Struct icu::calendar::cal::Julian

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pub struct Julian;
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The Julian Calendar

The Julian calendar is a solar calendar that was used commonly historically, with twelve months.

This type can be used with Date or DateTime to represent dates in this calendar.

§Era codes

This calendar supports two era codes: "bce", and "ce", corresponding to the BCE/BC and CE/AD eras

§Month codes

This calendar supports 12 solar month codes ("M01" - "M12")

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impl Julian

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pub fn new() -> Julian

Construct a new Julian Calendar

Trait Implementations§

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impl Calendar for Julian

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fn year(&self, date: &<Julian as Calendar>::DateInner) -> YearInfo

The calendar-specific year represented by date Julian has the same era scheme as Gregorian

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fn month(&self, date: &<Julian as Calendar>::DateInner) -> MonthInfo

The calendar-specific month represented by date

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fn day_of_month(&self, date: &<Julian as Calendar>::DateInner) -> DayOfMonth

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

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type DateInner = JulianDateInner

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<<Julian 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>) -> JulianDateInner

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

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

Calculate the day of the week and return it
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fn is_in_leap_year(&self, date: &<Julian as Calendar>::DateInner) -> bool

Calculate if a date is in a leap year
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fn day_of_year_info( &self, date: &<Julian as Calendar>::DateInner, ) -> DayOfYearInfo

Information of the day of the year
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fn debug_name(&self) -> &'static str

Obtain a name for the calendar for debug printing
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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 Clone for Julian

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fn clone(&self) -> Julian

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 Julian

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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 Julian

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fn default() -> Julian

Returns the “default value” for a type. Read more
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impl Hash for Julian

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fn hash<__H>(&self, state: &mut __H)
where __H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for Julian

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fn cmp(&self, other: &Julian) -> 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 Julian

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fn eq(&self, other: &Julian) -> 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 Julian

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fn partial_cmp(&self, other: &Julian) -> 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 Copy for Julian

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impl Eq for Julian

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impl StructuralPartialEq for Julian

Auto Trait Implementations§

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impl Freeze for Julian

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impl RefUnwindSafe for Julian

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impl Send for Julian

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impl Sync for Julian

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impl Unpin for Julian

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impl UnwindSafe for Julian

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> GetField<T> for T
where T: Copy,

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fn get_field(&self) -> T

Returns the value of this trait’s field T.
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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,