ladybird/Userland/Libraries/LibJS/Runtime/Intl/PluralRulesConstructor.cpp
Timothy Flynn ebdb92eef6 LibUnicode+Everywhere: Merge LibLocale back into LibUnicode
LibLocale was split off from LibUnicode a couple years ago to reduce the
number of applications on SerenityOS that depend on CLDR data. Now that
we use ICU, both LibUnicode and LibLocale are actually linking in this
data. And since vcpkg gives us static libraries, both libraries are over
30MB in size.

This patch reverts the separation and merges LibLocale into LibUnicode
again. We now have just one library that includes the ICU data.

Further, this will let LibUnicode share the locale cache that previously
would only exist in LibLocale.
2024-06-23 19:52:45 +02:00

118 lines
5.1 KiB
C++

/*
* Copyright (c) 2022-2024, Tim Flynn <trflynn89@serenityos.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 {
JS_DEFINE_ALLOCATOR(PluralRulesConstructor);
// 16.1 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();
// 16.2.1 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);
}
// 16.1.1 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");
}
// 16.1.1 Intl.PluralRules ( [ locales [ , options ] ] ), https://tc39.es/ecma402/#sec-intl.pluralrules
ThrowCompletionOr<NonnullGCPtr<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 requestedLocales be ? CanonicalizeLocaleList(locales).
auto requested_locales = TRY(canonicalize_locale_list(vm, locales_value));
// 4. Set options to ? CoerceOptionsToObject(options).
auto* options = TRY(coerce_options_to_object(vm, options_value));
// 5. Let opt be a new Record.
LocaleOptions opt {};
// 6. Let matcher be ? GetOption(options, "localeMatcher", string, « "lookup", "best fit" », "best fit").
auto matcher = TRY(get_option(vm, *options, vm.names.localeMatcher, OptionType::String, AK::Array { "lookup"sv, "best fit"sv }, "best fit"sv));
// 7. Set opt.[[localeMatcher]] to matcher.
opt.locale_matcher = matcher;
// 8. Let localeData be %Intl.PluralRules%.[[LocaleData]].
// 9. Let r be ResolveLocale(%Intl.PluralRules%.[[AvailableLocales]], requestedLocales, opt, %Intl.PluralRules%.[[RelevantExtensionKeys]], localeData).
auto result = resolve_locale(requested_locales, opt, {});
// 10. Set pluralRules.[[Locale]] to r.[[locale]].
plural_rules->set_locale(move(result.locale));
// 11. 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));
// 12. Set pluralRules.[[Type]] to t.
plural_rules->set_type(type.as_string().utf8_string_view());
// 13. 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(
plural_rules->locale(),
{},
{},
plural_rules->rounding_options());
formatter->create_plural_rules(plural_rules->type());
plural_rules->set_formatter(move(formatter));
// 14. Return pluralRules.
return plural_rules;
}
// 16.2.2 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));
}
}