Test callgraph

src/CollectorProviders/ViewsCollectorProvider.php

@@ -7,6 +7,7 @@
 use Barryvdh\Debugbar\DataCollector\ViewCollector;
 use DebugBar\DataCollector\TimeDataCollector;
 use Illuminate\Events\Dispatcher;
+use Illuminate\View\View;
 
 class ViewsCollectorProvider extends AbstractCollectorProvider
 {
@@ -28,7 +29,17 @@ public function __invoke(Dispatcher $events, array $options): void
         $events->listen(
             'composing:*',
             function ($event, $params) use ($viewCollector) {
-                $viewCollector->addView($params[0]);
+                /** @var View $view */
+                $view = $params[0];
+                $factory = $view->getFactory();
+
+                $renderCount = null;
+                if (property_exists($factory, 'renderCount')) {
+                    $ref = new \ReflectionProperty($factory, 'renderCount');
+                    $renderCount = $ref->getValue($factory);
+                }
+
+                $viewCollector->addView($view, $renderCount);
             },
         );
     }

src/DataCollector/ViewCollector.php

@@ -10,6 +10,9 @@
 
 class ViewCollector extends TemplateCollector
 {
+    protected ?int $currentRenderCount = null;
+    protected array $callGraph = [];
+
     public function getName(): string
     {
         return 'views';
@@ -18,7 +21,7 @@ public function getName(): string
     /**
      * Add a View instance to the Collector
      */
-    public function addView(View $view): void
+    public function addView(View $view, ?int $renderCount = null): void
     {
         $name = $view->getName();
         $type = null;
@@ -59,13 +62,43 @@ public function addView(View $view): void
         }
 
         $this->addTemplate($name, $data, $type, $path);
+        if ($renderCount !== null) {
+            $this->addTemplateRender($name, $renderCount);
+        }
 
         if ($this->timeCollector !== null) {
             $time = microtime(true);
             $this->timeCollector->addMeasure('View: ' . $name, $time, $time, [], 'views', 'View');
         }
     }
 
+    protected function addTemplateRender(string $name, int $renderCount): void
+    {
+        debug($renderCount, $this->currentRenderCount);
+        $this->callGraph[] = str_repeat(' ', $renderCount - 1) . (($renderCount > $this->currentRenderCount && $renderCount > 1) ? '└' : ' ') . $name;
+        $this->currentRenderCount = $renderCount;
+    }
+
+    public function collect(): array
+    {
+        $data = parent::collect();
+
+        if ($callGraph = $this->getHtmlCallgraph()) {
+            $data['callgraph'] = $callGraph;
+        }
+
+        return $data;
+    }
+
+    public function getHtmlCallgraph(): ?string
+    {
+        if ($this->callGraph) {
+            return '<pre>' . implode("\n", $this->callGraph) . '</pre>';
+        }
+
+        return null;
+    }
+
     private function getRenderSource(string $name, ?string $path): ?array
     {
         $backtrace = debug_backtrace(DEBUG_BACKTRACE_PROVIDE_OBJECT, 20);