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LibJS: Implement Intl.NumberFormat.prototype.resolvedOptions

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Timothy Flynn 2021-09-10 16:28:31 -04:00 • committed by Linus Groh
parent 071e193d92
commit 9b5696fee7
3 changed files with 369 additions and 0 deletions
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72
Userland/Libraries/LibJS/Runtime/Intl/NumberFormatPrototype.cpp
View file

@ -4,11 +4,29 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/TypeCasts.h>
#include <LibJS/Runtime/GlobalObject.h>
#include <LibJS/Runtime/Intl/NumberFormat.h>
#include <LibJS/Runtime/Intl/NumberFormatPrototype.h>
namespace JS::Intl {
static NumberFormat* typed_this(GlobalObject& global_object)
{
auto& vm = global_object.vm();
auto* this_object = vm.this_value(global_object).to_object(global_object);
if (!this_object)
return nullptr;
if (!is<NumberFormat>(this_object)) {
vm.throw_exception<TypeError>(global_object, ErrorType::NotA, "Intl.NumberFormat");
return nullptr;
}
return static_cast<NumberFormat*>(this_object);
}
// 15.4 Properties of the Intl.NumberFormat Prototype Object, https://tc39.es/ecma402/#sec-properties-of-intl-numberformat-prototype-object
NumberFormatPrototype::NumberFormatPrototype(GlobalObject& global_object)
: Object(*global_object.object_prototype())
@ -23,6 +41,60 @@ void NumberFormatPrototype::initialize(GlobalObject& global_object)
// 15.4.2 Intl.NumberFormat.prototype [ @@toStringTag ], https://tc39.es/ecma402/#sec-intl.numberformat.prototype-@@tostringtag
define_direct_property(*vm.well_known_symbol_to_string_tag(), js_string(vm, "Intl.NumberFormat"), Attribute::Configurable);
u8 attr = Attribute::Writable | Attribute::Configurable;
define_native_function(vm.names.resolvedOptions, resolved_options, 0, attr);
}
// 15.4.5 Intl.NumberFormat.prototype.resolvedOptions ( ), https://tc39.es/ecma402/#sec-intl.numberformat.prototype.resolvedoptions
JS_DEFINE_NATIVE_FUNCTION(NumberFormatPrototype::resolved_options)
{
// 1. Let nf be the this value.
// 2. If the implementation supports the normative optional constructor mode of 4.3 Note 1, then
// a. Set nf to ? UnwrapNumberFormat(nf).
// 3. Perform ? RequireInternalSlot(nf, [[InitializedNumberFormat]]).
auto* number_format = typed_this(global_object);
if (vm.exception())
return {};
// 4. Let options be ! OrdinaryObjectCreate(%Object.prototype%).
auto* options = Object::create(global_object, global_object.object_prototype());
// 5. For each row of Table 11, 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 nf'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).
options->create_data_property_or_throw(vm.names.locale, js_string(vm, number_format->locale()));
options->create_data_property_or_throw(vm.names.numberingSystem, js_string(vm, number_format->numbering_system()));
options->create_data_property_or_throw(vm.names.style, js_string(vm, number_format->style_string()));
if (number_format->has_currency())
options->create_data_property_or_throw(vm.names.currency, js_string(vm, number_format->currency()));
if (number_format->has_currency_display())
options->create_data_property_or_throw(vm.names.currencyDisplay, js_string(vm, number_format->currency_display_string()));
if (number_format->has_currency_sign())
options->create_data_property_or_throw(vm.names.currencySign, js_string(vm, number_format->currency_sign_string()));
if (number_format->has_unit())
options->create_data_property_or_throw(vm.names.unit, js_string(vm, number_format->unit()));
if (number_format->has_unit_display())
options->create_data_property_or_throw(vm.names.unitDisplay, js_string(vm, number_format->unit_display_string()));
options->create_data_property_or_throw(vm.names.minimumIntegerDigits, Value(number_format->min_integer_digits()));
if (number_format->has_min_fraction_digits())
options->create_data_property_or_throw(vm.names.minimumFractionDigits, Value(number_format->min_fraction_digits()));
if (number_format->has_max_fraction_digits())
options->create_data_property_or_throw(vm.names.maximumFractionDigits, Value(number_format->max_fraction_digits()));
if (number_format->has_min_significant_digits())
options->create_data_property_or_throw(vm.names.minimumSignificantDigits, Value(number_format->min_significant_digits()));
if (number_format->has_max_significant_digits())
options->create_data_property_or_throw(vm.names.maximumSignificantDigits, Value(number_format->max_significant_digits()));
options->create_data_property_or_throw(vm.names.useGrouping, Value(number_format->use_grouping()));
options->create_data_property_or_throw(vm.names.notation, js_string(vm, number_format->notation_string()));
if (number_format->has_compact_display())
options->create_data_property_or_throw(vm.names.compactDisplay, js_string(vm, number_format->compact_display_string()));
options->create_data_property_or_throw(vm.names.signDisplay, js_string(vm, number_format->sign_display_string()));
// 5. Return options.
return options;
}
}

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

@ -17,6 +17,9 @@ public:
explicit NumberFormatPrototype(GlobalObject&);
virtual void initialize(GlobalObject&) override;
virtual ~NumberFormatPrototype() override = default;
private:
JS_DECLARE_NATIVE_FUNCTION(resolved_options);
};
}