fix generate

src/Illuminate/Foundation/Console/EventGenerateCommand.php

@@ -29,7 +29,9 @@ class EventGenerateCommand extends Command
      */
     public function handle()
     {
-        $provider = $this->laravel->getProvider(EventServiceProvider::class);
+        $this->makeDynamicListeners(
+            $provider = $this->laravel->getProvider(EventServiceProvider::class)
+        );
 
         foreach ($provider->listens() as $event => $listeners) {
             $this->makeEventAndListeners($event, $listeners);
@@ -38,6 +40,27 @@ public function handle()
         $this->info('Events and listeners generated successfully!');
     }
 
+    /**
+     * Generate the dynamic listeners which have "hears" properties.
+     *
+     * @param  object  $provider
+     * @return void
+     */
+    protected function makeDynamicListeners($provider)
+    {
+        foreach ($provider->listeners() as $listener) {
+            if (! class_exists($listener)) {
+                $this->makeListeners(null, [$listener]);
+
+                continue;
+            }
+
+            foreach ($listener::$hears as $event) {
+                $this->makeEventAndListeners($event, [$listener]);
+            }
+        }
+    }
+
     /**
      * Make the event and listeners for the given event.
      *
@@ -68,7 +91,9 @@ protected function makeListeners($event, $listeners)
         foreach ($listeners as $listener) {
             $listener = preg_replace('/@.+$/', '', $listener);
 
-            $this->callSilent('make:listener', ['name' => $listener, '--event' => $event]);
+            $this->callSilent('make:listener', array_filter(
+                ['name' => $listener, '--event' => $event]
+            ));
         }
     }
 }

src/Illuminate/Foundation/Console/ListenerMakeCommand.php

@@ -29,20 +29,6 @@ class ListenerMakeCommand extends GeneratorCommand
      */
     protected $type = 'Listener';
 
-    /**
-     * Execute the console command.
-     *
-     * @return void
-     */
-    public function handle()
-    {
-        if (! $this->option('event')) {
-            return $this->error('Missing required option: --event');
-        }
-
-        parent::handle();
-    }
-
     /**
      * Build the class with the given name.
      *
@@ -78,9 +64,13 @@ protected function buildClass($name)
     protected function getStub()
     {
         if ($this->option('queued')) {
-            return __DIR__.'/stubs/listener-queued.stub';
+            return $this->option('event')
+                        ? __DIR__.'/stubs/listener-queued.stub'
+                        : __DIR__.'/stubs/listener-queued-duck.stub';
         } else {
-            return __DIR__.'/stubs/listener.stub';
+            return $this->option('event')
+                        ? __DIR__.'/stubs/listener.stub'
+                        : __DIR__.'/stubs/listener-duck.stub';
         }
     }
 
@@ -114,7 +104,7 @@ protected function getDefaultNamespace($rootNamespace)
     protected function getOptions()
     {
         return [
-            ['event', 'e', InputOption::VALUE_REQUIRED, 'The event class being listened for.'],
+            ['event', 'e', InputOption::VALUE_OPTIONAL, 'The event class being listened for.'],
 
             ['queued', null, InputOption::VALUE_NONE, 'Indicates the event listener should be queued.'],
         ];

src/Illuminate/Foundation/Console/stubs/listener-duck.stub

@@ -0,0 +1,39 @@
+<?php
+
+namespace DummyNamespace;
+
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class DummyClass
+{
+    /**
+     * The events handled by the listener.
+     *
+     * @var array
+     */
+    public static $hears = [
+        //
+    ];
+
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle($event)
+    {
+        //
+    }
+}

src/Illuminate/Foundation/Console/stubs/listener-queued-duck.stub.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace DummyNamespace;
+
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class DummyClass implements ShouldQueue
+{
+    use InteractsWithQueue;
+
+    /**
+     * The events handled by the listener.
+     *
+     * @var array
+     */
+    public static $hears = [
+        //
+    ];
+
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle($event)
+    {
+        //
+    }
+}

src/Illuminate/Foundation/Support/Providers/EventServiceProvider.php

@@ -14,6 +14,13 @@ class EventServiceProvider extends ServiceProvider
      */
     protected $listen = [];
 
+    /**
+     * The event listeners for the application.
+     *
+     * @var array
+     */
+    protected $listeners = [];
+
     /**
      * The subscriber classes to register.
      *
@@ -54,12 +61,24 @@ public function register()
      */
     public function listens()
     {
-        return array_merge_recursive(collect($this->listeners)->flatMap(function ($listener) {
+        return array_merge_recursive(collect($this->listeners)->filter(function ($listener) {
+            return class_exists($listener, false);
+        })->flatMap(function ($listener) {
             return collect($listener::$hears)->map(function ($event) use ($listener) {
                 return ['event' => $event, 'listeners' => [$listener]];
             })->all();
         })->groupBy('event')->map(function ($listeners) {
             return $listeners->pluck('listeners')->flatten(1)->all();
         })->all(), $this->listen);
     }
+
+    /**
+     * Get all of the registered listeners.
+     *
+     * @return array
+     */
+    public function listeners()
+    {
+        return $this->listeners;
+    }
 }