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admin/phpMyAdmin/vendor/symfony/dependency-injection/Compiler/ResolveInvalidReferencesPass.php

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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\Argument\ArgumentInterface;
+use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\TypedReference;
+
+/**
+ * Emulates the invalid behavior if the reference is not found within the
+ * container.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ResolveInvalidReferencesPass implements CompilerPassInterface
+{
+    private $container;
+    private $signalingException;
+    private $currentId;
+
+    /**
+     * Process the ContainerBuilder to resolve invalid references.
+     */
+    public function process(ContainerBuilder $container)
+    {
+        $this->container = $container;
+        $this->signalingException = new RuntimeException('Invalid reference.');
+
+        try {
+            foreach ($container->getDefinitions() as $this->currentId => $definition) {
+                $this->processValue($definition);
+            }
+        } finally {
+            $this->container = $this->signalingException = null;
+        }
+    }
+
+    /**
+     * Processes arguments to determine invalid references.
+     *
+     * @return mixed
+     *
+     * @throws RuntimeException When an invalid reference is found
+     */
+    private function processValue($value, int $rootLevel = 0, int $level = 0)
+    {
+        if ($value instanceof ServiceClosureArgument) {
+            $value->setValues($this->processValue($value->getValues(), 1, 1));
+        } elseif ($value instanceof ArgumentInterface) {
+            $value->setValues($this->processValue($value->getValues(), $rootLevel, 1 + $level));
+        } elseif ($value instanceof Definition) {
+            if ($value->isSynthetic() || $value->isAbstract()) {
+                return $value;
+            }
+            $value->setArguments($this->processValue($value->getArguments(), 0));
+            $value->setProperties($this->processValue($value->getProperties(), 1));
+            $value->setMethodCalls($this->processValue($value->getMethodCalls(), 2));
+        } elseif (\is_array($value)) {
+            $i = 0;
+
+            foreach ($value as $k => $v) {
+                try {
+                    if (false !== $i && $k !== $i++) {
+                        $i = false;
+                    }
+                    if ($v !== $processedValue = $this->processValue($v, $rootLevel, 1 + $level)) {
+                        $value[$k] = $processedValue;
+                    }
+                } catch (RuntimeException $e) {
+                    if ($rootLevel < $level || ($rootLevel && !$level)) {
+                        unset($value[$k]);
+                    } elseif ($rootLevel) {
+                        throw $e;
+                    } else {
+                        $value[$k] = null;
+                    }
+                }
+            }
+
+            // Ensure numerically indexed arguments have sequential numeric keys.
+            if (false !== $i) {
+                $value = array_values($value);
+            }
+        } elseif ($value instanceof Reference) {
+            if ($this->container->has($id = (string) $value)) {
+                return $value;
+            }
+
+            $currentDefinition = $this->container->getDefinition($this->currentId);
+
+            // resolve decorated service behavior depending on decorator service
+            if ($currentDefinition->innerServiceId === $id && ContainerInterface::NULL_ON_INVALID_REFERENCE === $currentDefinition->decorationOnInvalid) {
+                return null;
+            }
+
+            $invalidBehavior = $value->getInvalidBehavior();
+
+            if (ContainerInterface::RUNTIME_EXCEPTION_ON_INVALID_REFERENCE === $invalidBehavior && $value instanceof TypedReference && !$this->container->has($id)) {
+                $e = new ServiceNotFoundException($id, $this->currentId);
+
+                // since the error message varies by $id and $this->currentId, so should the id of the dummy errored definition
+                $this->container->register($id = sprintf('.errored.%s.%s', $this->currentId, $id), $value->getType())
+                    ->addError($e->getMessage());
+
+                return new TypedReference($id, $value->getType(), $value->getInvalidBehavior());
+            }
+
+            // resolve invalid behavior
+            if (ContainerInterface::NULL_ON_INVALID_REFERENCE === $invalidBehavior) {
+                $value = null;
+            } elseif (ContainerInterface::IGNORE_ON_INVALID_REFERENCE === $invalidBehavior) {
+                if (0 < $level || $rootLevel) {
+                    throw $this->signalingException;
+                }
+                $value = null;
+            }
+        }
+
+        return $value;
+    }
+}