248 lines
10 KiB
PHP
248 lines
10 KiB
PHP
<?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\Loader;
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use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;
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use Symfony\Component\Config\Exception\LoaderLoadException;
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use Symfony\Component\Config\FileLocatorInterface;
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use Symfony\Component\Config\Loader\FileLoader as BaseFileLoader;
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use Symfony\Component\Config\Loader\Loader;
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use Symfony\Component\Config\Resource\GlobResource;
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use Symfony\Component\DependencyInjection\Attribute\When;
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use Symfony\Component\DependencyInjection\ChildDefinition;
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use Symfony\Component\DependencyInjection\Compiler\RegisterAutoconfigureAttributesPass;
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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\InvalidArgumentException;
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/**
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* FileLoader is the abstract class used by all built-in loaders that are file based.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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abstract class FileLoader extends BaseFileLoader
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{
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public const ANONYMOUS_ID_REGEXP = '/^\.\d+_[^~]*+~[._a-zA-Z\d]{7}$/';
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protected $container;
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protected $isLoadingInstanceof = false;
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protected $instanceof = [];
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protected $interfaces = [];
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protected $singlyImplemented = [];
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protected $autoRegisterAliasesForSinglyImplementedInterfaces = true;
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public function __construct(ContainerBuilder $container, FileLocatorInterface $locator, string $env = null)
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{
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$this->container = $container;
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parent::__construct($locator, $env);
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}
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/**
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* {@inheritdoc}
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*
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* @param bool|string $ignoreErrors Whether errors should be ignored; pass "not_found" to ignore only when the loaded resource is not found
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*/
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public function import($resource, string $type = null, $ignoreErrors = false, string $sourceResource = null, $exclude = null)
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{
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$args = \func_get_args();
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if ($ignoreNotFound = 'not_found' === $ignoreErrors) {
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$args[2] = false;
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} elseif (!\is_bool($ignoreErrors)) {
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throw new \TypeError(sprintf('Invalid argument $ignoreErrors provided to "%s::import()": boolean or "not_found" expected, "%s" given.', static::class, get_debug_type($ignoreErrors)));
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}
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try {
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return parent::import(...$args);
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} catch (LoaderLoadException $e) {
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if (!$ignoreNotFound || !($prev = $e->getPrevious()) instanceof FileLocatorFileNotFoundException) {
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throw $e;
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}
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foreach ($prev->getTrace() as $frame) {
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if ('import' === ($frame['function'] ?? null) && is_a($frame['class'] ?? '', Loader::class, true)) {
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break;
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}
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}
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if (__FILE__ !== $frame['file']) {
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throw $e;
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}
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}
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return null;
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}
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/**
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* Registers a set of classes as services using PSR-4 for discovery.
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*
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* @param Definition $prototype A definition to use as template
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* @param string $namespace The namespace prefix of classes in the scanned directory
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* @param string $resource The directory to look for classes, glob-patterns allowed
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* @param string|string[]|null $exclude A globbed path of files to exclude or an array of globbed paths of files to exclude
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*/
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public function registerClasses(Definition $prototype, string $namespace, string $resource, $exclude = null)
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{
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if (!str_ends_with($namespace, '\\')) {
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throw new InvalidArgumentException(sprintf('Namespace prefix must end with a "\\": "%s".', $namespace));
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}
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if (!preg_match('/^(?:[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+\\\\)++$/', $namespace)) {
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throw new InvalidArgumentException(sprintf('Namespace is not a valid PSR-4 prefix: "%s".', $namespace));
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}
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$autoconfigureAttributes = new RegisterAutoconfigureAttributesPass();
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$autoconfigureAttributes = $autoconfigureAttributes->accept($prototype) ? $autoconfigureAttributes : null;
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$classes = $this->findClasses($namespace, $resource, (array) $exclude, $autoconfigureAttributes);
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// prepare for deep cloning
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$serializedPrototype = serialize($prototype);
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foreach ($classes as $class => $errorMessage) {
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if (null === $errorMessage && $autoconfigureAttributes && $this->env) {
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$r = $this->container->getReflectionClass($class);
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$attribute = null;
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foreach ($r->getAttributes(When::class) as $attribute) {
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if ($this->env === $attribute->newInstance()->env) {
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$attribute = null;
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break;
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}
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}
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if (null !== $attribute) {
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continue;
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}
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}
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if (interface_exists($class, false)) {
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$this->interfaces[] = $class;
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} else {
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$this->setDefinition($class, $definition = unserialize($serializedPrototype));
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if (null !== $errorMessage) {
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$definition->addError($errorMessage);
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continue;
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}
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foreach (class_implements($class, false) as $interface) {
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$this->singlyImplemented[$interface] = ($this->singlyImplemented[$interface] ?? $class) !== $class ? false : $class;
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}
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}
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}
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if ($this->autoRegisterAliasesForSinglyImplementedInterfaces) {
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$this->registerAliasesForSinglyImplementedInterfaces();
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}
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}
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public function registerAliasesForSinglyImplementedInterfaces()
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{
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foreach ($this->interfaces as $interface) {
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if (!empty($this->singlyImplemented[$interface]) && !$this->container->has($interface)) {
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$this->container->setAlias($interface, $this->singlyImplemented[$interface]);
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}
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}
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$this->interfaces = $this->singlyImplemented = [];
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}
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/**
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* Registers a definition in the container with its instanceof-conditionals.
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*/
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protected function setDefinition(string $id, Definition $definition)
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{
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$this->container->removeBindings($id);
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if ($this->isLoadingInstanceof) {
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if (!$definition instanceof ChildDefinition) {
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throw new InvalidArgumentException(sprintf('Invalid type definition "%s": ChildDefinition expected, "%s" given.', $id, get_debug_type($definition)));
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}
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$this->instanceof[$id] = $definition;
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} else {
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$this->container->setDefinition($id, $definition->setInstanceofConditionals($this->instanceof));
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}
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}
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private function findClasses(string $namespace, string $pattern, array $excludePatterns, ?RegisterAutoconfigureAttributesPass $autoconfigureAttributes): array
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{
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$parameterBag = $this->container->getParameterBag();
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$excludePaths = [];
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$excludePrefix = null;
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$excludePatterns = $parameterBag->unescapeValue($parameterBag->resolveValue($excludePatterns));
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foreach ($excludePatterns as $excludePattern) {
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foreach ($this->glob($excludePattern, true, $resource, true, true) as $path => $info) {
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if (null === $excludePrefix) {
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$excludePrefix = $resource->getPrefix();
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}
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// normalize Windows slashes and remove trailing slashes
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$excludePaths[rtrim(str_replace('\\', '/', $path), '/')] = true;
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}
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}
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$pattern = $parameterBag->unescapeValue($parameterBag->resolveValue($pattern));
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$classes = [];
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$extRegexp = '/\\.php$/';
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$prefixLen = null;
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foreach ($this->glob($pattern, true, $resource, false, false, $excludePaths) as $path => $info) {
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if (null === $prefixLen) {
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$prefixLen = \strlen($resource->getPrefix());
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if ($excludePrefix && !str_starts_with($excludePrefix, $resource->getPrefix())) {
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throw new InvalidArgumentException(sprintf('Invalid "exclude" pattern when importing classes for "%s": make sure your "exclude" pattern (%s) is a subset of the "resource" pattern (%s).', $namespace, $excludePattern, $pattern));
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}
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}
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if (isset($excludePaths[str_replace('\\', '/', $path)])) {
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continue;
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}
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if (!preg_match($extRegexp, $path, $m) || !$info->isReadable()) {
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continue;
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}
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$class = $namespace.ltrim(str_replace('/', '\\', substr($path, $prefixLen, -\strlen($m[0]))), '\\');
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if (!preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\\\\[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)*+$/', $class)) {
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continue;
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}
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try {
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$r = $this->container->getReflectionClass($class);
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} catch (\ReflectionException $e) {
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$classes[$class] = $e->getMessage();
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continue;
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}
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// check to make sure the expected class exists
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if (!$r) {
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throw new InvalidArgumentException(sprintf('Expected to find class "%s" in file "%s" while importing services from resource "%s", but it was not found! Check the namespace prefix used with the resource.', $class, $path, $pattern));
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}
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if ($r->isInstantiable() || $r->isInterface()) {
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$classes[$class] = null;
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}
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if ($autoconfigureAttributes && !$r->isInstantiable()) {
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$autoconfigureAttributes->processClass($this->container, $r);
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}
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}
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// track only for new & removed files
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if ($resource instanceof GlobResource) {
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$this->container->addResource($resource);
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} else {
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foreach ($resource as $path) {
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$this->container->fileExists($path, false);
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}
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}
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return $classes;
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}
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}
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