Trait trie_db::HashDBRef

pub trait HashDBRef<H, T> where
    H: Hasher, {
    fn get(&self, key: &<H as Hasher>::Out) -> Option<T>;
    fn contains(&self, key: &<H as Hasher>::Out) -> bool;
}

Trait for immutable reference of HashDB.

Required methods

fn get(&self, key: &<H as Hasher>::Out) -> Option<T>

Look up a given hash into the bytes that hash to it, returning None if the hash is not known.

fn contains(&self, key: &<H as Hasher>::Out) -> bool

Check for the existance of a hash-key.

Implementors

impl<'a, H, T> HashDBRef<H, T> for &'a (dyn HashDB<H, T> + 'a) where
    H: Hasher, 

impl<'a, H, T> HashDBRef<H, T> for &'a mut (dyn HashDB<H, T> + 'a) where
    H: Hasher,