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

• CDB
• 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.
• Hasher
• Trie

Functions

• verify_proof