Enum icu_datetime::fields::DayPeriod

#[repr(u8)]
pub enum DayPeriod {
    AmPm = 0,
    NoonMidnight = 1,
}

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

Variants

AmPm = 0

Field symbol for the AM, PM day period. (Does not include noon, midnight.)

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

For more details, see documentation on date field symbols.

NoonMidnight = 1

Field symbol for the am, pm, noon, midnight day period.

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

For more details, see documentation on date field symbols.

Implementations

impl DayPeriod

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 DayPeriod

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 DayPeriod

type ULE = DayPeriodULE

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 DayPeriod

fn clone(&self) -> DayPeriod

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DayPeriod

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

Formats the value using the given formatter.

impl From<DayPeriod> for FieldSymbol

fn from(input: DayPeriod) -> Self

Converts to this type from the input type.

impl From<DayPeriod> for char

fn from(input: DayPeriod) -> char

Converts to this type from the input type.

impl Ord for DayPeriod

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

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

fn partial_cmp(&self, other: &DayPeriod) -> 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 DayPeriod

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 DayPeriod

where Self: Sized,

type Output = DayPeriod

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, DayPeriod> for DayPeriod

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 DayPeriod

type Container = ZeroVec<'a, DayPeriod>

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

type Slice = ZeroSlice<DayPeriod>

type GetType = DayPeriodULE

The type produced by Container::get()

type OwnedType = DayPeriod

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 DayPeriod

impl Eq for DayPeriod

impl StructuralPartialEq for DayPeriod