Struct VacantEntry

pub struct VacantEntry<'a, K, V>
where
    K: Ord,
{ /* private fields */ }

A view into a vacant entry in a IndexMap.

It is part of the Entry enum.

Implementations

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

where K: 'a + Ord + Clone, V: 'a,

pub fn key(&self) -> &K

Gets a reference to the key in the entry.

pub fn into_key(self) -> K

Take ownership of the key.

pub fn insert(self, value: V) -> &'a mut V

where K: Hash,

Sets the value of the entry with the VacantEntry’s key, and returns a mutable reference to it.

Trait Implementations

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

where K: Debug + Ord, V: Debug,

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

Formats the value using the given formatter.