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LibJS: Implement Intl.NumberFormat.supportedLocalesOf

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Timothy Flynn 2021-09-10 11:12:05 -04:00 • committed by Linus Groh
parent e42ba7f748
commit 071e193d92
3 changed files with 67 additions and 0 deletions
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22
Userland/Libraries/LibJS/Runtime/Intl/NumberFormatConstructor.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/NumberFormat.h>
@ -390,6 +391,10 @@ void NumberFormatConstructor::initialize(GlobalObject& global_object)
// 15.3.1 Intl.NumberFormat.prototype, https://tc39.es/ecma402/#sec-intl.numberformat.prototype
define_direct_property(vm.names.prototype, global_object.intl_number_format_prototype(), 0);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
}
@ -427,4 +432,21 @@ Value NumberFormatConstructor::construct(FunctionObject& new_target)
return number_format;
}
// 15.3.2 Intl.NumberFormat.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.numberformat.supportedlocalesof
JS_DEFINE_NATIVE_FUNCTION(NumberFormatConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %NumberFormat%.[[AvailableLocales]].
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = canonicalize_locale_list(global_object, locales);
if (vm.exception())
return {};
// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
return supported_locales(global_object, requested_locales, options);
}
}