public function parse(DateTimeParseContext $context, $text, $position)
{
// TODO cache formatter
// new context to avoid overwriting fields like year/month/day
$minDigits = $this->fractionalDigits < 0 ? 0 : $this->fractionalDigits;
$maxDigits = $this->fractionalDigits < 0 ? 9 : $this->fractionalDigits;
$parser = (new DateTimeFormatterBuilder())->append(DateTimeFormatter::ISO_LOCAL_DATE())->appendLiteral('T')->appendValue2(ChronoField::HOUR_OF_DAY(), 2)->appendLiteral(':')->appendValue2(ChronoField::MINUTE_OF_HOUR(), 2)->appendLiteral(':')->appendValue2(ChronoField::SECOND_OF_MINUTE(), 2)->appendFraction(ChronoField::NANO_OF_SECOND(), $minDigits, $maxDigits, true)->appendLiteral('Z')->toFormatter()->toPrinterParser(false);
$newContext = $context->copy();
$pos = $parser->parse($newContext, $text, $position);
if ($pos < 0) {
return $pos;
}
// parser restricts most fields to 2 digits, so definitely int
// correctly parsed nano is also guaranteed to be valid
$yearParsed = $newContext->getParsed(ChronoField::YEAR());
$month = $newContext->getParsed(ChronoField::MONTH_OF_YEAR());
$day = $newContext->getParsed(ChronoField::DAY_OF_MONTH());
$hour = $newContext->getParsed(ChronoField::HOUR_OF_DAY());
$min = $newContext->getParsed(ChronoField::MINUTE_OF_HOUR());
$secVal = $newContext->getParsed(ChronoField::SECOND_OF_MINUTE());
$nanoVal = $newContext->getParsed(ChronoField::NANO_OF_SECOND());
$sec = $secVal !== null ? $secVal : 0;
$nano = $nanoVal !== null ? $nanoVal : 0;
$days = 0;
if ($hour === 24 && $min === 0 && $sec === 0 && $nano === 0) {
$hour = 0;
$days = 1;
} else {
if ($hour === 23 && $min === 59 && $sec === 60) {
$context->setParsedLeapSecond();
$sec = 59;
}
}
$year = $yearParsed % 10000;
try {
$ldt = LocalDateTime::of($year, $month, $day, $hour, $min, $sec, 0)->plusDays($days);
$instantSecs = $ldt->toEpochSecond(ZoneOffset::UTC());
$instantSecs += Math::multiplyExact(Math::div($yearParsed, 10000), self::SECONDS_PER_10000_YEARS);
} catch (RuntimeException $ex) {
// TODO What do we actually catch here and why
return ~$position;
}
$successPos = $pos;
$successPos = $context->setParsedField(ChronoField::INSTANT_SECONDS(), $instantSecs, $position, $successPos);
return $context->setParsedField(ChronoField::NANO_OF_SECOND(), $nano, $position, $successPos);
}
