# [−][src]Struct std::collections::hash_map::RawEntryBuilder

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

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

A builder for computing where in a HashMap a key-value pair would be stored.

See the `HashMap::raw_entry` docs for usage examples.

## Methods

### `impl<'a, K, V, S> RawEntryBuilder<'a, K, V, S> where
S: BuildHasher,` [src]

#### `pub fn from_key<Q: ?Sized>(self, k: &Q) -> Option<(&'a K, &'a V)> where
K: Borrow<Q>,
Q: Hash + Eq,` [src]

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

Access an entry by key.

#### `pub fn from_key_hashed_nocheck<Q: ?Sized>(
self,
hash: u64,
k: &Q
) -> Option<(&'a K, &'a V)> where
K: Borrow<Q>,
Q: Hash + Eq,` [src]

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

Access an entry by a key and its hash.

#### `pub fn from_hash<F>(self, hash: u64, is_match: F) -> Option<(&'a K, &'a V)> where
F: FnMut(&K) -> bool,` [src]

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

Access an entry by hash.

#### `pub fn search_bucket<F>(self, hash: u64, is_match: F) -> Option<(&'a K, &'a V)> where
F: FnMut(&K) -> bool,` [src]

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

Search possible locations for an element with hash `hash` until `is_match` returns true for one of them. There is no guarantee that all keys passed to `is_match` will have the provided hash.

## Trait Implementations

### `impl<'a, K, V, S> Debug for RawEntryBuilder<'a, K, V, S>`[src]

#### `fn fmt(&self, f: &mut Formatter) -> Result`[src]

Formats the value using the given formatter. Read more

## Auto Trait Implementations

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

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

## Blanket Implementations

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

#### `fn from(t: T) -> T`[src]

Performs the conversion.

### `impl<T, U> TryFrom for T where
T: From<U>,` [src]

#### `type Error = !`

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

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

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

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

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

🔬 This is a nightly-only experimental API. (`try_from` #33417)

The type returned in the event of a conversion error.

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

🔬 This is a nightly-only experimental API. (`try_from` #33417)

Performs the conversion.

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

#### `fn into(self) -> U`[src]

Performs the conversion.

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

####
ⓘImportant traits for &'_ mut I

### Important traits for &'_ mut I

`impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow(&self) -> &T`[src]

Immutably borrows from an owned value. Read more

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

####
ⓘImportant traits for &'_ mut I

### Important traits for &'_ mut I

`impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow_mut(&mut self) -> &mut T`[src]

Mutably borrows from an owned value. Read more

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

#### `fn get_type_id(&self) -> TypeId`[src]

🔬 This is a nightly-only experimental API. (`get_type_id` #27745)

this method will likely be replaced by an associated static

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

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