Function CheckDFObject

library/include/LuaTools.h:177–179

     */
    template<df_object T>
    T *CheckDFObject(lua_State *state, int val_index, bool exact_type = false) {
        return (T*)CheckDFObject(state, df::identity_traits<T>::get(), val_index, exact_type);
    }

    /**
     * Assign the value at val_index to the target using df.assign().