Enum icu_datetime::fields::Day

#[repr(u8)]
pub enum Day {
    DayOfMonth = 0,
    DayOfYear = 1,
    DayOfWeekInMonth = 2,
    ModifiedJulianDay = 3,
}

An enum for the possible symbols of a day field in a date pattern.

Variants

DayOfMonth = 0

Field symbol for day of month (numeric).

This field symbol is represented by the character d in a date formatting pattern string.

For more details, see documentation on date field symbols.

DayOfYear = 1

Field symbol for day of year (numeric).

This field symbol is represented by the character D in a date formatting pattern string.

For more details, see documentation on date field symbols.

DayOfWeekInMonth = 2

Field symbol for the day of week occurrence relative to the month (numeric).

For the example "2nd Wed in July", this field would provide "2". Should likely be paired with the Weekday field.

This field symbol is represented by the character F in a date formatting pattern string.

For more details, see documentation on date field symbols.

ModifiedJulianDay = 3

Field symbol for the modified Julian day (numeric).

The value of this field differs from the conventional Julian day number in a couple of ways, which are based on measuring relative to the local time zone.

This field symbol is represented by the character g in a date formatting pattern string.

For more details, see documentation on date field symbols.

Implementations

impl Day

pub(crate) fn new_from_u8(value: u8) -> Option<Self>

Attempt to construct the value from its corresponding integer, returning None if not possible

impl Day

pub(crate) fn idx(self) -> u8

Retrieves an index of the field variant.

Examples

use icu::datetime::fields::Month;

assert_eq!(Month::StandAlone::idx(), 1);

Stability

This is mostly useful for serialization, and does not guarantee index stability between ICU4X versions.

pub(crate) fn from_idx(idx: u8) -> Result<Self, SymbolError>

Retrieves a field variant from an index.

Examples

use icu::datetime::fields::Month;

assert_eq!(Month::from_idx(0), Month::Format);

Stability

This is mostly useful for serialization, and does not guarantee index stability between ICU4X versions.

Trait Implementations

impl AsULE for Day

type ULE = DayULE

The ULE type corresponding to Self.

fn to_unaligned(self) -> Self::ULE

Converts from Self to Self::ULE.

fn from_unaligned(other: Self::ULE) -> Self

Converts from Self::ULE to Self.

impl Clone for Day

fn clone(&self) -> Day

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Day

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

Formats the value using the given formatter.

impl From<Day> for FieldSymbol

fn from(input: Day) -> Self

Converts to this type from the input type.

impl From<Day> for char

fn from(input: Day) -> char

Converts to this type from the input type.

impl Ord for Day

fn cmp(&self, other: &Day) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for Day

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

fn partial_cmp(&self, other: &Day) -> 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 TryFrom<char> for Day

type Error = SymbolError

The type returned in the event of a conversion error.

fn try_from(ch: char) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> Yokeable<'a> for Day

where Self: Sized,

type Output = Day

This type MUST be Self with the 'static replaced with 'a, i.e. Self<'a>

fn transform(&self) -> &Self::Output

This method must cast self between &'a Self<'static> and &'a Self<'a>.

fn transform_owned(self) -> Self::Output

This method must cast self between Self<'static> and Self<'a>.

unsafe fn make(this: Self::Output) -> Self

This method can be used to cast away Self<'a>’s lifetime.

fn transform_mut<F>(&'a mut self, f: F)

where F: 'static + for<'b> FnOnce(&'b mut Self::Output),

This method must cast self between &'a mut Self<'static> and &'a mut Self<'a>, and pass it to f.

impl<'zf> ZeroFrom<'zf, Day> for Day

fn zero_from(this: &'zf Self) -> Self

Clone the other C into a struct that may retain references into C.

impl<'a> ZeroMapKV<'a> for Day

type Container = ZeroVec<'a, Day>

The container that can be used with this type: ZeroVec or VarZeroVec.

type Slice = ZeroSlice<Day>

type GetType = DayULE

The type produced by Container::get()

type OwnedType = Day

The type produced by Container::replace() and Container::remove(), also used during deserialization. If Self is human readable serialized, deserializing to Self::OwnedType should produce the same value once passed through Self::owned_as_self()

impl Copy for Day

impl Eq for Day

impl StructuralPartialEq for Day