refactoring closure reflection

Author: taylorotwell

src/Illuminate/Console/Scheduling/Event.php

@@ -13,12 +13,13 @@
 use Illuminate\Support\Carbon;
 use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Traits\Macroable;
+use Illuminate\Support\Traits\ReflectsClosures;
 use Psr\Http\Client\ClientExceptionInterface;
 use Symfony\Component\Process\Process;
 
 class Event
 {
-    use Macroable, ManagesFrequencies;
+    use Macroable, ManagesFrequencies, ReflectsClosures;
 
     /**
      * The command string.
@@ -812,12 +813,12 @@ public function onFailureWithOutput(Closure $callback, $onlyIfOutputExists = fal
      */
     protected function withOutputCallback(Closure $callback, $onlyIfOutputExists = false)
     {
-        return function () use ($callback, $onlyIfOutputExists) {
+        return function (Container $container) use ($callback, $onlyIfOutputExists) {
             $output = $this->output && file_exists($this->output) ? file_get_contents($this->output) : '';
 
             return $onlyIfOutputExists && empty($output)
                             ? null
-                            : $callback($output);
+                            : $container->call($callback, ['output' => $output]);
         };
     }
 

src/Illuminate/Support/Traits/ReflectsClosures.php

@@ -21,13 +21,13 @@ protected function closureParameterTypes(Closure $closure)
     {
         $reflection = new ReflectionFunction($closure);
 
-        return array_map(function (ReflectionParameter $parameter) {
+        return collect($reflection->getParameters())->mapWithKeys(function ($parameter) {
             if ($parameter->isVariadic()) {
-                return;
+                return [$parameter->getName() => null];
             }
 
-            return $parameter->getClass()->name ?? null;
-        }, $reflection->getParameters());
+            return [$parameter->getName() => $parameter->getClass()->name ?? null];
+        })->all();
     }
 
     /**
@@ -40,7 +40,7 @@ protected function closureParameterTypes(Closure $closure)
      */
     protected function firstClosureParameterType(Closure $closure)
     {
-        $types = $this->closureParameterTypes($closure);
+        $types = array_values($this->closureParameterTypes($closure));
 
         if (! $types) {
             throw new RuntimeException('The given Closure has no parameters.');

tests/Support/SupportReflectsClosuresTest.php

@@ -78,7 +78,7 @@ class ReflectsClosuresClass
 
     public static function reflect($closure)
     {
-        return (new static)->closureParameterTypes($closure);
+        return array_values((new static)->closureParameterTypes($closure));
     }
 
     public static function reflectFirst($closure)