Struct FormatVersion 

pub struct FormatVersion {
    pub major: u32,
    pub minor: u32,
}

A MAJOR.MINOR wire format version.

Fields

major: u32

Incremented by any change an older reader would misread.

minor: u32

Incremented by additions: a node kind, a variant, an optional field.

Implementations

impl FormatVersion

pub const fn new(major: u32, minor: u32) -> Self

The version major.minor.

pub fn parse(text: &str) -> Option<Self>

Parse "MAJOR.MINOR", two decimal integers; None for anything else.

pub const fn reads(self, payload: Self) -> bool

Whether a reader of this version reads a payload of payload: the same major, and a minor no newer than its own.

Trait Implementations

impl Clone for FormatVersion

fn clone(&self) -> FormatVersion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FormatVersion

impl Debug for FormatVersion

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

Formats the value using the given formatter.

impl Display for FormatVersion

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

Formats the value using the given formatter.

impl Eq for FormatVersion

impl Hash for FormatVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for FormatVersion

fn cmp(&self, other: &FormatVersion) -> 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 FormatVersion

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for FormatVersion

fn partial_cmp(&self, other: &FormatVersion) -> 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 FormatVersion