>) + Sync + Send>)

Some value of type T.