Class GetStringVisitor

src/osvr/Common/GetJSONStringFromTree.h:42–49

namespace common {
    namespace {
        struct GetStringVisitor : boost::static_visitor<std::string> {
            std::string operator()(elements::StringElement const &elt) const {
                return elt.getString();
            }
            template <typename T> std::string operator()(T const &) const {
                return std::string{};
            }
        };
    }
    inline std::string getJSONStringAtNode(PathNode const &node) {
        return boost::apply_visitor(GetStringVisitor(), node.value());