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LibJS: Implement Temporal.Calendar.prototype.daysInWeek

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Idan Horowitz 2021-07-23 18:27:47 +03:00 • committed by Linus Groh
parent 2cf582436f
commit 623df361e6
4 changed files with 36 additions and 0 deletions
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23
Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.cpp
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@ -38,6 +38,7 @@ void CalendarPrototype::initialize(GlobalObject& global_object)
define_native_function(vm.names.dayOfWeek, day_of_week, 1, attr);
define_native_function(vm.names.dayOfYear, day_of_year, 1, attr);
define_native_function(vm.names.weekOfYear, week_of_year, 1, attr);
define_native_function(vm.names.daysInWeek, days_in_week, 1, attr);
define_native_function(vm.names.toString, to_string, 0, attr);
define_native_function(vm.names.toJSON, to_json, 0, attr);
}
@ -277,6 +278,28 @@ JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::week_of_year)
return Value(to_iso_week_of_year(temporal_date->iso_year(), temporal_date->iso_month(), temporal_date->iso_day()));
}
// 12.4.16 Temporal.Calendar.prototype.daysInWeek ( temporalDateLike ), https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.daysinweek
// NOTE: This is the minimum daysInWeek implementation for engines without ECMA-402.
JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::days_in_week)
{
// 1. Let calendar be the this value.
// 2. Perform ? RequireInternalSlot(calendar, [[InitializedTemporalCalendar]]).
auto* calendar = typed_this(global_object);
if (vm.exception())
return {};
// 3. Assert: calendar.[[Identifier]] is "iso8601".
VERIFY(calendar->identifier() == "iso8601"sv);
// 4. Let temporalDate be ? ToTemporalDate(temporalDateLike).
[[maybe_unused]] auto* temporal_date = to_temporal_date(global_object, vm.argument(0));
if (vm.exception())
return {};
// 5. Return 7𝔽.
return Value(7);
}
// 12.4.23 Temporal.Calendar.prototype.toString ( ), https://tc39.es/proposal-temporal/#sec-temporal.calendar.prototype.tostring
JS_DEFINE_NATIVE_FUNCTION(CalendarPrototype::to_string)
{

1
Userland/Libraries/LibJS/Runtime/Temporal/CalendarPrototype.h
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@ -28,6 +28,7 @@ private:
JS_DECLARE_NATIVE_FUNCTION(day_of_week);
JS_DECLARE_NATIVE_FUNCTION(day_of_year);
JS_DECLARE_NATIVE_FUNCTION(week_of_year);
JS_DECLARE_NATIVE_FUNCTION(days_in_week);
JS_DECLARE_NATIVE_FUNCTION(to_string);
JS_DECLARE_NATIVE_FUNCTION(to_json);
};