wtx 0.44.1

A collection of different transport implementations and related tools focused primarily on web technologies.
Documentation 
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use crate::calendar::{CalendarError, Year};

/// Month of the year.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum Month {
  /// 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 Month {
  /// Creates a new instance from a valid `num` number.
  #[inline]
  pub const fn from_num(num: u8) -> Result<Self, CalendarError> {
    Ok(match num {
      1 => Self::January,
      2 => Self::February,
      3 => Self::March,
      4 => Self::April,
      5 => Self::May,
      6 => Self::June,
      7 => Self::July,
      8 => Self::August,
      9 => Self::September,
      10 => Self::October,
      11 => Self::November,
      12 => Self::December,
      _ => return Err(CalendarError::InvalidMonth { received: Some(num) }),
    })
  }

  /// Creates a new instance from a valid short `name` like `Jan` or `Jul`.
  #[inline]
  pub const fn from_short_name(name: &[u8]) -> Result<Self, CalendarError> {
    Ok(match name {
      b"Jan" => Self::January,
      b"Feb" => Self::February,
      b"Mar" => Self::March,
      b"Apr" => Self::April,
      b"May" => Self::May,
      b"Jun" => Self::June,
      b"Jul" => Self::July,
      b"Aug" => Self::August,
      b"Sep" => Self::September,
      b"Oct" => Self::October,
      b"Nov" => Self::November,
      b"Dec" => Self::December,
      _ => return Err(CalendarError::InvalidMonth { received: None }),
    })
  }

  /// The number of days of this month in a given year.
  #[inline]
  pub const fn days(self, year: Year) -> u8 {
    if let Self::February = self {
      if year.is_leap_year() { 29 } else { 28 }
    } else {
      let num = self.num();
      0b0001_1110 | num ^ (num >> 3)
    }
  }

  /// Integer representation
  #[inline]
  pub const fn num(self) -> u8 {
    match self {
      Self::January => 1,
      Self::February => 2,
      Self::March => 3,
      Self::April => 4,
      Self::May => 5,
      Self::June => 6,
      Self::July => 7,
      Self::August => 8,
      Self::September => 9,
      Self::October => 10,
      Self::November => 11,
      Self::December => 12,
    }
  }

  /// String representation
  #[inline]
  pub const fn num_str(self) -> &'static str {
    match self {
      Self::January => "01",
      Self::February => "02",
      Self::March => "03",
      Self::April => "04",
      Self::May => "05",
      Self::June => "06",
      Self::July => "07",
      Self::August => "08",
      Self::September => "09",
      Self::October => "10",
      Self::November => "11",
      Self::December => "12",
    }
  }

  /// Short name like `Jan` or `Jul`.
  #[inline]
  pub const fn short_name(&self) -> &'static str {
    match self {
      Self::January => "Jan",
      Self::February => "Feb",
      Self::March => "Mar",
      Self::April => "Apr",
      Self::May => "May",
      Self::June => "Jun",
      Self::July => "Jul",
      Self::August => "Aug",
      Self::September => "Sep",
      Self::October => "Oct",
      Self::November => "Nov",
      Self::December => "Dec",
    }
  }
}

impl TryFrom<u8> for Month {
  type Error = crate::Error;

  #[inline]
  fn try_from(from: u8) -> Result<Self, Self::Error> {
    Ok(Self::from_num(from)?)
  }
}