Trait sp_trie::KeyFunction

pub trait KeyFunction<H> where
    H: Hasher, {
    type Key: Clone + Eq + Send + Sync + Hash;
    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: Clone + Eq + Send + Sync + Hash

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Required methods

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

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Implementations on Foreign Types

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

type Key = <H as Hasher>::Out

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

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

type Key = Vec<u8>

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

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

type Key = Vec<u8>

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

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Implementors

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