/**
* Add a new dependency between two nodes.
* If the starting node or the dependend is not added to the graph yet, they will be added automatically.
*
* @param DependencyNode $node
* @param DependencyNode $dependsOn
*/
public function addDependency(DependencyNode $node, DependencyNode $dependsOn)
{
if (!$this->dependencies->contains($node)) {
$this->addNode($node);
}
if (!$this->dependencies->contains($dependsOn)) {
$this->addNode($dependsOn);
}
if (!$this->arrayObjectContains($dependsOn, $this->dependencies[$node])) {
$this->dependencies[$node]->append($dependsOn);
}
$node->dependsOn($dependsOn);
}
