Struct slotmap_fork_otter::sparse_secondary::VacantEntry[−][src]

pub struct VacantEntry<'a, K: Key, V> { /* fields omitted */ }

A view into a vacant entry in a SparseSecondaryMap. It is part of the Entry enum.

Implementations

impl<'a, K: Key, V> VacantEntry<'a, K, V>[src]

pub fn key(&self) -> K[src]

Gets the key that would be used when inserting a value through the VacantEntry.

Examples


let mut sm = SlotMap::new();
let mut sec: SparseSecondaryMap<_, ()> = SparseSecondaryMap::new();

let k = sm.insert(1);

if let Entry::Vacant(v) = sec.entry(k).unwrap() {
    assert_eq!(v.key(), k);
}

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

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

Examples


let mut sm = SlotMap::new();
let mut sec = SparseSecondaryMap::new();

let k = sm.insert(1);

if let Entry::Vacant(v) = sec.entry(k).unwrap() {
    let new_val = v.insert(3);
    assert_eq!(new_val, &mut 3);
}

Trait Implementations

impl<'a, K: Debug + Key, V: Debug> Debug for VacantEntry<'a, K, V>[src]

Auto Trait Implementations

impl<'a, K, V> RefUnwindSafe for VacantEntry<'a, K, V> where
    V: RefUnwindSafe, 

impl<'a, K, V> Send for VacantEntry<'a, K, V> where
    V: Send, 

impl<'a, K, V> Sync for VacantEntry<'a, K, V> where
    V: Sync, 

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

impl<'a, K, V> !UnwindSafe for VacantEntry<'a, K, V>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.