public function visitConfigCollection(ConfigCollectionBinding $configCollection)
{
$elements = $configCollection->getElements();
foreach ($elements as $name => $element) {
if ($element instanceof ConfigItemBinding) {
$elements[$name] = $this->visitConfigItem($element);
}
}
$optimized = new ConfigCollectionBinding($configCollection->getName(), $configCollection->getSource(), $elements);
$this->bindings->put($optimized);
}
