use std::{borrow::Cow, sync::LazyLock};
use crate::{
ordinal::{Ordinal, OrdinalSet},
time_unit::TimeUnitField,
};
static ALL: LazyLock<OrdinalSet> = LazyLock::new(DaysOfMonth::supported_ordinals);
#[derive(Clone, Eq, Debug)]
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 {
Some(ordinal_set) => ordinal_set,
None => &ALL,
}
}
}
impl PartialEq for DaysOfMonth {
fn eq(&self, other: &DaysOfMonth) -> bool {
self.ordinals() == other.ordinals()
}
}