[Octave-bug-tracker] [bug #57401] Warning when destroying legend after "clear all".

[Pantxo Diribarne]

URL:
  <https://savannah.gnu.org/bugs/?57401>

                 Summary: Warning when destroying legend after "clear all".
                 Project: GNU Octave
            Submitted by: pantxo
            Submitted on: jeu. 12 déc. 2019 21:05:44 UTC
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

With the new legend code, the following sequence


plot (1:10);
legend ();
clear ("all");
clf ();


... produces annoying warnings:


warning: onCleanup: error caught while executing cleanup function:
'unlink_linkprop' undefined near line 89, column 89
warning: onCleanup: error caught while executing cleanup function:
'unlink_linkprop' undefined near line 89, column 89


This is due to an attempt at using linkprop objects, stored in the target
object's appdata, to destroy the link automatically. 

I'll provide a patch when I have a bug number.




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