Enum Entry

pub enum Entry<'a, K, V, S>
where
    K: Ord,
    S: StoreMut<K, V>,
{
    Occupied(OccupiedEntry<'a, K, V, S>),
    Vacant(VacantEntry<'a, K, V, S>),
}

An entry in a LiteMap, which may be either occupied or vacant.

Variants

Occupied(OccupiedEntry<'a, K, V, S>)

Vacant(VacantEntry<'a, K, V, S>)

Implementations

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

where K: Ord, S: StoreMut<K, V>,

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

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

pub fn or_default(self) -> &'a mut V

where V: Default,

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 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 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<K, V, S> Debug for Entry<'_, K, V, S>

where K: Ord, S: StoreMut<K, V>,

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

Formats the value using the given formatter.