/**
* Calculates the Variables Inheritance of a class metric, this method only
* counts protected and public properties of parent classes.
*
* @param PHP_Depend_Code_Class $class The context class instance.
*
* @return integer
*/
private function _calculateVARSi(PHP_Depend_Code_Class $class)
{
// List of properties, this method only counts not overwritten properties
$properties = array();
// Collect all properties of the context class
foreach ($class->getProperties() as $prop) {
$properties[$prop->getName()] = true;
}
// Get parent class and collect all non private properties
$parent = $class->getParentClass();
while ($parent !== null) {
// Get all parent properties
foreach ($parent->getProperties() as $prop) {
if (!$prop->isPrivate() && !isset($properties[$prop->getName()])) {
$properties[$prop->getName()] = true;
}
}
// Get next parent
$parent = $parent->getParentClass();
}
return count($properties);
}
/**
* Calculates the Variables Inheritance of a class metric, this method only
* counts protected and public properties of parent classes.
*
* @param PHP_Depend_Code_Class $class The context class instance.
*
* @return integer
*/
private function calculateVarsi(PHP_Depend_Code_Class $class)
{
// List of properties, this method only counts not overwritten properties
$properties = array();
// Collect all properties of the context class
foreach ($class->getProperties() as $prop) {
$properties[$prop->getName()] = true;
}
foreach ($class->getParentClasses() as $parent) {
foreach ($parent->getProperties() as $prop) {
if (!$prop->isPrivate() && !isset($properties[$prop->getName()])) {
$properties[$prop->getName()] = true;
}
}
}
return count($properties);
}
