64 lines
1.5 KiB
PHP
64 lines
1.5 KiB
PHP
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<?php
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namespace Symfony\Component\DependencyInjection\Compiler;
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/**
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* This is a directed graph of your services.
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*
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* This information can be used by your compiler passes instead of collecting
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* it themselves which improves performance quite a lot.
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*
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* @author Johannes M. Schmitt <schmittjoh@gmail.com>
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*/
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class ServiceReferenceGraph
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{
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protected $nodes;
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public function __construct()
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{
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$this->nodes = array();
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}
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public function hasNode($id)
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{
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return isset($this->nodes[$id]);
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}
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public function getNode($id)
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{
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if (!isset($this->nodes[$id])) {
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throw new \InvalidArgumentException(sprintf('There is no node with id "%s".', $id));
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}
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return $this->nodes[$id];
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}
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public function getNodes()
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{
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return $this->nodes;
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}
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public function clear()
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{
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$this->nodes = array();
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}
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public function connect($sourceId, $sourceValue, $destId, $destValue = null, $reference = null)
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{
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$sourceNode = $this->createNode($sourceId, $sourceValue);
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$destNode = $this->createNode($destId, $destValue);
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$edge = new ServiceReferenceGraphEdge($sourceNode, $destNode, $reference);
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$sourceNode->addOutEdge($edge);
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$destNode->addInEdge($edge);
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}
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protected function createNode($id, $value)
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{
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if (isset($this->nodes[$id]) && $this->nodes[$id]->getValue() === $value) {
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return $this->nodes[$id];
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}
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return $this->nodes[$id] = new ServiceReferenceGraphNode($id, $value);
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}
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}
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