FileUploader::checkFile

public function checkFile(Field $field, array $fileData): Result
{
	$result = new Result();

	if ($field->getValueType() === Field::VALUE_TYPE_IMAGE)
	{
		$errors = $this->cfile::CheckImageFile($fileData);

		if (!empty($errors))
		{
			$result->addError(new Error($errors));
		}
	}

	return $result;
}