Error in `h()`:
! !
Backtrace:
     x
  1. +-evaluate::evaluate(...)
  2. | +-base::withRestarts(...)
  3. | | \-base (local) withRestartList(expr, restarts)
  4. | |   +-base (local) withOneRestart(withRestartList(expr, restarts[-nr]), restarts[[nr]])
  5. | |   | \-base (local) doWithOneRestart(return(expr), restart)
  6. | |   \-base (local) withRestartList(expr, restarts[-nr])
  7. | |     \-base (local) withOneRestart(expr, restarts[[1L]])
  8. | |       \-base (local) doWithOneRestart(return(expr), restart)
  9. | +-evaluate:::with_handlers(...)
 10. | | +-base::eval(call)
 11. | | | \-base::eval(call)
 12. | | \-base::withCallingHandlers(...)
 13. | +-base::withVisible(eval(expr, envir))
 14. | \-base::eval(expr, envir)
 15. |   \-base::eval(expr, envir)
 16. \-global f()
 17.   \-global g()
 18.     \-global h()
Execution halted
Ran 8/8 deferred expressions
