[−][src]Struct trie_db::sectriedb::SecTrieDB
A Trie
implementation which hashes keys and uses a generic HashDB
backing database.
Use it as a Trie
trait object. You can use raw()
to get the backing TrieDB
object.
Methods
impl<'db, H, C> SecTrieDB<'db, H, C> where
H: Hasher,
C: NodeCodec<H>,
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H: Hasher,
C: NodeCodec<H>,
pub fn new(
db: &'db dyn HashDBRef<H, DBValue>,
root: &'db H::Out
) -> Result<Self, H::Out, C::Error>
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db: &'db dyn HashDBRef<H, DBValue>,
root: &'db H::Out
) -> Result<Self, H::Out, C::Error>
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. Returns an error if root does not exist.
pub fn raw(&self) -> &TrieDB<H, C>
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Get a reference to the underlying raw TrieDB
struct.
pub fn raw_mut(&mut self) -> &mut TrieDB<'db, H, C>
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Get a mutable reference to the underlying raw TrieDB
struct.
Trait Implementations
impl<'db, H, C> Trie<H, C> for SecTrieDB<'db, H, C> where
H: Hasher,
C: NodeCodec<H>,
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H: Hasher,
C: NodeCodec<H>,
fn root(&self) -> &H::Out
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fn contains(&self, key: &[u8]) -> Result<bool, H::Out, C::Error>
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fn get_with<'a, 'key, Q: Query<H>>(
&'a self,
key: &'key [u8],
query: Q
) -> Result<Option<Q::Item>, H::Out, C::Error> where
'a: 'key,
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&'a self,
key: &'key [u8],
query: Q
) -> Result<Option<Q::Item>, H::Out, C::Error> where
'a: 'key,
fn iter<'a>(
&'a self
) -> Result<Box<dyn TrieIterator<H, C, Item = TrieItem<H::Out, C::Error>> + 'a>, H::Out, C::Error>
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&'a self
) -> Result<Box<dyn TrieIterator<H, C, Item = TrieItem<H::Out, C::Error>> + 'a>, H::Out, C::Error>
fn is_empty(&self) -> bool
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Is the trie empty?
fn get<'a, 'key>(
&'a self,
key: &'key [u8]
) -> Result<Option<DBValue>, H::Out, C::Error> where
'a: 'key,
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&'a self,
key: &'key [u8]
) -> Result<Option<DBValue>, H::Out, C::Error> where
'a: 'key,
What is the value of the given key in this trie?
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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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>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,