pub enum Entry<'a, V: 'a> {
Vacant(VacantEntry<'a, V>),
Occupied(OccupiedEntry<'a, V>),
}Expand description
A view into a single entry in a map, which may either be vacant or occupied.
Variants
Vacant(VacantEntry<'a, V>)
A vacant Entry
Occupied(OccupiedEntry<'a, V>)
An occupied Entry
Implementations
sourceimpl<'a, V> Entry<'a, V>
impl<'a, V> Entry<'a, V>
sourcepub fn or_insert(self, default: V) -> &'a mut V
pub fn or_insert(self, default: V) -> &'a mut V
Ensures a value is in the entry by inserting the default if empty, and returns a mutable reference to the value in the entry.
sourcepub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'a mut V
pub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'a mut V
Ensures a value is in the entry by inserting the result of the default function if empty, and returns a mutable reference to the value in the entry.
Auto Trait Implementations
impl<'a, V> RefUnwindSafe for Entry<'a, V> where
V: RefUnwindSafe,
impl<'a, V> Send for Entry<'a, V> where
V: Send,
impl<'a, V> Sync for Entry<'a, V> where
V: Sync,
impl<'a, V> Unpin for Entry<'a, V>
impl<'a, V> !UnwindSafe for Entry<'a, V>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more