[Octave-bug-tracker] [bug #46571] Inconsistency between old and new oop syntax (wrt subsasgn)

[Stéphane Adjemian]

URL:
  <http://savannah.gnu.org/bugs/?46571>

                 Summary: Inconsistency between old and new oop syntax (wrt
subsasgn)
                 Project: GNU Octave
            Submitted by: step4n
            Submitted on: Mon 30 Nov 2015 01:38:57 PM GMT
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: Stéphane Adjemian
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.0
        Operating System: Any

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Details:

Calls to the subsasgn are not working with the new class syntax. In the
attached files I provide two implementations of the same class with the old
and new (ie using classdef) interfaces.

With the new interface the following code :


a = myclass(data(10,2), {'v1'; 'v2'});
a{'v1'}=ones(10,1)


returns


error: invalid assignment to cs-list outside multiple assignment


while the same code returns the expected results with the old oop syntax. Note
also that both interfaces produce the same expected results with Matlab 2015b.
Debugging the code reveals that we never enter the @myclass/subsasgn
function.

Note also that the problem does not pop up if the length of the string used as
an index is equal to one, ie:


a = myclass(data(10,2), {'v1'; 'v2'});
a{'v'}=ones(10,1)


produces the expected result.



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File Attachments:


-------------------------------------------------------
Date: Mon 30 Nov 2015 01:38:57 PM GMT  Name: new-syntax.tar  Size: 10kB   By:
step4n
Two implementations of the same class
<http://savannah.gnu.org/bugs/download.php?file_id=35596>
-------------------------------------------------------
Date: Mon 30 Nov 2015 01:38:57 PM GMT  Name: old-syntax.tar  Size: 10kB   By:
step4n
Two implementations of the same class
<http://savannah.gnu.org/bugs/download.php?file_id=35597>

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