Enum Entry

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

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

This enum is constructed from the entry method on IndexMap.

Variants

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

An occupied entry.

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

A vacant entry.

Implementations

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

where K: Hash + Eq + Ord + Clone,

pub fn key(&self) -> &K

Returns a reference to this entry’s key.

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

where K: Hash + Eq + Ord + Clone, V: Default,

pub fn or_default(self) -> &'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.

Trait Implementations

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

where K: Debug + Ord, V: Debug,

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

Formats the value using the given formatter.