Struct PrefixSetMut
pub struct PrefixSetMut { /* private fields */ }
Expand description
A container for efficiently storing and checking for the presence of key prefixes.
This data structure stores a set of Nibbles
and provides methods to insert
new elements and check whether any existing element has a given prefix.
Internally, this implementation uses a Vec
and aims to act like a BTreeSet
in being both
sorted and deduplicated. It does this by keeping a sorted
flag. The sorted
flag represents
whether or not the Vec
is definitely sorted. When a new element is added, it is set to
false.
. The Vec
is sorted and deduplicated when sorted
is true
and:
- An element is being checked for inclusion (
contains
), or - The set is being converted into an immutable
PrefixSet
(freeze
)
This means that a PrefixSet
will always be sorted and deduplicated when constructed from a
PrefixSetMut
.
§Examples
use reth_trie_common::{prefix_set::PrefixSetMut, Nibbles};
let mut prefix_set_mut = PrefixSetMut::default();
prefix_set_mut.insert(Nibbles::from_nibbles_unchecked(&[0xa, 0xb]));
prefix_set_mut.insert(Nibbles::from_nibbles_unchecked(&[0xa, 0xb, 0xc]));
let mut prefix_set = prefix_set_mut.freeze();
assert!(prefix_set.contains(&[0xa, 0xb]));
assert!(prefix_set.contains(&[0xa, 0xb, 0xc]));
Implementations§
§impl PrefixSetMut
impl PrefixSetMut
pub fn with_capacity(capacity: usize) -> PrefixSetMut
pub fn with_capacity(capacity: usize) -> PrefixSetMut
Create PrefixSetMut
with pre-allocated capacity.
pub const fn all() -> PrefixSetMut
pub const fn all() -> PrefixSetMut
Create PrefixSetMut
that considers all key changed.
pub fn extend(&mut self, other: PrefixSetMut)
pub fn extend(&mut self, other: PrefixSetMut)
Extend prefix set with contents of another prefix set.
pub fn extend_keys<I>(&mut self, keys: I)where
I: IntoIterator<Item = Nibbles>,
pub fn extend_keys<I>(&mut self, keys: I)where
I: IntoIterator<Item = Nibbles>,
Extend prefix set keys with contents of provided iterator.
Trait Implementations§
§impl Clone for PrefixSetMut
impl Clone for PrefixSetMut
§fn clone(&self) -> PrefixSetMut
fn clone(&self) -> PrefixSetMut
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more§impl Debug for PrefixSetMut
impl Debug for PrefixSetMut
§impl Default for PrefixSetMut
impl Default for PrefixSetMut
§fn default() -> PrefixSetMut
fn default() -> PrefixSetMut
§impl<I> From<I> for PrefixSetMutwhere
I: IntoIterator<Item = Nibbles>,
impl<I> From<I> for PrefixSetMutwhere
I: IntoIterator<Item = Nibbles>,
§fn from(value: I) -> PrefixSetMut
fn from(value: I) -> PrefixSetMut
§impl PartialEq for PrefixSetMut
impl PartialEq for PrefixSetMut
impl Eq for PrefixSetMut
impl StructuralPartialEq for PrefixSetMut
Auto Trait Implementations§
impl Freeze for PrefixSetMut
impl RefUnwindSafe for PrefixSetMut
impl Send for PrefixSetMut
impl Sync for PrefixSetMut
impl Unpin for PrefixSetMut
impl UnwindSafe for PrefixSetMut
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Size: 32 bytes