Struct Cron 

pub struct Cron { /* private fields */ }

A parsed cron expression.

Implementations

impl Cron

pub fn parse(expression: &str) -> Result<Cron>

Parse a five-field expression.

pub fn expression(&self) -> &str

The normalised expression this was parsed from.

pub fn matches(&self, at: &DateTime) -> bool

Whether a given moment is one this expression selects.

Seconds are ignored: cron’s resolution is a minute.

pub fn next_after(&self, after: i64) -> Option<i64>

The first matching moment strictly after after, in epoch seconds.

None when the expression describes a date that never occurs — 0 0 30 2 *, the thirtieth of February. Answering rather than looping forever is the whole reason this returns an Option.

Trait Implementations

impl Clone for Cron

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Cron

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

Formats the value using the given formatter.

impl Eq for Cron

impl PartialEq for Cron

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Cron