Struct EastAsianTraditionalYearData 

pub struct EastAsianTraditionalYearData {
    packed: PackedEastAsianTraditionalYearData,
    related_iso: i32,
}

Information about a EastAsianTraditional year.

Fields

packed: PackedEastAsianTraditionalYearData

Contains:

• length of each month in the year
• whether or not there is a leap month, and which month it is
• the date of Chinese New Year in the related ISO year

related_iso: i32

Implementations

impl EastAsianTraditionalYearData

pub(super) fn simple( utc_offset: Milliseconds, related_iso: i32, ) -> EastAsianTraditionalYearData

A fast approximation for the Chinese calendar, inspired by the píngqì (平氣) rule used in the Ming dynasty.

Stays anchored in the Gregorian calendar, even as the Gregorian calendar drifts from the seasons in the distant future and distant past.

impl EastAsianTraditionalYearData

pub fn new( related_iso: i32, start_day: RataDie, month_lengths: [bool; 13], leap_month: Option<u8>, ) -> Self

Creates EastAsianTraditionalYearData from the given parts.

start_day is the date for the first day of the year, see Date::to_rata_die to obtain a RataDie from a Date in an arbitrary calendar.

leap_month is the ordinal number of the leap month, for example if a year has months 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, the leap_month would be Some(4).

month_lengths[n - 1] is true if the nth month has 30 days, and false otherwise. The leap month does not necessarily have the same number of days as the previous month, which is why this has length 13. In non-leap years, the last value is ignored.

fn lookup( related_iso: i32, starting_year: i32, data: &[PackedEastAsianTraditionalYearData], ) -> Option<Self>

fn calendrical_calculations<CB: ChineseBased>( related_iso: i32, ) -> EastAsianTraditionalYearData

fn new_year(self) -> RataDie

Get the new year R.D.

Trait Implementations

impl Clone for EastAsianTraditionalYearData

fn clone(&self) -> EastAsianTraditionalYearData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EastAsianTraditionalYearData

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

Formats the value using the given formatter.

impl Ord for EastAsianTraditionalYearData

fn cmp(&self, other: &EastAsianTraditionalYearData) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for EastAsianTraditionalYearData

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for EastAsianTraditionalYearData

fn partial_cmp(&self, other: &EastAsianTraditionalYearData) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl ToExtendedYear for EastAsianTraditionalYearData

fn to_extended_year(&self) -> i32

impl Copy for EastAsianTraditionalYearData

impl Eq for EastAsianTraditionalYearData

impl StructuralPartialEq for EastAsianTraditionalYearData