Struct toad_hash::Blake2Hasher

pub struct Blake2Hasher(_);

Heap-allocless Hasher implementation that uses the blake2 algo to generate a 64 bit hash.

use core::hash::{Hash, Hasher};

use toad_hash::Blake2Hasher;

let mut hasher_a = Blake2Hasher::new();
let mut hasher_b = Blake2Hasher::new();

let bytes = core::iter::repeat(0u8..255).take(512)
                                        .flatten()
                                        .collect::<Vec<u8>>();

bytes.hash(&mut hasher_a);
bytes.hash(&mut hasher_b);
assert_eq!(hasher_a.finish(), hasher_b.finish());

"hello".hash(&mut hasher_a);
"hello".hash(&mut hasher_b);
assert_eq!(hasher_a.finish(), hasher_b.finish());

123_u16.hash(&mut hasher_a);
"not 123!".hash(&mut hasher_b);
assert_ne!(hasher_a.finish(), hasher_b.finish());

Implementations

impl Blake2Hasher

pub fn new() -> Self

Create a new Blake2Hasher

Trait Implementations

impl Clone for Blake2Hasher

fn clone(&self) -> Blake2Hasher

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Blake2Hasher

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

Formats the value using the given formatter.

impl Default for Blake2Hasher

fn default() -> Blake2Hasher

Returns the “default value” for a type.

impl Hasher for Blake2Hasher

fn finish(&self) -> u64

Returns the hash value for the values written so far.

fn write(&mut self, bytes: &[u8])

Writes some data into this Hasher.

fn write_u8(&mut self, i: u8)

Writes a single u8 into this hasher.

fn write_u16(&mut self, i: u16)

Writes a single u16 into this hasher.

fn write_u32(&mut self, i: u32)

Writes a single u32 into this hasher.

fn write_u64(&mut self, i: u64)

Writes a single u64 into this hasher.

fn write_u128(&mut self, i: u128)

Writes a single u128 into this hasher.

fn write_usize(&mut self, i: usize)

Writes a single usize into this hasher.

fn write_i8(&mut self, i: i8)

Writes a single i8 into this hasher.

fn write_i16(&mut self, i: i16)

Writes a single i16 into this hasher.

fn write_i32(&mut self, i: i32)

Writes a single i32 into this hasher.

fn write_i64(&mut self, i: i64)

Writes a single i64 into this hasher.

fn write_i128(&mut self, i: i128)

Writes a single i128 into this hasher.

fn write_isize(&mut self, i: isize)

Writes a single isize into this hasher.

fn write_length_prefix(&mut self, len: usize)

🔬This is a nightly-only experimental API. (hasher_prefixfree_extras)

Writes a length prefix into this hasher, as part of being prefix-free.

fn write_str(&mut self, s: &str)

🔬This is a nightly-only experimental API. (hasher_prefixfree_extras)

Writes a single str into this hasher.