Enum icu_datetime::fieldset::dynamic::ZoneFieldSet

#[non_exhaustive]
pub enum ZoneFieldSet {
    Z(Z),
    O(O),
    V(V),
    L(L),
}

An enumeration over all possible zone field sets.

📏 Note: This enum can be used as the field set parameter of DateTimeFormatter, but doing so may link more formatting data compared to the individual field set structs.

Note: fieldset::Zs and fieldset::Vs are not included in this enum because they are data size optimizations only.

Time Zone Data Size

Time zone names contribute a lot of data size. For resource-constrained environments, the following formats require the least amount of data:

• fieldset::Zs
• fieldset::O

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.

Z(Z)

The specific non-location format, as in “Pacific Daylight Time”.

O(O)

The offset format, as in “GMT−8”.

V(V)

The generic non-location format, as in “Pacific Time”.

L(L)

The location format, as in “Los Angeles time”.

Trait Implementations

impl Clone for ZoneFieldSet

fn clone(&self) -> ZoneFieldSet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl DateTimeMarkers for ZoneFieldSet

type D = NeoNeverMarker

Associated types for date formatting.

type T = NeoNeverMarker

Associated types for time formatting.

type Z = ZoneFieldSet

Associated types for time zone formatting.

type GluePatternV1Marker = NeverMarker<GluePatternV1<'static>>

Marker for loading the date/time glue pattern.

impl Debug for ZoneFieldSet

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

Formats the value using the given formatter.

impl GetField<CompositeFieldSet> for ZoneFieldSet

fn get_field(&self) -> CompositeFieldSet

Returns the value of this trait’s field T.

impl PartialEq for ZoneFieldSet

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

type TimeZoneIdInput = TimeZoneBcp47Id

Marker for resolving the time zone id input field.

type TimeZoneOffsetInput = Option<UtcOffset>

Marker for resolving the time zone offset input field.

type TimeZoneVariantInput = ZoneVariant

Marker for resolving the time zone variant input field.

type TimeZoneLocalTimeInput = (Date<Iso>, Time)

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

type EssentialsV1Marker = TimeZoneEssentialsV1Marker

Marker for loading core time zone data.

type LocationsV1Marker = LocationsV1Marker

Marker for loading location names for time zone formatting

type GenericLongV1Marker = MetazoneGenericNamesLongV1Marker

Marker for loading generic long time zone names.

type GenericShortV1Marker = MetazoneGenericNamesShortV1Marker

Marker for loading generic short time zone names.

type SpecificLongV1Marker = MetazoneSpecificNamesLongV1Marker

Marker for loading specific long time zone names.

type SpecificShortV1Marker = MetazoneSpecificNamesShortV1Marker

Marker for loading generic short time zone names.

type MetazonePeriodV1Marker = MetazonePeriodV1Marker

Marker for loading metazone periods.

impl Copy for ZoneFieldSet

impl Eq for ZoneFieldSet

impl StructuralPartialEq for ZoneFieldSet

impl UnstableSealed for ZoneFieldSet