Same name and namespace in other branches

1. 8.9.x core/lib/Drupal/Core/Render/Renderer.php \Drupal\Core\Render\Renderer::renderRoot()
2. 10 core/lib/Drupal/Core/Render/Renderer.php \Drupal\Core\Render\Renderer::renderRoot()
3. 11.x core/lib/Drupal/Core/Render/Renderer.php \Drupal\Core\Render\Renderer::renderRoot()

Renders final HTML given a structured array tree.

Calls ::render() in such a way that placeholders are replaced.

Should therefore only be used in occasions where the final rendering is happening, just before sending a Response:

• system internals that are responsible for rendering the final HTML
• render arrays for non-HTML responses, such as feeds

(Cannot be executed within another render context.)

Parameters

array $elements: The structured array describing the data to be rendered.

Return value

\Drupal\Component\Render\MarkupInterface The rendered HTML.

Overrides RendererInterface::renderRoot

File

core/lib/Drupal/Core/Render/Renderer.php, line 138

Class

Renderer

Turns a render array into an HTML string.

Namespace

Drupal\Core\Render

Code

public function renderRoot(&$elements) {
    // Disallow calling ::renderRoot() from within another ::renderRoot() call.
    if ($this->isRenderingRoot) {
        $this->isRenderingRoot = FALSE;
        throw new \LogicException('A stray renderRoot() invocation is causing bubbling of attached assets to break.');
    }
    // Render in its own render context.
    $this->isRenderingRoot = TRUE;
    $output = $this->executeInRenderContext(new RenderContext(), function () use (&$elements) {
        return $this->render($elements, TRUE);
    });
    $this->isRenderingRoot = FALSE;
    return $output;
}

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