[−][src]Struct trie_db::FatDBMut
A mutable Trie
implementation which hashes keys and uses a generic HashDB
backing database.
Additionaly it stores inserted hash-key mappings for later retrieval.
Use it as a Trie
or TrieMut
trait object.
Implementations
impl<'db, L> FatDBMut<'db, L> where
L: TrieLayout,
[src]
L: TrieLayout,
pub fn new(
db: &'db mut dyn HashDB<L::Hash, DBValue>,
root: &'db mut TrieHash<L>
) -> Self
[src]
db: &'db mut dyn HashDB<L::Hash, DBValue>,
root: &'db mut TrieHash<L>
) -> Self
Create a new trie with the backing database db
and empty root
Initialise to the state entailed by the genesis block.
This guarantees the trie is built correctly.
pub fn from_existing(
db: &'db mut dyn HashDB<L::Hash, DBValue>,
root: &'db mut TrieHash<L>
) -> Result<Self, TrieHash<L>, CError<L>>
[src]
db: &'db mut dyn HashDB<L::Hash, DBValue>,
root: &'db mut TrieHash<L>
) -> Result<Self, TrieHash<L>, CError<L>>
Create a new trie with the backing database db
and root
.
Returns an error if root does not exist.
pub fn db(&self) -> &dyn HashDB<L::Hash, DBValue>
[src]
Get the backing database.
pub fn db_mut(&mut self) -> &mut dyn HashDB<L::Hash, DBValue>
[src]
Get the backing database.
Trait Implementations
impl<'db, L> TrieMut<L> for FatDBMut<'db, L> where
L: TrieLayout,
[src]
L: TrieLayout,
fn root(&mut self) -> &TrieHash<L>
[src]
fn is_empty(&self) -> bool
[src]
fn contains(&self, key: &[u8]) -> Result<bool, TrieHash<L>, CError<L>>
[src]
fn get<'a, 'key>(
&'a self,
key: &'key [u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>> where
'a: 'key,
[src]
&'a self,
key: &'key [u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>> where
'a: 'key,
fn insert(
&mut self,
key: &[u8],
value: &[u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>>
[src]
&mut self,
key: &[u8],
value: &[u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>>
fn remove(
&mut self,
key: &[u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>>
[src]
&mut self,
key: &[u8]
) -> Result<Option<DBValue>, TrieHash<L>, CError<L>>
Auto Trait Implementations
impl<'db, L> !RefUnwindSafe for FatDBMut<'db, L>
impl<'db, L> Send for FatDBMut<'db, L> where
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Send,
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Send,
impl<'db, L> Sync for FatDBMut<'db, L> where
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Sync,
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Sync,
impl<'db, L> Unpin for FatDBMut<'db, L> where
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Unpin,
<L as TrieLayout>::Hash: Hasher,
<<L as TrieLayout>::Hash as Hasher>::Out: Unpin,
impl<'db, L> !UnwindSafe for FatDBMut<'db, L>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
[src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
[src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut Tⓘ
[src]
impl<T> From<T> for T
[src]
impl<T, U> Into<U> for T where
U: From<T>,
[src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
[src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
[src]
U: TryFrom<T>,