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LibJS: Implement Temporal.Calendar.prototype.dayOfYear

This commit is contained in:
Idan Horowitz 2021-07-23 17:58:44 +03:00 committed by Linus Groh
parent bcbfd5b280
commit c0e7761758
6 changed files with 52 additions and 0 deletions

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@ -416,6 +416,21 @@ u8 to_iso_day_of_week(i32 year, u8 month, u8 day)
return result;
}
// 12.1.34 ToISODayOfYear ( year, month, day ), https://tc39.es/proposal-temporal/#sec-temporal-toisodayofyear
u16 to_iso_day_of_year(i32 year, u8 month, u8 day)
{
// 1. Assert: year is an integer.
// 2. Assert: month is an integer.
// 3. Assert: day is an integer.
// 4. Let date be the date given by year, month, and day.
// 5. Return date's ordinal date in the year according to ISO-8601.
u16 days = day;
for (u8 i = month - 1; i > 0; --i)
days += iso_days_in_month(year, i);
return days;
}
// 12.1.36 BuildISOMonthCode ( month ), https://tc39.es/proposal-temporal/#sec-buildisomonthcode
String build_iso_month_code(i32 month)
{