[Octave-bug-tracker] [bug #51285] max_recursion_depth error in classdef constructor

[Guillaume]

URL:
  <http://savannah.gnu.org/bugs/?51285>

                 Summary: max_recursion_depth error in classdef constructor
                 Project: GNU Octave
            Submitted by: gyom
            Submitted on: Wed 21 Jun 2017 09:55:57 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error
                  Status: None
             Assigned to: None
         Originator Name: Guillaume
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Out of curiosity, I was testing further @gramm and came across an infinite
recursion at the highlighted lines:
https://github.com/piermorel/gramm/blob/master/%40gramm/gramm.m#L180
https://github.com/piermorel/gramm/blob/master/%40gramm/set_names.m#L29

To reproduce it, use the following class:


classdef recurse
  properties
    value = [];
  endproperties
  methods
    function obj = recurse ()
      obj(1).value.prop = 42;
    endfunction
  endmethods
endclassdef


Calling the constructor returns:


octave:1> recurse
error: max_recursion_depth exceeded
error: called from
    recurse at line 7 column 25


This disappears if obj.value is used instead of obj(1).value.




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