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Title	Object type	File name	Summary
FileWidget::validateMultipleCount	function	core/modules/file/src/Plugin/Field/FieldWidget/FileWidget.php	Form element validation callback for upload element on file widget. Checks if user has uploaded more files than allowed.
file_stream_wrapper_valid_scheme	function	core/includes/file.inc	Checks that the scheme of a stream URI is valid.
file_test_file_validate	function	core/modules/file/tests/file_test/file_test.module	Implements hook_file_validate().
file_test_validator	function	core/modules/file/tests/file_test/file_test.module	Helper validator that returns the $errors parameter.
file_validate	function	core/modules/file/file.module	Checks that a file meets the criteria specified by the validators.
file_validate_extensions	function	core/modules/file/file.module	Checks that the filename ends with an allowed extension.
file_validate_image_resolution	function	core/modules/file/file.module	Verifies that image dimensions are within the specified maximum and minimum.
file_validate_is_image	function	core/modules/file/file.module	Checks that the file is recognized as a valid image.
file_validate_name_length	function	core/modules/file/file.module	Checks for files with names longer than can be stored in the database.
file_validate_size	function	core/modules/file/file.module	Checks that the file's size is below certain limits.
file_valid_uri	function	core/includes/file.inc	Determines whether the URI has a valid scheme for file API operations.
filter.uninstall_validator	service	core/modules/filter/filter.services.yml	Drupal\filter\FilterUninstallValidator
FilterDateTest::_testUiValidation	function	core/modules/views/tests/src/Functional/Handler/FilterDateTest.php	Make sure the validation callbacks works.
FilterFormatFormBase::validateForm	function	core/modules/filter/src/FilterFormatFormBase.php	Form validation handler.
FilterPluginBase::buildGroupValidate	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validate the build group options form.
FilterPluginBase::hasValidGroupedValue	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Determines if the given grouped filter entry has a valid value.
FilterPluginBase::operatorValidate	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validate the operator form.
FilterPluginBase::validate	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validate that the plugin is correct and can be saved.
FilterPluginBase::validateExposeForm	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validate the options form.
FilterPluginBase::validateIdentifier	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validates a filter identifier.
FilterPluginBase::validateOptionsForm	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Simple validate handler
FilterPluginBase::valueValidate	function	core/modules/views/src/Plugin/views/filter/FilterPluginBase.php	Validate the options form.
FilterTest::testInvalidFilterPathDueMissingMetaPrefixReferenceFieldWithMetaProperties	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterTest::testInvalidFilterPathDueToElidedSoleProperty	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterTest::testInvalidFilterPathDueToMissingPropertyName	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterTest::testInvalidFilterPathDueToMissingPropertyNameReferenceFieldWithMetaProperties	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterTest::testInvalidFilterPathDueToMissingPropertyNameReferenceFieldWithoutMetaProperties	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterTest::testInvalidFilterPathDueToNonexistentProperty	function	core/modules/jsonapi/tests/src/Kernel/Query/FilterTest.php	@covers ::queryCondition
FilterUninstallValidator	class	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	Provides a proxy class for \Drupal\filter\FilterUninstallValidator.
FilterUninstallValidator	class	core/modules/filter/src/FilterUninstallValidator.php	Prevents uninstallation of modules providing used filter plugins.
FilterUninstallValidator.php	file	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php
FilterUninstallValidator.php	file	core/modules/filter/src/FilterUninstallValidator.php
FilterUninstallValidator::$container	property	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	The service container.
FilterUninstallValidator::$drupalProxyOriginalServiceId	property	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	The id of the original proxied service.
FilterUninstallValidator::$filterManager	property	core/modules/filter/src/FilterUninstallValidator.php	The filter plugin manager.
FilterUninstallValidator::$filterStorage	property	core/modules/filter/src/FilterUninstallValidator.php	The filter entity storage.
FilterUninstallValidator::$service	property	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	The real proxied service, after it was lazy loaded.
FilterUninstallValidator::getEnabledFilterFormats	function	core/modules/filter/src/FilterUninstallValidator.php	Returns all enabled filter formats.
FilterUninstallValidator::getFilterDefinitionsByProvider	function	core/modules/filter/src/FilterUninstallValidator.php	Returns all filter definitions that are provided by the specified provider.
FilterUninstallValidator::lazyLoadItself	function	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	Lazy loads the real service from the container.
FilterUninstallValidator::setStringTranslation	function	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php
FilterUninstallValidator::validate	function	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	Determines the reasons a module can not be uninstalled.
FilterUninstallValidator::validate	function	core/modules/filter/src/FilterUninstallValidator.php	Determines the reasons a module can not be uninstalled.
FilterUninstallValidator::__construct	function	core/modules/filter/src/ProxyClass/FilterUninstallValidator.php	Constructs a ProxyClass Drupal proxy object.
FilterUninstallValidator::__construct	function	core/modules/filter/src/FilterUninstallValidator.php	Constructs a new FilterUninstallValidator.
FilterUninstallValidatorTest	class	core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php	@coversDefaultClass \Drupal\filter\FilterUninstallValidator @group filter
FilterUninstallValidatorTest.php	file	core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php
FilterUninstallValidatorTest::$filterUninstallValidator	property	core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php
FilterUninstallValidatorTest::setUp	function	core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php
FilterUninstallValidatorTest::testValidateNoFormats	function	core/modules/filter/tests/src/Unit/FilterUninstallValidatorTest.php	@covers ::validate

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