Struct NoHash 

pub struct NoHash;

NoHash type skips hashing altogether.

When a filter is constructed using NoHash as the type parameter then it is upto application to generate the 64-bit hash digest outside this library.

Trait Implementations

impl BuildHasher for NoHash

type Hasher = NoHash

Type of the hasher that will be created.

fn build_hasher(&self) -> Self

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 Clone for NoHash

fn clone(&self) -> NoHash

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for NoHash

fn default() -> Self

Returns the “default value” for a type.

impl From<NoHash> for Vec<u8>

fn from(_: NoHash) -> Vec<u8>

Converts to this type from the input type.

impl From<Vec<u8>> for NoHash

fn from(_: Vec<u8>) -> NoHash

Converts to this type from the input type.

impl Hasher for NoHash

fn write(&mut self, _bytes: &[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.