1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 20:27:45 +00:00

LibJS: Implement Intl.supportedValuesOf

This is a stage 3 ECMA-402 proposal:
https://tc39.es/proposal-intl-enumeration/
This commit is contained in:
Timothy Flynn 2022-01-30 17:36:23 -05:00 committed by Linus Groh
parent a120e85596
commit fb08a5a896
5 changed files with 154 additions and 0 deletions

View file

@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/QuickSort.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/AbstractOperations.h>
@ -17,6 +18,11 @@
#include <LibJS/Runtime/Intl/PluralRulesConstructor.h>
#include <LibJS/Runtime/Intl/RelativeTimeFormatConstructor.h>
#include <LibJS/Runtime/Intl/SegmenterConstructor.h>
#include <LibJS/Runtime/Temporal/TimeZone.h>
#include <LibUnicode/CurrencyCode.h>
#include <LibUnicode/DateTimeFormat.h>
#include <LibUnicode/Locale.h>
#include <LibUnicode/NumberFormat.h>
namespace JS::Intl {
@ -47,6 +53,7 @@ void Intl::initialize(GlobalObject& global_object)
define_direct_property(vm.names.Segmenter, global_object.intl_segmenter_constructor(), attr);
define_native_function(vm.names.getCanonicalLocales, get_canonical_locales, 1, attr);
define_native_function(vm.names.supportedValuesOf, supported_values_of, 1, attr);
}
// 8.3.1 Intl.getCanonicalLocales ( locales ), https://tc39.es/ecma402/#sec-intl.getcanonicallocales
@ -66,4 +73,85 @@ JS_DEFINE_NATIVE_FUNCTION(Intl::get_canonical_locales)
return Array::create_from(global_object, marked_locale_list);
}
// 1.4.4 AvailableTimeZones (), https://tc39.es/proposal-intl-enumeration/#sec-availablecurrencies
static Vector<StringView> available_time_zones()
{
// 1. Let names be a List of all supported Zone and Link names in the IANA Time Zone Database.
auto names = TimeZone::all_time_zones();
// 2. Let result be a new empty List.
Vector<StringView> result;
// 3. For each element name of names, do
for (auto name : names) {
// a. Assert: ! IsValidTimeZoneName( name ) is true.
// b. Let canonical be ! CanonicalizeTimeZoneName( name ).
auto canonical = TimeZone::canonicalize_time_zone(name).value();
// c. If result does not contain an element equal to canonical, then
if (!result.contains_slow(canonical)) {
// i. Append canonical to the end of result.
result.append(canonical);
}
}
// 4. Sort result in order as if an Array of the same values had been sorted using %Array.prototype.sort% using undefined as comparefn.
quick_sort(result);
// 5. Return result.
return result;
}
// 2.2.2 Intl.supportedValuesOf ( key ), https://tc39.es/proposal-intl-enumeration/#sec-intl.supportedvaluesof
JS_DEFINE_NATIVE_FUNCTION(Intl::supported_values_of)
{
// 1. Let key be ? ToString(key).
auto key = TRY(vm.argument(0).to_string(global_object));
Span<StringView const> list;
// 2. If key is "calendar", then
if (key == "calendar"sv) {
// a. Let list be ! AvailableCalendars( ).
list = Unicode::get_available_calendars();
}
// 3. Else if key is "collation", then
else if (key == "collation"sv) {
// a. Let list be ! AvailableCollations( ).
// NOTE: We don't yet parse any collation data, but "default" is allowed.
static constexpr auto collations = AK::Array { "default"sv };
list = collations.span();
}
// 4. Else if key is "currency", then
else if (key == "currency"sv) {
// a. Let list be ! AvailableCurrencies( ).
list = Unicode::get_available_currencies();
}
// 5. Else if key is "numberingSystem", then
else if (key == "numberingSystem"sv) {
// a. Let list be ! AvailableNumberingSystems( ).
list = Unicode::get_available_number_systems();
}
// 6. Else if key is "timeZone", then
else if (key == "timeZone"sv) {
// a. Let list be ! AvailableTimeZones( ).
static auto time_zones = available_time_zones();
list = time_zones.span();
}
// 7. Else if key is "unit", then
else if (key == "unit"sv) {
// a. Let list be ! AvailableUnits( ).
static auto units = sanctioned_simple_unit_identifiers();
list = units.span();
}
// 8. Else,
else {
// a. Throw a RangeError exception.
return vm.throw_completion<RangeError>(global_object, ErrorType::IntlInvalidKey, key);
}
// 9. Return ! CreateArrayFromList( list ).
return Array::create_from<StringView>(global_object, list, [&](auto value) { return js_string(vm, value); });
}
}