[PHPDoc] Fix some union type cases

src/Symfony/Bundle/SecurityBundle/DataCollector/SecurityDataCollector.php

@@ -389,7 +389,7 @@ class SecurityDataCollector extends DataCollector implements LateDataCollectorIn
     /**
      * Returns the configuration of the current firewall context.
      *
-     * @return array|Data
+     * @return array|Data|null
      */
     public function getFirewall()
     {

src/Symfony/Component/BrowserKit/Response.php

@@ -123,7 +123,7 @@ class Response
      * @param string $header The header name
      * @param bool   $first  Whether to return the first value or all header values
      *
-     * @return string|array The first header value if $first is true, an array of values otherwise
+     * @return string|array|null The first header value if $first is true, an array of values otherwise
      */
     public function getHeader($header, $first = true)
     {

src/Symfony/Component/Console/Descriptor/Descriptor.php

@@ -72,36 +72,26 @@ abstract class Descriptor implements DescriptorInterface
 
     /**
      * Describes an InputArgument instance.
-     *
-     * @return string|mixed
      */
     abstract protected function describeInputArgument(InputArgument $argument, array $options = []);
 
     /**
      * Describes an InputOption instance.
-     *
-     * @return string|mixed
      */
     abstract protected function describeInputOption(InputOption $option, array $options = []);
 
     /**
      * Describes an InputDefinition instance.
-     *
-     * @return string|mixed
      */
     abstract protected function describeInputDefinition(InputDefinition $definition, array $options = []);
 
     /**
      * Describes a Command instance.
-     *
-     * @return string|mixed
      */
     abstract protected function describeCommand(Command $command, array $options = []);
 
     /**
      * Describes an Application instance.
-     *
-     * @return string|mixed
      */
     abstract protected function describeApplication(Application $application, array $options = []);
 }

src/Symfony/Component/Console/Descriptor/TextDescriptor.php

@@ -298,7 +298,7 @@ class TextDescriptor extends Descriptor
     }
 
     /**
-     * @param (Command|string)[] $commands
+     * @param array<Command|string> $commands
      */
     private function getColumnWidth(array $commands): int
     {

src/Symfony/Component/Console/Helper/QuestionHelper.php

@@ -97,7 +97,7 @@ class QuestionHelper extends Helper
     /**
      * Asks the question to the user.
      *
-     * @return bool|mixed|string|null
+     * @return mixed
      *
      * @throws RuntimeException In case the fallback is deactivated and the response cannot be hidden
      */

src/Symfony/Component/Form/Extension/Validator/Constraints/FormValidator.php

@@ -202,7 +202,7 @@ class FormValidator extends ConstraintValidator
     /**
      * Returns the validation groups of the given form.
      *
-     * @return string|GroupSequence|(string|GroupSequence)[] The validation groups
+     * @return string|GroupSequence|array<string|GroupSequence> The validation groups
      */
     private function getValidationGroups(FormInterface $form)
     {
@@ -241,9 +241,9 @@ class FormValidator extends ConstraintValidator
     /**
      * Post-processes the validation groups option for a given form.
      *
-     * @param string|GroupSequence|(string|GroupSequence)[]|callable $groups The validation groups
+     * @param string|GroupSequence|array<string|GroupSequence>|callable $groups The validation groups
      *
-     * @return GroupSequence|(string|GroupSequence)[] The validation groups
+     * @return GroupSequence|array<string|GroupSequence> The validation groups
      */
     private static function resolveValidationGroups($groups, FormInterface $form)
     {

src/Symfony/Component/HttpFoundation/HeaderBag.php

@@ -255,7 +255,7 @@ class HeaderBag implements \IteratorAggregate, \Countable
      *
      * @param string $key The directive name
      *
-     * @return mixed|null The directive value if defined, null otherwise
+     * @return mixed The directive value if defined, null otherwise
      */
     public function getCacheControlDirective($key)
     {

src/Symfony/Component/Mailer/EventListener/EnvelopeListener.php

@@ -27,8 +27,8 @@ class EnvelopeListener implements EventSubscriberInterface
     private $recipients;
 
     /**
-     * @param Address|string     $sender
+     * @param Address|string        $sender
-     * @param (Address|string)[] $recipients
+     * @param array<Address|string> $recipients
      */
     public function __construct($sender = null, array $recipients = null)
     {

src/Symfony/Component/Messenger/Command/AbstractFailedMessagesCommand.php

@@ -45,7 +45,7 @@ abstract class AbstractFailedMessagesCommand extends Command
     }
 
     /**
-     * @return mixed|null
+     * @return mixed
      */
     protected function getMessageId(Envelope $envelope)
     {

src/Symfony/Component/Mime/Address.php

@@ -106,7 +106,7 @@ final class Address
     }
 
     /**
-     * @param (Address|string)[] $addresses
+     * @param array<Address|string> $addresses
      *
      * @return Address[]
      */

src/Symfony/Component/Mime/Header/Headers.php

@@ -59,7 +59,7 @@ final class Headers
     }
 
     /**
-     * @param (Address|string)[] $addresses
+     * @param array<Address|string> $addresses
      *
      * @return $this
      */

src/Symfony/Component/Mime/Part/Multipart/FormDataPart.php

@@ -26,7 +26,7 @@ final class FormDataPart extends AbstractMultipartPart
     private $fields = [];
 
     /**
-     * @param (string|array|DataPart)[] $fields
+     * @param array<string|array|DataPart> $fields
      */
     public function __construct(array $fields = [])
     {

src/Symfony/Component/Process/Process.php

@@ -132,7 +132,7 @@ class Process implements \IteratorAggregate
      * @param array          $command The command to run and its arguments listed as separate entries
      * @param string|null    $cwd     The working directory or null to use the working dir of the current PHP process
      * @param array|null     $env     The environment variables or null to use the same environment as the current PHP process
-     * @param mixed|null     $input   The input as stream resource, scalar or \Traversable, or null for no input
+     * @param mixed          $input   The input as stream resource, scalar or \Traversable, or null for no input
      * @param int|float|null $timeout The timeout in seconds or null to disable
      *
      * @throws LogicException When proc_open is not installed
@@ -183,7 +183,7 @@ class Process implements \IteratorAggregate
      * @param string         $command The command line to pass to the shell of the OS
      * @param string|null    $cwd     The working directory or null to use the working dir of the current PHP process
      * @param array|null     $env     The environment variables or null to use the same environment as the current PHP process
-     * @param mixed|null     $input   The input as stream resource, scalar or \Traversable, or null for no input
+     * @param mixed          $input   The input as stream resource, scalar or \Traversable, or null for no input
      * @param int|float|null $timeout The timeout in seconds or null to disable
      *
      * @return static

src/Symfony/Component/Routing/Loader/XmlFileLoader.php

@@ -370,7 +370,7 @@ class XmlFileLoader extends FileLoader
     /**
      * Recursively parses the value of a "default" element.
      *
-     * @return array|bool|float|int|string The parsed value
+     * @return array|bool|float|int|string|null The parsed value
      *
      * @throws \InvalidArgumentException when the XML is invalid
      */

src/Symfony/Component/Security/Core/User/UserInterface.php

@@ -44,7 +44,7 @@ interface UserInterface
      * and populated in any number of different ways when the user object
      * is created.
      *
-     * @return (Role|string)[] The user roles
+     * @return array<Role|string> The user roles
      */
     public function getRoles();
 

src/Symfony/Component/Serializer/Serializer.php

@@ -66,8 +66,8 @@ class Serializer implements SerializerInterface, ContextAwareNormalizerInterface
     private $normalizerCache = [];
 
     /**
-     * @param (NormalizerInterface|DenormalizerInterface)[] $normalizers
+     * @param array<NormalizerInterface|DenormalizerInterface> $normalizers
-     * @param (EncoderInterface|DecoderInterface)[]         $encoders
+     * @param array<EncoderInterface|DecoderInterface>         $encoders
      */
     public function __construct(array $normalizers = [], array $encoders = [])
     {

src/Symfony/Component/Validator/Validator/ContextualValidatorInterface.php

@@ -40,9 +40,9 @@ interface ContextualValidatorInterface
      * If no constraint is passed, the constraint
      * {@link \Symfony\Component\Validator\Constraints\Valid} is assumed.
      *
-     * @param mixed                                              $value       The value to validate
+     * @param mixed                                                 $value       The value to validate
-     * @param Constraint|Constraint[]                            $constraints The constraint(s) to validate against
+     * @param Constraint|Constraint[]                               $constraints The constraint(s) to validate against
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups      The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups      The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return $this
      */
@@ -52,9 +52,9 @@ interface ContextualValidatorInterface
      * Validates a property of an object against the constraints specified
      * for this property.
      *
-     * @param object                                             $object       The object
+     * @param object                                                $object       The object
-     * @param string                                             $propertyName The name of the validated property
+     * @param string                                                $propertyName The name of the validated property
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups       The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups       The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return $this
      */
@@ -64,10 +64,10 @@ interface ContextualValidatorInterface
      * Validates a value against the constraints specified for an object's
      * property.
      *
-     * @param object|string                                      $objectOrClass The object or its class name
+     * @param object|string                                         $objectOrClass The object or its class name
-     * @param string                                             $propertyName  The name of the property
+     * @param string                                                $propertyName  The name of the property
-     * @param mixed                                              $value         The value to validate against the property's constraints
+     * @param mixed                                                 $value         The value to validate against the property's constraints
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups        The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups        The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return $this
      */

src/Symfony/Component/Validator/Validator/RecursiveContextualValidator.php

@@ -271,9 +271,9 @@ class RecursiveContextualValidator implements ContextualValidatorInterface
     /**
      * Normalizes the given group or list of groups to an array.
      *
-     * @param string|GroupSequence|(string|GroupSequence)[] $groups The groups to normalize
+     * @param string|GroupSequence|array<string|GroupSequence> $groups The groups to normalize
      *
-     * @return (string|GroupSequence)[] A group array
+     * @return array<string|GroupSequence> A group array
      */
     protected function normalizeGroups($groups)
     {

src/Symfony/Component/Validator/Validator/ValidatorInterface.php

@@ -30,9 +30,9 @@ interface ValidatorInterface extends MetadataFactoryInterface
      * If no constraint is passed, the constraint
      * {@link \Symfony\Component\Validator\Constraints\Valid} is assumed.
      *
-     * @param mixed                                              $value       The value to validate
+     * @param mixed                                                 $value       The value to validate
-     * @param Constraint|Constraint[]                            $constraints The constraint(s) to validate against
+     * @param Constraint|Constraint[]                               $constraints The constraint(s) to validate against
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups      The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups      The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return ConstraintViolationListInterface A list of constraint violations
      *                                          If the list is empty, validation
@@ -44,9 +44,9 @@ interface ValidatorInterface extends MetadataFactoryInterface
      * Validates a property of an object against the constraints specified
      * for this property.
      *
-     * @param object                                             $object       The object
+     * @param object                                                $object       The object
-     * @param string                                             $propertyName The name of the validated property
+     * @param string                                                $propertyName The name of the validated property
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups       The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups       The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return ConstraintViolationListInterface A list of constraint violations
      *                                          If the list is empty, validation
@@ -58,10 +58,10 @@ interface ValidatorInterface extends MetadataFactoryInterface
      * Validates a value against the constraints specified for an object's
      * property.
      *
-     * @param object|string                                      $objectOrClass The object or its class name
+     * @param object|string                                         $objectOrClass The object or its class name
-     * @param string                                             $propertyName  The name of the property
+     * @param string                                                $propertyName  The name of the property
-     * @param mixed                                              $value         The value to validate against the property's constraints
+     * @param mixed                                                 $value         The value to validate against the property's constraints
-     * @param string|GroupSequence|(string|GroupSequence)[]|null $groups        The validation groups to validate. If none is given, "Default" is assumed
+     * @param string|GroupSequence|array<string|GroupSequence>|null $groups        The validation groups to validate. If none is given, "Default" is assumed
      *
      * @return ConstraintViolationListInterface A list of constraint violations
      *                                          If the list is empty, validation

src/Symfony/Contracts/HttpClient/ResponseInterface.php

@@ -97,15 +97,15 @@ interface ResponseInterface
      *  - response_headers (array) - an array modelled after the special $http_response_header variable
      *  - start_time (float) - the time when the request was sent or 0.0 when it's pending
      *  - url (string) - the last effective URL of the request
-     *  - user_data (mixed|null) - the value of the "user_data" request option, null if not set
+     *  - user_data (mixed) - the value of the "user_data" request option, null if not set
      *
      * When the "capture_peer_cert_chain" option is true, the "peer_certificate_chain"
      * attribute SHOULD list the peer certificates as an array of OpenSSL X.509 resources.
      *
      * Other info SHOULD be named after curl_getinfo()'s associative return value.
      *
-     * @return array|mixed|null An array of all available info, or one of them when $type is
+     * @return array|mixed An array of all available info, or one of them when $type is
-     *                          provided, or null when an unsupported type is requested
+     *                     provided, or null when an unsupported type is requested
      */
     public function getInfo(string $type = null);
 }