Struct icu_calendar::dangi::Dangi

source ·
pub struct Dangi {
    data: Option<DataPayload<DangiCacheV1Marker>>,
}
Expand description

The Dangi Calendar

The Dangi Calendar is a lunisolar calendar used traditionally in North and South Korea. It is often used today to track important cultural events and holidays like Seollal (Korean lunar new year). It is similar to the Chinese lunar calendar (see Chinese), except that observations are based in Korea (currently UTC+9) rather than China (UTC+8). This can cause some differences; for example, 2012 was a leap year, but in the Dangi calendar the leap month was 3, while in the Chinese calendar the leap month was 4.

This calendar is currently in a preview state: formatting for this calendar is not going to be perfect.

use icu::calendar::{chinese::Chinese, dangi::Dangi, Date};
use tinystr::tinystr;

let iso_a = Date::try_new_iso_date(2012, 4, 23).unwrap();
let dangi_a = iso_a.to_calendar(Dangi::new());
let chinese_a = iso_a.to_calendar(Chinese::new());

assert_eq!(dangi_a.month().code.0, tinystr!(4, "M03L"));
assert_eq!(chinese_a.month().code.0, tinystr!(4, "M04"));

let iso_b = Date::try_new_iso_date(2012, 5, 23).unwrap();
let dangi_b = iso_b.to_calendar(Dangi::new());
let chinese_b = iso_b.to_calendar(Chinese::new());

assert_eq!(dangi_b.month().code.0, tinystr!(4, "M04"));
assert_eq!(chinese_b.month().code.0, tinystr!(4, "M04L"));

§Era codes

This Calendar supports a single era code “dangi” based on the year -2332 ISO (2333 BCE) as year 1. Typically years will be formatted using cyclic years and the related ISO year.

§Month codes

This calendar is a lunisolar calendar. It supports regular month codes "M01" - "M12" as well as leap month codes "M01L" - "M12L".

Fields§

§data: Option<DataPayload<DangiCacheV1Marker>>

Implementations§

source§

impl Dangi

source

pub const fn new() -> Self

Creates a new Dangi with some precomputed calendrical calculations.

Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

source

pub fn try_new_with_any_provider( provider: &(impl AnyProvider + ?Sized), ) -> Result<Self, CalendarError>

A version of Self::new that uses custom data provided by an AnyProvider.

📚 Help choosing a constructor

source

pub fn try_new_unstable<D: DataProvider<DangiCacheV1Marker> + ?Sized>( provider: &D, ) -> Result<Self, CalendarError>

A version of Self::new that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

⚠️ The bounds on provider may change over time, including in SemVer minor releases.
source

pub fn new_always_calculating() -> Self

Construct a new Dangi without any precomputed calendrical calculations.

source

pub(crate) const DEBUG_NAME: &'static str = "Dangi"

source§

impl Dangi

source

fn format_dangi_year( year: i32, year_info_option: Option<ChineseBasedYearInfo>, ) -> FormattableYear

Get a FormattableYear from an integer Dangi year; optionally, a ChineseBasedYearInfo can be passed in for faster results.

Trait Implementations§

source§

impl Calendar for Dangi

§

type DateInner = DangiDateInner

The internal type used to represent dates
source§

fn date_from_codes( &self, era: Era, year: i32, month_code: MonthCode, day: u8, ) -> Result<Self::DateInner, Error>

Construct a date from era/month codes and fields
source§

fn date_from_iso(&self, iso: Date<Iso>) -> Self::DateInner

Construct the date from an ISO date
source§

fn date_to_iso(&self, date: &Self::DateInner) -> Date<Iso>

Obtain an ISO date from this date
source§

fn months_in_year(&self, date: &Self::DateInner) -> u8

Count the number of months in a given year, specified by providing a date from that year
source§

fn days_in_year(&self, date: &Self::DateInner) -> u16

Count the number of days in a given year, specified by providing a date from that year
source§

fn days_in_month(&self, date: &Self::DateInner) -> u8

Count the number of days in a given month, specified by providing a date from that year/month
source§

fn debug_name(&self) -> &'static str

Obtain a name for the calendar for debug printing
source§

fn year(&self, date: &Self::DateInner) -> FormattableYear

The calendar-specific year represented by date
source§

fn is_in_leap_year(&self, date: &Self::DateInner) -> bool

Calculate if a date is in a leap year
source§

fn month(&self, date: &Self::DateInner) -> FormattableMonth

The calendar-specific month represented by date
source§

fn day_of_month(&self, date: &Self::DateInner) -> DayOfMonth

The calendar-specific day-of-month represented by date
source§

fn day_of_year_info(&self, date: &Self::DateInner) -> DayOfYearInfo

Information of the day of the year
source§

fn day_of_week(&self, date: &Self::DateInner) -> IsoWeekday

Calculate the day of the week and return it
source§

fn any_calendar_kind(&self) -> Option<AnyCalendarKind>

The AnyCalendarKind corresponding to this calendar, if one exists. Implementors outside of icu::calendar should return None
source§

impl ChineseBasedWithDataLoading for Dangi

§

type CB = Dangi

source§

fn get_precomputed_data(&self) -> ChineseBasedPrecomputedData<'_, Self::CB>

Get the compiled const data for a ChineseBased calendar; can return None if the given year does not correspond to any compiled data.
source§

impl Clone for Dangi

source§

fn clone(&self) -> Dangi

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for Dangi

source§

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

Formats the value using the given formatter. Read more
source§

impl Default for Dangi

source§

fn default() -> Dangi

Returns the “default value” for a type. Read more
source§

impl IntoAnyCalendar for Dangi

source§

fn to_any(self) -> AnyCalendar

Convert this calendar into an AnyCalendar, moving it Read more
source§

fn to_any_cloned(&self) -> AnyCalendar

Convert this calendar into an AnyCalendar, cloning it Read more
source§

fn date_to_any(&self, d: &Self::DateInner) -> AnyDateInner

Convert a date for this calendar into an AnyDateInner Read more
source§

impl Ord for Dangi

source§

fn cmp(&self, _: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

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

Compares and returns the maximum of two values. Read more
1.21.0 · source§

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

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
source§

impl PartialEq for Dangi

source§

fn eq(&self, _: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl PartialOrd for Dangi

source§

fn partial_cmp(&self, _: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
source§

impl Eq for Dangi

Auto Trait Implementations§

§

impl Freeze for Dangi

§

impl RefUnwindSafe for Dangi

§

impl !Send for Dangi

§

impl !Sync for Dangi

§

impl Unpin for Dangi

§

impl UnwindSafe for Dangi

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<C> AsCalendar for C
where C: Calendar,

§

type Calendar = C

The calendar being wrapped
source§

fn as_calendar(&self) -> &C

Obtain the inner calendar
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<T> ErasedDestructor for T
where T: 'static,

source§

impl<T> MaybeSendSync for T