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LibJS: Implement Temporal.PlainYearMonth.prototype.add/subtract

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This commit is contained in:
Timothy Flynn
2024-11-21 19:09:21 -05:00
committed by Andreas Kling
parent cb5d1b5086
commit 35f22dcf79
8 changed files with 154 additions and 0 deletions
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13
Libraries/LibJS/Runtime/Temporal/Duration.cpp
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@@ -108,6 +108,19 @@ InternalDuration to_internal_duration_record_with_24_hour_days(VM& vm, Duration
return MUST(combine_date_and_time_duration(vm, date_duration, move(time_duration)));
}
// 7.5.7 ToDateDurationRecordWithoutTime ( duration ), https://tc39.es/proposal-temporal/#sec-temporal-todatedurationrecordwithouttime
ThrowCompletionOr<DateDuration> to_date_duration_record_without_time(VM& vm, Duration const& duration)
{
// 1. Let internalDuration be ToInternalDurationRecordWith24HourDays(duration).
auto internal_duration = to_internal_duration_record_with_24_hour_days(vm, duration);
// 2. Let days be truncate(internalDuration.[[Time]] / nsPerDay).
auto days = internal_duration.time.divided_by(NANOSECONDS_PER_DAY).quotient;
// 3. Return ? CreateDateDurationRecord(internalDuration.[[Date]].[[Years]], internalDuration.[[Date]].[[Months]], internalDuration.[[Date]].[[Weeks]], days).
return TRY(create_date_duration_record(vm, duration.years(), duration.months(), duration.weeks(), days.to_double()));
}
// 7.5.8 TemporalDurationFromInternal ( internalDuration, largestUnit ), https://tc39.es/proposal-temporal/#sec-temporal-temporaldurationfrominternal
ThrowCompletionOr<GC::Ref<Duration>> temporal_duration_from_internal(VM& vm, InternalDuration const& internal_duration, Unit largest_unit)
{