Struct `AHasher`

pub struct AHasher { /* private fields */ }

A Hasher for hashing an arbitrary stream of bytes.

Instances of AHasher represent state that is updated while hashing data.

Each method updates the internal state based on the new data provided. Once all of the data has been provided, the resulting hash can be obtained by calling finish()

[Clone] is also provided in case you wish to calculate hashes for two different items that start with the same data.

Trait Implementations

`impl Debug for AHasher`

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

Constructs a new [AHasher] with fixed keys. If std is enabled these will be generated upon first invocation. Otherwise if the compile-time-rngfeature is enabled these will be generated at compile time. If neither of these features are available, hardcoded constants will be used.

Because the values are fixed, different hashers will all hash elements the same way. This could make hash values predictable, if DOS attacks are a concern. If this behaviour is not required, it may be preferable to use [RandomState] instead.

Examples

use ahash::AHasher;
use std::hash::Hasher;

let mut hasher_1 = AHasher::default();
let mut hasher_2 = AHasher::default();

hasher_1.write_u32(1234);
hasher_2.write_u32(1234);

assert_eq!(hasher_1.finish(), hasher_2.finish());

`impl Hasher for AHasher`

fn write_u8(&mut self, i: u8)
fn write_u16(&mut self, i: u16)
fn write_u32(&mut self, i: u32)
fn write_u64(&mut self, i: u64)
fn write_u128(&mut self, i: u128)
fn write_usize(&mut self, i: usize)
fn write(&mut self, input: &[u8])
fn finish(&self) -> u64

Auto Trait Implementations

`impl Freeze for AHasher`

`impl RefUnwindSafe for AHasher`

`impl Send for AHasher`

`impl Sync for AHasher`

`impl Unpin for AHasher`

`impl UnsafeUnpin for AHasher`

`impl UnwindSafe for AHasher`

Blanket Implementations

`impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for AHasher where ST: ?Sized, DT: ?Sized,`

`impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for AHasher where ST: ?Sized, DT: ?Sized,`

`impl<T> Any for AHasher where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for AHasher where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for AHasher where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> CloneToUninit for AHasher where T: Clone,`

unsafe fn clone_to_uninit(&self, dest: *mut u8)

`impl<T> From<T> for AHasher`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> Read<Exclusive, BecauseExclusive> for AHasher where T: ?Sized,`

`impl<T> ToOwned for AHasher where T: Clone,`

type Owned = T;
fn to_owned(&self) -> T
fn clone_into(&self, target: &mut T)

`impl<T, U> Into for AHasher where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for AHasher where U: Into<T>,`

type Error = never;
fn try_from(value: U) -> Result<T, never>

`impl<T, U> TryInto for AHasher where U: TryFrom<T>,`

type Error = >::Error;
fn try_into(self) -> Result<U, >::Error>