Trait trie_db::TrieConfiguration [−][src]
pub trait TrieConfiguration: Sized + TrieLayout { fn trie_build<DB, I, A, B>(
db: &mut DB,
input: I
) -> <Self::Hash as Hasher>::Out
where
DB: HashDB<Self::Hash, usize>,
I: IntoIterator<Item = (A, B)>,
A: AsRef<[u8]> + Ord,
B: AsRef<[u8]>, { ... } fn trie_root<I, A, B>(input: I) -> <Self::Hash as Hasher>::Out
where
I: IntoIterator<Item = (A, B)>,
A: AsRef<[u8]> + Ord,
B: AsRef<[u8]>, { ... } fn trie_root_unhashed<I, A, B>(input: I) -> Vec<u8>ⓘ
where
I: IntoIterator<Item = (A, B)>,
A: AsRef<[u8]> + Ord,
B: AsRef<[u8]>, { ... } fn encode_index(input: u32) -> Vec<u8>ⓘ { ... } fn ordered_trie_root<I, A>(input: I) -> <Self::Hash as Hasher>::Out
where
I: IntoIterator<Item = A>,
A: AsRef<[u8]>, { ... } }
Expand description
This trait associates a trie definition with preferred methods. It also contains own default implementations and can be used to allow switching implementation.
Provided methods
Operation to build a trie db from its ordered iterator over its key/values.
Determines a trie root given its ordered contents, closed form.
Determines a trie root node’s data given its ordered contents, closed form.
Encoding of index as a key (when reusing general trie for indexed trie).
fn ordered_trie_root<I, A>(input: I) -> <Self::Hash as Hasher>::Out where
I: IntoIterator<Item = A>,
A: AsRef<[u8]>,
fn ordered_trie_root<I, A>(input: I) -> <Self::Hash as Hasher>::Out where
I: IntoIterator<Item = A>,
A: AsRef<[u8]>,
A trie root formed from the items, with keys attached according to their
compact-encoded index (using parity-codec
crate).