/**
* Calculates the Variables Inheritance of a class metric, this method only
* counts protected and public properties of parent classes.
*
* @param \PDepend\Source\AST\ASTClass $class The context class instance.
* @return integer
*/
private function calculateVarsi(ASTClass $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);
}
