40 files declare their use of DeriverBase in Drupal 9
- BlockContent.php in core/
modules/ block_content/ src/ Plugin/ Derivative/ BlockContent.php - ConfigTranslationContextualLinks.php in core/
modules/ config_translation/ src/ Plugin/ Derivative/ ConfigTranslationContextualLinks.php - ConfigTranslationLocalTasks.php in core/
modules/ config_translation/ src/ Plugin/ Derivative/ ConfigTranslationLocalTasks.php - ContentEntityDeriver.php in core/
modules/ migrate_drupal/ src/ Plugin/ migrate/ source/ ContentEntityDeriver.php - ContentTranslationContextualLinks.php in core/
modules/ content_translation/ src/ Plugin/ Derivative/ ContentTranslationContextualLinks.php - ContentTranslationLocalTasks.php in core/
modules/ content_translation/ src/ Plugin/ Derivative/ ContentTranslationLocalTasks.php - D6NodeDeriver.php in core/
modules/ node/ src/ Plugin/ migrate/ D6NodeDeriver.php - D6TermNodeDeriver.php in core/
modules/ taxonomy/ src/ Plugin/ migrate/ D6TermNodeDeriver.php - D7NodeDeriver.php in core/
modules/ node/ src/ Plugin/ migrate/ D7NodeDeriver.php - D7TaxonomyTermDeriver.php in core/
modules/ taxonomy/ src/ Plugin/ migrate/ D7TaxonomyTermDeriver.php - DefaultSelectionDeriver.php in core/
lib/ Drupal/ Core/ Entity/ Plugin/ Derivative/ DefaultSelectionDeriver.php - DefaultWizardDeriver.php in core/
modules/ views/ src/ Plugin/ Derivative/ DefaultWizardDeriver.php - DynamicLocalTasks.php in core/
modules/ content_moderation/ src/ Plugin/ Derivative/ DynamicLocalTasks.php - DynamicLocalTasks.php in core/
modules/ media/ src/ Plugin/ Derivative/ DynamicLocalTasks.php - EntityActionDeriverBase.php in core/
lib/ Drupal/ Core/ Action/ Plugin/ Action/ Derivative/ EntityActionDeriverBase.php - EntityBundle.php in core/
lib/ Drupal/ Core/ Entity/ Plugin/ Condition/ Deriver/ EntityBundle.php - EntityReferenceTranslationDeriver.php in core/
modules/ migrate_drupal/ src/ Plugin/ migrate/ EntityReferenceTranslationDeriver.php - EntityTestLocalTasks.php in core/
modules/ system/ tests/ modules/ entity_test/ src/ Plugin/ Derivative/ EntityTestLocalTasks.php - ExtraFieldBlockDeriver.php in core/
modules/ layout_builder/ src/ Plugin/ Derivative/ ExtraFieldBlockDeriver.php - FieldBlockDeriver.php in core/
modules/ layout_builder/ src/ Plugin/ Derivative/ FieldBlockDeriver.php - FieldUiLocalAction.php in core/
modules/ field_ui/ src/ Plugin/ Derivative/ FieldUiLocalAction.php - FieldUiLocalTask.php in core/
modules/ field_ui/ src/ Plugin/ Derivative/ FieldUiLocalTask.php - InlineBlockDeriver.php in core/
modules/ layout_builder/ src/ Plugin/ Derivative/ InlineBlockDeriver.php - LanguageBlock.php in core/
modules/ language/ src/ Plugin/ Derivative/ LanguageBlock.php - LayoutBuilderLocalTaskDeriver.php in core/
modules/ layout_builder/ src/ Plugin/ Derivative/ LayoutBuilderLocalTaskDeriver.php - LayoutPluginManagerTest.php in core/
tests/ Drupal/ Tests/ Core/ Layout/ LayoutPluginManagerTest.php - LocalActionTest.php in core/
modules/ system/ tests/ modules/ menu_test/ src/ Plugin/ Derivative/ LocalActionTest.php - LocalTaskTest.php in core/
modules/ system/ tests/ modules/ menu_test/ src/ Plugin/ Derivative/ LocalTaskTest.php - LocalTaskTestWithUnsafeTitle.php in core/
modules/ system/ tests/ modules/ menu_test/ src/ Plugin/ Derivative/ LocalTaskTestWithUnsafeTitle.php - MenuLinkContentDeriver.php in core/
modules/ menu_link_content/ src/ Plugin/ Deriver/ MenuLinkContentDeriver.php - MenuLinkTestWithUnsafeTitle.php in core/
modules/ system/ tests/ modules/ menu_test/ src/ Plugin/ Derivative/ MenuLinkTestWithUnsafeTitle.php - OEmbedDeriver.php in core/
modules/ media/ src/ Plugin/ media/ Source/ OEmbedDeriver.php - SearchLocalTask.php in core/
modules/ search/ src/ Plugin/ Derivative/ SearchLocalTask.php - SystemMenuBlock.php in core/
modules/ system/ src/ Plugin/ Derivative/ SystemMenuBlock.php - TestDataTypeDeriver.php in core/
tests/ Drupal/ Tests/ Core/ Plugin/ Fixtures/ Plugin/ DataType/ TestDataTypeDeriver.php - ThemeLocalTask.php in core/
modules/ block/ src/ Plugin/ Derivative/ ThemeLocalTask.php - ThemeLocalTask.php in core/
modules/ system/ src/ Plugin/ Derivative/ ThemeLocalTask.php - ViewsEntityArgumentValidator.php in core/
modules/ views/ src/ Plugin/ Derivative/ ViewsEntityArgumentValidator.php - ViewsLocalTask.php in core/
modules/ views/ src/ Plugin/ Derivative/ ViewsLocalTask.php - ViewsMenuLink.php in core/
modules/ views/ src/ Plugin/ Derivative/ ViewsMenuLink.php