Struct TrieNodeEpoch 

pub struct TrieNodeEpoch(/* private fields */);

Modification epoch assigned to cached sparse trie nodes.

Epochs must increase monotonically. Nodes materialized from the parent state without being modified use Self::UNMODIFIED.

Implementations

impl TrieNodeEpoch

pub const UNMODIFIED: Self

Epoch assigned to nodes materialized from the parent state without being modified.

pub const fn new(epoch: u64) -> Self

Creates a new node modification epoch.

pub const fn get(self) -> u64

Returns the inner epoch.

pub const fn should_prune(self, prune_before: Self) -> bool

Returns whether a node with this epoch should be pruned at the provided cutoff.

Trait Implementations

impl Clone for TrieNodeEpoch

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TrieNodeEpoch

impl Debug for TrieNodeEpoch

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TrieNodeEpoch

fn default() -> Self

Returns the “default value” for a type.

impl Eq for TrieNodeEpoch

impl Ord for TrieNodeEpoch

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for TrieNodeEpoch

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for TrieNodeEpoch

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for TrieNodeEpoch

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes