Enum Entry 

pub enum Entry<'a, K, V>
where
    K: Eq + Hash + Clone,
{
    Occupied(OccupiedEntry<'a, K, V>),
    Vacant(VacantEntry<'a, K, V>),
}

An entry into a SeqMap which may be either vacant or occupied.

Variants

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

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

Implementations

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

where K: Eq + Hash + Clone,

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

Inserts the value if the entry is vacant, and returns a mutable reference to the value.

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

Inserts the value computed by f if vacant, and returns a mutable reference.

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

where V: Default,

Inserts Default::default() if vacant. Requires V: Default.

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

If the entry is occupied, apply the closure to its value. Returns self for chaining.