Enum Entry

pub enum Entry<'a, K, V, S = RandomState> {
    Occupied(OccupiedEntry<'a, K, V, S>),
    Vacant(VacantEntry<'a, K, V, S>),
}

Variants

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

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

Implementations

impl<'a, K: Eq + Hash, V, S: BuildHasher> Entry<'a, K, V, S>

pub fn and_modify(self, f: impl FnOnce(&mut V)) -> Self

Apply a function to the stored value if it exists.

pub fn key(&self) -> &K

Get the key of the entry.

pub fn into_key(self) -> K

Into the key of the entry.

pub fn or_default(self) -> RefMut<'a, K, V, S>

where V: Default,

Return a mutable reference to the element if it exists, otherwise insert the default and return a mutable reference to that.

pub fn or_insert(self, value: V) -> RefMut<'a, K, V, S>

Return a mutable reference to the element if it exists, otherwise a provided value and return a mutable reference to that.

pub fn or_insert_with(self, value: impl FnOnce() -> V) -> RefMut<'a, K, V, S>

Return a mutable reference to the element if it exists, otherwise insert the result of a provided function and return a mutable reference to that.

pub fn or_try_insert_with<E>( self, value: impl FnOnce() -> Result<V, E>, ) -> Result<RefMut<'a, K, V, S>, E>