BaseEntity::createFieldStorage

protected function createFieldStorage(): FieldStorage
{
	$fieldMap = $this->getFieldsMap();

	if ($fieldMap === null)
	{
		$typeCaster = new NullTypeCaster();
	}
	else
	{
		$typeCaster = new MapTypeCaster($fieldMap);
	}

	return new FieldStorage($typeCaster);
}