Struct Epoch 

pub struct Epoch(pub usize);

An epoch of a package

Epoch is used to indicate the downgrade of a package and is prepended to a version, delimited by a ":" (e.g. 1: is added to 0.10.0-1 to form 1:0.10.0-1 which then orders newer than 1.0.0-1). See alpm-epoch for details on the format.

An Epoch wraps a usize.

Examples

use std::str::FromStr;

use alpm_types::Epoch;

assert!(Epoch::from_str("0").is_ok());
assert!(Epoch::from_str("1").is_ok());

Tuple Fields

0: usize

Implementations

impl Epoch

pub fn new(epoch: usize) -> Self

Create a new Epoch

Trait Implementations

impl AlpmParser for Epoch

fn parser(input: &mut &str) -> ModalResult<Self>

Recognizes an Epoch in a string slice.

Errors

Returns an error if input does not begin with a valid alpm_epoch.

fn delimiter_error_context<'a, O, P>( parser: P, ) -> impl Parser<&'a str, O, ErrMode<ContextError>>

where P: Parser<&'a str, O, ErrMode<ContextError>>,

Attaches a winnow error context to the parser when a parse error is encountered.

impl Clone for Epoch

fn clone(&self) -> Epoch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Epoch

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Epoch

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Epoch

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

Formats the value using the given formatter.

impl FromStr for Epoch

fn from_str(s: &str) -> Result<Self, Self::Err>

Create an Epoch from a string and return it in a Result

type Err = Error

The associated error which can be returned from parsing.

impl Ord for Epoch

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

fn eq(&self, other: &Epoch) -> 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 Epoch

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

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 Epoch

impl Eq for Epoch

impl StructuralPartialEq for Epoch