Struct VacantEntry 

pub struct VacantEntry<'a, K1, K2, V> { /* private fields */ }

A view into a vacant entry of a DoubleMap.

Implementations

impl<K1, K2, V> VacantEntry<'_, K1, K2, V>

pub fn key1(&self) -> &K1

Returns a reference to the K1 key that would be inserted.

pub fn key2(&self) -> &K2

Returns a reference to the K2 key that would be inserted.

pub fn keys(&self) -> (&K1, &K2)

Returns a reference to the keys of type K1 and K2 that would be inserted.

pub fn into_keys(self) -> (K1, K2)

Consumes this entry and returns the (K1, K2) keys it was holding.

impl<'a, K1, K2, V> VacantEntry<'a, K1, K2, V>

where K1: Clone, K2: Clone,

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

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

pub fn insert_entry(self, value: V) -> OccupiedEntry<'a, K1, K2, V>

Sets the value of the entry with the VacantEntry’s key, and returns an OccupiedEntry.