Struct icu_timezone::iana_ids::IanaBcp47RoundTripMapper

pub struct IanaBcp47RoundTripMapper {
    data1: DataPayload<IanaToBcp47MapV1Marker>,
    data2: DataPayload<Bcp47ToIanaMapV1Marker>,
}

👎Deprecated since 1.5.0: use TimeZoneIdMapper instead

A mapper that supports mapping IANA identifiers to BCP-47 identifiers and also the other way around.

This is mainly useful if the IANA identifier needs to be recovered or canonicalized.

Examples

Demonstration of canonicalization of the time zone identifier:

use icu::timezone::IanaBcp47RoundTripMapper;

let mapper = IanaBcp47RoundTripMapper::new();
let mapper_borrowed = mapper.as_borrowed();

// Look up the time zone ID for "Asia/Calcutta"
let bcp47_id = mapper_borrowed.iana_to_bcp47("Asia/Calcutta");
assert_eq!(bcp47_id, Some("inccu".parse().unwrap()));

// Get it back as the canonical form "Asia/Kolkata"
let iana_id = mapper_borrowed.bcp47_to_iana(bcp47_id.unwrap());
assert_eq!(iana_id, Some("Asia/Kolkata"))

Fields

data1: DataPayload<IanaToBcp47MapV1Marker>

👎Deprecated since 1.5.0: use TimeZoneIdMapper instead

data2: DataPayload<Bcp47ToIanaMapV1Marker>

👎Deprecated since 1.5.0: use TimeZoneIdMapper instead

Implementations

impl IanaBcp47RoundTripMapper

pub const fn new() -> Self

Creates a new IanaBcp47RoundTripMapper using compiled data.

See IanaBcp47RoundTripMapper for an example.

✨ Enabled with the compiled_data Cargo feature.

📚 Help choosing a constructor

pub fn try_new_with_any_provider( provider: &(impl AnyProvider + ?Sized), ) -> Result<Self, TimeZoneError>

A version of [Self :: new] that uses custom data provided by an AnyProvider.

📚 Help choosing a constructor

pub fn try_new_unstable<P>(provider: &P) -> Result<Self, TimeZoneError>

where P: DataProvider<IanaToBcp47MapV1Marker> + DataProvider<Bcp47ToIanaMapV1Marker> + ?Sized,

A version of Self::new that uses custom data provided by a DataProvider.

📚 Help choosing a constructor

⚠️ The bounds on provider may change over time, including in SemVer minor releases.

pub fn as_borrowed(&self) -> IanaBcp47RoundTripMapperBorrowed<'_>

Returns a borrowed version of the mapper that can be queried.

This avoids a small potential cost of reading the data pointer.

Trait Implementations

impl Debug for IanaBcp47RoundTripMapper

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

Formats the value using the given formatter.

impl Default for IanaBcp47RoundTripMapper

fn default() -> Self

Returns the “default value” for a type.