symfony
diff --git a/‎src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/time.html.twig
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+5-1Lines changed: 5 additions & 1 deletion b/‎src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/time.html.twig
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+5-1Lines changed: 5 additions & 1 deletion
diff --git a/‎src/Symfony/Bundle/WebProfilerBundle/composer.json
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+1-1Lines changed: 1 addition & 1 deletion b/‎src/Symfony/Bundle/WebProfilerBundle/composer.json
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+1-1Lines changed: 1 addition & 1 deletion
diff --git a/‎src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php
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+9Lines changed: 9 additions & 0 deletions b/‎src/Symfony/Component/HttpKernel/DataCollector/TimeDataCollector.php
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+9Lines changed: 9 additions & 0 deletions
diff --git a/‎src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
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+2Lines changed: 2 additions & 0 deletions b/‎src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Tests/DataCollector/TimeDataCollectorTest.php
+2Lines changed: 2 additions & 0 deletions
@@ -95,7 +95,11 @@
 
     <h2>Execution timeline</h2>
 
-    {% if collector.events is empty %}
+    {% if not collector.isStopwatchInstalled() %}
+        <div class="empty">
+            <p>The Stopwatch component is not installed. If you want to see timing events, run: <code>composer require symfony/stopwatch</code>.</p>
+        </div>
+    {% elseif collector.events is empty %}
         <div class="empty">
             <p>No timing events have been recorded. Are you sure that debugging is enabled in the kernel?</p>
         </div>
 
@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": "^5.5.9|>=7.0.8",
-        "symfony/http-kernel": "~3.3|~4.0",
+        "symfony/http-kernel": "~3.4.25|^4.2.6",
         "symfony/polyfill-php70": "~1.0",
         "symfony/routing": "~2.8|~3.0|~4.0",
         "symfony/twig-bridge": "~2.8|~3.0|~4.0",
 
@@ -47,6 +47,7 @@ public function collect(Request $request, Response $response, \Exception $except
             'token' => $response->headers->get('X-Debug-Token'),
             'start_time' => $startTime * 1000,
             'events' => [],
+            'stopwatch_installed' => \class_exists(Stopwatch::class, false),
         ];
     }
 
@@ -139,6 +140,14 @@ public function getStartTime()
         return $this->data['start_time'];
     }
 
+    /**
+     * @return bool whether or not the stopwatch component is installed
+     */
+    public function isStopwatchInstalled()
+    {
+        return $this->data['stopwatch_installed'];
+    }
+
     /**
      * {@inheritdoc}
      */
 
@@ -15,6 +15,7 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\HttpKernel\DataCollector\TimeDataCollector;
+use Symfony\Component\Stopwatch\Stopwatch;
 
 /**
  * @group time-sensitive
@@ -51,5 +52,6 @@ public function testCollect()
 
         $c->collect($request, new Response());
         $this->assertEquals(123456000, $c->getStartTime());
+        $this->assertSame(\class_exists(Stopwatch::class, false), $c->isStopwatchInstalled());
     }
 }
Original file line number	Diff line number	Diff line change
`@@ -15,6 +15,7 @@`
`15`	`15`	`use Symfony\Component\HttpFoundation\Request;`
`16`	`16`	`use Symfony\Component\HttpFoundation\Response;`
`17`	`17`	`use Symfony\Component\HttpKernel\DataCollector\TimeDataCollector;`
	`18`	`+use Symfony\Component\Stopwatch\Stopwatch;`
`18`	`19`
`19`	`20`	`/**`
`20`	`21`	`* @group time-sensitive`
`@@ -51,5 +52,6 @@ public function testCollect()`
`51`	`52`
`52`	`53`	`$c->collect($request, new Response());`
`53`	`54`	`$this->assertEquals(123456000, $c->getStartTime());`
	`55`	`+ $this->assertSame(\class_exists(Stopwatch::class, false), $c->isStopwatchInstalled());`
`54`	`56`	`}`
`55`	`57`	`}`