optimized circular reference checker
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0009deb055
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@ -28,6 +28,7 @@ class CheckCircularReferencesPass implements CompilerPassInterface
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{
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{
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private $currentId;
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private $currentId;
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private $currentPath;
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private $currentPath;
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private $checkedNodes;
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/**
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/**
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* Checks the ContainerBuilder object for circular references.
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* Checks the ContainerBuilder object for circular references.
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@ -38,6 +39,7 @@ class CheckCircularReferencesPass implements CompilerPassInterface
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{
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{
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$graph = $container->getCompiler()->getServiceReferenceGraph();
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$graph = $container->getCompiler()->getServiceReferenceGraph();
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$this->checkedNodes = array();
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foreach ($graph->getNodes() as $id => $node) {
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foreach ($graph->getNodes() as $id => $node) {
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$this->currentId = $id;
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$this->currentId = $id;
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$this->currentPath = array($id);
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$this->currentPath = array($id);
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@ -58,15 +60,20 @@ class CheckCircularReferencesPass implements CompilerPassInterface
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foreach ($edges as $edge) {
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foreach ($edges as $edge) {
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$node = $edge->getDestNode();
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$node = $edge->getDestNode();
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$id = $node->getId();
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$id = $node->getId();
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$searchKey = array_search($id, $this->currentPath);
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$this->currentPath[] = $id;
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if (false !== $searchKey) {
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if (empty($this->checkedNodes[$id])) {
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throw new ServiceCircularReferenceException($id, array_slice($this->currentPath, $searchKey));
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$searchKey = array_search($id, $this->currentPath);
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$this->currentPath[] = $id;
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if (false !== $searchKey) {
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throw new ServiceCircularReferenceException($id, array_slice($this->currentPath, $searchKey));
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}
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$this->checkOutEdges($node->getOutEdges());
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$this->checkedNodes[$id] = true;
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array_pop($this->currentPath);
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}
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}
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$this->checkOutEdges($node->getOutEdges());
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array_pop($this->currentPath);
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}
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}
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}
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}
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}
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}
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