Struct VersionNumber 

pub struct VersionNumber(pub u64);

Version number (monotonically increasing)

Version numbers start at 1 (GENESIS) and increment sequentially. Overflow protection is built-in via checked_add.

Examples

use aion_context::types::VersionNumber;

let v1 = VersionNumber::GENESIS;
assert_eq!(v1.as_u64(), 1);

let v2 = v1.next().unwrap();
assert_eq!(v2.as_u64(), 2);

Tuple Fields

0: u64

Implementations

impl VersionNumber

pub const GENESIS: Self

Genesis version (version 1)

pub fn next(self) -> Result<Self>

Get the next version number

Errors

Returns Err if incrementing would overflow u64::MAX

pub const fn as_u64(self) -> u64

Extract the inner u64 value

Trait Implementations

impl Clone for VersionNumber

fn clone(&self) -> VersionNumber

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionNumber

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for VersionNumber

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for VersionNumber

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

Formats the value using the given formatter.

impl Ord for VersionNumber

fn cmp(&self, other: &VersionNumber) -> 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.

impl PartialEq for VersionNumber

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for VersionNumber

fn partial_cmp(&self, other: &VersionNumber) -> 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 Serialize for VersionNumber

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for VersionNumber

impl Eq for VersionNumber

impl StructuralPartialEq for VersionNumber