diff vendor/symfony/dependency-injection/Dumper/PhpDumper.php @ 0:c75dbcec494b

Initial commit from drush-created site

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/dependency-injection/Dumper/PhpDumper.php	Thu Jul 05 14:24:15 2018 +0000
@@ -0,0 +1,2092 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <[e-mail]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Dumper;
+
+use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
+use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
+use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
+use Symfony\Component\DependencyInjection\Variable;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Compiler\AnalyzeServiceReferencesPass;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\TypedReference;
+use Symfony\Component\DependencyInjection\Parameter;
+use Symfony\Component\DependencyInjection\Exception\EnvParameterException;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\DumperInterface as ProxyDumper;
+use Symfony\Component\DependencyInjection\LazyProxy\PhpDumper\NullDumper;
+use Symfony\Component\DependencyInjection\ExpressionLanguage;
+use Symfony\Component\ExpressionLanguage\Expression;
+use Symfony\Component\HttpKernel\Kernel;
+
+/**
+ * PhpDumper dumps a service container as a PHP class.
+ *
+ * @author Fabien Potencier <[e-mail]>
+ * @author Johannes M. Schmitt <[e-mail]>
+ */
+class PhpDumper extends Dumper
+{
+    /**
+     * Characters that might appear in the generated variable name as first character.
+     */
+    const FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz';
+
+    /**
+     * Characters that might appear in the generated variable name as any but the first character.
+     */
+    const NON_FIRST_CHARS = 'abcdefghijklmnopqrstuvwxyz0123456789_';
+
+    private $definitionVariables;
+    private $referenceVariables;
+    private $variableCount;
+    private $reservedVariables = array('instance', 'class');
+    private $expressionLanguage;
+    private $targetDirRegex;
+    private $targetDirMaxMatches;
+    private $docStar;
+    private $serviceIdToMethodNameMap;
+    private $usedMethodNames;
+    private $namespace;
+    private $asFiles;
+    private $hotPathTag;
+    private $inlineRequires;
+    private $inlinedRequires = array();
+    private $circularReferences = array();
+
+    /**
+     * @var ProxyDumper
+     */
+    private $proxyDumper;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function __construct(ContainerBuilder $container)
+    {
+        if (!$container->isCompiled()) {
+            @trigger_error('Dumping an uncompiled ContainerBuilder is deprecated since Symfony 3.3 and will not be supported anymore in 4.0. Compile the container beforehand.', E_USER_DEPRECATED);
+        }
+
+        parent::__construct($container);
+    }
+
+    /**
+     * Sets the dumper to be used when dumping proxies in the generated container.
+     */
+    public function setProxyDumper(ProxyDumper $proxyDumper)
+    {
+        $this->proxyDumper = $proxyDumper;
+    }
+
+    /**
+     * Dumps the service container as a PHP class.
+     *
+     * Available options:
+     *
+     *  * class:      The class name
+     *  * base_class: The base class name
+     *  * namespace:  The class namespace
+     *  * as_files:   To split the container in several files
+     *
+     * @return string|array A PHP class representing the service container or an array of PHP files if the "as_files" option is set
+     *
+     * @throws EnvParameterException When an env var exists but has not been dumped
+     */
+    public function dump(array $options = array())
+    {
+        $this->targetDirRegex = null;
+        $this->inlinedRequires = array();
+        $options = array_merge(array(
+            'class' => 'ProjectServiceContainer',
+            'base_class' => 'Container',
+            'namespace' => '',
+            'as_files' => false,
+            'debug' => true,
+            'hot_path_tag' => 'container.hot_path',
+            'inline_class_loader_parameter' => 'container.dumper.inline_class_loader',
+            'build_time' => time(),
+        ), $options);
+
+        $this->namespace = $options['namespace'];
+        $this->asFiles = $options['as_files'];
+        $this->hotPathTag = $options['hot_path_tag'];
+        $this->inlineRequires = $options['inline_class_loader_parameter'] && $this->container->hasParameter($options['inline_class_loader_parameter']) && $this->container->getParameter($options['inline_class_loader_parameter']);
+
+        if (0 !== strpos($baseClass = $options['base_class'], '\\') && 'Container' !== $baseClass) {
+            $baseClass = sprintf('%s\%s', $options['namespace'] ? '\\'.$options['namespace'] : '', $baseClass);
+            $baseClassWithNamespace = $baseClass;
+        } elseif ('Container' === $baseClass) {
+            $baseClassWithNamespace = Container::class;
+        } else {
+            $baseClassWithNamespace = $baseClass;
+        }
+
+        $this->initializeMethodNamesMap('Container' === $baseClass ? Container::class : $baseClass);
+
+        (new AnalyzeServiceReferencesPass())->process($this->container);
+        $this->circularReferences = array();
+        $checkedNodes = array();
+        foreach ($this->container->getCompiler()->getServiceReferenceGraph()->getNodes() as $id => $node) {
+            $currentPath = array($id => $id);
+            $this->analyzeCircularReferences($node->getOutEdges(), $checkedNodes, $currentPath);
+        }
+        $this->container->getCompiler()->getServiceReferenceGraph()->clear();
+
+        $this->docStar = $options['debug'] ? '*' : '';
+
+        if (!empty($options['file']) && is_dir($dir = dirname($options['file']))) {
+            // Build a regexp where the first root dirs are mandatory,
+            // but every other sub-dir is optional up to the full path in $dir
+            // Mandate at least 2 root dirs and not more that 5 optional dirs.
+
+            $dir = explode(DIRECTORY_SEPARATOR, realpath($dir));
+            $i = count($dir);
+
+            if (3 <= $i) {
+                $regex = '';
+                $lastOptionalDir = $i > 8 ? $i - 5 : 3;
+                $this->targetDirMaxMatches = $i - $lastOptionalDir;
+
+                while (--$i >= $lastOptionalDir) {
+                    $regex = sprintf('(%s%s)?', preg_quote(DIRECTORY_SEPARATOR.$dir[$i], '#'), $regex);
+                }
+
+                do {
+                    $regex = preg_quote(DIRECTORY_SEPARATOR.$dir[$i], '#').$regex;
+                } while (0 < --$i);
+
+                $this->targetDirRegex = '#'.preg_quote($dir[0], '#').$regex.'#';
+            }
+        }
+
+        $code =
+            $this->startClass($options['class'], $baseClass, $baseClassWithNamespace).
+            $this->addServices().
+            $this->addDefaultParametersMethod().
+            $this->endClass()
+        ;
+
+        if ($this->asFiles) {
+            $fileStart = <<<EOF
+<?php
+
+use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
+
+// This file has been auto-generated by the Symfony Dependency Injection Component for internal use.
+
+EOF;
+            $files = array();
+
+            if ($ids = array_keys($this->container->getRemovedIds())) {
+                sort($ids);
+                $c = "<?php\n\nreturn array(\n";
+                foreach ($ids as $id) {
+                    $c .= '    '.$this->doExport($id)." => true,\n";
+                }
+                $files['removed-ids.php'] = $c .= ");\n";
+            }
+
+            foreach ($this->generateServiceFiles() as $file => $c) {
+                $files[$file] = $fileStart.$c;
+            }
+            foreach ($this->generateProxyClasses() as $file => $c) {
+                $files[$file] = "<?php\n".$c;
+            }
+            $files[$options['class'].'.php'] = $code;
+            $hash = ucfirst(strtr(ContainerBuilder::hash($files), '._', 'xx'));
+            $code = array();
+
+            foreach ($files as $file => $c) {
+                $code["Container{$hash}/{$file}"] = $c;
+            }
+            array_pop($code);
+            $code["Container{$hash}/{$options['class']}.php"] = substr_replace($files[$options['class'].'.php'], "<?php\n\nnamespace Container{$hash};\n", 0, 6);
+            $namespaceLine = $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
+            $time = $options['build_time'];
+            $id = hash('crc32', $hash.$time);
+
+            $code[$options['class'].'.php'] = <<<EOF
+<?php
+{$namespaceLine}
+// This file has been auto-generated by the Symfony Dependency Injection Component for internal use.
+
+if (\\class_exists(\\Container{$hash}\\{$options['class']}::class, false)) {
+    // no-op
+} elseif (!include __DIR__.'/Container{$hash}/{$options['class']}.php') {
+    touch(__DIR__.'/Container{$hash}.legacy');
+
+    return;
+}
+
+if (!\\class_exists({$options['class']}::class, false)) {
+    \\class_alias(\\Container{$hash}\\{$options['class']}::class, {$options['class']}::class, false);
+}
+
+return new \\Container{$hash}\\{$options['class']}(array(
+    'container.build_hash' => '$hash',
+    'container.build_id' => '$id',
+    'container.build_time' => $time,
+), __DIR__.\\DIRECTORY_SEPARATOR.'Container{$hash}');
+
+EOF;
+        } else {
+            foreach ($this->generateProxyClasses() as $c) {
+                $code .= $c;
+            }
+        }
+
+        $this->targetDirRegex = null;
+        $this->inlinedRequires = array();
+        $this->circularReferences = array();
+
+        $unusedEnvs = array();
+        foreach ($this->container->getEnvCounters() as $env => $use) {
+            if (!$use) {
+                $unusedEnvs[] = $env;
+            }
+        }
+        if ($unusedEnvs) {
+            throw new EnvParameterException($unusedEnvs, null, 'Environment variables "%s" are never used. Please, check your container\'s configuration.');
+        }
+
+        return $code;
+    }
+
+    /**
+     * Retrieves the currently set proxy dumper or instantiates one.
+     *
+     * @return ProxyDumper
+     */
+    private function getProxyDumper()
+    {
+        if (!$this->proxyDumper) {
+            $this->proxyDumper = new NullDumper();
+        }
+
+        return $this->proxyDumper;
+    }
+
+    /**
+     * Generates Service local temp variables.
+     *
+     * @return string
+     */
+    private function addServiceLocalTempVariables($cId, Definition $definition, \SplObjectStorage $inlinedDefinitions, \SplObjectStorage $allInlinedDefinitions)
+    {
+        $allCalls = $calls = $behavior = array();
+
+        foreach ($allInlinedDefinitions as $def) {
+            $arguments = array($def->getArguments(), $def->getFactory(), $def->getProperties(), $def->getMethodCalls(), $def->getConfigurator());
+            $this->getServiceCallsFromArguments($arguments, $allCalls, false, $cId, $behavior, $allInlinedDefinitions[$def]);
+        }
+
+        $isPreInstance = isset($inlinedDefinitions[$definition]) && isset($this->circularReferences[$cId]) && !$this->getProxyDumper()->isProxyCandidate($definition) && $definition->isShared();
+        foreach ($inlinedDefinitions as $def) {
+            $this->getServiceCallsFromArguments(array($def->getArguments(), $def->getFactory()), $calls, $isPreInstance, $cId);
+            if ($def !== $definition) {
+                $arguments = array($def->getProperties(), $def->getMethodCalls(), $def->getConfigurator());
+                $this->getServiceCallsFromArguments($arguments, $calls, $isPreInstance && !$this->hasReference($cId, $arguments, true), $cId);
+            }
+        }
+        if (!isset($inlinedDefinitions[$definition])) {
+            $arguments = array($definition->getProperties(), $definition->getMethodCalls(), $definition->getConfigurator());
+            $this->getServiceCallsFromArguments($arguments, $calls, false, $cId);
+        }
+
+        $code = '';
+        foreach ($calls as $id => $callCount) {
+            if ('service_container' === $id || $id === $cId || isset($this->referenceVariables[$id])) {
+                continue;
+            }
+            if ($callCount <= 1 && $allCalls[$id] <= 1) {
+                continue;
+            }
+
+            $name = $this->getNextVariableName();
+            $this->referenceVariables[$id] = new Variable($name);
+
+            $reference = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE === $behavior[$id] ? new Reference($id, $behavior[$id]) : null;
+            $code .= sprintf("        \$%s = %s;\n", $name, $this->getServiceCall($id, $reference));
+        }
+
+        if ('' !== $code) {
+            if ($isPreInstance) {
+                $code .= <<<EOTXT
+
+        if (isset(\$this->services['$cId'])) {
+            return \$this->services['$cId'];
+        }
+
+EOTXT;
+            }
+
+            $code .= "\n";
+        }
+
+        return $code;
+    }
+
+    private function analyzeCircularReferences(array $edges, &$checkedNodes, &$currentPath)
+    {
+        foreach ($edges as $edge) {
+            $node = $edge->getDestNode();
+            $id = $node->getId();
+
+            if ($node->getValue() && ($edge->isLazy() || $edge->isWeak())) {
+                // no-op
+            } elseif (isset($currentPath[$id])) {
+                foreach (array_reverse($currentPath) as $parentId) {
+                    $this->circularReferences[$parentId][$id] = $id;
+                    $id = $parentId;
+                }
+            } elseif (!isset($checkedNodes[$id])) {
+                $checkedNodes[$id] = true;
+                $currentPath[$id] = $id;
+                $this->analyzeCircularReferences($node->getOutEdges(), $checkedNodes, $currentPath);
+                unset($currentPath[$id]);
+            }
+        }
+    }
+
+    private function collectLineage($class, array &$lineage)
+    {
+        if (isset($lineage[$class])) {
+            return;
+        }
+        if (!$r = $this->container->getReflectionClass($class, false)) {
+            return;
+        }
+        if ($this->container instanceof $class) {
+            return;
+        }
+        $file = $r->getFileName();
+        if (!$file || $this->doExport($file) === $exportedFile = $this->export($file)) {
+            return;
+        }
+
+        if ($parent = $r->getParentClass()) {
+            $this->collectLineage($parent->name, $lineage);
+        }
+
+        foreach ($r->getInterfaces() as $parent) {
+            $this->collectLineage($parent->name, $lineage);
+        }
+
+        foreach ($r->getTraits() as $parent) {
+            $this->collectLineage($parent->name, $lineage);
+        }
+
+        $lineage[$class] = substr($exportedFile, 1, -1);
+    }
+
+    private function generateProxyClasses()
+    {
+        $definitions = $this->container->getDefinitions();
+        $strip = '' === $this->docStar && method_exists('Symfony\Component\HttpKernel\Kernel', 'stripComments');
+        $proxyDumper = $this->getProxyDumper();
+        ksort($definitions);
+        foreach ($definitions as $definition) {
+            if (!$proxyDumper->isProxyCandidate($definition)) {
+                continue;
+            }
+            // register class' reflector for resource tracking
+            $this->container->getReflectionClass($definition->getClass());
+            $proxyCode = "\n".$proxyDumper->getProxyCode($definition);
+            if ($strip) {
+                $proxyCode = "<?php\n".$proxyCode;
+                $proxyCode = substr(Kernel::stripComments($proxyCode), 5);
+            }
+            yield sprintf('%s.php', explode(' ', $proxyCode, 3)[1]) => $proxyCode;
+        }
+    }
+
+    /**
+     * Generates the require_once statement for service includes.
+     *
+     * @return string
+     */
+    private function addServiceInclude($cId, Definition $definition, \SplObjectStorage $inlinedDefinitions)
+    {
+        $code = '';
+
+        if ($this->inlineRequires && !$this->isHotPath($definition)) {
+            $lineage = $calls = $behavior = array();
+            foreach ($inlinedDefinitions as $def) {
+                if (!$def->isDeprecated() && is_string($class = is_array($factory = $def->getFactory()) && is_string($factory[0]) ? $factory[0] : $def->getClass())) {
+                    $this->collectLineage($class, $lineage);
+                }
+                $arguments = array($def->getArguments(), $def->getFactory(), $def->getProperties(), $def->getMethodCalls(), $def->getConfigurator());
+                $this->getServiceCallsFromArguments($arguments, $calls, false, $cId, $behavior, $inlinedDefinitions[$def]);
+            }
+
+            foreach ($calls as $id => $callCount) {
+                if ('service_container' !== $id && $id !== $cId
+                    && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE !== $behavior[$id]
+                    && $this->container->has($id)
+                    && $this->isTrivialInstance($def = $this->container->findDefinition($id))
+                    && is_string($class = is_array($factory = $def->getFactory()) && is_string($factory[0]) ? $factory[0] : $def->getClass())
+                ) {
+                    $this->collectLineage($class, $lineage);
+                }
+            }
+
+            foreach (array_diff_key(array_flip($lineage), $this->inlinedRequires) as $file => $class) {
+                $code .= sprintf("        include_once %s;\n", $file);
+            }
+        }
+
+        foreach ($inlinedDefinitions as $def) {
+            if ($file = $def->getFile()) {
+                $code .= sprintf("        include_once %s;\n", $this->dumpValue($file));
+            }
+        }
+
+        if ('' !== $code) {
+            $code .= "\n";
+        }
+
+        return $code;
+    }
+
+    /**
+     * Generates the inline definition of a service.
+     *
+     * @return string
+     *
+     * @throws RuntimeException                  When the factory definition is incomplete
+     * @throws ServiceCircularReferenceException When a circular reference is detected
+     */
+    private function addServiceInlinedDefinitions($id, Definition $definition, \SplObjectStorage $inlinedDefinitions, &$isSimpleInstance)
+    {
+        $code = '';
+
+        foreach ($inlinedDefinitions as $def) {
+            if ($definition === $def) {
+                continue;
+            }
+            if ($inlinedDefinitions[$def] <= 1 && !$def->getMethodCalls() && !$def->getProperties() && !$def->getConfigurator() && false === strpos($this->dumpValue($def->getClass()), '$')) {
+                continue;
+            }
+            if (isset($this->definitionVariables[$def])) {
+                $name = $this->definitionVariables[$def];
+            } else {
+                $name = $this->getNextVariableName();
+                $this->definitionVariables[$def] = new Variable($name);
+            }
+
+            // a construct like:
+            // $a = new ServiceA(ServiceB $b); $b = new ServiceB(ServiceA $a);
+            // this is an indication for a wrong implementation, you can circumvent this problem
+            // by setting up your service structure like this:
+            // $b = new ServiceB();
+            // $a = new ServiceA(ServiceB $b);
+            // $b->setServiceA(ServiceA $a);
+            if (isset($inlinedDefinition[$definition]) && $this->hasReference($id, array($def->getArguments(), $def->getFactory()))) {
+                throw new ServiceCircularReferenceException($id, array($id));
+            }
+
+            $code .= $this->addNewInstance($def, '$'.$name, ' = ', $id);
+
+            if (!$this->hasReference($id, array($def->getProperties(), $def->getMethodCalls(), $def->getConfigurator()), true)) {
+                $code .= $this->addServiceProperties($def, $name);
+                $code .= $this->addServiceMethodCalls($def, $name);
+                $code .= $this->addServiceConfigurator($def, $name);
+            } else {
+                $isSimpleInstance = false;
+            }
+
+            $code .= "\n";
+        }
+
+        return $code;
+    }
+
+    /**
+     * Generates the service instance.
+     *
+     * @param string     $id
+     * @param Definition $definition
+     * @param bool       $isSimpleInstance
+     *
+     * @return string
+     *
+     * @throws InvalidArgumentException
+     * @throws RuntimeException
+     */
+    private function addServiceInstance($id, Definition $definition, $isSimpleInstance)
+    {
+        $class = $this->dumpValue($definition->getClass());
+
+        if (0 === strpos($class, "'") && false === strpos($class, '$') && !preg_match('/^\'(?:\\\{2})?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(?:\\\{2}[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*\'$/', $class)) {
+            throw new InvalidArgumentException(sprintf('"%s" is not a valid class name for the "%s" service.', $class, $id));
+        }
+
+        $isProxyCandidate = $this->getProxyDumper()->isProxyCandidate($definition);
+        $instantiation = '';
+
+        if (!$isProxyCandidate && $definition->isShared()) {
+            $instantiation = "\$this->services['$id'] = ".($isSimpleInstance ? '' : '$instance');
+        } elseif (!$isSimpleInstance) {
+            $instantiation = '$instance';
+        }
+
+        $return = '';
+        if ($isSimpleInstance) {
+            $return = 'return ';
+        } else {
+            $instantiation .= ' = ';
+        }
+
+        $code = $this->addNewInstance($definition, $return, $instantiation, $id);
+
+        if (!$isSimpleInstance) {
+            $code .= "\n";
+        }
+
+        return $code;
+    }
+
+    /**
+     * Checks if the definition is a trivial instance.
+     *
+     * @param Definition $definition
+     *
+     * @return bool
+     */
+    private function isTrivialInstance(Definition $definition)
+    {
+        if ($definition->isSynthetic() || $definition->getFile() || $definition->getMethodCalls() || $definition->getProperties() || $definition->getConfigurator()) {
+            return false;
+        }
+        if ($definition->isDeprecated() || $definition->isLazy() || $definition->getFactory() || 3 < count($definition->getArguments())) {
+            return false;
+        }
+
+        foreach ($definition->getArguments() as $arg) {
+            if (!$arg || $arg instanceof Parameter) {
+                continue;
+            }
+            if (is_array($arg) && 3 >= count($arg)) {
+                foreach ($arg as $k => $v) {
+                    if ($this->dumpValue($k) !== $this->dumpValue($k, false)) {
+                        return false;
+                    }
+                    if (!$v || $v instanceof Parameter) {
+                        continue;
+                    }
+                    if ($v instanceof Reference && $this->container->has($id = (string) $v) && $this->container->findDefinition($id)->isSynthetic()) {
+                        continue;
+                    }
+                    if (!is_scalar($v) || $this->dumpValue($v) !== $this->dumpValue($v, false)) {
+                        return false;
+                    }
+                }
+            } elseif ($arg instanceof Reference && $this->container->has($id = (string) $arg) && $this->container->findDefinition($id)->isSynthetic()) {
+                continue;
+            } elseif (!is_scalar($arg) || $this->dumpValue($arg) !== $this->dumpValue($arg, false)) {
+                return false;
+            }
+        }
+
+        if (false !== strpos($this->dumpLiteralClass($this->dumpValue($definition->getClass())), '$')) {
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * Adds method calls to a service definition.
+     *
+     * @param Definition $definition
+     * @param string     $variableName
+     *
+     * @return string
+     */
+    private function addServiceMethodCalls(Definition $definition, $variableName = 'instance')
+    {
+        $calls = '';
+        foreach ($definition->getMethodCalls() as $call) {
+            $arguments = array();
+            foreach ($call[1] as $value) {
+                $arguments[] = $this->dumpValue($value);
+            }
+
+            $calls .= $this->wrapServiceConditionals($call[1], sprintf("        \$%s->%s(%s);\n", $variableName, $call[0], implode(', ', $arguments)));
+        }
+
+        return $calls;
+    }
+
+    private function addServiceProperties(Definition $definition, $variableName = 'instance')
+    {
+        $code = '';
+        foreach ($definition->getProperties() as $name => $value) {
+            $code .= sprintf("        \$%s->%s = %s;\n", $variableName, $name, $this->dumpValue($value));
+        }
+
+        return $code;
+    }
+
+    /**
+     * Generates the inline definition setup.
+     *
+     * @return string
+     *
+     * @throws ServiceCircularReferenceException when the container contains a circular reference
+     */
+    private function addServiceInlinedDefinitionsSetup($id, Definition $definition, \SplObjectStorage $inlinedDefinitions, $isSimpleInstance)
+    {
+        $this->referenceVariables[$id] = new Variable('instance');
+
+        $code = '';
+        foreach ($inlinedDefinitions as $def) {
+            if ($definition === $def || !$this->hasReference($id, array($def->getProperties(), $def->getMethodCalls(), $def->getConfigurator()), true)) {
+                continue;
+            }
+
+            // if the instance is simple, the return statement has already been generated
+            // so, the only possible way to get there is because of a circular reference
+            if ($isSimpleInstance) {
+                throw new ServiceCircularReferenceException($id, array($id));
+            }
+
+            $name = (string) $this->definitionVariables[$def];
+            $code .= $this->addServiceProperties($def, $name);
+            $code .= $this->addServiceMethodCalls($def, $name);
+            $code .= $this->addServiceConfigurator($def, $name);
+        }
+
+        if ('' !== $code && ($definition->getProperties() || $definition->getMethodCalls() || $definition->getConfigurator())) {
+            $code .= "\n";
+        }
+
+        return $code;
+    }
+
+    /**
+     * Adds configurator definition.
+     *
+     * @param Definition $definition
+     * @param string     $variableName
+     *
+     * @return string
+     */
+    private function addServiceConfigurator(Definition $definition, $variableName = 'instance')
+    {
+        if (!$callable = $definition->getConfigurator()) {
+            return '';
+        }
+
+        if (is_array($callable)) {
+            if ($callable[0] instanceof Reference
+                || ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))) {
+                return sprintf("        %s->%s(\$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
+            }
+
+            $class = $this->dumpValue($callable[0]);
+            // If the class is a string we can optimize call_user_func away
+            if (0 === strpos($class, "'") && false === strpos($class, '$')) {
+                return sprintf("        %s::%s(\$%s);\n", $this->dumpLiteralClass($class), $callable[1], $variableName);
+            }
+
+            if (0 === strpos($class, 'new ')) {
+                return sprintf("        (%s)->%s(\$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
+            }
+
+            return sprintf("        \\call_user_func(array(%s, '%s'), \$%s);\n", $this->dumpValue($callable[0]), $callable[1], $variableName);
+        }
+
+        return sprintf("        %s(\$%s);\n", $callable, $variableName);
+    }
+
+    /**
+     * Adds a service.
+     *
+     * @param string     $id
+     * @param Definition $definition
+     * @param string     &$file
+     *
+     * @return string
+     */
+    private function addService($id, Definition $definition, &$file = null)
+    {
+        $this->definitionVariables = new \SplObjectStorage();
+        $this->referenceVariables = array();
+        $this->variableCount = 0;
+
+        $return = array();
+
+        if ($class = $definition->getClass()) {
+            $class = $this->container->resolveEnvPlaceholders($class);
+            $return[] = sprintf(0 === strpos($class, '%') ? '@return object A %1$s instance' : '@return \%s', ltrim($class, '\\'));
+        } elseif ($definition->getFactory()) {
+            $factory = $definition->getFactory();
+            if (is_string($factory)) {
+                $return[] = sprintf('@return object An instance returned by %s()', $factory);
+            } elseif (is_array($factory) && (is_string($factory[0]) || $factory[0] instanceof Definition || $factory[0] instanceof Reference)) {
+                if (is_string($factory[0]) || $factory[0] instanceof Reference) {
+                    $return[] = sprintf('@return object An instance returned by %s::%s()', (string) $factory[0], $factory[1]);
+                } elseif ($factory[0] instanceof Definition) {
+                    $return[] = sprintf('@return object An instance returned by %s::%s()', $factory[0]->getClass(), $factory[1]);
+                }
+            }
+        }
+
+        if ($definition->isDeprecated()) {
+            if ($return && 0 === strpos($return[count($return) - 1], '@return')) {
+                $return[] = '';
+            }
+
+            $return[] = sprintf('@deprecated %s', $definition->getDeprecationMessage($id));
+        }
+
+        $return = str_replace("\n     * \n", "\n     *\n", implode("\n     * ", $return));
+        $return = $this->container->resolveEnvPlaceholders($return);
+
+        $shared = $definition->isShared() ? ' shared' : '';
+        $public = $definition->isPublic() ? 'public' : 'private';
+        $autowired = $definition->isAutowired() ? ' autowired' : '';
+
+        if ($definition->isLazy()) {
+            $lazyInitialization = '$lazyLoad = true';
+        } else {
+            $lazyInitialization = '';
+        }
+
+        $asFile = $this->asFiles && $definition->isShared() && !$this->isHotPath($definition);
+        $methodName = $this->generateMethodName($id);
+        if ($asFile) {
+            $file = $methodName.'.php';
+            $code = "        // Returns the $public '$id'$shared$autowired service.\n\n";
+        } else {
+            $code = <<<EOF
+
+    /*{$this->docStar}
+     * Gets the $public '$id'$shared$autowired service.
+     *
+     * $return
+     */
+    protected function {$methodName}($lazyInitialization)
+    {
+
+EOF;
+        }
+
+        if ($this->getProxyDumper()->isProxyCandidate($definition)) {
+            $factoryCode = $asFile ? "\$this->load('%s.php', false)" : '$this->%s(false)';
+            $code .= $this->getProxyDumper()->getProxyFactoryCode($definition, $id, sprintf($factoryCode, $methodName));
+        }
+
+        if ($definition->isDeprecated()) {
+            $code .= sprintf("        @trigger_error(%s, E_USER_DEPRECATED);\n\n", $this->export($definition->getDeprecationMessage($id)));
+        }
+
+        $inlinedDefinitions = $this->getDefinitionsFromArguments(array($definition));
+        $constructorDefinitions = $this->getDefinitionsFromArguments(array($definition->getArguments(), $definition->getFactory()));
+        $otherDefinitions = new \SplObjectStorage();
+
+        foreach ($inlinedDefinitions as $def) {
+            if ($def === $definition || isset($constructorDefinitions[$def])) {
+                $constructorDefinitions[$def] = $inlinedDefinitions[$def];
+            } else {
+                $otherDefinitions[$def] = $inlinedDefinitions[$def];
+            }
+        }
+
+        $isSimpleInstance = !$definition->getProperties() && !$definition->getMethodCalls() && !$definition->getConfigurator();
+
+        $code .=
+            $this->addServiceInclude($id, $definition, $inlinedDefinitions).
+            $this->addServiceLocalTempVariables($id, $definition, $constructorDefinitions, $inlinedDefinitions).
+            $this->addServiceInlinedDefinitions($id, $definition, $constructorDefinitions, $isSimpleInstance).
+            $this->addServiceInstance($id, $definition, $isSimpleInstance).
+            $this->addServiceLocalTempVariables($id, $definition, $otherDefinitions, $inlinedDefinitions).
+            $this->addServiceInlinedDefinitions($id, $definition, $otherDefinitions, $isSimpleInstance).
+            $this->addServiceInlinedDefinitionsSetup($id, $definition, $inlinedDefinitions, $isSimpleInstance).
+            $this->addServiceProperties($definition).
+            $this->addServiceMethodCalls($definition).
+            $this->addServiceConfigurator($definition).
+            (!$isSimpleInstance ? "\n        return \$instance;\n" : '')
+        ;
+
+        if ($asFile) {
+            $code = implode("\n", array_map(function ($line) { return $line ? substr($line, 8) : $line; }, explode("\n", $code)));
+        } else {
+            $code .= "    }\n";
+        }
+
+        $this->definitionVariables = null;
+        $this->referenceVariables = null;
+
+        return $code;
+    }
+
+    /**
+     * Adds multiple services.
+     *
+     * @return string
+     */
+    private function addServices()
+    {
+        $publicServices = $privateServices = '';
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if ($definition->isSynthetic() || ($this->asFiles && $definition->isShared() && !$this->isHotPath($definition))) {
+                continue;
+            }
+            if ($definition->isPublic()) {
+                $publicServices .= $this->addService($id, $definition);
+            } else {
+                $privateServices .= $this->addService($id, $definition);
+            }
+        }
+
+        return $publicServices.$privateServices;
+    }
+
+    private function generateServiceFiles()
+    {
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if (!$definition->isSynthetic() && $definition->isShared() && !$this->isHotPath($definition)) {
+                $code = $this->addService($id, $definition, $file);
+                yield $file => $code;
+            }
+        }
+    }
+
+    private function addNewInstance(Definition $definition, $return, $instantiation, $id)
+    {
+        $class = $this->dumpValue($definition->getClass());
+        $return = '        '.$return.$instantiation;
+
+        $arguments = array();
+        foreach ($definition->getArguments() as $value) {
+            $arguments[] = $this->dumpValue($value);
+        }
+
+        if (null !== $definition->getFactory()) {
+            $callable = $definition->getFactory();
+            if (is_array($callable)) {
+                if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $callable[1])) {
+                    throw new RuntimeException(sprintf('Cannot dump definition because of invalid factory method (%s)', $callable[1] ?: 'n/a'));
+                }
+
+                if ($callable[0] instanceof Reference
+                    || ($callable[0] instanceof Definition && $this->definitionVariables->contains($callable[0]))) {
+                    return $return.sprintf("%s->%s(%s);\n", $this->dumpValue($callable[0]), $callable[1], $arguments ? implode(', ', $arguments) : '');
+                }
+
+                $class = $this->dumpValue($callable[0]);
+                // If the class is a string we can optimize call_user_func away
+                if (0 === strpos($class, "'") && false === strpos($class, '$')) {
+                    if ("''" === $class) {
+                        throw new RuntimeException(sprintf('Cannot dump definition: The "%s" service is defined to be created by a factory but is missing the service reference, did you forget to define the factory service id or class?', $id));
+                    }
+
+                    return $return.sprintf("%s::%s(%s);\n", $this->dumpLiteralClass($class), $callable[1], $arguments ? implode(', ', $arguments) : '');
+                }
+
+                if (0 === strpos($class, 'new ')) {
+                    return $return.sprintf("(%s)->%s(%s);\n", $class, $callable[1], $arguments ? implode(', ', $arguments) : '');
+                }
+
+                return $return.sprintf("\\call_user_func(array(%s, '%s')%s);\n", $class, $callable[1], $arguments ? ', '.implode(', ', $arguments) : '');
+            }
+
+            return $return.sprintf("%s(%s);\n", $this->dumpLiteralClass($this->dumpValue($callable)), $arguments ? implode(', ', $arguments) : '');
+        }
+
+        if (false !== strpos($class, '$')) {
+            return sprintf("        \$class = %s;\n\n%snew \$class(%s);\n", $class, $return, implode(', ', $arguments));
+        }
+
+        return $return.sprintf("new %s(%s);\n", $this->dumpLiteralClass($class), implode(', ', $arguments));
+    }
+
+    /**
+     * Adds the class headers.
+     *
+     * @param string $class                  Class name
+     * @param string $baseClass              The name of the base class
+     * @param string $baseClassWithNamespace Fully qualified base class name
+     *
+     * @return string
+     */
+    private function startClass($class, $baseClass, $baseClassWithNamespace)
+    {
+        $bagClass = $this->container->isCompiled() ? 'use Symfony\Component\DependencyInjection\ParameterBag\FrozenParameterBag;' : 'use Symfony\Component\DependencyInjection\ParameterBag\\ParameterBag;';
+        $namespaceLine = !$this->asFiles && $this->namespace ? "\nnamespace {$this->namespace};\n" : '';
+
+        $code = <<<EOF
+<?php
+$namespaceLine
+use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Exception\LogicException;
+use Symfony\Component\DependencyInjection\Exception\RuntimeException;
+$bagClass
+
+/*{$this->docStar}
+ * This class has been auto-generated
+ * by the Symfony Dependency Injection Component.
+ *
+ * @final since Symfony 3.3
+ */
+class $class extends $baseClass
+{
+    private \$parameters;
+    private \$targetDirs = array();
+
+    public function __construct()
+    {
+
+EOF;
+        if (null !== $this->targetDirRegex) {
+            $dir = $this->asFiles ? '$this->targetDirs[0] = \\dirname($containerDir)' : '__DIR__';
+            $code .= <<<EOF
+        \$dir = {$dir};
+        for (\$i = 1; \$i <= {$this->targetDirMaxMatches}; ++\$i) {
+            \$this->targetDirs[\$i] = \$dir = \\dirname(\$dir);
+        }
+
+EOF;
+        }
+        if ($this->asFiles) {
+            $code = str_replace('$parameters', "\$buildParameters;\n    private \$containerDir;\n    private \$parameters", $code);
+            $code = str_replace('__construct()', '__construct(array $buildParameters = array(), $containerDir = __DIR__)', $code);
+            $code .= "        \$this->buildParameters = \$buildParameters;\n";
+            $code .= "        \$this->containerDir = \$containerDir;\n";
+        }
+
+        if ($this->container->isCompiled()) {
+            if (Container::class !== $baseClassWithNamespace) {
+                $r = $this->container->getReflectionClass($baseClassWithNamespace, false);
+                if (null !== $r
+                    && (null !== $constructor = $r->getConstructor())
+                    && 0 === $constructor->getNumberOfRequiredParameters()
+                    && Container::class !== $constructor->getDeclaringClass()->name
+                ) {
+                    $code .= "        parent::__construct();\n";
+                    $code .= "        \$this->parameterBag = null;\n\n";
+                }
+            }
+
+            if ($this->container->getParameterBag()->all()) {
+                $code .= "        \$this->parameters = \$this->getDefaultParameters();\n\n";
+            }
+
+            $code .= "        \$this->services = array();\n";
+        } else {
+            $arguments = $this->container->getParameterBag()->all() ? 'new ParameterBag($this->getDefaultParameters())' : null;
+            $code .= "        parent::__construct($arguments);\n";
+        }
+
+        $code .= $this->addNormalizedIds();
+        $code .= $this->addSyntheticIds();
+        $code .= $this->addMethodMap();
+        $code .= $this->asFiles ? $this->addFileMap() : '';
+        $code .= $this->addPrivateServices();
+        $code .= $this->addAliases();
+        $code .= $this->addInlineRequires();
+        $code .= <<<'EOF'
+    }
+
+EOF;
+        $code .= $this->addRemovedIds();
+
+        if ($this->container->isCompiled()) {
+            $code .= <<<EOF
+
+    public function compile()
+    {
+        throw new LogicException('You cannot compile a dumped container that was already compiled.');
+    }
+
+    public function isCompiled()
+    {
+        return true;
+    }
+
+    public function isFrozen()
+    {
+        @trigger_error(sprintf('The %s() method is deprecated since Symfony 3.3 and will be removed in 4.0. Use the isCompiled() method instead.', __METHOD__), E_USER_DEPRECATED);
+
+        return true;
+    }
+
+EOF;
+        }
+
+        if ($this->asFiles) {
+            $code .= <<<EOF
+
+    protected function load(\$file, \$lazyLoad = true)
+    {
+        return require \$this->containerDir.\\DIRECTORY_SEPARATOR.\$file;
+    }
+
+EOF;
+        }
+
+        $proxyDumper = $this->getProxyDumper();
+        foreach ($this->container->getDefinitions() as $definition) {
+            if (!$proxyDumper->isProxyCandidate($definition)) {
+                continue;
+            }
+            if ($this->asFiles) {
+                $proxyLoader = '$this->load("{$class}.php")';
+            } elseif ($this->namespace) {
+                $proxyLoader = 'class_alias("'.$this->namespace.'\\\\{$class}", $class, false)';
+            } else {
+                $proxyLoader = '';
+            }
+            if ($proxyLoader) {
+                $proxyLoader = "class_exists(\$class, false) || {$proxyLoader};\n\n        ";
+            }
+            $code .= <<<EOF
+
+    protected function createProxy(\$class, \Closure \$factory)
+    {
+        {$proxyLoader}return \$factory();
+    }
+
+EOF;
+            break;
+        }
+
+        return $code;
+    }
+
+    /**
+     * Adds the normalizedIds property definition.
+     *
+     * @return string
+     */
+    private function addNormalizedIds()
+    {
+        $code = '';
+        $normalizedIds = $this->container->getNormalizedIds();
+        ksort($normalizedIds);
+        foreach ($normalizedIds as $id => $normalizedId) {
+            if ($this->container->has($normalizedId)) {
+                $code .= '            '.$this->doExport($id).' => '.$this->doExport($normalizedId).",\n";
+            }
+        }
+
+        return $code ? "        \$this->normalizedIds = array(\n".$code."        );\n" : '';
+    }
+
+    /**
+     * Adds the syntheticIds definition.
+     *
+     * @return string
+     */
+    private function addSyntheticIds()
+    {
+        $code = '';
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if ($definition->isSynthetic() && 'service_container' !== $id) {
+                $code .= '            '.$this->doExport($id)." => true,\n";
+            }
+        }
+
+        return $code ? "        \$this->syntheticIds = array(\n{$code}        );\n" : '';
+    }
+
+    /**
+     * Adds the removedIds definition.
+     *
+     * @return string
+     */
+    private function addRemovedIds()
+    {
+        if (!$ids = $this->container->getRemovedIds()) {
+            return '';
+        }
+        if ($this->asFiles) {
+            $code = "require \$this->containerDir.\\DIRECTORY_SEPARATOR.'removed-ids.php'";
+        } else {
+            $code = '';
+            $ids = array_keys($ids);
+            sort($ids);
+            foreach ($ids as $id) {
+                $code .= '            '.$this->doExport($id)." => true,\n";
+            }
+
+            $code = "array(\n{$code}        )";
+        }
+
+        return <<<EOF
+
+    public function getRemovedIds()
+    {
+        return {$code};
+    }
+
+EOF;
+    }
+
+    /**
+     * Adds the methodMap property definition.
+     *
+     * @return string
+     */
+    private function addMethodMap()
+    {
+        $code = '';
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if (!$definition->isSynthetic() && (!$this->asFiles || !$definition->isShared() || $this->isHotPath($definition))) {
+                $code .= '            '.$this->doExport($id).' => '.$this->doExport($this->generateMethodName($id)).",\n";
+            }
+        }
+
+        return $code ? "        \$this->methodMap = array(\n{$code}        );\n" : '';
+    }
+
+    /**
+     * Adds the fileMap property definition.
+     *
+     * @return string
+     */
+    private function addFileMap()
+    {
+        $code = '';
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if (!$definition->isSynthetic() && $definition->isShared() && !$this->isHotPath($definition)) {
+                $code .= sprintf("            %s => '%s.php',\n", $this->doExport($id), $this->generateMethodName($id));
+            }
+        }
+
+        return $code ? "        \$this->fileMap = array(\n{$code}        );\n" : '';
+    }
+
+    /**
+     * Adds the privates property definition.
+     *
+     * @return string
+     */
+    private function addPrivateServices()
+    {
+        $code = '';
+
+        $aliases = $this->container->getAliases();
+        ksort($aliases);
+        foreach ($aliases as $id => $alias) {
+            if ($alias->isPrivate()) {
+                $code .= '            '.$this->doExport($id)." => true,\n";
+            }
+        }
+
+        $definitions = $this->container->getDefinitions();
+        ksort($definitions);
+        foreach ($definitions as $id => $definition) {
+            if (!$definition->isPublic()) {
+                $code .= '            '.$this->doExport($id)." => true,\n";
+            }
+        }
+
+        if (empty($code)) {
+            return '';
+        }
+
+        $out = "        \$this->privates = array(\n";
+        $out .= $code;
+        $out .= "        );\n";
+
+        return $out;
+    }
+
+    /**
+     * Adds the aliases property definition.
+     *
+     * @return string
+     */
+    private function addAliases()
+    {
+        if (!$aliases = $this->container->getAliases()) {
+            return $this->container->isCompiled() ? "\n        \$this->aliases = array();\n" : '';
+        }
+
+        $code = "        \$this->aliases = array(\n";
+        ksort($aliases);
+        foreach ($aliases as $alias => $id) {
+            $id = $this->container->normalizeId($id);
+            while (isset($aliases[$id])) {
+                $id = $this->container->normalizeId($aliases[$id]);
+            }
+            $code .= '            '.$this->doExport($alias).' => '.$this->doExport($id).",\n";
+        }
+
+        return $code."        );\n";
+    }
+
+    private function addInlineRequires()
+    {
+        if (!$this->hotPathTag || !$this->inlineRequires) {
+            return '';
+        }
+
+        $lineage = array();
+
+        foreach ($this->container->findTaggedServiceIds($this->hotPathTag) as $id => $tags) {
+            $definition = $this->container->getDefinition($id);
+            $inlinedDefinitions = $this->getDefinitionsFromArguments(array($definition));
+
+            foreach ($inlinedDefinitions as $def) {
+                if (is_string($class = is_array($factory = $def->getFactory()) && is_string($factory[0]) ? $factory[0] : $def->getClass())) {
+                    $this->collectLineage($class, $lineage);
+                }
+            }
+        }
+
+        $code = '';
+
+        foreach ($lineage as $file) {
+            if (!isset($this->inlinedRequires[$file])) {
+                $this->inlinedRequires[$file] = true;
+                $code .= sprintf("\n            include_once %s;", $file);
+            }
+        }
+
+        return $code ? sprintf("\n        \$this->privates['service_container'] = function () {%s\n        };\n", $code) : '';
+    }
+
+    /**
+     * Adds default parameters method.
+     *
+     * @return string
+     */
+    private function addDefaultParametersMethod()
+    {
+        if (!$this->container->getParameterBag()->all()) {
+            return '';
+        }
+
+        $php = array();
+        $dynamicPhp = array();
+        $normalizedParams = array();
+
+        foreach ($this->container->getParameterBag()->all() as $key => $value) {
+            if ($key !== $resolvedKey = $this->container->resolveEnvPlaceholders($key)) {
+                throw new InvalidArgumentException(sprintf('Parameter name cannot use env parameters: %s.', $resolvedKey));
+            }
+            if ($key !== $lcKey = strtolower($key)) {
+                $normalizedParams[] = sprintf('        %s => %s,', $this->export($lcKey), $this->export($key));
+            }
+            $export = $this->exportParameters(array($value));
+            $export = explode('0 => ', substr(rtrim($export, " )\n"), 7, -1), 2);
+
+            if (preg_match("/\\\$this->(?:getEnv\('(?:\w++:)*+\w++'\)|targetDirs\[\d++\])/", $export[1])) {
+                $dynamicPhp[$key] = sprintf('%scase %s: $value = %s; break;', $export[0], $this->export($key), $export[1]);
+            } else {
+                $php[] = sprintf('%s%s => %s,', $export[0], $this->export($key), $export[1]);
+            }
+        }
+        $parameters = sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', 8));
+
+        $code = '';
+        if ($this->container->isCompiled()) {
+            $code .= <<<'EOF'
+
+    public function getParameter($name)
+    {
+        $name = (string) $name;
+        if (isset($this->buildParameters[$name])) {
+            return $this->buildParameters[$name];
+        }
+        if (!(isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters))) {
+            $name = $this->normalizeParameterName($name);
+
+            if (!(isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters))) {
+                throw new InvalidArgumentException(sprintf('The parameter "%s" must be defined.', $name));
+            }
+        }
+        if (isset($this->loadedDynamicParameters[$name])) {
+            return $this->loadedDynamicParameters[$name] ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
+        }
+
+        return $this->parameters[$name];
+    }
+
+    public function hasParameter($name)
+    {
+        $name = (string) $name;
+        if (isset($this->buildParameters[$name])) {
+            return true;
+        }
+        $name = $this->normalizeParameterName($name);
+
+        return isset($this->parameters[$name]) || isset($this->loadedDynamicParameters[$name]) || array_key_exists($name, $this->parameters);
+    }
+
+    public function setParameter($name, $value)
+    {
+        throw new LogicException('Impossible to call set() on a frozen ParameterBag.');
+    }
+
+    public function getParameterBag()
+    {
+        if (null === $this->parameterBag) {
+            $parameters = $this->parameters;
+            foreach ($this->loadedDynamicParameters as $name => $loaded) {
+                $parameters[$name] = $loaded ? $this->dynamicParameters[$name] : $this->getDynamicParameter($name);
+            }
+            foreach ($this->buildParameters as $name => $value) {
+                $parameters[$name] = $value;
+            }
+            $this->parameterBag = new FrozenParameterBag($parameters);
+        }
+
+        return $this->parameterBag;
+    }
+
+EOF;
+            if (!$this->asFiles) {
+                $code = preg_replace('/^.*buildParameters.*\n.*\n.*\n/m', '', $code);
+            }
+
+            if ($dynamicPhp) {
+                $loadedDynamicParameters = $this->exportParameters(array_combine(array_keys($dynamicPhp), array_fill(0, count($dynamicPhp), false)), '', 8);
+                $getDynamicParameter = <<<'EOF'
+        switch ($name) {
+%s
+            default: throw new InvalidArgumentException(sprintf('The dynamic parameter "%%s" must be defined.', $name));
+        }
+        $this->loadedDynamicParameters[$name] = true;
+
+        return $this->dynamicParameters[$name] = $value;
+EOF;
+                $getDynamicParameter = sprintf($getDynamicParameter, implode("\n", $dynamicPhp));
+            } else {
+                $loadedDynamicParameters = 'array()';
+                $getDynamicParameter = str_repeat(' ', 8).'throw new InvalidArgumentException(sprintf(\'The dynamic parameter "%s" must be defined.\', $name));';
+            }
+
+            $code .= <<<EOF
+
+    private \$loadedDynamicParameters = {$loadedDynamicParameters};
+    private \$dynamicParameters = array();
+
+    /*{$this->docStar}
+     * Computes a dynamic parameter.
+     *
+     * @param string The name of the dynamic parameter to load
+     *
+     * @return mixed The value of the dynamic parameter
+     *
+     * @throws InvalidArgumentException When the dynamic parameter does not exist
+     */
+    private function getDynamicParameter(\$name)
+    {
+{$getDynamicParameter}
+    }
+
+
+EOF;
+
+            $code .= '    private $normalizedParameterNames = '.($normalizedParams ? sprintf("array(\n%s\n    );", implode("\n", $normalizedParams)) : 'array();')."\n";
+            $code .= <<<'EOF'
+
+    private function normalizeParameterName($name)
+    {
+        if (isset($this->normalizedParameterNames[$normalizedName = strtolower($name)]) || isset($this->parameters[$normalizedName]) || array_key_exists($normalizedName, $this->parameters)) {
+            $normalizedName = isset($this->normalizedParameterNames[$normalizedName]) ? $this->normalizedParameterNames[$normalizedName] : $normalizedName;
+            if ((string) $name !== $normalizedName) {
+                @trigger_error(sprintf('Parameter names will be made case sensitive in Symfony 4.0. Using "%s" instead of "%s" is deprecated since Symfony 3.4.', $name, $normalizedName), E_USER_DEPRECATED);
+            }
+        } else {
+            $normalizedName = $this->normalizedParameterNames[$normalizedName] = (string) $name;
+        }
+
+        return $normalizedName;
+    }
+
+EOF;
+        } elseif ($dynamicPhp) {
+            throw new RuntimeException('You cannot dump a not-frozen container with dynamic parameters.');
+        }
+
+        $code .= <<<EOF
+
+    /*{$this->docStar}
+     * Gets the default parameters.
+     *
+     * @return array An array of the default parameters
+     */
+    protected function getDefaultParameters()
+    {
+        return $parameters;
+    }
+
+EOF;
+
+        return $code;
+    }
+
+    /**
+     * Exports parameters.
+     *
+     * @param array  $parameters
+     * @param string $path
+     * @param int    $indent
+     *
+     * @return string
+     *
+     * @throws InvalidArgumentException
+     */
+    private function exportParameters(array $parameters, $path = '', $indent = 12)
+    {
+        $php = array();
+        foreach ($parameters as $key => $value) {
+            if (is_array($value)) {
+                $value = $this->exportParameters($value, $path.'/'.$key, $indent + 4);
+            } elseif ($value instanceof ArgumentInterface) {
+                throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain special arguments. "%s" found in "%s".', get_class($value), $path.'/'.$key));
+            } elseif ($value instanceof Variable) {
+                throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain variable references. Variable "%s" found in "%s".', $value, $path.'/'.$key));
+            } elseif ($value instanceof Definition) {
+                throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain service definitions. Definition for "%s" found in "%s".', $value->getClass(), $path.'/'.$key));
+            } elseif ($value instanceof Reference) {
+                throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain references to other services (reference to service "%s" found in "%s").', $value, $path.'/'.$key));
+            } elseif ($value instanceof Expression) {
+                throw new InvalidArgumentException(sprintf('You cannot dump a container with parameters that contain expressions. Expression "%s" found in "%s".', $value, $path.'/'.$key));
+            } else {
+                $value = $this->export($value);
+            }
+
+            $php[] = sprintf('%s%s => %s,', str_repeat(' ', $indent), $this->export($key), $value);
+        }
+
+        return sprintf("array(\n%s\n%s)", implode("\n", $php), str_repeat(' ', $indent - 4));
+    }
+
+    /**
+     * Ends the class definition.
+     *
+     * @return string
+     */
+    private function endClass()
+    {
+        return <<<'EOF'
+}
+
+EOF;
+    }
+
+    /**
+     * Wraps the service conditionals.
+     *
+     * @param string $value
+     * @param string $code
+     *
+     * @return string
+     */
+    private function wrapServiceConditionals($value, $code)
+    {
+        if (!$condition = $this->getServiceConditionals($value)) {
+            return $code;
+        }
+
+        // re-indent the wrapped code
+        $code = implode("\n", array_map(function ($line) { return $line ? '    '.$line : $line; }, explode("\n", $code)));
+
+        return sprintf("        if (%s) {\n%s        }\n", $condition, $code);
+    }
+
+    /**
+     * Get the conditions to execute for conditional services.
+     *
+     * @param string $value
+     *
+     * @return null|string
+     */
+    private function getServiceConditionals($value)
+    {
+        $conditions = array();
+        foreach (ContainerBuilder::getInitializedConditionals($value) as $service) {
+            if (!$this->container->hasDefinition($service)) {
+                return 'false';
+            }
+            $conditions[] = sprintf("isset(\$this->services['%s'])", $service);
+        }
+        foreach (ContainerBuilder::getServiceConditionals($value) as $service) {
+            if ($this->container->hasDefinition($service) && !$this->container->getDefinition($service)->isPublic()) {
+                continue;
+            }
+
+            $conditions[] = sprintf("\$this->has('%s')", $service);
+        }
+
+        if (!$conditions) {
+            return '';
+        }
+
+        return implode(' && ', $conditions);
+    }
+
+    /**
+     * Builds service calls from arguments.
+     */
+    private function getServiceCallsFromArguments(array $arguments, array &$calls, $isPreInstance, $callerId, array &$behavior = array(), $step = 1)
+    {
+        foreach ($arguments as $argument) {
+            if (is_array($argument)) {
+                $this->getServiceCallsFromArguments($argument, $calls, $isPreInstance, $callerId, $behavior, $step);
+            } elseif ($argument instanceof Reference) {
+                $id = $this->container->normalizeId($argument);
+
+                if (!isset($calls[$id])) {
+                    $calls[$id] = (int) ($isPreInstance && isset($this->circularReferences[$callerId][$id]));
+                }
+                if (!isset($behavior[$id])) {
+                    $behavior[$id] = $argument->getInvalidBehavior();
+                } else {
+                    $behavior[$id] = min($behavior[$id], $argument->getInvalidBehavior());
+                }
+
+                $calls[$id] += $step;
+            }
+        }
+    }
+
+    private function getDefinitionsFromArguments(array $arguments, \SplObjectStorage $definitions = null)
+    {
+        if (null === $definitions) {
+            $definitions = new \SplObjectStorage();
+        }
+
+        foreach ($arguments as $argument) {
+            if (is_array($argument)) {
+                $this->getDefinitionsFromArguments($argument, $definitions);
+            } elseif (!$argument instanceof Definition) {
+                // no-op
+            } elseif (isset($definitions[$argument])) {
+                $definitions[$argument] = 1 + $definitions[$argument];
+            } else {
+                $definitions[$argument] = 1;
+                $this->getDefinitionsFromArguments($argument->getArguments(), $definitions);
+                $this->getDefinitionsFromArguments(array($argument->getFactory()), $definitions);
+                $this->getDefinitionsFromArguments($argument->getProperties(), $definitions);
+                $this->getDefinitionsFromArguments($argument->getMethodCalls(), $definitions);
+                $this->getDefinitionsFromArguments(array($argument->getConfigurator()), $definitions);
+                // move current definition last in the list
+                $nbOccurences = $definitions[$argument];
+                unset($definitions[$argument]);
+                $definitions[$argument] = $nbOccurences;
+            }
+        }
+
+        return $definitions;
+    }
+
+    /**
+     * Checks if a service id has a reference.
+     *
+     * @param string $id
+     * @param array  $arguments
+     * @param bool   $deep
+     * @param array  $visited
+     *
+     * @return bool
+     */
+    private function hasReference($id, array $arguments, $deep = false, array &$visited = array())
+    {
+        if (!isset($this->circularReferences[$id])) {
+            return false;
+        }
+
+        foreach ($arguments as $argument) {
+            if (is_array($argument)) {
+                if ($this->hasReference($id, $argument, $deep, $visited)) {
+                    return true;
+                }
+
+                continue;
+            } elseif ($argument instanceof Reference) {
+                $argumentId = $this->container->normalizeId($argument);
+                if ($id === $argumentId) {
+                    return true;
+                }
+
+                if (!$deep || isset($visited[$argumentId]) || !isset($this->circularReferences[$id][$argumentId])) {
+                    continue;
+                }
+
+                $visited[$argumentId] = true;
+
+                $service = $this->container->getDefinition($argumentId);
+            } elseif ($argument instanceof Definition) {
+                $service = $argument;
+            } else {
+                continue;
+            }
+
+            // if the proxy manager is enabled, disable searching for references in lazy services,
+            // as these services will be instantiated lazily and don't have direct related references.
+            if ($service->isLazy() && !$this->getProxyDumper() instanceof NullDumper) {
+                continue;
+            }
+
+            if ($this->hasReference($id, array($service->getArguments(), $service->getFactory(), $service->getProperties(), $service->getMethodCalls(), $service->getConfigurator()), $deep, $visited)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Dumps values.
+     *
+     * @param mixed $value
+     * @param bool  $interpolate
+     *
+     * @return string
+     *
+     * @throws RuntimeException
+     */
+    private function dumpValue($value, $interpolate = true)
+    {
+        if (is_array($value)) {
+            if ($value && $interpolate && false !== $param = array_search($value, $this->container->getParameterBag()->all(), true)) {
+                return $this->dumpValue("%$param%");
+            }
+            $code = array();
+            foreach ($value as $k => $v) {
+                $code[] = sprintf('%s => %s', $this->dumpValue($k, $interpolate), $this->dumpValue($v, $interpolate));
+            }
+
+            return sprintf('array(%s)', implode(', ', $code));
+        } elseif ($value instanceof ArgumentInterface) {
+            $scope = array($this->definitionVariables, $this->referenceVariables, $this->variableCount);
+            $this->definitionVariables = $this->referenceVariables = null;
+
+            try {
+                if ($value instanceof ServiceClosureArgument) {
+                    $value = $value->getValues()[0];
+                    $code = $this->dumpValue($value, $interpolate);
+
+                    if ($value instanceof TypedReference) {
+                        $code = sprintf('$f = function (\\%s $v%s) { return $v; }; return $f(%s);', $value->getType(), ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $value->getInvalidBehavior() ? ' = null' : '', $code);
+                    } else {
+                        $code = sprintf('return %s;', $code);
+                    }
+
+                    return sprintf("function () {\n            %s\n        }", $code);
+                }
+
+                if ($value instanceof IteratorArgument) {
+                    $operands = array(0);
+                    $code = array();
+                    $code[] = 'new RewindableGenerator(function () {';
+
+                    if (!$values = $value->getValues()) {
+                        $code[] = '            return new \EmptyIterator();';
+                    } else {
+                        $countCode = array();
+                        $countCode[] = 'function () {';
+
+                        foreach ($values as $k => $v) {
+                            ($c = $this->getServiceConditionals($v)) ? $operands[] = "(int) ($c)" : ++$operands[0];
+                            $v = $this->wrapServiceConditionals($v, sprintf("        yield %s => %s;\n", $this->dumpValue($k, $interpolate), $this->dumpValue($v, $interpolate)));
+                            foreach (explode("\n", $v) as $v) {
+                                if ($v) {
+                                    $code[] = '    '.$v;
+                                }
+                            }
+                        }
+
+                        $countCode[] = sprintf('            return %s;', implode(' + ', $operands));
+                        $countCode[] = '        }';
+                    }
+
+                    $code[] = sprintf('        }, %s)', count($operands) > 1 ? implode("\n", $countCode) : $operands[0]);
+
+                    return implode("\n", $code);
+                }
+            } finally {
+                list($this->definitionVariables, $this->referenceVariables, $this->variableCount) = $scope;
+            }
+        } elseif ($value instanceof Definition) {
+            if (null !== $this->definitionVariables && $this->definitionVariables->contains($value)) {
+                return $this->dumpValue($this->definitionVariables[$value], $interpolate);
+            }
+            if ($value->getMethodCalls()) {
+                throw new RuntimeException('Cannot dump definitions which have method calls.');
+            }
+            if ($value->getProperties()) {
+                throw new RuntimeException('Cannot dump definitions which have properties.');
+            }
+            if (null !== $value->getConfigurator()) {
+                throw new RuntimeException('Cannot dump definitions which have a configurator.');
+            }
+
+            $arguments = array();
+            foreach ($value->getArguments() as $argument) {
+                $arguments[] = $this->dumpValue($argument);
+            }
+
+            if (null !== $value->getFactory()) {
+                $factory = $value->getFactory();
+
+                if (is_string($factory)) {
+                    return sprintf('%s(%s)', $this->dumpLiteralClass($this->dumpValue($factory)), implode(', ', $arguments));
+                }
+
+                if (is_array($factory)) {
+                    if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $factory[1])) {
+                        throw new RuntimeException(sprintf('Cannot dump definition because of invalid factory method (%s)', $factory[1] ?: 'n/a'));
+                    }
+
+                    $class = $this->dumpValue($factory[0]);
+                    if (is_string($factory[0])) {
+                        return sprintf('%s::%s(%s)', $this->dumpLiteralClass($class), $factory[1], implode(', ', $arguments));
+                    }
+
+                    if ($factory[0] instanceof Definition) {
+                        if (0 === strpos($class, 'new ')) {
+                            return sprintf('(%s)->%s(%s)', $class, $factory[1], implode(', ', $arguments));
+                        }
+
+                        return sprintf("\\call_user_func(array(%s, '%s')%s)", $class, $factory[1], count($arguments) > 0 ? ', '.implode(', ', $arguments) : '');
+                    }
+
+                    if ($factory[0] instanceof Reference) {
+                        return sprintf('%s->%s(%s)', $class, $factory[1], implode(', ', $arguments));
+                    }
+                }
+
+                throw new RuntimeException('Cannot dump definition because of invalid factory');
+            }
+
+            $class = $value->getClass();
+            if (null === $class) {
+                throw new RuntimeException('Cannot dump definitions which have no class nor factory.');
+            }
+
+            return sprintf('new %s(%s)', $this->dumpLiteralClass($this->dumpValue($class)), implode(', ', $arguments));
+        } elseif ($value instanceof Variable) {
+            return '$'.$value;
+        } elseif ($value instanceof Reference) {
+            $id = $this->container->normalizeId($value);
+            if (null !== $this->referenceVariables && isset($this->referenceVariables[$id])) {
+                return $this->dumpValue($this->referenceVariables[$id], $interpolate);
+            }
+
+            return $this->getServiceCall($id, $value);
+        } elseif ($value instanceof Expression) {
+            return $this->getExpressionLanguage()->compile((string) $value, array('this' => 'container'));
+        } elseif ($value instanceof Parameter) {
+            return $this->dumpParameter($value);
+        } elseif (true === $interpolate && is_string($value)) {
+            if (preg_match('/^%([^%]+)%$/', $value, $match)) {
+                // we do this to deal with non string values (Boolean, integer, ...)
+                // the preg_replace_callback converts them to strings
+                return $this->dumpParameter($match[1]);
+            } else {
+                $replaceParameters = function ($match) {
+                    return "'.".$this->dumpParameter($match[2]).".'";
+                };
+
+                $code = str_replace('%%', '%', preg_replace_callback('/(?<!%)(%)([^%]+)\1/', $replaceParameters, $this->export($value)));
+
+                return $code;
+            }
+        } elseif (is_object($value) || is_resource($value)) {
+            throw new RuntimeException('Unable to dump a service container if a parameter is an object or a resource.');
+        }
+
+        return $this->export($value);
+    }
+
+    /**
+     * Dumps a string to a literal (aka PHP Code) class value.
+     *
+     * @param string $class
+     *
+     * @return string
+     *
+     * @throws RuntimeException
+     */
+    private function dumpLiteralClass($class)
+    {
+        if (false !== strpos($class, '$')) {
+            return sprintf('${($_ = %s) && false ?: "_"}', $class);
+        }
+        if (0 !== strpos($class, "'") || !preg_match('/^\'(?:\\\{2})?[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*(?:\\\{2}[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*)*\'$/', $class)) {
+            throw new RuntimeException(sprintf('Cannot dump definition because of invalid class name (%s)', $class ?: 'n/a'));
+        }
+
+        $class = substr(str_replace('\\\\', '\\', $class), 1, -1);
+
+        return 0 === strpos($class, '\\') ? $class : '\\'.$class;
+    }
+
+    /**
+     * Dumps a parameter.
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    private function dumpParameter($name)
+    {
+        if ($this->container->isCompiled() && $this->container->hasParameter($name)) {
+            $value = $this->container->getParameter($name);
+            $dumpedValue = $this->dumpValue($value, false);
+
+            if (!$value || !is_array($value)) {
+                return $dumpedValue;
+            }
+
+            if (!preg_match("/\\\$this->(?:getEnv\('(?:\w++:)*+\w++'\)|targetDirs\[\d++\])/", $dumpedValue)) {
+                return sprintf("\$this->parameters['%s']", $name);
+            }
+        }
+
+        return sprintf("\$this->getParameter('%s')", $name);
+    }
+
+    /**
+     * Gets a service call.
+     *
+     * @param string    $id
+     * @param Reference $reference
+     *
+     * @return string
+     */
+    private function getServiceCall($id, Reference $reference = null)
+    {
+        while ($this->container->hasAlias($id)) {
+            $id = (string) $this->container->getAlias($id);
+        }
+        $id = $this->container->normalizeId($id);
+
+        if ('service_container' === $id) {
+            return '$this';
+        }
+
+        if ($this->container->hasDefinition($id) && ($definition = $this->container->getDefinition($id)) && !$definition->isSynthetic()) {
+            if (null !== $reference && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $reference->getInvalidBehavior()) {
+                $code = 'null';
+                if (!$definition->isShared()) {
+                    return $code;
+                }
+            } elseif ($this->isTrivialInstance($definition)) {
+                $code = substr($this->addNewInstance($definition, '', '', $id), 8, -2);
+                if ($definition->isShared()) {
+                    $code = sprintf('$this->services[\'%s\'] = %s', $id, $code);
+                }
+            } elseif ($this->asFiles && $definition->isShared() && !$this->isHotPath($definition)) {
+                $code = sprintf("\$this->load('%s.php')", $this->generateMethodName($id));
+            } else {
+                $code = sprintf('$this->%s()', $this->generateMethodName($id));
+            }
+        } elseif (null !== $reference && ContainerInterface::IGNORE_ON_UNINITIALIZED_REFERENCE === $reference->getInvalidBehavior()) {
+            return 'null';
+        } elseif (null !== $reference && ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE !== $reference->getInvalidBehavior()) {
+            $code = sprintf('$this->get(\'%s\', /* ContainerInterface::NULL_ON_INVALID_REFERENCE */ %d)', $id, ContainerInterface::NULL_ON_INVALID_REFERENCE);
+        } else {
+            $code = sprintf('$this->get(\'%s\')', $id);
+        }
+
+        // The following is PHP 5.5 syntax for what could be written as "(\$this->services['$id'] ?? $code)" on PHP>=7.0
+
+        return "\${(\$_ = isset(\$this->services['$id']) ? \$this->services['$id'] : $code) && false ?: '_'}";
+    }
+
+    /**
+     * Initializes the method names map to avoid conflicts with the Container methods.
+     *
+     * @param string $class the container base class
+     */
+    private function initializeMethodNamesMap($class)
+    {
+        $this->serviceIdToMethodNameMap = array();
+        $this->usedMethodNames = array();
+
+        if ($reflectionClass = $this->container->getReflectionClass($class)) {
+            foreach ($reflectionClass->getMethods() as $method) {
+                $this->usedMethodNames[strtolower($method->getName())] = true;
+            }
+        }
+    }
+
+    /**
+     * Convert a service id to a valid PHP method name.
+     *
+     * @param string $id
+     *
+     * @return string
+     *
+     * @throws InvalidArgumentException
+     */
+    private function generateMethodName($id)
+    {
+        if (isset($this->serviceIdToMethodNameMap[$id])) {
+            return $this->serviceIdToMethodNameMap[$id];
+        }
+
+        $i = strrpos($id, '\\');
+        $name = Container::camelize(false !== $i && isset($id[1 + $i]) ? substr($id, 1 + $i) : $id);
+        $name = preg_replace('/[^a-zA-Z0-9_\x7f-\xff]/', '', $name);
+        $methodName = 'get'.$name.'Service';
+        $suffix = 1;
+
+        while (isset($this->usedMethodNames[strtolower($methodName)])) {
+            ++$suffix;
+            $methodName = 'get'.$name.$suffix.'Service';
+        }
+
+        $this->serviceIdToMethodNameMap[$id] = $methodName;
+        $this->usedMethodNames[strtolower($methodName)] = true;
+
+        return $methodName;
+    }
+
+    /**
+     * Returns the next name to use.
+     *
+     * @return string
+     */
+    private function getNextVariableName()
+    {
+        $firstChars = self::FIRST_CHARS;
+        $firstCharsLength = strlen($firstChars);
+        $nonFirstChars = self::NON_FIRST_CHARS;
+        $nonFirstCharsLength = strlen($nonFirstChars);
+
+        while (true) {
+            $name = '';
+            $i = $this->variableCount;
+
+            if ('' === $name) {
+                $name .= $firstChars[$i % $firstCharsLength];
+                $i = (int) ($i / $firstCharsLength);
+            }
+
+            while ($i > 0) {
+                --$i;
+                $name .= $nonFirstChars[$i % $nonFirstCharsLength];
+                $i = (int) ($i / $nonFirstCharsLength);
+            }
+
+            ++$this->variableCount;
+
+            // check that the name is not reserved
+            if (in_array($name, $this->reservedVariables, true)) {
+                continue;
+            }
+
+            return $name;
+        }
+    }
+
+    private function getExpressionLanguage()
+    {
+        if (null === $this->expressionLanguage) {
+            if (!class_exists('Symfony\Component\ExpressionLanguage\ExpressionLanguage')) {
+                throw new RuntimeException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
+            }
+            $providers = $this->container->getExpressionLanguageProviders();
+            $this->expressionLanguage = new ExpressionLanguage(null, $providers, function ($arg) {
+                $id = '""' === substr_replace($arg, '', 1, -1) ? stripcslashes(substr($arg, 1, -1)) : null;
+
+                if (null !== $id && ($this->container->hasAlias($id) || $this->container->hasDefinition($id))) {
+                    return $this->getServiceCall($id);
+                }
+
+                return sprintf('$this->get(%s)', $arg);
+            });
+
+            if ($this->container->isTrackingResources()) {
+                foreach ($providers as $provider) {
+                    $this->container->addObjectResource($provider);
+                }
+            }
+        }
+
+        return $this->expressionLanguage;
+    }
+
+    private function isHotPath(Definition $definition)
+    {
+        return $this->hotPathTag && $definition->hasTag($this->hotPathTag) && !$definition->isDeprecated();
+    }
+
+    private function export($value)
+    {
+        if (null !== $this->targetDirRegex && is_string($value) && preg_match($this->targetDirRegex, $value, $matches, PREG_OFFSET_CAPTURE)) {
+            $prefix = $matches[0][1] ? $this->doExport(substr($value, 0, $matches[0][1]), true).'.' : '';
+            $suffix = $matches[0][1] + strlen($matches[0][0]);
+            $suffix = isset($value[$suffix]) ? '.'.$this->doExport(substr($value, $suffix), true) : '';
+            $dirname = $this->asFiles ? '$this->containerDir' : '__DIR__';
+            $offset = 1 + $this->targetDirMaxMatches - count($matches);
+
+            if ($this->asFiles || 0 < $offset) {
+                $dirname = sprintf('$this->targetDirs[%d]', $offset);
+            }
+
+            if ($prefix || $suffix) {
+                return sprintf('(%s%s%s)', $prefix, $dirname, $suffix);
+            }
+
+            return $dirname;
+        }
+
+        return $this->doExport($value, true);
+    }
+
+    private function doExport($value, $resolveEnv = false)
+    {
+        if (is_string($value) && false !== strpos($value, "\n")) {
+            $cleanParts = explode("\n", $value);
+            $cleanParts = array_map(function ($part) { return var_export($part, true); }, $cleanParts);
+            $export = implode('."\n".', $cleanParts);
+        } else {
+            $export = var_export($value, true);
+        }
+
+        if ($resolveEnv && "'" === $export[0] && $export !== $resolvedExport = $this->container->resolveEnvPlaceholders($export, "'.\$this->getEnv('string:%s').'")) {
+            $export = $resolvedExport;
+            if (".''" === substr($export, -3)) {
+                $export = substr($export, 0, -3);
+                if ("'" === $export[1]) {
+                    $export = substr_replace($export, '', 18, 7);
+                }
+            }
+            if ("'" === $export[1]) {
+                $export = substr($export, 3);
+            }
+        }
+
+        return $export;
+    }
+}