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LibJS: Implement Intl.PluralRules.supportedLocalesOf

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Timothy Flynn 2022-01-28 13:31:04 -05:00 • committed by Linus Groh
parent 624fad3821
commit 8b3f49ff84
3 changed files with 65 additions and 0 deletions
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20
Userland/Libraries/LibJS/Runtime/Intl/PluralRulesConstructor.cpp
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@ -5,7 +5,9 @@
*/
#include <LibJS/Runtime/AbstractOperations.h>
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/AbstractOperations.h>
#include <LibJS/Runtime/Intl/PluralRules.h>
#include <LibJS/Runtime/Intl/PluralRulesConstructor.h>
@ -26,6 +28,9 @@ void PluralRulesConstructor::initialize(GlobalObject& global_object)
// 16.3.1 Intl.PluralRules.prototype, https://tc39.es/ecma402/#sec-intl.pluralrules.prototype
define_direct_property(vm.names.prototype, global_object.intl_plural_rules_prototype(), 0);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
}
// 16.2.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
@ -51,4 +56,19 @@ ThrowCompletionOr<Object*> PluralRulesConstructor::construct(FunctionObject& new
return TRY(initialize_plural_rules(global_object, *plural_rules, locales, options));
}
// 16.3.2 Intl.PluralRules.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.pluralrules.supportedlocalesof
JS_DEFINE_NATIVE_FUNCTION(PluralRulesConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %PluralRules%.[[AvailableLocales]].
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(global_object, locales));
// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
return TRY(supported_locales(global_object, requested_locales, options));
}
}