Struct PassthroughBuildHasher 

pub struct PassthroughBuildHasher;

A BuildHasher that creates PassthroughHashers.

For use with hash maps/sets where keys store a pre-computed hash. The hash value is passed through without any additional hashing.

Trait Implementations

impl BuildHasher for PassthroughBuildHasher

type Hasher = PassthroughHasher

Type of the hasher that will be created.

fn build_hasher(&self) -> Self::Hasher

Creates a new hasher.

fn hash_one<T>(&self, x: T) -> u64

where T: Hash, Self: Sized, Self::Hasher: Hasher,

Calculates the hash of a single value.

impl Clone for PassthroughBuildHasher

fn clone(&self) -> PassthroughBuildHasher

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PassthroughBuildHasher

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

Formats the value using the given formatter.

impl Default for PassthroughBuildHasher

fn default() -> PassthroughBuildHasher

Returns the “default value” for a type.

impl Copy for PassthroughBuildHasher