ladybird/Libraries/LibJS/Runtime/Intl/RelativeTimeFormatConstructor.cpp
Timothy Flynn 2729c88154 LibJS: Migrate remaining Intl objects to use ResolveOptions
This is an editorial change in the ECMA-402 spec. See:
75e67db
2025-04-08 06:50:40 -04:00

114 lines
5.3 KiB
C++

/*
* Copyright (c) 2022-2025, Tim Flynn <trflynn89@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#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/RelativeTimeFormat.h>
#include <LibJS/Runtime/Intl/RelativeTimeFormatConstructor.h>
#include <LibUnicode/Locale.h>
namespace JS::Intl {
GC_DEFINE_ALLOCATOR(RelativeTimeFormatConstructor);
// 18.1 The Intl.RelativeTimeFormat Constructor, https://tc39.es/ecma402/#sec-intl-relativetimeformat-constructor
RelativeTimeFormatConstructor::RelativeTimeFormatConstructor(Realm& realm)
: NativeFunction(realm.vm().names.RelativeTimeFormat.as_string(), realm.intrinsics().function_prototype())
{
}
void RelativeTimeFormatConstructor::initialize(Realm& realm)
{
Base::initialize(realm);
auto& vm = this->vm();
// 18.2.1 Intl.RelativeTimeFormat.prototype, https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().intl_relative_time_format_prototype(), 0);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(realm, vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
}
// 18.1.1 Intl.RelativeTimeFormat ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat
ThrowCompletionOr<Value> RelativeTimeFormatConstructor::call()
{
// 1. If NewTarget is undefined, throw a TypeError exception.
return vm().throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Intl.RelativeTimeFormat");
}
// 18.1.1 Intl.RelativeTimeFormat ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat
ThrowCompletionOr<GC::Ref<Object>> RelativeTimeFormatConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto locales_value = vm.argument(0);
auto options_value = vm.argument(1);
// 2. Let relativeTimeFormat be ? OrdinaryCreateFromConstructor(NewTarget, "%Intl.RelativeTimeFormat.prototype%", « [[InitializedRelativeTimeFormat]], [[Locale]], [[LocaleData]], [[Style]], [[Numeric]], [[NumberFormat]], [[NumberingSystem]], [[PluralRules]] »).
auto relative_time_format = TRY(ordinary_create_from_constructor<RelativeTimeFormat>(vm, new_target, &Intrinsics::intl_relative_time_format_prototype));
// 3. Let optionsResolution be ? ResolveOptions(%Intl.RelativeTimeFormat%, %Intl.RelativeTimeFormat%.[[LocaleData]], locales, options, « COERCE-OPTIONS »).
// 4. Set options to optionsResolution.[[Options]].
// 5. Let r be optionsResolution.[[ResolvedLocale]].
auto [options, result, _] = TRY(resolve_options(vm, relative_time_format, locales_value, options_value, SpecialBehaviors::CoerceOptions));
// 6. Let locale be r.[[Locale]].
auto locale = move(result.locale);
// 7. Set relativeTimeFormat.[[Locale]] to locale.
relative_time_format->set_locale(locale);
// 8. Set relativeTimeFormat.[[LocaleData]] to r.[[LocaleData]].
// 9. Set relativeTimeFormat.[[NumberingSystem]] to r.[[nu]].
if (auto* resolved_numbering_system = result.nu.get_pointer<String>())
relative_time_format->set_numbering_system(move(*resolved_numbering_system));
// 10. Let style be ? GetOption(options, "style", STRING, « "long", "short", "narrow" », "long").
auto style = TRY(get_option(vm, *options, vm.names.style, OptionType::String, { "long"sv, "short"sv, "narrow"sv }, "long"sv));
// 11. Set relativeTimeFormat.[[Style]] to style.
relative_time_format->set_style(style.as_string().utf8_string_view());
// 12. Let numeric be ? GetOption(options, "numeric", STRING, « "always", "auto" », "always").
auto numeric = TRY(get_option(vm, *options, vm.names.numeric, OptionType::String, { "always"sv, "auto"sv }, "always"sv));
// 13. Set relativeTimeFormat.[[Numeric]] to numeric.
relative_time_format->set_numeric(numeric.as_string().utf8_string_view());
// 14. Let nfOptions be OrdinaryObjectCreate(null).
// 15. Perform ! CreateDataPropertyOrThrow(nfOptions, "numberingSystem", relativeTimeFormat.[[NumberingSystem]]).
// 16. Let relativeTimeFormat.[[NumberFormat]] be ! Construct(%Intl.NumberFormat%, « locale, nfOptions »).
// 17. Let relativeTimeFormat.[[PluralRules]] be ! Construct(%Intl.PluralRules%, « locale »).
auto formatter = Unicode::RelativeTimeFormat::create(
result.icu_locale,
relative_time_format->style());
relative_time_format->set_formatter(move(formatter));
// 18. Return relativeTimeFormat.
return relative_time_format;
}
// 18.2.2 Intl.RelativeTimeFormat.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.supportedLocalesOf
JS_DEFINE_NATIVE_FUNCTION(RelativeTimeFormatConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %RelativeTimeFormat%.[[AvailableLocales]].
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
// 3. Return ? FilterLocales(availableLocales, requestedLocales, options).
return TRY(filter_locales(vm, requested_locales, options));
}
}