Trait sp_trie::KeyFunction

pub trait KeyFunction<H> where
    H: Hasher, {
    type Key: Send + Sync + Clone + Hash + Eq;
    fn key(hash: &<H as Hasher>::Out, prefix: (&[u8], Option<u8>)) -> Self::Key;
}

Various re-exports from the memory-db crate.

Associated Types

type Key: Send + Sync + Clone + Hash + Eq

Required methods

fn key(hash: &<H as Hasher>::Out, prefix: (&[u8], Option<u8>)) -> Self::Key

Implementations on Foreign Types

impl<H> KeyFunction<H> for LegacyPrefixedKey<H> where
    H: Hasher, 

type Key = Vec<u8, Global>

pub fn key(
    hash: &<H as Hasher>::Out,
    prefix: (&[u8], Option<u8>)
) -> Vec<u8, Global>

impl<H> KeyFunction<H> for HashKey<H> where
    H: Hasher, 

type Key = <H as Hasher>::Out

pub fn key(
    hash: &<H as Hasher>::Out,
    prefix: (&[u8], Option<u8>)
) -> <H as Hasher>::Out

impl<H> KeyFunction<H> for PrefixedKey<H> where
    H: Hasher, 

type Key = Vec<u8, Global>

pub fn key(
    hash: &<H as Hasher>::Out,
    prefix: (&[u8], Option<u8>)
) -> Vec<u8, Global>

Implementors