Struct trie_db::TrieFactory

pub struct TrieFactory<H: Hasher, C: NodeCodec<H>> { /* fields omitted */ }

Trie factory.

Methods

impl<'db, H, C> TrieFactory<H, C> where
    H: Hasher,
    C: NodeCodec<H> + 'db, 

pub fn new(spec: TrieSpec) -> Self

Creates new factory.

pub fn readonly(
    &self,
    db: &'db dyn HashDBRef<H, DBValue>,
    root: &'db H::Out
) -> Result<TrieKinds<'db, H, C>, H::Out, <C as NodeCodec<H>>::Error>

Create new immutable instance of Trie.

pub fn create(
    &self,
    db: &'db mut dyn HashDB<H, DBValue>,
    root: &'db mut H::Out
) -> Box<dyn TrieMut<H, C> + 'db>

Create new mutable instance of Trie.

pub fn from_existing(
    &self,
    db: &'db mut dyn HashDB<H, DBValue>,
    root: &'db mut H::Out
) -> Result<Box<dyn TrieMut<H, C> + 'db>, H::Out, <C as NodeCodec<H>>::Error>

Create new mutable instance of trie and check for errors.

pub fn is_fat(&self) -> bool

Returns true iff the trie DB is a fat DB (allows enumeration of keys).

Trait Implementations

impl<H: Clone + Hasher, C: Clone + NodeCodec<H>> Clone for TrieFactory<H, C>

fn clone(&self) -> TrieFactory<H, C>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<H: Default + Hasher, C: Default + NodeCodec<H>> Default for TrieFactory<H, C>

fn default() -> TrieFactory<H, C>

Returns the "default value" for a type.