#define WORKAROUND(cx_, saver_)                                               \
    Workaround WORKAROUND_PASTE(w_, __LINE__)((cx_), (saver_))
#define WORKAROUND_PASTE(a_, b_) WORKAROUND_PASTE2(a_, b_)
#define WORKAROUND_PASTE2(a_, b_) a_ ## b_ /* having fun yet? */
#define SAVER(cx_, saver_)                                                    \
    AutoValueRooter saver_(cx_);                                              \
    WORKAROUND((cx_), (saver_));