Struct Location

pub struct Location;

“Chicago Time” ⇒ time zone in location format

Examples

use icu::datetime::input::Date;
use icu::datetime::input::{Time, TimeZone,TimeZoneInfo,  UtcOffset};
use icu::datetime::NoCalendarFormatter;
use icu::time::zone::TimeZoneVariant;
use icu::datetime::fieldsets::zone::Location;
use icu::locale::locale;
use tinystr::tinystr;
use writeable::assert_writeable_eq;

let fmt = NoCalendarFormatter::try_new(
    locale!("en").into(),
    Location
)
.unwrap();

// Time zone info for America/Chicago in the summer
let zone = TimeZone(tinystr!(8, "uschi"))
    .with_offset("-05".parse().ok())
    .at_time((Date::try_new_iso(2022, 8, 29).unwrap(), Time::midnight()))
    .with_zone_variant(TimeZoneVariant::Daylight);

assert_writeable_eq!(
    fmt.format(&zone),
    "Chicago Time"
);

A time zone ID is required to format with this style. For example, a raw UtcOffset cannot be used here.

use icu::datetime::input::{DateTime, Iso};
use icu::datetime::FixedCalendarDateTimeFormatter;
use icu::datetime::fieldsets::zone::Location;
use icu::datetime::input::UtcOffset;
use tinystr::tinystr;
use icu::locale::locale;
use writeable::assert_writeable_eq;

let utc_offset = UtcOffset::try_from_str("-06").unwrap();

let formatter = FixedCalendarDateTimeFormatter::try_new(
    locale!("en-US").into(),
    Location,
)
.unwrap();

// error[E0277]: the trait bound `UtcOffset: AllInputMarkers<Location>` is not satisfied
// note: required by a bound in `FixedCalendarDateTimeFormatter::<C, FSet>::format`
formatter.format(&utc_offset);

Trait Implementations

impl Clone for Location

fn clone(&self) -> Location

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DateTimeMarkers for Location

type D = ()

Associated types for date formatting.

type T = ()

Associated types for time formatting.

type Z = Location

Associated types for time zone formatting.

type GluePatternV1 = NeverMarker<GluePattern<'static>>

Marker for loading the date/time glue pattern.

impl DateTimeNamesMarker for Location

type YearNames = ()

type MonthNames = ()

type WeekdayNames = ()

type DayPeriodNames = ()

type ZoneEssentials = TimeZoneEssentialsV1

type ZoneLocations = LocationsV1

type ZoneLocationsRoot = LocationsRootV1

type ZoneExemplars = ()

type ZoneExemplarsRoot = ()

type ZoneGenericLong = ()

type ZoneGenericShort = ()

type ZoneStandardLong = ()

type ZoneSpecificLong = ()

type ZoneSpecificShort = ()

type MetazoneLookup = ()

impl Debug for Location

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

Formats the value using the given formatter.

impl GetField<CompositeFieldSet> for Location

fn get_field(&self) -> CompositeFieldSet

Returns the value of this trait’s field T.

impl PartialEq for Location

fn eq(&self, other: &Location) -> 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 ZoneMarkers for Location

type TimeZoneIdInput = TimeZone

Marker for resolving the time zone id input field.

type TimeZoneOffsetInput = Option<UtcOffset>

Marker for resolving the time zone offset input field.

type TimeZoneVariantInput = ()

Marker for resolving the time zone variant input field.

type TimeZoneLocalTimeInput = ()

Marker for resolving the time zone non-location display names, which depend on the datetime.

type EssentialsV1 = TimeZoneEssentialsV1

Marker for loading core time zone data.

type LocationsV1 = LocationsV1

Marker for loading location names for time zone formatting

type LocationsRootV1 = LocationsRootV1

Marker for loading location names for time zone formatting

type ExemplarCitiesV1 = NeverMarker<ExemplarCities<'static>>

Marker for loading exemplar city names for time zone formatting

type ExemplarCitiesRootV1 = NeverMarker<ExemplarCities<'static>>

Marker for loading exemplar city names for time zone formatting

type GenericLongV1 = NeverMarker<MetazoneGenericNames<'static>>

Marker for loading generic long time zone names.

type GenericShortV1 = NeverMarker<MetazoneGenericNames<'static>>

Marker for loading generic short time zone names.

type StandardLongV1 = NeverMarker<MetazoneGenericNames<'static>>

Marker for loading standard long time zone names.

type SpecificLongV1 = NeverMarker<MetazoneSpecificNames<'static>>

Marker for loading specific long time zone names.

type SpecificShortV1 = NeverMarker<MetazoneSpecificNames<'static>>

Marker for loading generic short time zone names.

type MetazonePeriodV1 = NeverMarker<MetazonePeriod<'static>>

Marker for loading metazone periods.

impl Copy for Location

impl Eq for Location

impl StructuralPartialEq for Location

impl UnstableSealed for Location