Struct HashState 

pub struct HashState<'d> { /* private fields */ }

Keyed hash builder issued for one exact generative driver domain.

The driver lifetime is invariant and cannot be widened:

use dope_runtime::random::HashState;

fn escape<'d>(state: HashState<'d>) -> HashState<'static> {
    state
}

Construction is reserved for a runtime session holding the matching brand:

use dope_runtime::random::HashState;

let _ = HashState::new([1, 2]);

Building a hasher preserves the same invariant driver lifetime:

use std::hash::BuildHasher;
use dope_runtime::random::{HashState, Hasher};

fn erase<'d>(state: HashState<'d>) -> Hasher<'static> {
    state.build_hasher()
}

Trait Implementations

impl<'d> BuildHasher for HashState<'d>

type Hasher = Hasher<'d>

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<'d> Clone for HashState<'d>

fn clone(&self) -> HashState<'d>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'d> Copy for HashState<'d>