Enum icu::datetime::options::FractionalSecondDigits

#[non_exhaustive]
pub enum FractionalSecondDigits {
    F0,
    F1,
    F2,
    F3,
    F4,
    F5,
    F6,
    F7,
    F8,
    F9,
}

A specification for how many fractional second digits to display.

For example, to display the time with millisecond precision, use FractionalSecondDigits::F3.

Lower-precision digits will be truncated.

Examples

Times can be displayed with a custom number of fractional digits from 0-9:

use icu::calendar::Gregorian;
use icu::calendar::Time;
use icu::datetime::fieldsets::T;
use icu::datetime::options::FractionalSecondDigits;
use icu::datetime::options::TimePrecision;
use icu::datetime::FixedCalendarDateTimeFormatter;
use icu::locale::locale;
use writeable::assert_writeable_eq;

let formatter = FixedCalendarDateTimeFormatter::<(), _>::try_new(
    locale!("en-US").into(),
    T::short().with_time_precision(TimePrecision::SecondExact(
        FractionalSecondDigits::F2,
    )),
)
.unwrap();

assert_writeable_eq!(
    formatter.format(&Time::try_new(16, 12, 20, 543200000).unwrap()),
    "4:12:20.54 PM"
);

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

F0

Zero fractional digits. This is the default.

F1

One fractional digit (tenths of a second).

F2

Two fractional digits (hundredths of a second).

F3

Three fractional digits (thousandths of a second).

F4

Four fractional digits.

F5

Five fractional digits.

F6

Six fractional digits.

F7

Seven fractional digits.

F8

Eight fractional digits.

F9

Nine fractional digits.

Trait Implementations

impl Clone for FractionalSecondDigits

fn clone(&self) -> FractionalSecondDigits

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FractionalSecondDigits

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FractionalSecondDigits

fn deserialize<__D>( __deserializer: __D, ) -> Result<FractionalSecondDigits, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for FractionalSecondDigits

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

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FractionalSecondDigits

fn eq(&self, other: &FractionalSecondDigits) -> 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 Serialize for FractionalSecondDigits

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<u8> for FractionalSecondDigits

type Error = FractionalSecondError

The type returned in the event of a conversion error.

fn try_from( value: u8, ) -> Result<FractionalSecondDigits, <FractionalSecondDigits as TryFrom<u8>>::Error>

Performs the conversion.

impl Copy for FractionalSecondDigits

impl Eq for FractionalSecondDigits

impl StructuralPartialEq for FractionalSecondDigits