[Octave-bug-tracker] [bug #64620] Nested functions handles make stack frames leak

[Petter T.]

URL:
  <https://savannah.gnu.org/bugs/?64620>

                 Summary: Nested functions handles make stack frames leak
                   Group: GNU Octave
               Submitter: petter
               Submitted: Mon 04 Sep 2023 08:53:05 PM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


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Date: Mon 04 Sep 2023 08:53:05 PM UTC By: Petter T. <petter>
A nested function's handle keeps the parent frames alive, and if a handle to
the nested function happen to be stored in a parent frame, the circle will
prevent destroying the frames.

The same problem applies with a nested nested function's handle, in which
storing the handle on the nesting function's frame will form a circle.

Please see supplied patch in next post for remedy.







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