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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\DependencyInjection\Compiler;
- use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
- /**
- * This is a directed graph of your services.
- *
- * This information can be used by your compiler passes instead of collecting
- * it themselves which improves performance quite a lot.
- *
- * @author Johannes M. Schmitt <schmittjoh@gmail.com>
- *
- * @final
- */
- class ServiceReferenceGraph
- {
- /**
- * @var ServiceReferenceGraphNode[]
- */
- private $nodes = [];
- public function hasNode(string $id): bool
- {
- return isset($this->nodes[$id]);
- }
- /**
- * Gets a node by identifier.
- *
- * @throws InvalidArgumentException if no node matches the supplied identifier
- */
- public function getNode(string $id): ServiceReferenceGraphNode
- {
- if (!isset($this->nodes[$id])) {
- throw new InvalidArgumentException(sprintf('There is no node with id "%s".', $id));
- }
- return $this->nodes[$id];
- }
- /**
- * Returns all nodes.
- *
- * @return ServiceReferenceGraphNode[]
- */
- public function getNodes(): array
- {
- return $this->nodes;
- }
- /**
- * Clears all nodes.
- */
- public function clear()
- {
- foreach ($this->nodes as $node) {
- $node->clear();
- }
- $this->nodes = [];
- }
- /**
- * Connects 2 nodes together in the Graph.
- */
- public function connect(?string $sourceId, $sourceValue, ?string $destId, $destValue = null, $reference = null, bool $lazy = false, bool $weak = false, bool $byConstructor = false)
- {
- if (null === $sourceId || null === $destId) {
- return;
- }
- $sourceNode = $this->createNode($sourceId, $sourceValue);
- $destNode = $this->createNode($destId, $destValue);
- $edge = new ServiceReferenceGraphEdge($sourceNode, $destNode, $reference, $lazy, $weak, $byConstructor);
- $sourceNode->addOutEdge($edge);
- $destNode->addInEdge($edge);
- }
- private function createNode(string $id, $value): ServiceReferenceGraphNode
- {
- if (isset($this->nodes[$id]) && $this->nodes[$id]->getValue() === $value) {
- return $this->nodes[$id];
- }
- return $this->nodes[$id] = new ServiceReferenceGraphNode($id, $value);
- }
- }
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