[]Trait sp_core::Hasher

pub trait Hasher: Send + Sync {
    type Out: MaybeDebug + Clone + PartialEq<Self::Out> + Eq + AsRef<[u8]> + AsMut<[u8]> + Default + Send + Copy + Sync + Hash;
    type StdHasher: Default + Send + Sync + Hasher;

    pub const LENGTH: usize;

    pub fn hash(x: &[u8]) -> Self::Out;
}

Trait describing an object that can hash a slice of bytes. Used to abstract other types over the hashing algorithm. Defines a single hash method and an Out associated type with the necessary bounds.

Associated Types

type Out: MaybeDebug + Clone + PartialEq<Self::Out> + Eq + AsRef<[u8]> + AsMut<[u8]> + Default + Send + Copy + Sync + Hash

The output type of the Hasher

type StdHasher: Default + Send + Sync + Hasher

What to use to build HashMaps with this Hasher.

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Associated Constants

pub const LENGTH: usize

The length in bytes of the Hasher output.

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Required methods

pub fn hash(x: &[u8]) -> Self::Out

Compute the hash of the provided slice of bytes returning the Out type of the Hasher.

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Implementors

impl Hasher for Blake2Hasher[src]

type Out = H256

type StdHasher = Hash256StdHasher

impl Hasher for KeccakHasher[src]

type Out = H256

type StdHasher = Hash256StdHasher

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