Enum dashmap::mapref::entry::Entry

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pub enum Entry<'a, K, V, S = RandomState> {
    Occupied(OccupiedEntry<'a, K, V, S>),
    Vacant(VacantEntry<'a, K, V, S>),
}

Variants

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

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

Implementations

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impl<'a, K: Eq + Hash, V, S: BuildHasher> Entry<'a, K, V, S>

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pub fn and_modify(self, f: impl FnOnce(&mut V)) -> Self

Apply a function to the stored value if it exists.

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pub fn key(&self) -> &K

Get the key of the entry.

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pub fn into_key(self) -> K

Into the key of the entry.

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pub fn or_default(self) -> RefMut<'a, K, V, S> where
V: Default,

Return a mutable reference to the element if it exists, otherwise insert the default and return a mutable reference to that.

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pub fn or_insert(self, value: V) -> RefMut<'a, K, V, S>

Return a mutable reference to the element if it exists, otherwise a provided value and return a mutable reference to that.

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pub fn or_insert_with(self, value: impl FnOnce() -> V) -> RefMut<'a, K, V, S>

Return a mutable reference to the element if it exists, otherwise insert the result of a provided function and return a mutable reference to that.

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pub fn or_try_insert_with<E>(
self,
value: impl FnOnce() -> Result<V, E>
) -> Result<RefMut<'a, K, V, S>, E>

Auto Trait Implementations

impl<'a, K, V, S = RandomState> !RefUnwindSafe for Entry<'a, K, V, S>

impl<'a, K, V, S> Send for Entry<'a, K, V, S> where
 K: Hash + Eq + Sync,
 S: BuildHasher,
 V: Sync,

impl<'a, K, V, S> Sync for Entry<'a, K, V, S> where
 K: Hash + Eq + Sync,
 S: BuildHasher,
 V: Sync,

impl<'a, K, V, S> Unpin for Entry<'a, K, V, S> where
K: Unpin,

impl<'a, K, V, S = RandomState> !UnwindSafe for Entry<'a, K, V, S>

Blanket Implementations

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum dashmap::mapref::entry::Entry

Variants

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

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

Implementations

impl<'a, K: Eq + Hash, V, S: BuildHasher> Entry<'a, K, V, S>

pub fn and_modify(self, f: impl FnOnce(&mut V)) -> Self

pub fn key(&self) -> &K

pub fn into_key(self) -> K

pub fn or_default(self) -> RefMut<'a, K, V, S> where V: Default,

pub fn or_insert(self, value: V) -> RefMut<'a, K, V, S>

pub fn or_insert_with(self, value: impl FnOnce() -> V) -> RefMut<'a, K, V, S>

pub fn or_try_insert_with<E>( self, value: impl FnOnce() -> Result<V, E>) -> Result<RefMut<'a, K, V, S>, E>

Auto Trait Implementations

impl<'a, K, V, S = RandomState> !RefUnwindSafe for Entry<'a, K, V, S>

impl<'a, K, V, S> Send for Entry<'a, K, V, S> where K: Hash + Eq + Sync, S: BuildHasher, V: Sync,

impl<'a, K, V, S> Sync for Entry<'a, K, V, S> where K: Hash + Eq + Sync, S: BuildHasher, V: Sync,

impl<'a, K, V, S> Unpin for Entry<'a, K, V, S> where K: Unpin,

impl<'a, K, V, S = RandomState> !UnwindSafe for Entry<'a, K, V, S>

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

type Init = T

unsafe fn init(init: <T as Pointable>::Init) -> usize

unsafe fn deref<'a>(ptr: usize) -> &'a T

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

unsafe fn drop(ptr: usize)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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

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

pub fn or_default(self) -> RefMut<'a, K, V, S> where
V: Default,

pub fn or_try_insert_with<E>(
self,
value: impl FnOnce() -> Result<V, E>
) -> Result<RefMut<'a, K, V, S>, E>

impl<'a, K, V, S> Send for Entry<'a, K, V, S> where
K: Hash + Eq + Sync,
S: BuildHasher,
V: Sync,

impl<'a, K, V, S> Sync for Entry<'a, K, V, S> where
K: Hash + Eq + Sync,
S: BuildHasher,
V: Sync,

impl<'a, K, V, S> Unpin for Entry<'a, K, V, S> where
K: Unpin,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,