[1.x] Flushes controller on route (#589)

* Flushes controller on route

* Adds test

* Adds memory leak tests

* Updates framework versions

Author: nunomaduro

composer.json

@@ -15,7 +15,7 @@
     ],
     "require": {
         "php": "^8.0",
-        "laravel/framework": "^8.81|^9.0",
+        "laravel/framework": "^8.83.25|^9.33",
         "laminas/laminas-diactoros": "^2.5",
         "laravel/serializable-closure": "^1.0",
         "nesbot/carbon": "^2.60",

src/ApplicationGateway.php

@@ -5,6 +5,7 @@
 use Illuminate\Contracts\Http\Kernel;
 use Illuminate\Foundation\Application;
 use Illuminate\Http\Request;
+use Illuminate\Routing\Route;
 use Laravel\Octane\Events\RequestHandled;
 use Laravel\Octane\Events\RequestReceived;
 use Laravel\Octane\Events\RequestTerminated;
@@ -50,5 +51,11 @@ public function terminate(Request $request, Response $response): void
         $this->sandbox->make(Kernel::class)->terminate($request, $response);
 
         $this->dispatchEvent($this->sandbox, new RequestTerminated($this->app, $this->sandbox, $request, $response));
+
+        $route = $request->route();
+
+        if ($route instanceof Route && method_exists($route, 'flushController')) {
+            $route->flushController();
+        }
     }
 }

tests/RequestStateTest.php

@@ -49,6 +49,67 @@ public function test_form_requests_contain_the_correct_state_across_subsequent_r
         $this->assertEquals('Abigail', $client->responses[1]->original['name']);
         $this->assertNotEquals($client->responses[0]->original['container'], $client->responses[1]->original['container']);
     }
+
+    public function test_request_routes_flush_controller_state()
+    {
+        [$app, $worker, $client] = $this->createOctaneContext([
+            Request::create('/users', 'GET'),
+            Request::create('/users', 'GET'),
+        ]);
+
+        $app['router']->get('/users', UserControllerStub::class);
+
+        $worker->run();
+
+        $this->assertEquals(1, $client->responses[0]->original);
+        $this->assertEquals(1, $client->responses[1]->original);
+
+        $worker->run();
+
+        $this->assertEquals(1, $client->responses[0]->original);
+        $this->assertEquals(1, $client->responses[1]->original);
+    }
+
+    public function test_request_routes_controller_does_not_leak()
+    {
+        UserControllerStub::$destroyedCount = 0;
+
+        [$app, $worker, $client] = $this->createOctaneContext([
+            Request::create('/users', 'GET'),
+            Request::create('/users', 'GET'),
+        ]);
+
+        $app['router']->get('/users', UserControllerStub::class);
+
+        $worker->run();
+
+        gc_collect_cycles();
+        $this->assertEquals(2, UserControllerStub::$destroyedCount);
+
+        $worker->run();
+
+        gc_collect_cycles();
+        $this->assertEquals(4, UserControllerStub::$destroyedCount);
+    }
+}
+
+class UserControllerStub
+{
+    protected $invokedCount = 0;
+
+    public static $destroyedCount = 0;
+
+    public function __invoke()
+    {
+        $this->invokedCount++;
+
+        return $this->invokedCount;
+    }
+
+    public function __destruct()
+    {
+        static::$destroyedCount++;
+    }
 }
 
 class RequestStateTestFormRequest extends FormRequest