public function adjustInto(Temporal $temporal, $newValue)
{
if ($this->isSupportedBy($temporal) === false) {
throw new UnsupportedTemporalTypeException("Unsupported field: WeekBasedYear");
}
$newWby = $this->range()->checkValidIntValue($newValue, IsoFields::WEEK_BASED_YEAR());
// strict check
$date = LocalDate::from($temporal);
$dow = $date->get(ChronoField::DAY_OF_WEEK());
$week = IsoFields::getWeek($date);
if ($week == 53 && IsoFields::getWeekRangeInt($newWby) == 52) {
$week = 52;
}
$resolved = LocalDate::of($newWby, 1, 4);
// 4th is guaranteed to be in week one
$days = $dow - $resolved->get(ChronoField::DAY_OF_WEEK()) + ($week - 1) * 7;
$resolved = $resolved->plusDays($days);
return $temporal->adjust($resolved);
}
