| ActiveTheme::$baseThemeExtensions           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Theme/ActiveTheme.php           | 
                                                                                        An array of base theme extension objects keyed by name.           | 
              
          
                                                                                        | ActiveTheme::$extension           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Theme/ActiveTheme.php           | 
                                                                                        The extension object.           | 
              
          
                                                                                        | ActiveTheme::getBaseThemeExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Theme/ActiveTheme.php           | 
                                                                                        Returns an array of base theme extension objects keyed by name.           | 
              
          
                                                                                        | ActiveTheme::getExtension           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Theme/ActiveTheme.php           | 
                                                                                        Returns the extension object.           | 
              
          
                                                                                        | AdminController::$moduleExtensionList           | 
                                                                                        property           | 
                                                                                        core/modules/system/src/Controller/AdminController.php           | 
                                                                                        The module extension list.           | 
              
          
                                                                                        | Archiver::$extensions           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Archiver/Annotation/Archiver.php           | 
                                                                                        An array of valid extensions for this archiver.           | 
              
          
                                                                                        | ArchiverManager::getExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Archiver/ArchiverManager.php           | 
                                                                                        Returns a string of supported archive extensions.           | 
              
          
                                                                                        | AssetControllerBase::$fileExtension           | 
                                                                                        property           | 
                                                                                        core/modules/system/src/Controller/AssetControllerBase.php           | 
                                                                                        The aggregate file extension.           | 
              
          
                                                                                        | CategorizingPluginManagerTrait::getModuleExtensionList           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Plugin/CategorizingPluginManagerTrait.php           | 
                                                                                        Returns the module extension list used.           | 
              
          
                                                                                        | CKEditor5ImageController::DEFAULT_IMAGE_EXTENSIONS           | 
                                                                                        constant           | 
                                                                                        core/modules/ckeditor5/src/Controller/CKEditor5ImageController.php           | 
                                                                                        The default allowed image extensions.           | 
              
          
                                                                                        | ComponentsTwigExtension           | 
                                                                                        class           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        The twig extension so Drupal can recognize the new code.           | 
              
          
                                                                                        | ComponentsTwigExtension.php           | 
                                                                                        file           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                                   | 
              
          
                                                                                        | ComponentsTwigExtension::addAdditionalContext           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        Appends additional context to the template based on the template id.           | 
              
          
                                                                                        | ComponentsTwigExtension::doValidateProps           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        Performs the actual validation of the schema for the props.           | 
              
          
                                                                                        | ComponentsTwigExtension::getFunctions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                                   | 
              
          
                                                                                        | ComponentsTwigExtension::getNodeVisitors           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                                   | 
              
          
                                                                                        | ComponentsTwigExtension::mergeAdditionalRenderContext           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        Calculates additional context for this template.           | 
              
          
                                                                                        | ComponentsTwigExtension::validateProps           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        Validates the props in development environments.           | 
              
          
                                                                                        | ComponentsTwigExtension::__construct           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Template/ComponentsTwigExtension.php           | 
                                                                                        Creates TwigExtension.           | 
              
          
                                                                                        | ConfigImporter::$extensionChangelist           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        List of extension changes to be processed by the import().           | 
              
          
                                                                                        | ConfigImporter::$moduleExtensionList           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        The module extension list.           | 
              
          
                                                                                        | ConfigImporter::$processedExtensions           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        List of extension changes processed by the import().           | 
              
          
                                                                                        | ConfigImporter::$themeExtensionList           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        The theme extension list.           | 
              
          
                                                                                        | ConfigImporter::$totalExtensionsToProcess           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        The total number of extensions to process.           | 
              
          
                                                                                        | ConfigImporter::createExtensionChangelist           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Populates the extension change list.           | 
              
          
                                                                                        | ConfigImporter::getEmptyExtensionsProcessedList           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Gets an empty list of extensions to process.           | 
              
          
                                                                                        | ConfigImporter::getExtensionChangelist           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Gets a list changes for extensions.           | 
              
          
                                                                                        | ConfigImporter::getNextExtensionOperation           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Gets the next extension operation to perform.           | 
              
          
                                                                                        | ConfigImporter::getProcessedExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Gets list of processed extension changes.           | 
              
          
                                                                                        | ConfigImporter::getUnprocessedExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Gets a list of unprocessed changes for extensions.           | 
              
          
                                                                                        | ConfigImporter::processExtension           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Processes an extension change.           | 
              
          
                                                                                        | ConfigImporter::processExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Processes extensions as a batch operation.           | 
              
          
                                                                                        | ConfigImporter::setProcessedExtension           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigImporter.php           | 
                                                                                        Sets an extension change as processed.           | 
              
          
                                                                                        | ConfigImporterTest::testMissingCoreExtension           | 
                                                                                        function           | 
                                                                                        core/tests/Drupal/KernelTests/Core/Config/ConfigImporterTest.php           | 
                                                                                        Tests missing core.extension during configuration import.           | 
              
          
                                                                                        | ConfigImportSubscriber::$moduleExtensionList           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/EventSubscriber/ConfigImportSubscriber.php           | 
                                                                                        Module extension list.           | 
              
          
                                                                                        | ConfigImportUITest::testExtensionValidation           | 
                                                                                        function           | 
                                                                                        core/modules/config/tests/src/Functional/ConfigImportUITest.php           | 
                                                                                        Tests config importer cannot uninstall extensions which are depended on.           | 
              
          
                                                                                        | ConfigInstaller::$extensionPathResolver           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigInstaller.php           | 
                                                                                        The extension path resolver.           | 
              
          
                                                                                        | ConfigInstaller::getEnabledExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigInstaller.php           | 
                                                                                        Gets the list of enabled extensions including both modules and themes.           | 
              
          
                                                                                        | ConfigManager::$extensionPathResolver           | 
                                                                                        property           | 
                                                                                        core/lib/Drupal/Core/Config/ConfigManager.php           | 
                                                                                        The extension path resolver.           | 
              
          
                                                                                        | ConfigSingleImportForm::$moduleExtensionList           | 
                                                                                        property           | 
                                                                                        core/modules/config/src/Form/ConfigSingleImportForm.php           | 
                                                                                        The module extension list.           | 
              
          
                                                                                        | ConfigSingleImportForm::$themeExtensionList           | 
                                                                                        property           | 
                                                                                        core/modules/config/src/Form/ConfigSingleImportForm.php           | 
                                                                                        The theme extension list.           | 
              
          
                                                                                        | ConfigSync::$moduleExtensionList           | 
                                                                                        property           | 
                                                                                        core/modules/config/src/Form/ConfigSync.php           | 
                                                                                        The module extension list.           | 
              
          
                                                                                        | ConfigSync::$themeExtensionList           | 
                                                                                        property           | 
                                                                                        core/modules/config/src/Form/ConfigSync.php           | 
                                                                                        The theme extension list.           | 
              
          
                                                                                        | ConvertImageEffect::getDerivativeExtension           | 
                                                                                        function           | 
                                                                                        core/modules/image/src/Plugin/ImageEffect/ConvertImageEffect.php           | 
                                                                                        Returns the extension of the derivative after applying this image effect.           | 
              
          
                                                                                        | core.extension.schema.yml           | 
                                                                                        file           | 
                                                                                        core/config/schema/core.extension.schema.yml           | 
                                                                                        core/config/schema/core.extension.schema.yml           | 
              
          
                                                                                        | core.extension.yml           | 
                                                                                        file           | 
                                                                                        core/config/install/core.extension.yml           | 
                                                                                        core/config/install/core.extension.yml           | 
              
          
                                                                                        | DatabaseDriver::getExtensionFilename           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Extension/DatabaseDriver.php           | 
                                                                                        Returns the name of the main extension file, if any.           | 
              
          
                                                                                        | DatabaseDriver::getExtensionPathname           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Extension/DatabaseDriver.php           | 
                                                                                        Returns the relative path of the main extension file, if any.           | 
              
          
                                                                                        | DatabaseDriverList::createExtensionInfo           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Extension/DatabaseDriverList.php           | 
                                                                                        Creates the info value for an extension object.           | 
              
          
                                                                                        | DatabaseDriverList::doScanExtensions           | 
                                                                                        function           | 
                                                                                        core/lib/Drupal/Core/Extension/DatabaseDriverList.php           | 
                                                                                        Scans the available extensions.           |