Replace implicit nullable types in parameter declarations

demo/bootstrap.php

@@ -20,7 +20,7 @@
 // $debugbar->setStorage(new DebugBar\Storage\RedisStorage(new Predis\Client()));
 // $debugbarRenderer->setOpenHandlerUrl('open.php');
 
-function render_demo_page(Closure $callback = null)
+function render_demo_page(?Closure $callback = null)
 {
  global $debugbarRenderer;
 ?>

src/DebugBar/Bridge/CacheCacheCollector.php

@@ -38,7 +38,7 @@ class CacheCacheCollector extends MonologCollector
  * @param bool $level
  * @param bool $bubble
  */
- public function __construct(Cache $cache = null, Logger $logger = null, $level = Logger::DEBUG, $bubble = true)
+ public function __construct(?Cache $cache = null, ?Logger $logger = null, $level = Logger::DEBUG, $bubble = true)
  {
  parent::__construct(null, $level, $bubble);
 

src/DebugBar/Bridge/MonologCollector.php

@@ -37,7 +37,7 @@ class MonologCollector extends AbstractProcessingHandler implements DataCollecto
  * @param boolean $bubble
  * @param string $name
  */
- public function __construct(Logger $logger = null, $level = Logger::DEBUG, $bubble = true, $name = 'monolog')
+ public function __construct(?Logger $logger = null, $level = Logger::DEBUG, $bubble = true, $name = 'monolog')
  {
  parent::__construct($level, $bubble);
  $this->name = $name;

src/DebugBar/Bridge/PropelCollector.php

@@ -49,7 +49,7 @@ class PropelCollector extends DataCollector implements BasicLogger, Renderable,
  *
  * @param PropelConfiguration $config Apply profiling on a specific config
  */
- public static function enablePropelProfiling(PropelConfiguration $config = null)
+ public static function enablePropelProfiling(?PropelConfiguration $config = null)
  {
  if ($config === null) {
  $config = Propel::getConfiguration(PropelConfiguration::TYPE_OBJECT);
@@ -74,7 +74,7 @@ public static function enablePropelProfiling(PropelConfiguration $config = null)
  * @param LoggerInterface $logger A logger to forward non-query log lines to
  * @param PropelPDO $conn Bound this collector to a connection only
  */
- public function __construct(LoggerInterface $logger = null, PropelPDO $conn = null)
+ public function __construct(?LoggerInterface $logger = null, ?PropelPDO $conn = null)
  {
  if ($conn) {
  $conn->setLogger($this);

src/DebugBar/Bridge/Twig/TimeableTwigExtensionProfiler.php

@@ -36,7 +36,7 @@ public function setTimeDataCollector(TimeDataCollector $timeDataCollector)
  $this->timeDataCollector = $timeDataCollector;
  }
 
- public function __construct(Profile $profile, TimeDataCollector $timeDataCollector = null)
+ public function __construct(Profile $profile, ?TimeDataCollector $timeDataCollector = null)
  {
  parent::__construct($profile);
 

src/DebugBar/Bridge/Twig/TraceableTwigEnvironment.php

@@ -24,7 +24,7 @@
 
 /**
  * Wrapped a Twig Environment to provide profiling features
- * 
+ *
  * @deprecated
  */
 class TraceableTwigEnvironment extends Twig_Environment
@@ -39,7 +39,7 @@ class TraceableTwigEnvironment extends Twig_Environment
  * @param Twig_Environment $twig
  * @param TimeDataCollector $timeDataCollector
  */
- public function __construct(Twig_Environment $twig, TimeDataCollector $timeDataCollector = null)
+ public function __construct(Twig_Environment $twig, ?TimeDataCollector $timeDataCollector = null)
  {
  $this->twig = $twig;
  $this->timeDataCollector = $timeDataCollector;

src/DebugBar/DataCollector/PDO/PDOCollector.php

@@ -26,7 +26,7 @@ class PDOCollector extends DataCollector implements Renderable, AssetProvider
  * @param \PDO $pdo
  * @param TimeDataCollector $timeCollector
  */
- public function __construct(\PDO $pdo = null, TimeDataCollector $timeCollector = null)
+ public function __construct(?\PDO $pdo = null, ?TimeDataCollector $timeCollector = null)
  {
  $this->timeCollector = $timeCollector;
  if ($pdo !== null) {
@@ -138,7 +138,7 @@ public function collect()
  * @param string|null $connectionName the pdo connection (eg default | read | write)
  * @return array
  */
- protected function collectPDO(TraceablePDO $pdo, TimeDataCollector $timeCollector = null, $connectionName = null)
+ protected function collectPDO(TraceablePDO $pdo, ?TimeDataCollector $timeCollector = null, $connectionName = null)
  {
  if (empty($connectionName) || $connectionName == 'default') {
  $connectionName = 'pdo';

src/DebugBar/DataCollector/PDO/TracedStatement.php

@@ -57,7 +57,7 @@ public function start($startTime = null, $startMemory = null) : void
  * @param float $endTime
  * @param int $endMemory
  */
- public function end(\Exception $exception = null, int $rowCount = 0, float $endTime = null, int $endMemory = null) : void
+ public function end(?\Exception $exception = null, int $rowCount = 0, ?float $endTime = null, ?int $endMemory = null) : void
  {
  $this->endTime = $endTime ?: microtime(true);
  $this->duration = $this->endTime - $this->startTime;

src/DebugBar/DebugBar.php

@@ -146,7 +146,7 @@ public function getCurrentRequestId()
  * @param StorageInterface $storage
  * @return $this
  */
- public function setStorage(StorageInterface $storage = null)
+ public function setStorage(?StorageInterface $storage = null)
  {
  $this->storage = $storage;
  return $this;