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File Content: `ServiceReferenceGraph.php`

<?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>
 */
class ServiceReferenceGraph
{
    /**
     * @var ServiceReferenceGraphNode[]
     */
    private $nodes = array();

    /**
     * Checks if the graph has a specific node.
     *
     * @param string $id Id to check
     *
     * @return Boolean
     */
    public function hasNode($id)
    {
        return isset($this->nodes[$id]);
    }

    /**
     * Gets a node by identifier.
     *
     * @param string $id The id to retrieve
     *
     * @return ServiceReferenceGraphNode The node matching the supplied identifier
     *
     * @throws InvalidArgumentException if no node matches the supplied identifier
     */
    public function getNode($id)
    {
        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[] An array of all ServiceReferenceGraphNode objects
     */
    public function getNodes()
    {
        return $this->nodes;
    }

    /**
     * Clears all nodes.
     */
    public function clear()
    {
        $this->nodes = array();
    }

    /**
     * Connects 2 nodes together in the Graph.
     *
     * @param string $sourceId
     * @param string $sourceValue
     * @param string $destId
     * @param string $destValue
     * @param string $reference
     */
    public function connect($sourceId, $sourceValue, $destId, $destValue = null, $reference = null)
    {
        $sourceNode = $this->createNode($sourceId, $sourceValue);
        $destNode = $this->createNode($destId, $destValue);
        $edge = new ServiceReferenceGraphEdge($sourceNode, $destNode, $reference);

        $sourceNode->addOutEdge($edge);
        $destNode->addInEdge($edge);
    }

    /**
     * Creates a graph node.
     *
     * @param string $id
     * @param string $value
     *
     * @return ServiceReferenceGraphNode
     */
    private function createNode($id, $value)
    {
        if (isset($this->nodes[$id]) && $this->nodes[$id]->getValue() === $value) {
            return $this->nodes[$id];
        }

        return $this->nodes[$id] = new ServiceReferenceGraphNode($id, $value);
    }
}

Name	Size	Permission
AnalyzeServiceReferencesPass.php	4512 bytes	0644
CheckCircularReferencesPass.php	2417 bytes	0644
CheckDefinitionValidityPass.php	3684 bytes	0644
CheckExceptionOnInvalidReferenceBehaviorPass.php	2102 bytes	0644
CheckReferenceValidityPass.php	5634 bytes	0644
Compiler.php	2613 bytes	0644
CompilerPassInterface.php	746 bytes	0644
InlineServiceDefinitionsPass.php	4592 bytes	0644
LoggingFormatter.php	1468 bytes	0644
MergeExtensionConfigurationPass.php	1884 bytes	0644
PassConfig.php	6040 bytes	0644
RemoveAbstractDefinitionsPass.php	1063 bytes	0644
RemovePrivateAliasesPass.php	1267 bytes	0644
RemoveUnusedDefinitionsPass.php	2772 bytes	0644
RepeatablePassInterface.php	691 bytes	0644
RepeatedPass.php	2083 bytes	0644
ReplaceAliasByActualDefinitionPass.php	4166 bytes	0644
ResolveDefinitionTemplatesPass.php	5550 bytes	0644
ResolveInvalidReferencesPass.php	3500 bytes	0644
ResolveParameterPlaceHoldersPass.php	2158 bytes	0644
ResolveReferencesToAliasesPass.php	2896 bytes	0644
ServiceReferenceGraph.php	2857 bytes	0644
ServiceReferenceGraphEdge.php	1517 bytes	0644
ServiceReferenceGraphNode.php	2545 bytes	0644

File Content: ServiceReferenceGraph.php

File Content: `ServiceReferenceGraph.php`