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LibJS: Implement Intl.Collator.supportedLocalesOf

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Timothy Flynn 2021-09-08 13:32:19 -04:00 • committed by Linus Groh
parent 5a1eefcc1d
commit 17306078b5
3 changed files with 64 additions and 0 deletions
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19
Userland/Libraries/LibJS/Runtime/Intl/CollatorConstructor.cpp
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@ -5,6 +5,7 @@
*/
#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/Collator.h>
@ -145,6 +146,9 @@ void CollatorConstructor::initialize(GlobalObject& global_object)
// 10.2.1 Intl.Collator.prototype, https://tc39.es/ecma402/#sec-intl.collator.prototype
define_direct_property(vm.names.prototype, global_object.intl_collator_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);
}
// 10.1.2 Intl.Collator ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.collator
@ -176,4 +180,19 @@ ThrowCompletionOr<Object*> CollatorConstructor::construct(FunctionObject& new_ta
return TRY(initialize_collator(global_object, *collator, locales, options));
}
// 10.2.2 Intl.Collator.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.collator.supportedlocalesof
JS_DEFINE_NATIVE_FUNCTION(CollatorConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %Collator%.[[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));
}
}