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use core::convert::TryFrom;
use core::fmt;
use core::num::NonZeroU8;
use self::Month::*;
use crate::error;
#[allow(clippy::missing_docs_in_private_items)]
#[repr(u8)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum Month {
January = 1,
February = 2,
March = 3,
April = 4,
May = 5,
June = 6,
July = 7,
August = 8,
September = 9,
October = 10,
November = 11,
December = 12,
}
impl Month {
pub(crate) const fn from_number(n: NonZeroU8) -> Result<Self, error::ComponentRange> {
match n.get() {
1 => Ok(January),
2 => Ok(February),
3 => Ok(March),
4 => Ok(April),
5 => Ok(May),
6 => Ok(June),
7 => Ok(July),
8 => Ok(August),
9 => Ok(September),
10 => Ok(October),
11 => Ok(November),
12 => Ok(December),
n => Err(error::ComponentRange {
name: "month",
minimum: 1,
maximum: 12,
value: n as _,
conditional_range: false,
}),
}
}
pub const fn previous(self) -> Self {
match self {
January => December,
February => January,
March => February,
April => March,
May => April,
June => May,
July => June,
August => July,
September => August,
October => September,
November => October,
December => November,
}
}
pub const fn next(self) -> Self {
match self {
January => February,
February => March,
March => April,
April => May,
May => June,
June => July,
July => August,
August => September,
September => October,
October => November,
November => December,
December => January,
}
}
}
impl fmt::Display for Month {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.write_str(match self {
January => "January",
February => "February",
March => "March",
April => "April",
May => "May",
June => "June",
July => "July",
August => "August",
September => "September",
October => "October",
November => "November",
December => "December",
})
}
}
impl From<Month> for u8 {
fn from(month: Month) -> Self {
month as _
}
}
impl TryFrom<u8> for Month {
type Error = error::ComponentRange;
fn try_from(value: u8) -> Result<Self, Self::Error> {
match NonZeroU8::new(value) {
Some(value) => Self::from_number(value),
None => Err(error::ComponentRange {
name: "month",
minimum: 1,
maximum: 12,
value: 0,
conditional_range: false,
}),
}
}
}