Struct icu::calendar::cal::Dangi

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pub struct Dangi { /* private fields */ }
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::cal::{Chinese, Dangi};
use icu::calendar::Date;
use tinystr::tinystr;

let iso_a = Date::try_new_iso(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().standard_code.0, tinystr!(4, "M03L"));
assert_eq!(chinese_a.month().standard_code.0, tinystr!(4, "M04"));

let iso_b = Date::try_new_iso(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().standard_code.0, tinystr!(4, "M04"));
assert_eq!(chinese_b.month().standard_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".

Implementations§

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impl Dangi

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pub const fn new() -> Dangi

Creates a new Dangi with some precomputed calendrical calculations.

Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

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

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

📚 Help choosing a constructor

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pub fn try_new_with_buffer_provider( provider: &(impl BufferProvider + ?Sized), ) -> Result<Dangi, DataError>

A version of [Self :: new] that uses custom data provided by a BufferProvider.

Enabled with the serde feature.

📚 Help choosing a constructor

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pub fn try_new_unstable<D>(provider: &D) -> Result<Dangi, DataError>

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.
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pub fn new_always_calculating() -> Dangi

Construct a new Dangi without any precomputed calendrical calculations.

Trait Implementations§

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impl Calendar for Dangi

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type DateInner = DangiDateInner

The internal type used to represent dates
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fn date_from_codes( &self, era: Option<Era>, year: i32, month_code: MonthCode, day: u8, ) -> Result<<Dangi as Calendar>::DateInner, DateError>

Construct a date from era/month codes and fields Read more
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fn date_from_iso(&self, iso: Date<Iso>) -> <Dangi as Calendar>::DateInner

Construct the date from an ISO date
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fn date_to_iso(&self, date: &<Dangi as Calendar>::DateInner) -> Date<Iso>

Obtain an ISO date from this date
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fn months_in_year(&self, date: &<Dangi as Calendar>::DateInner) -> u8

Count the number of months in a given year, specified by providing a date from that year
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fn days_in_year(&self, date: &<Dangi as Calendar>::DateInner) -> u16

Count the number of days in a given year, specified by providing a date from that year
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fn days_in_month(&self, date: &<Dangi as Calendar>::DateInner) -> u8

Count the number of days in a given month, specified by providing a date from that year/month
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fn debug_name(&self) -> &'static str

Obtain a name for the calendar for debug printing
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fn year(&self, date: &<Dangi as Calendar>::DateInner) -> YearInfo

Information about the year
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fn is_in_leap_year(&self, date: &<Dangi as Calendar>::DateInner) -> bool

Calculate if a date is in a leap year
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fn month(&self, date: &<Dangi as Calendar>::DateInner) -> MonthInfo

The calendar-specific month represented by date
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fn day_of_month(&self, date: &<Dangi as Calendar>::DateInner) -> DayOfMonth

The calendar-specific day-of-month represented by date
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fn day_of_year_info( &self, date: &<Dangi as Calendar>::DateInner, ) -> DayOfYearInfo

Information of the day of the year
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fn day_of_week(&self, date: &<Dangi as Calendar>::DateInner) -> IsoWeekday

Calculate the day of the week and return it
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fn any_calendar_kind(&self) -> Option<AnyCalendarKind>

The AnyCalendarKind corresponding to this calendar, if one exists. Implementors outside of icu::calendar should return None
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impl CldrCalendar for Dangi

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type YearNamesV1Marker = DangiYearNamesV1Marker

The data marker for loading year symbols for this calendar.
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type MonthNamesV1Marker = DangiMonthNamesV1Marker

The data marker for loading month symbols for this calendar.
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type SkeletaV1Marker = DangiDateNeoSkeletonPatternsV1Marker

The data marker for loading skeleton patterns for this calendar.
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impl Clone for Dangi

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fn clone(&self) -> Dangi

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Dangi

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

Formats the value using the given formatter. Read more
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impl Default for Dangi

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fn default() -> Dangi

Returns the “default value” for a type. Read more
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impl From<Dangi> for AnyCalendar

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fn from(value: Dangi) -> AnyCalendar

Converts to this type from the input type.
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impl IntoAnyCalendar for Dangi

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fn to_any(self) -> AnyCalendar

Convert this calendar into an AnyCalendar, moving it Read more
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fn kind(&self) -> AnyCalendarKind

The AnyCalendarKind enum variant associated with this calendar
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fn to_any_cloned(&self) -> AnyCalendar

Convert this calendar into an AnyCalendar, cloning it Read more
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fn from_any(any: AnyCalendar) -> Result<Dangi, AnyCalendar>

Move an AnyCalendar into a Self, or returning it as an error if the types do not match. Read more
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fn from_any_ref(any: &AnyCalendar) -> Option<&Dangi>

Convert an AnyCalendar reference into a Self reference. Read more
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fn date_to_any(&self, d: &<Dangi as Calendar>::DateInner) -> AnyDateInner

Convert a date for this calendar into an AnyDateInner Read more
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impl Ord for Dangi

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for Dangi

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

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

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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impl UnstableSealed for Dangi

Auto Trait Implementations§

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impl Freeze for Dangi

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impl RefUnwindSafe for Dangi

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impl Send for Dangi

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impl Sync for Dangi

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impl Unpin for Dangi

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impl UnwindSafe for Dangi

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<C> AsCalendar for C
where C: Calendar,

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type Calendar = C

The calendar being wrapped
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fn as_calendar(&self) -> &C

Obtain the inner calendar
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T
where T: Send + Sync,