/**
* @inheritdoc
*/
public function isSupportedBy(Temporal $temporal)
{
if ($temporal instanceof LocalTime) {
return $this->isTimeBased();
}
if ($temporal instanceof ChronoLocalDate) {
return $this->isDateBased();
}
if ($temporal instanceof ChronoLocalDateTime || $temporal instanceof ChronoZonedDateTime) {
return true;
}
try {
$temporal->plus(1, $this);
return true;
} catch (UnsupportedTemporalTypeException $ex) {
return false;
} catch (\RuntimeException $ex) {
try {
$temporal->plus(-1, $this);
return true;
} catch (\RuntimeException $ex2) {
return false;
}
}
}
public function adjustInto(Temporal $temporal, $newValue)
{
// calls getFrom() to check if supported
$this->range()->checkValidValue($newValue, $this);
// lenient range
return $temporal->plus(Math::subtractExact($newValue, $this->getFrom($temporal)), ChronoUnit::WEEKS());
}
public function addTo(Temporal $temporal, $amount)
{
switch ($this) {
case IsoFields::WEEK_BASED_YEARS():
return $temporal->with(IsoFields::WEEK_BASED_YEAR(), Math::addExact($temporal->get(IsoFields::WEEK_BASED_YEAR()), $amount));
case IsoFields::QUARTER_YEARS():
// no overflow (256 is multiple of 4)
return $temporal->plus($amount / 256, ChronoUnit::YEARS())->plus($amount % 256 * 3, ChronoUnit::MONTHS());
default:
throw new IllegalStateException("Unreachable");
}
}
public function addTo(Temporal $temporal, $amount)
{
return $temporal->plus($amount, $this);
}
public function addTo(Temporal $temporal)
{
return $temporal->plus($this->amount, $this->unit);
}
