RenderContext::bubble
public function RenderContext::bubble
public RenderContext::bubble()
Bubbles the stack.
Whenever another level in the render array has been rendered, the stack must be bubbled, to merge its rendering metadata with that of the parent element.
File
- core/lib/Drupal/Core/Render/RenderContext.php, line 43
Class
- RenderContext
- The render context: a stack containing bubbleable rendering metadata.
Namespace
Drupal\Core\RenderCode
public function bubble() { // If there's only one frame on the stack, then this is the root call, and // we can't bubble up further. ::renderRoot() will reset the stack, but we // must not reset it here to allow users of ::executeInRenderContext() to // access the stack directly. if ($this->count() === 1) { return; } // Merge the current and the parent stack frame. $current = $this->pop(); $parent = $this->pop(); $this->push($current->merge($parent)); }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Render!RenderContext.php/function/RenderContext::bubble/8.1.x