/**
* @return Numericity
*/
protected function parse()
{
$numericType = $this->parseNumericType();
$numericValue = $this->getAttribute(self::ATTR_NUMERIC_VALUE);
if ($numericValue === self::NOT_A_NUMBER) {
return new NonNumeric($numericType);
}
$numericValue = RationalNumber::fromString($numericValue);
return new Numeric($numericType, $numericValue);
}
