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131 lines
5.9 KiB
C++
131 lines
5.9 KiB
C++
/*
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* Copyright (c) 2021-2025, Tim Flynn <trflynn89@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/AbstractOperations.h>
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#include <LibJS/Runtime/Intl/DisplayNames.h>
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#include <LibJS/Runtime/Intl/DisplayNamesConstructor.h>
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#include <LibUnicode/Locale.h>
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namespace JS::Intl {
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GC_DEFINE_ALLOCATOR(DisplayNamesConstructor);
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// 12.1 The Intl.DisplayNames Constructor, https://tc39.es/ecma402/#sec-intl-displaynames-constructor
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DisplayNamesConstructor::DisplayNamesConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.DisplayNames.as_string(), realm.intrinsics().function_prototype())
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{
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}
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void DisplayNamesConstructor::initialize(Realm& realm)
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{
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Base::initialize(realm);
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auto& vm = this->vm();
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// 12.2.1 Intl.DisplayNames.prototype, https://tc39.es/ecma402/#sec-Intl.DisplayNames.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().intl_display_names_prototype(), 0);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(realm, vm.names.supportedLocalesOf, supported_locales_of, 1, attr);
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define_direct_property(vm.names.length, Value(2), Attribute::Configurable);
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}
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// 12.1.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
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ThrowCompletionOr<Value> DisplayNamesConstructor::call()
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{
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// 1. If NewTarget is undefined, throw a TypeError exception.
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return vm().throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Intl.DisplayNames");
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}
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// 12.1.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
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ThrowCompletionOr<GC::Ref<Object>> DisplayNamesConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto locales_value = vm.argument(0);
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auto options_value = vm.argument(1);
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// 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%Intl.DisplayNames.prototype%", « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[LanguageDisplay]], [[Fields]] »).
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auto display_names = TRY(ordinary_create_from_constructor<DisplayNames>(vm, new_target, &Intrinsics::intl_display_names_prototype));
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// 3. Let optionsResolution be ? ResolveOptions(%Intl.DisplayNames%, %Intl.DisplayNames%.[[LocaleData]], locales, options, « REQUIRE-OPTIONS »).
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// 4. Set options to optionsResolution.[[Options]].
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// 5. Let r be optionsResolution.[[ResolvedLocale]].
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auto [options, result, _] = TRY(resolve_options(vm, display_names, locales_value, options_value, SpecialBehaviors::RequireOptions));
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// 6. Let style be ? GetOption(options, "style", string, « "narrow", "short", "long" », "long").
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auto style = TRY(get_option(vm, *options, vm.names.style, OptionType::String, { "narrow"sv, "short"sv, "long"sv }, "long"sv));
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// 7. Set displayNames.[[Style]] to style.
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display_names->set_style(style.as_string().utf8_string_view());
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// 8. Let type be ? GetOption(options, "type", string, « "language", "region", "script", "currency", "calendar", "dateTimeField" », undefined).
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auto type = TRY(get_option(vm, *options, vm.names.type, OptionType::String, { "language"sv, "region"sv, "script"sv, "currency"sv, "calendar"sv, "dateTimeField"sv }, Empty {}));
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// 9. If type is undefined, throw a TypeError exception.
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if (type.is_undefined())
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return vm.throw_completion<TypeError>(ErrorType::IsUndefined, "options.type"sv);
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// 10. Set displayNames.[[Type]] to type.
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display_names->set_type(type.as_string().utf8_string_view());
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// 11. Let fallback be ? GetOption(options, "fallback", string, « "code", "none" », "code").
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auto fallback = TRY(get_option(vm, *options, vm.names.fallback, OptionType::String, { "code"sv, "none"sv }, "code"sv));
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// 12. Set displayNames.[[Fallback]] to fallback.
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display_names->set_fallback(fallback.as_string().utf8_string_view());
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// 13. Set displayNames.[[Locale]] to r.[[Locale]].
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display_names->set_locale(move(result.locale));
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// 14. Let resolvedLocaleData be r.[[LocaleData]].
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// 15. Let types be resolvedLocaleData.[[types]].
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// 16. Assert: types is a Record (see 12.2.3).
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// 17. Let languageDisplay be ? GetOption(options, "languageDisplay", string, « "dialect", "standard" », "dialect").
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auto language_display = TRY(get_option(vm, *options, vm.names.languageDisplay, OptionType::String, { "dialect"sv, "standard"sv }, "dialect"sv));
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// 18. Let typeFields be types.[[<type>]].
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// 19. Assert: typeFields is a Record (see 12.2.3).
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// 20. If type is "language", then
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if (display_names->type() == DisplayNames::Type::Language) {
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// a. Set displayNames.[[LanguageDisplay]] to languageDisplay.
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display_names->set_language_display(language_display.as_string().utf8_string_view());
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// b. Set typeFields to typeFields.[[<languageDisplay>]].
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// c. Assert: typeFields is a Record (see 12.2.3).
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}
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// 21. Let styleFields be typeFields.[[<style>]].
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// 22. Assert: styleFields is a Record (see 12.2.3).
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// 23. Set displayNames.[[Fields]] to styleFields.
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// 24. Return displayNames.
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return display_names;
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}
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// 12.2.2 Intl.DisplayNames.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-Intl.DisplayNames.supportedLocalesOf
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JS_DEFINE_NATIVE_FUNCTION(DisplayNamesConstructor::supported_locales_of)
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{
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auto locales = vm.argument(0);
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auto options = vm.argument(1);
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// 1. Let availableLocales be %DisplayNames%.[[AvailableLocales]].
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// No-op, availability of each requested locale is checked via Unicode::is_locale_available()
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// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
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auto requested_locales = TRY(canonicalize_locale_list(vm, locales));
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// 3. Return ? FilterLocales(availableLocales, requestedLocales, options).
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return TRY(filter_locales(vm, requested_locales, options));
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}
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}
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