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/*
* Copyright (c) 2021, Tim Flynn <trflynn89@pm.me>
*
* 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/DisplayNames.h>
#include <LibJS/Runtime/Intl/DisplayNamesConstructor.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
#include <LibUnicode/Locale.h>
namespace JS::Intl {
// 12.2 The Intl.DisplayNames Constructor, https://tc39.es/ecma402/#sec-intl-displaynames-constructor
DisplayNamesConstructor::DisplayNamesConstructor(GlobalObject& global_object)
: NativeFunction(vm().names.DisplayNames.as_string(), *global_object.function_prototype())
{
}
void DisplayNamesConstructor::initialize(GlobalObject& global_object)
{
NativeFunction::initialize(global_object);
auto& vm = this->vm();
// 12.3.1 Intl.DisplayNames.prototype, https://tc39.es/ecma402/#sec-Intl.DisplayNames.prototype
define_direct_property(vm.names.prototype, global_object.intl_display_names_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(2), Attribute::Configurable);
}
// 12.2.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
Value DisplayNamesConstructor::call()
{
// 1. If NewTarget is undefined, throw a TypeError exception.
vm().throw_exception<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, "Intl.DisplayNames");
return {};
}
// 12.2.1 Intl.DisplayNames ( locales, options ), https://tc39.es/ecma402/#sec-Intl.DisplayNames
Value DisplayNamesConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
auto locale_value = vm.argument(0);
auto options_value = vm.argument(1);
// 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNames.prototype%", « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »).
auto* display_names = TRY_OR_DISCARD(ordinary_create_from_constructor<DisplayNames>(global_object, new_target, &GlobalObject::intl_display_names_prototype));
// 3. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY_OR_DISCARD(canonicalize_locale_list(global_object, locale_value));
// 4. If options is undefined, throw a TypeError exception.
if (options_value.is_undefined()) {
vm.throw_exception<TypeError>(global_object, ErrorType::IsUndefined, "options"sv);
return {};
}
// 5. Set options to ? GetOptionsObject(options).
auto* options = TRY_OR_DISCARD(Temporal::get_options_object(global_object, options_value));
// 6. Let opt be a new Record.
LocaleOptions opt {};
// 7. Let localeData be %DisplayNames%.[[LocaleData]].
// 8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
auto matcher = TRY_OR_DISCARD(get_option(global_object, *options, vm.names.localeMatcher, Value::Type::String, { "lookup"sv, "best fit"sv }, "best fit"sv));
// 9. Set opt.[[localeMatcher]] to matcher.
opt.locale_matcher = matcher;
// 10. Let r be ResolveLocale(%DisplayNames%.[[AvailableLocales]], requestedLocales, opt, %DisplayNames%.[[RelevantExtensionKeys]]).
auto result = resolve_locale(requested_locales, opt, {});
// 11. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long").
auto style = TRY_OR_DISCARD(get_option(global_object, *options, vm.names.style, Value::Type::String, { "narrow"sv, "short"sv, "long"sv }, "long"sv));
// 12. Set displayNames.[[Style]] to style.
display_names->set_style(style.as_string().string());
// 13. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined).
auto type = TRY_OR_DISCARD(get_option(global_object, *options, vm.names.type, Value::Type::String, { "language"sv, "region"sv, "script"sv, "currency"sv }, Empty {}));
// 14. If type is undefined, throw a TypeError exception.
if (type.is_undefined()) {
vm.throw_exception<TypeError>(global_object, ErrorType::IsUndefined, "options.type"sv);
return {};
}
// 15. Set displayNames.[[Type]] to type.
display_names->set_type(type.as_string().string());
// 16. Let fallback be ? GetOption(options, "fallback", "string", « "code", "none" », "code").
auto fallback = TRY_OR_DISCARD(get_option(global_object, *options, vm.names.fallback, Value::Type::String, { "code"sv, "none"sv }, "code"sv));
// 17. Set displayNames.[[Fallback]] to fallback.
display_names->set_fallback(fallback.as_string().string());
// 18. Set displayNames.[[Locale]] to r.[[locale]].
display_names->set_locale(move(result.locale));
// Note: The remaining steps are skipped in favor of deferring to LibUnicode. We could copy
// the data from LibUnicode to the DisplayNames object, but for now we do not do that.
// 28. Return displayNames.
return display_names;
}
// 12.3.2 Intl.DisplayNames.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-Intl.DisplayNames.supportedLocalesOf
JS_DEFINE_OLD_NATIVE_FUNCTION(DisplayNamesConstructor::supported_locales_of)
{
auto locales = vm.argument(0);
auto options = vm.argument(1);
// 1. Let availableLocales be %DisplayNames%.[[AvailableLocales]].
// No-op, availability of each requested locale is checked via Unicode::is_locale_available()
// 2. Let requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY_OR_DISCARD(canonicalize_locale_list(global_object, locales));
// 3. Return ? SupportedLocales(availableLocales, requestedLocales, options).
return TRY_OR_DISCARD(supported_locales(global_object, requested_locales, options));
}
}
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