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LibJS: Implement Temporal.ZonedDateTime.prototype.offsetNanoseconds

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Linus Groh 2021-08-04 23:17:07 +01:00 • committed by Andreas Kling
parent dd36593c72
commit f937e9b966
4 changed files with 43 additions and 0 deletions
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20
Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.cpp
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@ -54,6 +54,7 @@ void ZonedDateTimePrototype::initialize(GlobalObject& global_object)
define_native_accessor(vm.names.daysInYear, days_in_year_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.monthsInYear, months_in_year_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.inLeapYear, in_leap_year_getter, {}, Attribute::Configurable);
define_native_accessor(vm.names.offsetNanoseconds, offset_nanoseconds_getter, {}, Attribute::Configurable);
}
static ZonedDateTime* typed_this(GlobalObject& global_object)
@ -651,4 +652,23 @@ JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::in_leap_year_getter)
return calendar_in_leap_year(global_object, calendar, *temporal_date_time);
}
// 6.3.28 get Temporal.ZonedDateTime.prototype.offsetNanoseconds, https://tc39.es/proposal-temporal/#sec-get-temporal.zoneddatetime.prototype.offsetnanoseconds
JS_DEFINE_NATIVE_FUNCTION(ZonedDateTimePrototype::offset_nanoseconds_getter)
{
// 1. Let zonedDateTime be the this value.
// 2. Perform ? RequireInternalSlot(zonedDateTime, [[InitializedTemporalZonedDateTime]]).
auto* zoned_date_time = typed_this(global_object);
if (vm.exception())
return {};
// 3. Let timeZone be zonedDateTime.[[TimeZone]].
auto& time_zone = zoned_date_time->time_zone();
// 4. Let instant be ! CreateTemporalInstant(zonedDateTime.[[Nanoseconds]]).
auto* instant = create_temporal_instant(global_object, zoned_date_time->nanoseconds());
// 5. Return 𝔽(? GetOffsetNanosecondsFor(timeZone, instant)).
return Value(get_offset_nanoseconds_for(global_object, &time_zone, *instant));
}
}

1
Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTimePrototype.h
View file

@ -43,6 +43,7 @@ private:
JS_DECLARE_NATIVE_FUNCTION(days_in_year_getter);
JS_DECLARE_NATIVE_FUNCTION(months_in_year_getter);
JS_DECLARE_NATIVE_FUNCTION(in_leap_year_getter);
JS_DECLARE_NATIVE_FUNCTION(offset_nanoseconds_getter);
};
}