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LibJS: Implement Intl.PluralRules.prototype.resolvedOptions

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Timothy Flynn 2022-01-28 13:42:20 -05:00 • committed by Linus Groh
parent 8b3f49ff84
commit 74939eb943
4 changed files with 134 additions and 0 deletions
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43
Userland/Libraries/LibJS/Runtime/Intl/PluralRulesPrototype.cpp
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@ -4,8 +4,10 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/Array.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/PluralRulesPrototype.h>
#include <LibJS/Runtime/MarkedValueList.h>
namespace JS::Intl {
@ -23,6 +25,47 @@ void PluralRulesPrototype::initialize(GlobalObject& global_object)
// 16.4.2 Intl.PluralRules.prototype [ @@toStringTag ], https://tc39.es/ecma402/#sec-intl.pluralrules.prototype-tostringtag
define_direct_property(*vm.well_known_symbol_to_string_tag(), js_string(vm, "Intl.PluralRules"sv), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.resolvedOptions, resolved_options, 0, attr);
}
// 16.4.4 Intl.PluralRules.prototype.resolvedOptions ( ), https://tc39.es/ecma402/#sec-intl.pluralrules.prototype.resolvedoptions
JS_DEFINE_NATIVE_FUNCTION(PluralRulesPrototype::resolved_options)
{
// 1. Let pr be the this value.
// 2. Perform ? RequireInternalSlot(pr, [[InitializedPluralRules]]).
auto* plural_rules = TRY(typed_this_object(global_object));
// 3. Let options be ! OrdinaryObjectCreate(%Object.prototype%).
auto* options = Object::create(global_object, global_object.object_prototype());
// 4. For each row of Table 14, except the header row, in table order, do
// a. Let p be the Property value of the current row.
// b. Let v be the value of pr's internal slot whose name is the Internal Slot value of the current row.
// c. If v is not undefined, then
// i. Perform ! CreateDataPropertyOrThrow(options, p, v).
MUST(options->create_data_property_or_throw(vm.names.locale, js_string(vm, plural_rules->locale())));
MUST(options->create_data_property_or_throw(vm.names.type, js_string(vm, plural_rules->type_string())));
MUST(options->create_data_property_or_throw(vm.names.minimumIntegerDigits, Value(plural_rules->min_integer_digits())));
if (plural_rules->has_min_fraction_digits())
MUST(options->create_data_property_or_throw(vm.names.minimumFractionDigits, Value(plural_rules->min_fraction_digits())));
if (plural_rules->has_max_fraction_digits())
MUST(options->create_data_property_or_throw(vm.names.maximumFractionDigits, Value(plural_rules->max_fraction_digits())));
if (plural_rules->has_min_significant_digits())
MUST(options->create_data_property_or_throw(vm.names.minimumSignificantDigits, Value(plural_rules->min_significant_digits())));
if (plural_rules->has_max_significant_digits())
MUST(options->create_data_property_or_throw(vm.names.maximumSignificantDigits, Value(plural_rules->max_significant_digits())));
// 5. Let pluralCategories be a List of Strings containing all possible results of PluralRuleSelect for the selected locale pr.[[Locale]].
// FIXME: Implement this when the data is available in LibUnicode.
MarkedValueList plural_categories { vm.heap() };
// 6. Perform ! CreateDataProperty(options, "pluralCategories", CreateArrayFromList(pluralCategories)).
MUST(options->create_data_property_or_throw(vm.names.pluralCategories, Array::create_from(global_object, plural_categories)));
// 7. Return options.
return options;
}
}

3
Userland/Libraries/LibJS/Runtime/Intl/PluralRulesPrototype.h
View file

@ -18,6 +18,9 @@ public:
explicit PluralRulesPrototype(GlobalObject&);
virtual void initialize(GlobalObject&) override;
virtual ~PluralRulesPrototype() override = default;
private:
JS_DECLARE_NATIVE_FUNCTION(resolved_options);
};
}