Block::parseManifest

protected function parseManifest(): array
{
	static $manifests = [];

	if (!$this->id || !$this->designed)
	{
		return [];
	}
	if (array_key_exists($this->id, $manifests))
	{
		return $manifests[$this->id];
	}

	$manifests[$this->id] = BlockDesigner::parseManifest($this->content);

	return $manifests[$this->id];
}