[rkward] [Bug 391587] New: Reverse Debugging; record changes in vars at every step.

D G bugzilla_noreply at kde.org
Thu Mar 8 22:25:04 UTC 2018


https://bugs.kde.org/show_bug.cgi?id=391587

            Bug ID: 391587
           Summary: Reverse Debugging; record changes in vars at every
                    step.
           Product: rkward
           Version: unspecified
          Platform: Other
                OS: MS Windows
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: R Console
          Assignee: rkward-devel at kde.org
          Reporter: rain8dome9 at gmail.com
  Target Milestone: ---

I hope something like reverse debugging exists in an R. All you really need to
do is write down the changes in variables at every step. str() would be best.
Crash. Automatically highlight vars involved, and user can add more. Var change
window moves highlighted vars to left. Keep scrolling up to catch whenever the
NAs or structure changes show up first and there is my bug 2/3 times. Maybe
this is called record-replay debugging. 

https://stackoverflow.com/questions/14159806/reverse-debugging-for-languages-other-than-c-c

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