Enum trie_db::TrieKinds

pub enum TrieKinds<'db, H: Hasher + 'db, C: NodeCodec<H>> {
    Generic(TrieDB<'db, H, C>),
    Secure(SecTrieDB<'db, H, C>),
    Fat(FatDB<'db, H, C>),
}

All different kinds of tries. This is used to prevent a heap allocation for every created trie.

Variants

Generic(TrieDB<'db, H, C>)

A generic trie db.

Secure(SecTrieDB<'db, H, C>)

A secure trie db.

Fat(FatDB<'db, H, C>)

A fat trie db.

Trait Implementations

impl<'db, H: Hasher, C: NodeCodec<H>> Trie<H, C> for TrieKinds<'db, H, C>

fn root(&self) -> &H::Out

Return the root of the trie.

fn is_empty(&self) -> bool

Is the trie empty?

fn contains(&self, key: &[u8]) -> Result<bool, H::Out, C::Error>

Does the trie contain a given key?

fn get_with<'a, 'key, Q: Query<H>>(
    &'a self,
    key: &'key [u8],
    query: Q
) -> Result<Option<Q::Item>, H::Out, C::Error> where
    'a: 'key, 

Search for the key with the given query parameter. See the docs of the Query trait for more details.

fn iter<'a>(
    &'a self
) -> Result<Box<dyn TrieIterator<H, C, Item = TrieItem<H::Out, C::Error>> + 'a>, H::Out, C::Error>

Returns a depth-first iterator over the elements of trie.

fn get<'a, 'key>(
    &'a self,
    key: &'key [u8]
) -> Result<Option<DBValue>, H::Out, C::Error> where
    'a: 'key, 

What is the value of the given key in this trie?