243 lines
9.1 KiB
PHP
243 lines
9.1 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\DependencyInjection\Compiler;
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use Symfony\Component\DependencyInjection\Argument\ArgumentInterface;
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use Symfony\Component\DependencyInjection\ChildDefinition;
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use Symfony\Component\DependencyInjection\ContainerBuilder;
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use Symfony\Component\DependencyInjection\Definition;
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use Symfony\Component\DependencyInjection\Exception\LogicException;
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use Symfony\Component\DependencyInjection\Exception\RuntimeException;
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use Symfony\Component\DependencyInjection\ExpressionLanguage;
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use Symfony\Component\DependencyInjection\Reference;
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use Symfony\Component\ExpressionLanguage\Expression;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*/
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abstract class AbstractRecursivePass implements CompilerPassInterface
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{
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/**
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* @var ContainerBuilder
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*/
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protected $container;
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protected $currentId;
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private $processExpressions = false;
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private $expressionLanguage;
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private $inExpression = false;
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/**
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* {@inheritdoc}
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*/
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public function process(ContainerBuilder $container)
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{
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$this->container = $container;
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try {
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$this->processValue($container->getDefinitions(), true);
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} finally {
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$this->container = null;
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}
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}
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protected function enableExpressionProcessing()
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{
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$this->processExpressions = true;
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}
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protected function inExpression(bool $reset = true): bool
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{
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$inExpression = $this->inExpression;
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if ($reset) {
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$this->inExpression = false;
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}
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return $inExpression;
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}
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/**
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* Processes a value found in a definition tree.
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*
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* @param mixed $value
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*
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* @return mixed
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*/
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protected function processValue($value, bool $isRoot = false)
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{
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if (\is_array($value)) {
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foreach ($value as $k => $v) {
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if ($isRoot) {
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$this->currentId = $k;
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}
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if ($v !== $processedValue = $this->processValue($v, $isRoot)) {
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$value[$k] = $processedValue;
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}
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}
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} elseif ($value instanceof ArgumentInterface) {
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$value->setValues($this->processValue($value->getValues()));
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} elseif ($value instanceof Expression && $this->processExpressions) {
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$this->getExpressionLanguage()->compile((string) $value, ['this' => 'container']);
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} elseif ($value instanceof Definition) {
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$value->setArguments($this->processValue($value->getArguments()));
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$value->setProperties($this->processValue($value->getProperties()));
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$value->setMethodCalls($this->processValue($value->getMethodCalls()));
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$changes = $value->getChanges();
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if (isset($changes['factory'])) {
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$value->setFactory($this->processValue($value->getFactory()));
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}
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if (isset($changes['configurator'])) {
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$value->setConfigurator($this->processValue($value->getConfigurator()));
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}
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}
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return $value;
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}
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/**
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* @return \ReflectionFunctionAbstract|null
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*
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* @throws RuntimeException
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*/
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protected function getConstructor(Definition $definition, bool $required)
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{
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if ($definition->isSynthetic()) {
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return null;
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}
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if (\is_string($factory = $definition->getFactory())) {
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if (!\function_exists($factory)) {
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throw new RuntimeException(sprintf('Invalid service "%s": function "%s" does not exist.', $this->currentId, $factory));
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}
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$r = new \ReflectionFunction($factory);
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if (false !== $r->getFileName() && file_exists($r->getFileName())) {
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$this->container->fileExists($r->getFileName());
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}
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return $r;
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}
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if ($factory) {
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[$class, $method] = $factory;
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if ('__construct' === $method) {
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throw new RuntimeException(sprintf('Invalid service "%s": "__construct()" cannot be used as a factory method.', $this->currentId));
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}
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if ($class instanceof Reference) {
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$factoryDefinition = $this->container->findDefinition((string) $class);
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while ((null === $class = $factoryDefinition->getClass()) && $factoryDefinition instanceof ChildDefinition) {
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$factoryDefinition = $this->container->findDefinition($factoryDefinition->getParent());
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}
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} elseif ($class instanceof Definition) {
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$class = $class->getClass();
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} elseif (null === $class) {
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$class = $definition->getClass();
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}
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return $this->getReflectionMethod(new Definition($class), $method);
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}
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while ((null === $class = $definition->getClass()) && $definition instanceof ChildDefinition) {
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$definition = $this->container->findDefinition($definition->getParent());
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}
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try {
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if (!$r = $this->container->getReflectionClass($class)) {
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if (null === $class) {
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throw new RuntimeException(sprintf('Invalid service "%s": the class is not set.', $this->currentId));
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}
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throw new RuntimeException(sprintf('Invalid service "%s": class "%s" does not exist.', $this->currentId, $class));
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}
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} catch (\ReflectionException $e) {
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throw new RuntimeException(sprintf('Invalid service "%s": ', $this->currentId).lcfirst($e->getMessage()));
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}
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if (!$r = $r->getConstructor()) {
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if ($required) {
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throw new RuntimeException(sprintf('Invalid service "%s": class%s has no constructor.', $this->currentId, sprintf($class !== $this->currentId ? ' "%s"' : '', $class)));
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}
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} elseif (!$r->isPublic()) {
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throw new RuntimeException(sprintf('Invalid service "%s": ', $this->currentId).sprintf($class !== $this->currentId ? 'constructor of class "%s"' : 'its constructor', $class).' must be public.');
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}
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return $r;
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}
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/**
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* @throws RuntimeException
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*
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* @return \ReflectionFunctionAbstract
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*/
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protected function getReflectionMethod(Definition $definition, string $method)
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{
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if ('__construct' === $method) {
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return $this->getConstructor($definition, true);
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}
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while ((null === $class = $definition->getClass()) && $definition instanceof ChildDefinition) {
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$definition = $this->container->findDefinition($definition->getParent());
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}
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if (null === $class) {
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throw new RuntimeException(sprintf('Invalid service "%s": the class is not set.', $this->currentId));
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}
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if (!$r = $this->container->getReflectionClass($class)) {
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throw new RuntimeException(sprintf('Invalid service "%s": class "%s" does not exist.', $this->currentId, $class));
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}
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if (!$r->hasMethod($method)) {
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if ($r->hasMethod('__call') && ($r = $r->getMethod('__call')) && $r->isPublic()) {
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return new \ReflectionMethod(static function (...$arguments) {}, '__invoke');
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}
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throw new RuntimeException(sprintf('Invalid service "%s": method "%s()" does not exist.', $this->currentId, $class !== $this->currentId ? $class.'::'.$method : $method));
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}
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$r = $r->getMethod($method);
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if (!$r->isPublic()) {
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throw new RuntimeException(sprintf('Invalid service "%s": method "%s()" must be public.', $this->currentId, $class !== $this->currentId ? $class.'::'.$method : $method));
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}
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return $r;
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}
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private function getExpressionLanguage(): ExpressionLanguage
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{
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if (null === $this->expressionLanguage) {
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if (!class_exists(ExpressionLanguage::class)) {
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throw new LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed. Try running "composer require symfony/expression-language".');
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}
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$providers = $this->container->getExpressionLanguageProviders();
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$this->expressionLanguage = new ExpressionLanguage(null, $providers, function (string $arg): string {
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if ('""' === substr_replace($arg, '', 1, -1)) {
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$id = stripcslashes(substr($arg, 1, -1));
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$this->inExpression = true;
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$arg = $this->processValue(new Reference($id));
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$this->inExpression = false;
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if (!$arg instanceof Reference) {
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throw new RuntimeException(sprintf('"%s::processValue()" must return a Reference when processing an expression, "%s" returned for service("%s").', static::class, get_debug_type($arg), $id));
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}
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$arg = sprintf('"%s"', $arg);
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}
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return sprintf('$this->get(%s)', $arg);
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});
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}
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return $this->expressionLanguage;
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}
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}
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