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,

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

🔬 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,

🔬 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,

🔬 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,

🔬 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>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.