mat-clockwork-cron 2.8.29

A cron expression parser that's safe to use in the Solana runtime
Documentation 
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use crate::{
    ordinal::{
        Ordinal,
        OrdinalSet,
    },
    time_unit::TimeUnitField,
};
use std::borrow::Cow;

#[derive(Clone, Debug, Eq)]
pub struct DaysOfMonth {
    ordinals: Option<OrdinalSet>,
}

impl TimeUnitField for DaysOfMonth {
    fn from_optional_ordinal_set(ordinal_set: Option<OrdinalSet>) -> Self {
        DaysOfMonth {
            ordinals: ordinal_set,
        }
    }
    fn name() -> Cow<'static, str> {
        Cow::from("Days of Month")
    }
    fn inclusive_min() -> Ordinal {
        1
    }
    fn inclusive_max() -> Ordinal {
        31
    }
    fn ordinals(&self) -> OrdinalSet {
        match self.ordinals.clone() {
            Some(ordinal_set) => ordinal_set,
            None => DaysOfMonth::supported_ordinals(),
        }
    }
}

impl PartialEq for DaysOfMonth {
    fn eq(&self, other: &DaysOfMonth) -> bool {
        self.ordinals() == other.ordinals()
    }
}