[Octave-bug-tracker] [bug #60845] Nested functions variable scope

[Rik]

Update of bug #60845 (project octave):

                  Status:                    None => Confirmed              

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Follow-up Comment #1:

Confirmed.  Thank you for the minimal example.  I added a keyboard statement
at the start of nestfcn().  I then executed 'who' to see what variables were
available.  The results are odd.


Variables visible from the current scope:

Ahandle     Ahandle     fcn_handle  static      varargin    Ahandle    
fcn_handle  static      varargin


As you can see, the variable "Ahandle" is repeated 3 times while other
variables are still repeated twice.  Within a given scope, I should see only
one instance of a variable so something is wrong.

I then tried 'whos' which maybe helps sort things out a bit.


Variables visible from the current scope:

variables in scope: nestfcn:
/home/rik/wip/Projects_Mine/octave-dev/mainfcn2.m

   Attr Name         Size                     Bytes  Class
   ==== ====         ====                     =====  ===== 
        Ahandle      1x1                          0  function_handle

Total is 1 element using 0 bytes

variables in scope: checkInput:
/home/rik/wip/Projects_Mine/octave-dev/mainfcn2.m

   Attr Name            Size                     Bytes  Class
   ==== ====            ====                     =====  ===== 
    f   Ahandle         1x1                          1  logical
    f   fcn_handle      1x1                          0  function_handle
    f   static          1x1                          1  logical
    f   varargin        0x0                          0  cell

Total is 3 elements using 2 bytes

variables in scope: mainfcn2:
/home/rik/wip/Projects_Mine/octave-dev/mainfcn2.m

   Attr Name            Size                     Bytes  Class
   ==== ====            ====                     =====  ===== 
        Ahandle         1x1                          1  logical
        fcn_handle      1x1                          0  function_handle
        static          1x1                          1  logical
    f   varargin        0x0                          0  cell

Total is 3 elements using 2 bytes



Apparently, with just 'who' I am seeing variables for all scopes, regardless
of whether they are really available or not.  Given that I am in the function
nestfcn I don't know why I should see variables for the checkInput() scope.  I
verified with dbstack where I was


dbstack
stopped in:

  --> mainfcn2>nestfcn at line 15
[/home/rik/wip/Projects_Mine/octave-dev/mainfcn2.m]
              mainfcn2 at line 4
[/home/rik/wip/Projects_Mine/octave-dev/mainfcn2.m]




(file #51614)
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Additional Item Attachment:

File name: mainfcn2.m                     Size:0 KB
    <https://file.savannah.gnu.org/file/mainfcn2.m?file_id=51614>



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