public function __construct(Environment $env, $templateName)
{
$this->templateName = $templateName;
$this->baseClass = $env->getOption('template_base_class');
$className = $env->getTemplateClassName($templateName);
$classNameOffset = strrpos($className, '\\');
if ($classNameOffset === false) {
$this->namespace = '';
$this->className = $className;
} else {
$this->namespace = substr($className, 0, $classNameOffset);
$this->className = substr($className, $classNameOffset + 1);
}
}