Example: convert implicit nullable parameters

src/Illuminate/Auth/Access/AuthorizationException.php

@@ -29,7 +29,7 @@ class AuthorizationException extends Exception
      * @param  \Throwable|null  $previous
      * @return void
      */
-    public function __construct($message = null, $code = null, Throwable $previous = null)
+    public function __construct($message = null, $code = null, ?Throwable $previous = null)
     {
         parent::__construct($message ?? 'This action is unauthorized.', 0, $previous);
 

src/Illuminate/Auth/Access/Gate.php

@@ -100,7 +100,7 @@ public function __construct(Container $container,
         array $policies = [],
         array $beforeCallbacks = [],
         array $afterCallbacks = [],
-        callable $guessPolicyNamesUsingCallback = null)
+        ?callable $guessPolicyNamesUsingCallback = null)
     {
         $this->policies = $policies;
         $this->container = $container;
@@ -224,7 +224,7 @@ public function define($ability, $callback)
      * @param  array|null  $abilities
      * @return $this
      */
-    public function resource($name, $class, array $abilities = null)
+    public function resource($name, $class, ?array $abilities = null)
     {
         $abilities = $abilities ?: [
             'viewAny' => 'viewAny',

src/Illuminate/Auth/Passwords/PasswordBroker.php

@@ -45,7 +45,7 @@ public function __construct(TokenRepositoryInterface $tokens, UserProvider $user
      * @param  \Closure|null  $callback
      * @return string
      */
-    public function sendResetLink(array $credentials, Closure $callback = null)
+    public function sendResetLink(array $credentials, ?Closure $callback = null)
     {
         // First we will check to see if we found a user at the given credentials and
         // if we did not we will redirect back to this current URI with a piece of

src/Illuminate/Auth/RequestGuard.php

@@ -33,7 +33,7 @@ class RequestGuard implements Guard
      * @param  \Illuminate\Contracts\Auth\UserProvider|null  $provider
      * @return void
      */
-    public function __construct(callable $callback, Request $request, UserProvider $provider = null)
+    public function __construct(callable $callback, Request $request, ?\Illuminate\Contracts\Auth\UserProvider $provider = null)
     {
         $this->request = $request;
         $this->callback = $callback;

src/Illuminate/Auth/SessionGuard.php

@@ -131,8 +131,8 @@ class SessionGuard implements StatefulGuard, SupportsBasicAuth
     public function __construct($name,
                                 UserProvider $provider,
                                 Session $session,
-                                Request $request = null,
-                                Timebox $timebox = null,
+                                ?\Symfony\Component\HttpFoundation\Request $request = null,
+                                ?\Illuminate\Support\Timebox $timebox = null,
                                 bool $rehashOnLogin = true)
     {
         $this->name = $name;

src/Illuminate/Broadcasting/BroadcastManager.php

@@ -64,7 +64,7 @@ public function __construct($app)
      * @param  array|null  $attributes
      * @return void
      */
-    public function routes(array $attributes = null)
+    public function routes(?array $attributes = null)
     {
         if ($this->app instanceof CachesRoutes && $this->app->routesAreCached()) {
             return;
@@ -86,7 +86,7 @@ public function routes(array $attributes = null)
      * @param  array|null  $attributes
      * @return void
      */
-    public function userRoutes(array $attributes = null)
+    public function userRoutes(?array $attributes = null)
     {
         if ($this->app instanceof CachesRoutes && $this->app->routesAreCached()) {
             return;
@@ -110,7 +110,7 @@ public function userRoutes(array $attributes = null)
      * @param  array|null  $attributes
      * @return void
      */
-    public function channelRoutes(array $attributes = null)
+    public function channelRoutes(?array $attributes = null)
     {
         $this->routes($attributes);
     }

src/Illuminate/Bus/Batch.php

@@ -450,7 +450,7 @@ public function delete()
      * @param  \Throwable|null  $e
      * @return void
      */
-    protected function invokeHandlerCallback($handler, Batch $batch, Throwable $e = null)
+    protected function invokeHandlerCallback($handler, Batch $batch, ?Throwable $e = null)
     {
         try {
             return $handler($batch, $e);

src/Illuminate/Bus/Dispatcher.php

@@ -58,7 +58,7 @@ class Dispatcher implements QueueingDispatcher
      * @param  \Closure|null  $queueResolver
      * @return void
      */
-    public function __construct(Container $container, Closure $queueResolver = null)
+    public function __construct(Container $container, ?Closure $queueResolver = null)
     {
         $this->container = $container;
         $this->queueResolver = $queueResolver;

src/Illuminate/Cache/RedisTagSet.php

@@ -15,7 +15,7 @@ class RedisTagSet extends TagSet
      * @param  string  $updateWhen
      * @return void
      */
-    public function addEntry(string $key, int $ttl = null, $updateWhen = null)
+    public function addEntry(string $key, ?int $ttl = null, $updateWhen = null)
     {
         $ttl = is_null($ttl) ? -1 : Carbon::now()->addSeconds($ttl)->getTimestamp();
 

src/Illuminate/Collections/Arr.php

@@ -190,7 +190,7 @@ public static function exists($array, $key)
      * @param  TFirstDefault|(\Closure(): TFirstDefault)  $default
      * @return TValue|TFirstDefault
      */
-    public static function first($array, callable $callback = null, $default = null)
+    public static function first($array, ?callable $callback = null, $default = null)
     {
         if (is_null($callback)) {
             if (empty($array)) {
@@ -221,7 +221,7 @@ public static function first($array, callable $callback = null, $default = null)
      * @param  mixed  $default
      * @return mixed
      */
-    public static function last($array, callable $callback = null, $default = null)
+    public static function last($array, ?callable $callback = null, $default = null)
     {
         if (is_null($callback)) {
             return empty($array) ? value($default) : end($array);

src/Illuminate/Collections/Collection.php

@@ -381,7 +381,7 @@ public function except($keys)
      * @param  (callable(TValue, TKey): bool)|null  $callback
      * @return static
      */
-    public function filter(callable $callback = null)
+    public function filter(?callable $callback = null)
     {
         if ($callback) {
             return new static(Arr::where($this->items, $callback));
@@ -399,7 +399,7 @@ public function filter(callable $callback = null)
      * @param  TFirstDefault|(\Closure(): TFirstDefault)  $default
      * @return TValue|TFirstDefault
      */
-    public function first(callable $callback = null, $default = null)
+    public function first(?callable $callback = null, $default = null)
     {
         return Arr::first($this->items, $callback, $default);
     }
@@ -747,7 +747,7 @@ public function keys()
      * @param  TLastDefault|(\Closure(): TLastDefault)  $default
      * @return TValue|TLastDefault
      */
-    public function last(callable $callback = null, $default = null)
+    public function last(?callable $callback = null, $default = null)
     {
         return Arr::last($this->items, $callback, $default);
     }

src/Illuminate/Collections/Enumerable.php

@@ -38,7 +38,7 @@ public static function make($items = []);
      * @param  callable|null  $callback
      * @return static
      */
-    public static function times($number, callable $callback = null);
+    public static function times($number, ?callable $callback = null);
 
     /**
      * Create a collection with the given range.
@@ -297,7 +297,7 @@ public function except($keys);
      * @param  (callable(TValue): bool)|null  $callback
      * @return static
      */
-    public function filter(callable $callback = null);
+    public function filter(?callable $callback = null);
 
     /**
      * Apply the callback if the given "value" is (or resolves to) truthy.
@@ -309,7 +309,7 @@ public function filter(callable $callback = null);
      * @param  (callable($this): TWhenReturnType)|null  $default
      * @return $this|TWhenReturnType
      */
-    public function when($value, callable $callback = null, callable $default = null);
+    public function when($value, ?callable $callback = null, ?callable $default = null);
 
     /**
      * Apply the callback if the collection is empty.
@@ -320,7 +320,7 @@ public function when($value, callable $callback = null, callable $default = null
      * @param  (callable($this): TWhenEmptyReturnType)|null  $default
      * @return $this|TWhenEmptyReturnType
      */
-    public function whenEmpty(callable $callback, callable $default = null);
+    public function whenEmpty(callable $callback, ?callable $default = null);
 
     /**
      * Apply the callback if the collection is not empty.
@@ -331,7 +331,7 @@ public function whenEmpty(callable $callback, callable $default = null);
      * @param  (callable($this): TWhenNotEmptyReturnType)|null  $default
      * @return $this|TWhenNotEmptyReturnType
      */
-    public function whenNotEmpty(callable $callback, callable $default = null);
+    public function whenNotEmpty(callable $callback, ?callable $default = null);
 
     /**
      * Apply the callback if the given "value" is (or resolves to) truthy.
@@ -343,7 +343,7 @@ public function whenNotEmpty(callable $callback, callable $default = null);
      * @param  (callable($this): TUnlessReturnType)|null  $default
      * @return $this|TUnlessReturnType
      */
-    public function unless($value, callable $callback, callable $default = null);
+    public function unless($value, callable $callback, ?callable $default = null);
 
     /**
      * Apply the callback unless the collection is empty.
@@ -354,7 +354,7 @@ public function unless($value, callable $callback, callable $default = null);
      * @param  (callable($this): TUnlessEmptyReturnType)|null  $default
      * @return $this|TUnlessEmptyReturnType
      */
-    public function unlessEmpty(callable $callback, callable $default = null);
+    public function unlessEmpty(callable $callback, ?callable $default = null);
 
     /**
      * Apply the callback unless the collection is not empty.
@@ -365,7 +365,7 @@ public function unlessEmpty(callable $callback, callable $default = null);
      * @param  (callable($this): TUnlessNotEmptyReturnType)|null  $default
      * @return $this|TUnlessNotEmptyReturnType
      */
-    public function unlessNotEmpty(callable $callback, callable $default = null);
+    public function unlessNotEmpty(callable $callback, ?callable $default = null);
 
     /**
      * Filter items by the given key value pair.
@@ -477,7 +477,7 @@ public function whereInstanceOf($type);
      * @param  TFirstDefault|(\Closure(): TFirstDefault)  $default
      * @return TValue|TFirstDefault
      */
-    public function first(callable $callback = null, $default = null);
+    public function first(?callable $callback = null, $default = null);
 
     /**
      * Get the first item by the given key value pair.
@@ -645,7 +645,7 @@ public function keys();
      * @param  TLastDefault|(\Closure(): TLastDefault)  $default
      * @return TValue|TLastDefault
      */
-    public function last(callable $callback = null, $default = null);
+    public function last(?callable $callback = null, $default = null);
 
     /**
      * Run a map over each of the items.

src/Illuminate/Collections/LazyCollection.php

@@ -428,7 +428,7 @@ public function except($keys)
      * @param  (callable(TValue, TKey): bool)|null  $callback
      * @return static
      */
-    public function filter(callable $callback = null)
+    public function filter(?callable $callback = null)
     {
         if (is_null($callback)) {
             $callback = fn ($value) => (bool) $value;
@@ -452,7 +452,7 @@ public function filter(callable $callback = null)
      * @param  TFirstDefault|(\Closure(): TFirstDefault)  $default
      * @return TValue|TFirstDefault
      */
-    public function first(callable $callback = null, $default = null)
+    public function first(?callable $callback = null, $default = null)
     {
         $iterator = $this->getIterator();
 
@@ -732,7 +732,7 @@ public function keys()
      * @param  TLastDefault|(\Closure(): TLastDefault)  $default
      * @return TValue|TLastDefault
      */
-    public function last(callable $callback = null, $default = null)
+    public function last(?callable $callback = null, $default = null)
     {
         $needle = $placeholder = new stdClass;
 

src/Illuminate/Collections/Traits/EnumeratesValues.php

@@ -163,7 +163,7 @@ public static function empty()
      * @param  (callable(int): TTimesValue)|null  $callback
      * @return static<int, TTimesValue>
      */
-    public static function times($number, callable $callback = null)
+    public static function times($number, ?callable $callback = null)
     {
         if ($number < 1) {
             return new static;
@@ -530,7 +530,7 @@ public function sum($callback = null)
      * @param  (callable($this): TWhenEmptyReturnType)|null  $default
      * @return $this|TWhenEmptyReturnType
      */
-    public function whenEmpty(callable $callback, callable $default = null)
+    public function whenEmpty(callable $callback, ?callable $default = null)
     {
         return $this->when($this->isEmpty(), $callback, $default);
     }
@@ -544,7 +544,7 @@ public function whenEmpty(callable $callback, callable $default = null)
      * @param  (callable($this): TWhenNotEmptyReturnType)|null  $default
      * @return $this|TWhenNotEmptyReturnType
      */
-    public function whenNotEmpty(callable $callback, callable $default = null)
+    public function whenNotEmpty(callable $callback, ?callable $default = null)
     {
         return $this->when($this->isNotEmpty(), $callback, $default);
     }
@@ -558,7 +558,7 @@ public function whenNotEmpty(callable $callback, callable $default = null)
      * @param  (callable($this): TUnlessEmptyReturnType)|null  $default
      * @return $this|TUnlessEmptyReturnType
      */
-    public function unlessEmpty(callable $callback, callable $default = null)
+    public function unlessEmpty(callable $callback, ?callable $default = null)
     {
         return $this->whenNotEmpty($callback, $default);
     }
@@ -572,7 +572,7 @@ public function unlessEmpty(callable $callback, callable $default = null)
      * @param  (callable($this): TUnlessNotEmptyReturnType)|null  $default
      * @return $this|TUnlessNotEmptyReturnType
      */
-    public function unlessNotEmpty(callable $callback, callable $default = null)
+    public function unlessNotEmpty(callable $callback, ?callable $default = null)
     {
         return $this->whenEmpty($callback, $default);
     }

src/Illuminate/Conditionable/Traits/Conditionable.php

@@ -18,7 +18,7 @@ trait Conditionable
      * @param  (callable($this, TWhenParameter): TWhenReturnType)|null  $default
      * @return $this|TWhenReturnType
      */
-    public function when($value = null, callable $callback = null, callable $default = null)
+    public function when($value = null, ?callable $callback = null, ?callable $default = null)
     {
         $value = $value instanceof Closure ? $value($this) : $value;
 
@@ -50,7 +50,7 @@ public function when($value = null, callable $callback = null, callable $default
      * @param  (callable($this, TUnlessParameter): TUnlessReturnType)|null  $default
      * @return $this|TUnlessReturnType
      */
-    public function unless($value = null, callable $callback = null, callable $default = null)
+    public function unless($value = null, ?callable $callback = null, ?callable $default = null)
     {
         $value = $value instanceof Closure ? $value($this) : $value;
 

src/Illuminate/Container/Container.php

@@ -1140,7 +1140,7 @@ protected function unresolvablePrimitive(ReflectionParameter $parameter)
      * @param  \Closure|null  $callback
      * @return void
      */
-    public function beforeResolving($abstract, Closure $callback = null)
+    public function beforeResolving($abstract, ?Closure $callback = null)
     {
         if (is_string($abstract)) {
             $abstract = $this->getAlias($abstract);
@@ -1160,7 +1160,7 @@ public function beforeResolving($abstract, Closure $callback = null)
      * @param  \Closure|null  $callback
      * @return void
      */
-    public function resolving($abstract, Closure $callback = null)
+    public function resolving($abstract, ?Closure $callback = null)
     {
         if (is_string($abstract)) {
             $abstract = $this->getAlias($abstract);
@@ -1180,7 +1180,7 @@ public function resolving($abstract, Closure $callback = null)
      * @param  \Closure|null  $callback
      * @return void
      */
-    public function afterResolving($abstract, Closure $callback = null)
+    public function afterResolving($abstract, ?Closure $callback = null)
     {
         if (is_string($abstract)) {
             $abstract = $this->getAlias($abstract);
@@ -1419,7 +1419,7 @@ public static function getInstance()
      * @param  \Illuminate\Contracts\Container\Container|null  $container
      * @return \Illuminate\Contracts\Container\Container|static
      */
-    public static function setInstance(ContainerContract $container = null)
+    public static function setInstance(?ContainerContract $container = null)
     {
         return static::$instance = $container;
     }

src/Illuminate/Contracts/Auth/Access/Gate.php

@@ -29,7 +29,7 @@ public function define($ability, $callback);
      * @param  array|null  $abilities
      * @return $this
      */
-    public function resource($name, $class, array $abilities = null);
+    public function resource($name, $class, ?array $abilities = null);
 
     /**
      * Define a policy class for a given class type.

src/Illuminate/Contracts/Auth/PasswordBroker.php

@@ -48,7 +48,7 @@ interface PasswordBroker
      * @param  \Closure|null  $callback
      * @return string
      */
-    public function sendResetLink(array $credentials, Closure $callback = null);
+    public function sendResetLink(array $credentials, ?Closure $callback = null);
 
     /**
      * Reset the password for the given token.