icu_provider_source 2.2.0

A data provider based on CLDR and ICU data.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

// This file is part of ICU4X. For terms of use, please see the file
// called LICENSE at the top level of the ICU4X source tree
// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).

use std::collections::HashSet;

use icu::experimental::measure::provider::UnitIdsV1;
use icu_provider::prelude::*;
use icu_provider::DataError;
use icu_provider::DataMarkerAttributes;
use icu_provider::DataProvider;
use icu_provider::DataRequest;
use icu_provider::DataResponse;

use crate::cldr_serde;
use crate::SourceDataProvider;

impl DataProvider<UnitIdsV1> for SourceDataProvider {
    fn load(&self, req: DataRequest) -> Result<DataResponse<UnitIdsV1>, DataError> {
        self.check_req::<UnitIdsV1>(req)?;
        let units_data: &cldr_serde::units::info::Resource = self
            .cldr()?
            .core()
            .read_and_parse("supplemental/units.json")?;

        let unit = req.id.marker_attributes.as_str();

        Ok(DataResponse {
            payload: DataPayload::from_owned(units_data.unit_id(unit)?),
            metadata: Default::default(),
        })
    }
}

impl crate::IterableDataProviderCached<UnitIdsV1> for SourceDataProvider {
    fn iter_ids_cached(&self) -> Result<HashSet<DataIdentifierCow<'static>>, DataError> {
        let units_data: &cldr_serde::units::info::Resource = self
            .cldr()?
            .core()
            .read_and_parse("supplemental/units.json")?;

        let ids_set = units_data
            .unit_ids_map()?
            .keys()
            .map(|unit_name| {
                DataIdentifierCow::from_marker_attributes_owned(
                    DataMarkerAttributes::try_from_string(unit_name.clone()).unwrap(),
                )
            })
            .collect();

        Ok(ids_set)
    }
}