1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
use bigint::hash::H256;
use keccak::keccak;
use hashdb::{HashDB, DBValue};
use super::triedbmut::TrieDBMut;
use super::TrieMut;
pub struct SecTrieDBMut<'db> {
raw: TrieDBMut<'db>
}
impl<'db> SecTrieDBMut<'db> {
pub fn new(db: &'db mut HashDB, root: &'db mut H256) -> Self {
SecTrieDBMut { raw: TrieDBMut::new(db, root) }
}
pub fn from_existing(db: &'db mut HashDB, root: &'db mut H256) -> super::Result<Self> {
Ok(SecTrieDBMut { raw: TrieDBMut::from_existing(db, root)? })
}
pub fn db(&self) -> &HashDB { self.raw.db() }
pub fn db_mut(&mut self) -> &mut HashDB { self.raw.db_mut() }
}
impl<'db> TrieMut for SecTrieDBMut<'db> {
fn root(&mut self) -> &H256 {
self.raw.root()
}
fn is_empty(&self) -> bool {
self.raw.is_empty()
}
fn contains(&self, key: &[u8]) -> super::Result<bool> {
self.raw.contains(&keccak(key))
}
fn get<'a, 'key>(&'a self, key: &'key [u8]) -> super::Result<Option<DBValue>>
where 'a: 'key
{
self.raw.get(&keccak(key))
}
fn insert(&mut self, key: &[u8], value: &[u8]) -> super::Result<Option<DBValue>> {
self.raw.insert(&keccak(key), value)
}
fn remove(&mut self, key: &[u8]) -> super::Result<Option<DBValue>> {
self.raw.remove(&keccak(key))
}
}
#[test]
fn sectrie_to_trie() {
use memorydb::*;
use super::triedb::*;
use super::Trie;
let mut memdb = MemoryDB::new();
let mut root = H256::default();
{
let mut t = SecTrieDBMut::new(&mut memdb, &mut root);
t.insert(&[0x01u8, 0x23], &[0x01u8, 0x23]).unwrap();
}
let t = TrieDB::new(&memdb, &root).unwrap();
assert_eq!(t.get(&keccak(&[0x01u8, 0x23])).unwrap().unwrap(), DBValue::from_slice(&[0x01u8, 0x23]));
}