/**
* Calculates Maintainability Index
*
* @param \Hal\Metrics\Complexity\Text\Halstead\Result $rHalstead
* @param \Hal\Metrics\Complexity\Text\Length\Result $rLoc
* @param \Hal\Metrics\Complexity\Component\McCabe\Result $rMcCabe
* @return Result
*/
public function calculate(\Hal\Metrics\Complexity\Text\Halstead\Result $rHalstead, \Hal\Metrics\Complexity\Text\Length\Result $rLoc, \Hal\Metrics\Complexity\Component\McCabe\Result $rMcCabe)
{
$result = new Result();
$result->setMaintainabilityIndexWithoutComment(max((171 - 5.2 * \log($rHalstead->getVolume()) - 0.23 * $rMcCabe->getCyclomaticComplexityNumber() - 16.2 * \log($rLoc->getLogicalLoc())) * 100 / 171, 0));
// comment weight
if ($rLoc->getLoc() > 0) {
$CM = $rLoc->getCommentLoc() / $rLoc->getLoc();
$result->setCommentWeight(50 * sin(sqrt(2.4 * $CM)));
}
return $result;
}
/**
* get the cyclomatic complexity number
*
* @return int
*/
public function getCyclomaticComplexityNumber()
{
return !is_null($this->mcCabe) ? $this->mcCabe->getCyclomaticComplexityNumber() : 0;
}