Enum Entry 

pub enum Entry<'a, A: Array, K> {
    Occupied(OccupiedEntry<'a, A>),
    Vacant(VacantEntry<'a, A, K>),
}

A view into a single entry in a set, which may either be vacant or occupied.

This enum is constructed from the entry method on SmallOrdSet.

Variants

Occupied(OccupiedEntry<'a, A>)

An occupied entry.

Vacant(VacantEntry<'a, A, K>)

A vacant entry.

Implementations

impl<'a, A, K, V> Entry<'a, A, K>

where A: Array<Item = KeyValuePair<K, V>>, K: Ord + 'a, V: 'a,

pub fn or_insert(self, default: V) -> &'a mut V

Ensures a value is in the entry by inserting the default if empty, and returns a mutable reference to the value in the entry.

pub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'a mut V

Ensures a value is in the entry by inserting the result of the default function if empty, and returns a mutable reference to the value in the entry.

pub fn key(&self) -> &K

Returns a reference to this entry’s key.

pub fn and_modify<F>(self, f: F) -> Self

where F: FnOnce(&mut V),

Provides in-place mutable access to an occupied entry before any potential inserts into the map.

Trait Implementations

impl<A, K> Debug for Entry<'_, A, K>

where A: Array, A::Item: Debug, K: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.