[Octave-bug-tracker] [bug #53858] Octave crashes when expanding an array of a sub-structure viewed by Variable Editor

[Rik]

Follow-up Comment #7, bug #53858 (project octave):

The original example still creates an endless loop for me.

I can understand what is going on, but don't have a fix just yet.  When the
variable editor windows are first set up a.b is a scalar struct, and the
sub-window is displaying 'a.b.e'.  When the code


a.b(2).c = 'string';


is executed the class of a.b changes from scalar struct to struct array. 
Therefore, 'a.b.e' now returns a cell array equivalient to 'a.b(:).e'.  The
Variable Editor is not expecting a cell array and throws errors.

If you then close the 'a.b.e' tab, and re-open it by double-clicking on the
original entry, it showes 'a.b(1).e'.

So, when the class changes we need to reflect that in the indexing expression
used.


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