Struct Hasher

pub struct Hasher { /* private fields */ }

An implementation of std::hash::Hasher.

Example

use std::hash::Hasher as _;

use fasthash::{meow::Hasher, FastHasher, HasherExt};

let mut h = Hasher::new();

h.write(b"hello");
assert_eq!(h.finish_ext(), 287823689163471951033538203431451692478);

h.write(b"world");
assert_eq!(h.finish_ext(), 149236362065540004012572291671223589700);

Trait Implementations

impl AsRef<[u8]> for Hasher

fn as_ref(&self) -> &[u8]

Converts this type into a shared reference of the (usually inferred) input type.

impl BufHasher for Hasher

fn with_capacity_and_seed(capacity: usize, seed: Option<Self::Seed>) -> Self

Constructs a buffered hasher with capacity and seed

fn len(&self) -> usize

Returns the number of bytes in the buffer.

fn is_empty(&self) -> bool

Returns true if the slice has a length of 0.

fn as_slice(&self) -> &[u8]

Extracts a slice containing the entire buffer.

impl Clone for Hasher

fn clone(&self) -> Hasher

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hasher

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

Formats the value using the given formatter.

impl Default for Hasher

fn default() -> Self

Returns the “default value” for a type.

impl FastHasher for Hasher

type Output = u128

The output type

type Seed = <Hash128 as FastHash>::Seed

The seed to generate hash value.

fn new() -> Self

Constructs a new FastHasher.

fn with_seed(seed: Self::Seed) -> Self

Constructs a new FastHasher with seed.

fn with_random_seed() -> Self

Constructs a new FastHasher with a random seed.

impl Hasher for Hasher

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.