protected static function createTwigLoader(Settings $settings)
{
if (!$settings->has('template_paths')) {
throw new RuntimeError('Missing "template_paths" settings with template lookup locations.');
}
$template_paths = (array) $settings->get('template_paths', []);
$loader = new FilesystemLoader($template_paths);
if ($settings->has('allowed_template_extensions')) {
$loader->setAllowedExtensions((array) $settings->get('allowed_template_extensions'));
}
if (!$settings->has('cache_scope')) {
$loader->setScope(spl_object_hash($loader));
// unique scope for each new loader instance
} else {
$loader->setScope($settings->get('cache_scope', FilesystemLoader::SCOPE_DEFAULT));
}
return $loader;
}
/**
* Returns whether the setting key exists or not.
*
* @param mixed $key key to check
*
* @return bool true, if key exists; false otherwise
*/
public function has($key)
{
return $this->settings->has($key);
}
