Struct Hasher

pub struct Hasher { /* private fields */ }

Available on crate feature xxhash3_64 only.

Calculates the 64-bit hash.

Implementations

impl Hasher

pub fn new() -> Self

Available on crate feature alloc only.

Constructs the hasher using the default seed and secret values.

pub fn with_seed(seed: u64) -> Self

Available on crate feature alloc only.

Constructs the hasher using the provided seed and a secret derived from the seed.

pub fn with_seed_and_secret( seed: u64, secret: impl Into<Box<[u8]>>, ) -> Result<Self, SecretTooShortError<Box<[u8]>>>

Available on crate feature alloc only.

Constructs the hasher using the provided seed and secret.

pub fn into_secret(self) -> Box<[u8]>

Available on crate feature alloc only.

Returns the secret.

impl Hasher

pub fn oneshot(input: &[u8]) -> u64

Hash all data at once. If you can use this function, you may see noticable speed gains for certain types of input.

pub fn oneshot_with_seed(seed: u64, input: &[u8]) -> u64

Hash all data at once using the provided seed and a secret derived from the seed. If you can use this function, you may see noticable speed gains for certain types of input.

pub fn oneshot_with_secret( secret: &[u8], input: &[u8], ) -> Result<u64, OneshotWithSecretError>

Hash all data at once using the provided secret and the default seed. If you can use this function, you may see noticable speed gains for certain types of input.

pub fn oneshot_with_seed_and_secret( seed: u64, secret: &[u8], input: &[u8], ) -> Result<u64, OneshotWithSecretError>

Hash all data at once using the provided seed and secret. If you can use this function, you may see noticable speed gains for certain types of input.

Trait Implementations

impl Clone for Hasher

fn clone(&self) -> Hasher

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Hasher

Available on crate feature alloc only.

fn default() -> Self

Returns the “default value” for a type.

impl Hasher for Hasher

Available on crate feature alloc only.

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

Writes some data into this Hasher.

fn finish(&self) -> u64

Returns the hash value for the values written so far.

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.