Trait frame_support::StorageHasher

pub trait StorageHasher: 'static {
    type Output: AsRef<[u8]>;

    const METADATA: StorageHasher;

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

Hasher to use to hash keys to insert to storage.

Associated Types

type Output: AsRef<[u8]>

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Associated Constants

const METADATA: StorageHasher

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Required methods

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

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Implementors

impl StorageHasher for Blake2_128

const METADATA: StorageHasher

type Output = [u8; 16]

fn hash(x: &[u8]) -> [u8; 16]

impl StorageHasher for Blake2_128Concat

const METADATA: StorageHasher

type Output = Vec<u8>

fn hash(x: &[u8]) -> Vec<u8>

impl StorageHasher for Blake2_256

const METADATA: StorageHasher

type Output = [u8; 32]

fn hash(x: &[u8]) -> [u8; 32]

impl StorageHasher for Identity

const METADATA: StorageHasher

type Output = Vec<u8>

fn hash(x: &[u8]) -> Vec<u8>

impl StorageHasher for Twox64Concat

const METADATA: StorageHasher

type Output = Vec<u8>

fn hash(x: &[u8]) -> Vec<u8>

impl StorageHasher for Twox128

const METADATA: StorageHasher

type Output = [u8; 16]

fn hash(x: &[u8]) -> [u8; 16]

impl StorageHasher for Twox256

const METADATA: StorageHasher

type Output = [u8; 32]

fn hash(x: &[u8]) -> [u8; 32]

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