/**
* Calculates two metrics. The number of added methods and the number of
* overwritten methods.
*
* @param \PDepend\Source\AST\ASTClass $class
* @return void
* @since 0.9.10
*/
private function calculateNumberOfAddedAndOverwrittenMethods(ASTClass $class)
{
$parentClass = $class->getParentClass();
if ($parentClass === null) {
return;
}
$parentMethodNames = array();
foreach ($parentClass->getAllMethods() as $method) {
$parentMethodNames[$method->getName()] = $method->isAbstract();
}
$numberOfAddedMethods = 0;
$numberOfOverwrittenMethods = 0;
foreach ($class->getAllMethods() as $method) {
if ($method->getParent() !== $class) {
continue;
}
if (isset($parentMethodNames[$method->getName()])) {
if (!$parentMethodNames[$method->getName()]) {
++$numberOfOverwrittenMethods;
}
} else {
++$numberOfAddedMethods;
}
}
$id = $class->getId();
$this->nodeMetrics[$id][self::M_NUMBER_OF_ADDED_METHODS] = $numberOfAddedMethods;
$this->nodeMetrics[$id][self::M_NUMBER_OF_OVERWRITTEN_METHODS] = $numberOfOverwrittenMethods;
}