It would make sense if the author had meant do clause instead of if clause.

Something like that:

  do {
    switch (bleh) {
      case MEH:
        if (derp) {
          break; /* supposed exit the do..while loop early...
                    except it only exits the switch statement */
        }
        [...]
        break; /* usually there's a break at the end of each
                  case statement, but the programmer might
                  not have seen it if it's far away */
    [...]
    }
    fun_stuff(); /* not supposed to be called when
                    bleh == MEH and derp is non-null */
  } while (quux);