Selector::getModuleRestrictions

public function getModuleRestrictions($module)
{
	$module = (string)$module;
	if ($module === '')
	{
		return null;
	}
	if (isset($this->restrictions[$module]))
	{
		return $this->restrictions[$module];
	}
	if (isset($this->restrictions['all']))
	{
		return $this->restrictions['all'];
	}
	return null;
}