mirror of
				https://github.com/LadybirdBrowser/ladybird.git
				synced 2025-11-04 07:10:57 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			103 lines
		
	
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			103 lines
		
	
	
	
		
			4.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
 | 
						|
 * Copyright (c) 2022-2025, Tim Flynn <trflynn89@ladybird.org>
 | 
						|
 *
 | 
						|
 * SPDX-License-Identifier: BSD-2-Clause
 | 
						|
 */
 | 
						|
 | 
						|
#include <AK/Array.h>
 | 
						|
#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/NumberFormatConstructor.h>
 | 
						|
#include <LibJS/Runtime/Intl/PluralRules.h>
 | 
						|
#include <LibJS/Runtime/Intl/PluralRulesConstructor.h>
 | 
						|
 | 
						|
namespace JS::Intl {
 | 
						|
 | 
						|
GC_DEFINE_ALLOCATOR(PluralRulesConstructor);
 | 
						|
 | 
						|
// 17.1 The Intl.PluralRules Constructor, https://tc39.es/ecma402/#sec-intl-pluralrules-constructor
 | 
						|
PluralRulesConstructor::PluralRulesConstructor(Realm& realm)
 | 
						|
    : NativeFunction(realm.vm().names.PluralRules.as_string(), realm.intrinsics().function_prototype())
 | 
						|
{
 | 
						|
}
 | 
						|
 | 
						|
void PluralRulesConstructor::initialize(Realm& realm)
 | 
						|
{
 | 
						|
    Base::initialize(realm);
 | 
						|
 | 
						|
    auto& vm = this->vm();
 | 
						|
 | 
						|
    // 17.2.1 Intl.PluralRules.prototype, https://tc39.es/ecma402/#sec-intl.pluralrules.prototype
 | 
						|
    define_direct_property(vm.names.prototype, realm.intrinsics().intl_plural_rules_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);
 | 
						|
}
 | 
						|
 | 
						|
// 17.1.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
 | 
						|
ThrowCompletionOr<Value> PluralRulesConstructor::call()
 | 
						|
{
 | 
						|
    // 1. If NewTarget is undefined, throw a TypeError exception.
 | 
						|
    return vm().throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, "Intl.PluralRules");
 | 
						|
}
 | 
						|
 | 
						|
// 17.1.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
 | 
						|
ThrowCompletionOr<GC::Ref<Object>> PluralRulesConstructor::construct(FunctionObject& new_target)
 | 
						|
{
 | 
						|
    auto& vm = this->vm();
 | 
						|
 | 
						|
    auto locales_value = vm.argument(0);
 | 
						|
    auto options_value = vm.argument(1);
 | 
						|
 | 
						|
    // 2. Let pluralRules be ? OrdinaryCreateFromConstructor(NewTarget, "%Intl.PluralRules.prototype%", « [[InitializedPluralRules]], [[Locale]], [[Type]], [[MinimumIntegerDigits]], [[MinimumFractionDigits]], [[MaximumFractionDigits]], [[MinimumSignificantDigits]], [[MaximumSignificantDigits]], [[RoundingType]], [[RoundingIncrement]], [[RoundingMode]], [[ComputedRoundingPriority]], [[TrailingZeroDisplay]] »).
 | 
						|
    auto plural_rules = TRY(ordinary_create_from_constructor<PluralRules>(vm, new_target, &Intrinsics::intl_plural_rules_prototype));
 | 
						|
 | 
						|
    // 3. Let optionsResolution be ? ResolveOptions(%Intl.PluralRules%, %Intl.PluralRules%.[[LocaleData]], locales, options, « COERCE-OPTIONS »).
 | 
						|
    // 4. Set options to optionsResolution.[[Options]].
 | 
						|
    // 5. Let r be optionsResolution.[[ResolvedLocale]].
 | 
						|
    auto [options, result, _] = TRY(resolve_options(vm, plural_rules, locales_value, options_value, SpecialBehaviors::CoerceOptions));
 | 
						|
 | 
						|
    // 6. Set pluralRules.[[Locale]] to r.[[locale]].
 | 
						|
    plural_rules->set_locale(move(result.locale));
 | 
						|
 | 
						|
    // 7. Let t be ? GetOption(options, "type", string, « "cardinal", "ordinal" », "cardinal").
 | 
						|
    auto type = TRY(get_option(vm, *options, vm.names.type, OptionType::String, AK::Array { "cardinal"sv, "ordinal"sv }, "cardinal"sv));
 | 
						|
 | 
						|
    // 8. Set pluralRules.[[Type]] to t.
 | 
						|
    plural_rules->set_type(type.as_string().utf8_string_view());
 | 
						|
 | 
						|
    // 9. Perform ? SetNumberFormatDigitOptions(pluralRules, options, 0, 3, "standard").
 | 
						|
    TRY(set_number_format_digit_options(vm, plural_rules, *options, 0, 3, Unicode::Notation::Standard));
 | 
						|
 | 
						|
    // Non-standard, create an ICU number formatter for this Intl object.
 | 
						|
    auto formatter = Unicode::NumberFormat::create(
 | 
						|
        result.icu_locale,
 | 
						|
        {},
 | 
						|
        plural_rules->rounding_options());
 | 
						|
 | 
						|
    formatter->create_plural_rules(plural_rules->type());
 | 
						|
    plural_rules->set_formatter(move(formatter));
 | 
						|
 | 
						|
    // 10. Return pluralRules.
 | 
						|
    return plural_rules;
 | 
						|
}
 | 
						|
 | 
						|
// 17.2.2 Intl.PluralRules.supportedLocalesOf ( locales [ , options ] ), https://tc39.es/ecma402/#sec-intl.pluralrules.supportedlocalesof
 | 
						|
JS_DEFINE_NATIVE_FUNCTION(PluralRulesConstructor::supported_locales_of)
 | 
						|
{
 | 
						|
    auto locales = vm.argument(0);
 | 
						|
    auto options = vm.argument(1);
 | 
						|
 | 
						|
    // 1. Let availableLocales be %PluralRules%.[[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));
 | 
						|
}
 | 
						|
 | 
						|
}
 |