Struct trie_db::TrieDBRawIterator

pub struct TrieDBRawIterator<L: TrieLayout> { /* private fields */ }

Iterator for going through all nodes in the trie in pre-order traversal order.

Implementations

impl<L: TrieLayout> TrieDBRawIterator<L>

pub fn empty() -> Self

Create a new empty iterator.

pub fn new(db: &TrieDB<'_, '_, L>) -> Result<Self, TrieHash<L>, CError<L>>

Create a new iterator.

pub fn new_prefixed(
    db: &TrieDB<'_, '_, L>,
    prefix: &[u8]
) -> Result<Self, TrieHash<L>, CError<L>>

Create a new iterator, but limited to a given prefix.

pub fn new_prefixed_then_seek(
    db: &TrieDB<'_, '_, L>,
    prefix: &[u8],
    start_at: &[u8]
) -> Result<Self, TrieHash<L>, CError<L>>

Create a new iterator, but limited to a given prefix. It then do a seek operation from prefixed context (using seek lose prefix context by default).

pub fn next_item(
    &mut self,
    db: &TrieDB<'_, '_, L>
) -> Option<TrieItem<TrieHash<L>, CError<L>>>

Fetches the next trie item.

Must be called with the same db as when the iterator was created.

pub fn next_key(
    &mut self,
    db: &TrieDB<'_, '_, L>
) -> Option<TrieKeyItem<TrieHash<L>, CError<L>>>

Fetches the next key.

Must be called with the same db as when the iterator was created.