Struct trie_db::triedbmut::TrieDBMutBuilder

pub struct TrieDBMutBuilder<'db, L: TrieLayout> { /* private fields */ }

A builder for creating a TrieDBMut.

Implementations

impl<'db, L: TrieLayout> TrieDBMutBuilder<'db, L>

pub fn new(
    db: &'db mut dyn HashDB<L::Hash, DBValue>,
    root: &'db mut TrieHash<L>
) -> Self

Create a builder for constructing a new trie with the backing database db and empty root.

pub fn from_existing(
    db: &'db mut dyn HashDB<L::Hash, DBValue>,
    root: &'db mut TrieHash<L>
) -> Self

Create a builder for constructing a new trie with the backing database db and root.

This doesn’t check if root exists in the given db. If root doesn’t exist it will fail when trying to lookup any key.

pub fn with_cache(self, cache: &'db mut dyn TrieCache<L::Codec>) -> Self

Use the given cache for the db.

pub fn with_optional_cache<'cache: 'db>(
    self,
    cache: Option<&'cache mut dyn TrieCache<L::Codec>>
) -> Self

Use the given optional cache for the db.

pub fn with_recorder(
    self,
    recorder: &'db mut dyn TrieRecorder<TrieHash<L>>
) -> Self

Use the given recorder to record trie accesses.

pub fn with_optional_recorder<'recorder: 'db>(
    self,
    recorder: Option<&'recorder mut dyn TrieRecorder<TrieHash<L>>>
) -> Self

Use the given optional recorder to record trie accesses.

pub fn build(self) -> TrieDBMut<'db, L>

Build the TrieDBMut.