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");
}
}
/**
* Returns a copy of this {@code LocalDate} with the specified number of days added.
* <p>
* This method adds the specified amount to the days field incrementing the
* month and year fields as necessary to ensure the result remains valid.
* The result is only invalid if the maximum/minimum year is exceeded.
* <p>
* For example, 2008-12-31 plus one day would result in 2009-01-01.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param int $daysToAdd the days to add, may be negative
* @return LocalDate a {@code LocalDate} based on this date with the days added, not null
* @throws DateTimeException if the result exceeds the supported date range
*/
public function plusDays($daysToAdd)
{
if ($daysToAdd === 0) {
return $this;
}
try {
$mjDay = Math::addExact($this->toEpochDay(), $daysToAdd);
return self::ofEpochDay($mjDay);
} catch (ArithmeticException $ex) {
throw new DateTimeException('Value out of bounds', $ex);
}
}
private function nanosUntil(Instant $end)
{
$secsDiff = Math::subtractExact($end->seconds, $this->seconds);
$totalNanos = Math::multiplyExact($secsDiff, LocalTime::NANOS_PER_SECOND);
return Math::addExact($totalNanos, $end->nanos - $this->nanos);
}
/**
* @param int $amountToAdd
* @param TemporalUnit $unit
* @return static
* @throws UnsupportedTemporalTypeException
*/
public function plus($amountToAdd, TemporalUnit $unit)
{
if ($unit instanceof CU) {
switch ($unit) {
case CU::DAYS():
return $this->plusDays($amountToAdd);
case CU::WEEKS():
return $this->plusDays(Math::multiplyExact($amountToAdd, 7));
case CU::MONTHS():
return $this->plusMonths($amountToAdd);
case CU::YEARS():
return $this->plusYears($amountToAdd);
case CU::DECADES():
return $this->plusYears(Math::multiplyExact($amountToAdd, 10));
case CU::CENTURIES():
return $this->plusYears(Math::multiplyExact($amountToAdd, 100));
case CU::MILLENNIA():
return $this->plusYears(Math::multiplyExact($amountToAdd, 1000));
case CU::ERAS():
return $this->with(CF::ERA(), Math::addExact($this->getLong(CF::ERA()), $amountToAdd));
}
throw new UnsupportedTemporalTypeException("Unsupported unit: " . $unit);
}
return parent::plus($amountToAdd, $unit);
}
/**
* Converts this duration to the total length in nanoseconds expressed as a {@code long}.
* <p>
* If this duration is too large to fit in a {@code long} nanoseconds, then an
* exception is thrown.
*
* @return int the total length of the duration in nanoseconds
* @throws ArithmeticException if numeric overflow occurs
*/
public function toNanos()
{
$totalNanos = Math::multiplyExact($this->seconds, LocalTime::NANOS_PER_SECOND);
$totalNanos = Math::addExact($totalNanos, $this->nanos);
return $totalNanos;
}
/**
* Returns a copy of this year with the specified amount added.
* <p>
* This returns a {@code Year}, based on this one, with the amount
* in terms of the unit added. If it is not possible to add the amount, because the
* unit is not supported or for some other reason, an exception is thrown.
* <p>
* If the field is a {@link ChronoUnit} then the addition is implemented here.
* The supported fields behave as follows:
* <ul>
* <li>{@code YEARS} -
* Returns a {@code Year} with the specified number of years added.
* This is equivalent to {@link #plusYears(long)}.
* <li>{@code DECADES} -
* Returns a {@code Year} with the specified number of decades added.
* This is equivalent to calling {@link #plusYears(long)} with the amount
* multiplied by 10.
* <li>{@code CENTURIES} -
* Returns a {@code Year} with the specified number of centuries added.
* This is equivalent to calling {@link #plusYears(long)} with the amount
* multiplied by 100.
* <li>{@code MILLENNIA} -
* Returns a {@code Year} with the specified number of millennia added.
* This is equivalent to calling {@link #plusYears(long)} with the amount
* multiplied by 1,000.
* <li>{@code ERAS} -
* Returns a {@code Year} with the specified number of eras added.
* Only two eras are supported so the amount must be one, zero or minus one.
* If the amount is non-zero then the year is changed such that the year-of-era
* is unchanged.
* </ul>
* <p>
* All other {@code ChronoUnit} instances will throw an {@code UnsupportedTemporalTypeException}.
* <p>
* If the field is not a {@code ChronoUnit}, then the result of this method
* is obtained by invoking {@code TemporalUnit.addTo(Temporal, long)}
* passing {@code this} as the argument. In this case, the unit determines
* whether and how to perform the addition.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param int $amountToAdd the amount of the unit to add to the result, may be negative
* @param TemporalUnit $unit the unit of the amount to add, not null
* @return Year a {@code Year} based on this year with the specified amount added, not null
* @throws DateTimeException if the addition cannot be made
* @throws UnsupportedTemporalTypeException if the unit is not supported
* @throws ArithmeticException if numeric overflow occurs
*/
public function plus($amountToAdd, TemporalUnit $unit)
{
if ($unit instanceof ChronoUnit) {
switch ($unit) {
case ChronoUnit::YEARS():
return $this->plusYears($amountToAdd);
case ChronoUnit::DECADES():
return $this->plusYears(Math::multiplyExact($amountToAdd, 10));
case ChronoUnit::CENTURIES():
return $this->plusYears(Math::multiplyExact($amountToAdd, 100));
case ChronoUnit::MILLENNIA():
return $this->plusYears(Math::multiplyExact($amountToAdd, 1000));
case ChronoUnit::ERAS():
return $this->with(ChronoField::ERA(), Math::addExact($this->getLong(ChronoField::ERA()), $amountToAdd));
}
throw new UnsupportedTemporalTypeException("Unsupported unit: " . $unit);
}
return $unit->addTo($this, $amountToAdd);
}
private function resolveTime($hod, $moh, $som, $nos)
{
if ($this->resolverStyle == ResolverStyle::LENIENT()) {
$totalNanos = Math::multiplyExact($hod, 3600000000000);
$totalNanos = Math::addExact($totalNanos, Math::multiplyExact($moh, 60000000000));
$totalNanos = Math::addExact($totalNanos, Math::multiplyExact($som, 1000000000));
$totalNanos = Math::addExact($totalNanos, $nos);
$excessDays = (int) Math::floorDiv($totalNanos, 86400000000000);
// safe int cast
$nod = Math::floorMod($totalNanos, 86400000000000);
$this->updateCheckConflict(LocalTime::ofNanoOfDay($nod), Period::ofDays($excessDays));
} else {
// STRICT or SMART
$mohVal = CF::MINUTE_OF_HOUR()->checkValidIntValue($moh);
$nosVal = CF::NANO_OF_SECOND()->checkValidIntValue($nos);
// handle 24:00 end of day
if ($this->resolverStyle == ResolverStyle::SMART() && $hod == 24 && $mohVal == 0 && $som == 0 && $nosVal == 0) {
$this->updateCheckConflict(LocalTime::MIDNIGHT(), Period::ofDays(1));
} else {
$hodVal = CF::HOUR_OF_DAY()->checkValidIntValue($hod);
$somVal = CF::SECOND_OF_MINUTE()->checkValidIntValue($som);
$this->updateCheckConflict(LocalTime::of($hodVal, $mohVal, $somVal, $nosVal), Period::ZERO());
}
}
}
/**
* Calculates the amount of time until another date-time in terms of the specified unit.
* <p>
* This calculates the amount of time between two {@code LocalDateTime}
* objects in terms of a single {@code TemporalUnit}.
* The start and end points are {@code this} and the specified date-time.
* The result will be negative if the end is before the start.
* The {@code Temporal} passed to this method is converted to a
* {@code LocalDateTime} using {@link #from(TemporalAccessor)}.
* For example, the amount in days between two date-times can be calculated
* using {@code startDateTime.until(endDateTime, DAYS)}.
* <p>
* The calculation returns a whole number, representing the number of
* complete units between the two date-times.
* For example, the amount in months between 2012-06-15T00:00 and 2012-08-14T23:59
* will only be one month as it is one minute short of two months.
* <p>
* There are two equivalent ways of using this method.
* The first is to invoke this method.
* The second is to use {@link TemporalUnit#between(Temporal, Temporal)}:
* <pre>
* // these two lines are equivalent
* amount = start.until(end, MONTHS);
* amount = MONTHS.between(start, end);
* </pre>
* The choice should be made based on which makes the code more readable.
* <p>
* The calculation is implemented in this method for {@link ChronoUnit}.
* The units {@code NANOS}, {@code MICROS}, {@code MILLIS}, {@code SECONDS},
* {@code MINUTES}, {@code HOURS} and {@code HALF_DAYS}, {@code DAYS},
* {@code WEEKS}, {@code MONTHS}, {@code YEARS}, {@code DECADES},
* {@code CENTURIES}, {@code MILLENNIA} and {@code ERAS} are supported.
* Other {@code ChronoUnit} values will throw an exception.
* <p>
* If the unit is not a {@code ChronoUnit}, then the result of this method
* is obtained by invoking {@code TemporalUnit.between(Temporal, Temporal)}
* passing {@code this} as the first argument and the converted input temporal
* as the second argument.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param Temporal $endExclusive the end date, exclusive, which is converted to a {@code LocalDateTime}, not null
* @param TemporalUnit $unit the unit to measure the amount in, not null
* @return int the amount of time between this date-time and the end date-time
* @throws DateTimeException if the amount cannot be calculated, or the end
* temporal cannot be converted to a {@code LocalDateTime}
* @throws UnsupportedTemporalTypeException if the unit is not supported
* @throws ArithmeticException if numeric overflow occurs
*/
public function until(Temporal $endExclusive, TemporalUnit $unit)
{
$end = LocalDateTime::from($endExclusive);
if ($unit instanceof ChronoUnit) {
if ($unit->isTimeBased()) {
$amount = $this->date->daysUntil($end->date);
if ($amount === 0) {
return $this->time->until($end->time, $unit);
}
$timePart = $end->time->toNanoOfDay() - $this->time->toNanoOfDay();
if ($amount > 0) {
$amount--;
// safe
$timePart += LocalTime::NANOS_PER_DAY;
// safe
} else {
$amount++;
// safe
$timePart -= LocalTime::NANOS_PER_DAY;
// safe
}
switch ($unit) {
case ChronoUnit::NANOS():
$amount = Math::multiplyExact($amount, LocalTime::NANOS_PER_DAY);
break;
case ChronoUnit::MICROS():
$amount = Math::multiplyExact($amount, LocalTime::MICROS_PER_DAY);
$timePart = Math::div($timePart, 1000);
break;
case ChronoUnit::MILLIS():
$amount = Math::multiplyExact($amount, LocalTime::MILLIS_PER_DAY);
$timePart = Math::div($timePart, 1000000);
break;
case ChronoUnit::SECONDS():
$amount = Math::multiplyExact($amount, LocalTime::SECONDS_PER_DAY);
$timePart = Math::div($timePart, LocalTime::NANOS_PER_SECOND);
break;
case ChronoUnit::MINUTES():
$amount = Math::multiplyExact($amount, LocalTime::MINUTES_PER_DAY);
$timePart = Math::div($timePart, LocalTime::NANOS_PER_MINUTE);
break;
case ChronoUnit::HOURS():
$amount = Math::multiplyExact($amount, LocalTime::HOURS_PER_DAY);
$timePart = Math::div($timePart, LocalTime::NANOS_PER_HOUR);
break;
case ChronoUnit::HALF_DAYS():
$amount = Math::multiplyExact($amount, 2);
$timePart = Math::div($timePart, LocalTime::NANOS_PER_HOUR * 12);
break;
}
return Math::addExact($amount, $timePart);
}
$endDate = $end->date;
if ($endDate->isAfter($this->date) && $end->time->isBefore($this->time)) {
$endDate = $endDate->minusDays(1);
} else {
if ($endDate->isBefore($this->date) && $end->time->isAfter($this->time)) {
$endDate = $endDate->plusDays(1);
}
}
return $this->date->until($endDate, $unit);
}
return $unit->between($this, $end);
}
private function resolveWoY(FieldValues $fieldValues, Chronology $chrono, $year, $woy, $localDow, ResolverStyle $resolverStyle)
{
$date = $chrono->date($year, 1, 1);
if ($resolverStyle == ResolverStyle::LENIENT()) {
$weeks = Math::subtractExact($woy, $this->localizedWeekOfYear($date));
$days = $localDow - $this->localizedDayOfWeek($date);
// safe from overflow
$date = $date->plus(Math::addExact(Math::multiplyExact($weeks, 7), $days), ChronoUnit::DAYS());
} else {
$womInt = $this->range->checkValidIntValue($woy, $this);
// validate
$weeks = (int) ($womInt - $this->localizedWeekOfYear($date));
// safe from overflow
$days = $localDow - $this->localizedDayOfWeek($date);
// safe from overflow
$date = $date->plus($weeks * 7 + $days, ChronoUnit::DAYS());
if ($resolverStyle == ResolverStyle::STRICT() && $date->getLong(CF::YEAR()) !== $year) {
throw new DateTimeException("Strict mode rejected resolved date as it is in a different year");
}
}
$fieldValues->remove($this);
$fieldValues->remove(CF::YEAR());
$fieldValues->remove(CF::DAY_OF_WEEK());
return $date;
}
public function until(Temporal $endExclusive, TemporalUnit $unit)
{
$end = $this->getChronology()->localDateTime($endExclusive);
if ($unit instanceof ChronoUnit) {
if ($unit->isTimeBased()) {
$amount = $end->getLong(ChronoField::EPOCH_DAY()) - $this->date->getLong(ChronoField::EPOCH_DAY());
switch ($unit) {
case ChronoUnit::NANOS():
$amount = Math::multiplyExact($amount, self::NANOS_PER_DAY);
break;
case ChronoUnit::MICROS():
$amount = Math::multiplyExact($amount, self::MICROS_PER_DAY);
break;
case ChronoUnit::MILLIS():
$amount = Math::multiplyExact($amount, self::MILLIS_PER_DAY);
break;
case ChronoUnit::SECONDS():
$amount = Math::multiplyExact($amount, self::SECONDS_PER_DAY);
break;
case ChronoUnit::MINUTES():
$amount = Math::multiplyExact($amount, self::MINUTES_PER_DAY);
break;
case ChronoUnit::HOURS():
$amount = Math::multiplyExact($amount, self::HOURS_PER_DAY);
break;
case ChronoUnit::HALF_DAYS():
$amount = Math::multiplyExact($amount, 2);
break;
}
return Math::addExact($amount, $this->time->until($end->toLocalTime(), $unit));
}
$endDate = $end->toLocalDate();
if ($end->toLocalTime()->isBefore($this->time)) {
$endDate = $endDate->minus(1, ChronoUnit::DAYS());
}
return $this->date->until($endDate, $unit);
}
return $unit->between($this, $end);
}
/**
* Gets the total number of months in this period.
* <p>
* This returns the total number of months in the period by multiplying the
* number of years by 12 and adding the number of months.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @return int the total number of months in the period, may be negative
*/
public function toTotalMonths()
{
return Math::addExact(Math::multiplyExact($this->years, 12), $this->months);
}
