Crate cita_trie

Usage

use std::sync::Arc;

use hasher::{Hasher, HasherKeccak}; // https://crates.io/crates/hasher

use cita_trie::MemoryDB;
use cita_trie::{PatriciaTrie, Trie};
fn main() {
    let memdb = Arc::new(MemoryDB::new(true));
    let hasher = Arc::new(HasherKeccak::new());

    let key = "test-key".as_bytes();
    let value = "test-value".as_bytes();

    let root = {
        let mut trie = PatriciaTrie::new(Arc::clone(&memdb), Arc::clone(&hasher));
        trie.insert(key.to_vec(), value.to_vec()).unwrap();

        let v = trie.get(key).unwrap();
        assert_eq!(Some(value.to_vec()), v);
        trie.root().unwrap()
    };

    let mut trie = PatriciaTrie::from(Arc::clone(&memdb), Arc::clone(&hasher), &root).unwrap();
    let exists = trie.contains(key).unwrap();
    assert_eq!(exists, true);
    let removed = trie.remove(key).unwrap();
    assert_eq!(removed, true);
    let new_root = trie.root().unwrap();
    println!("new root = {:?}", new_root);

}

Structs

MemoryDB
PatriciaTrie

Enums

MemDBError
TrieError

Traits

DB	"DB" defines the "trait" of trie and database interaction. You should first write the data to the cache and write the data to the database in bulk after the end of a set of operations.
Trie