Struct HijriObservational

pub struct HijriObservational { /* private fields */ }

The observational Hijri Calendar

Era codes

This calendar uses a single era code, islamic (alias ah), Anno Hegirae.

Month codes

This calendar is a pure lunar calendar with no leap months. It uses month codes "M01" - "M12".

Implementations

impl HijriObservational

pub const fn new() -> Self

Creates a new HijriObservational with some compiled data containing precomputed calendrical calculations.

✨ Enabled with the compiled_data Cargo feature.

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

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

✨ Enabled with the serde feature.

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pub fn try_new_unstable<D: DataProvider<CalendarHijriObservationalV1> + ?Sized>( provider: &D, ) -> Result<Self, 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.

pub fn new_always_calculating() -> Self

Construct a new HijriObservational without any precomputed calendrical calculations.

Trait Implementations

impl Calendar for HijriObservational

type DateInner = HijriDateInner

The internal type used to represent dates

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

Construct a date from era/month codes and fields

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

Construct the date from an ISO date

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

Obtain an ISO date from this date

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

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

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

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

Calculate the day of the week and return it

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

Obtain a name for the calendar for debug printing

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

Information about the year

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

Calculate if a date is in a leap year

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

The calendar-specific month represented by date

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

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

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

Information of the day of the year

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

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

impl Clone for HijriObservational

fn clone(&self) -> HijriObservational

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HijriObservational

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

Formats the value using the given formatter.

impl Default for HijriObservational

fn default() -> HijriObservational

Returns the “default value” for a type.

impl From<HijriObservational> for AnyCalendar

fn from(value: HijriObservational) -> AnyCalendar

Converts to this type from the input type.

impl IntoAnyCalendar for HijriObservational

fn to_any(self) -> AnyCalendar

Convert this calendar into an AnyCalendar, moving it

fn kind(&self) -> AnyCalendarKind

The AnyCalendarKind enum variant associated with this calendar

fn from_any(any: AnyCalendar) -> Result<Self, AnyCalendar>

Move an AnyCalendar into a Self, or returning it as an error if the types do not match.

fn from_any_ref(any: &AnyCalendar) -> Option<&Self>

Convert an AnyCalendar reference into a Self reference.

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

Convert a date for this calendar into an AnyDateInner