/**
* Convert the given time duration in the given unit to this
* unit. Conversions from finer to coarser granularities
* truncate, so lose precision. For example converting
* 999 milliseconds to seconds results in
* 0. Conversions from coarser to finer granularities
* with arguments that would numerically overflow saturate to
* "-PHP_INT_MAX -1" if negative or "PHP_INT_MAX"
* if positive.
*
* For example, to convert 10 minutes to milliseconds, use:
* TimeUnit::MILLISECONDS()->convert(10, TimeUnit::MINUTES);
*
* @param int $sourceDuration the time duration in the given source unit
* @param TimeUnit $sourceUnit the unit of the source duration argument
* @return float|int
*/
public function convert($sourceDuration, TimeUnit $sourceUnit)
{
switch ($this->getValue()) {
case self::NANOSECONDS:
return $sourceUnit->toNanos($sourceDuration);
case self::MICROSECONDS:
return $sourceUnit->toMicros($sourceDuration);
case self::MILLISECONDS:
return $sourceUnit->toMillis($sourceDuration);
case self::SECONDS:
return $sourceUnit->toSeconds($sourceDuration);
case self::MINUTES:
return $sourceUnit->toMinutes($sourceDuration);
case self::HOURS:
return $sourceUnit->toHours($sourceDuration);
case self::DAYS:
return $sourceUnit->toDays($sourceDuration);
}
}