# Struct std::collections::hash_map::RawVacantEntryMut

source ·

    pub struct RawVacantEntryMut<'a, K: 'a, V: 'a, S: 'a> { /* private fields */ }

🔬This is a nightly-only experimental API. (`hash_raw_entry` #56167)
Expand description

A view into a vacant entry in a `HashMap`. It is part of the `RawEntryMut` enum.

## Implementations§

source§

### impl<'a, K, V, S> RawVacantEntryMut<'a, K, V, S>

source

#### pub fn insert(self, key: K, value: V) -> (&'a mut K, &'a mut V)where K: Hash, S: BuildHasher,

🔬This is a nightly-only experimental API. (`hash_raw_entry` #56167)

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

source

#### pub fn insert_hashed_nocheck( self, hash: u64, key: K, value: V ) -> (&'a mut K, &'a mut V)where K: Hash, S: BuildHasher,

🔬This is a nightly-only experimental API. (`hash_raw_entry` #56167)

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

## Trait Implementations§

source§

### impl<K, V, S> Debug for RawVacantEntryMut<'_, K, V, S>

source§

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

Formats the value using the given formatter. Read more

## Auto Trait Implementations§

§

### impl<'a, K, V, S> RefUnwindSafe for RawVacantEntryMut<'a, K, V, S>where K: RefUnwindSafe, S: RefUnwindSafe, V: RefUnwindSafe,

§

### impl<'a, K, V, S> Send for RawVacantEntryMut<'a, K, V, S>where K: Send, S: Sync, V: Send,

§

### impl<'a, K, V, S> Sync for RawVacantEntryMut<'a, K, V, S>where K: Sync, S: Sync, V: Sync,

§

### impl<'a, K, V, S> Unpin for RawVacantEntryMut<'a, K, V, S>

§

### impl<'a, K, V, S> !UnwindSafe for RawVacantEntryMut<'a, K, V, S>

## Blanket Implementations§

source§

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

source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
source§

### impl<T> Borrow<T> for Twhere T: ?Sized,

source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

### impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

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

Mutably borrows from an owned value. Read more
source§

### impl<T> From<T> for T

source§

#### fn from(t: T) -> T

Returns the argument unchanged.

source§

### impl<T, U> Into<U> for Twhere U: From<T>,

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.

source§

### impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

#### type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

### impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.