[Octave-bug-tracker] [bug #65667] inputParser does not accept object with struct method as default value

[Tibor Auer]

URL:
  <https://savannah.gnu.org/bugs/?65667>

                 Summary: inputParser does not accept object with struct
method as default value
                   Group: GNU Octave
               Submitter: tiborauer
               Submitted: Wed 01 May 2024 05:39:21 PM UTC
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Unexpected Error or Warning
                  Status: None
             Assigned to: None
         Originator Name: Tibor Auer
        Originator Email: 
             Open/Closed: Open
                 Release: 9.1.0
         Discussion Lock: Any
        Operating System: Any
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Wed 01 May 2024 05:39:21 PM UTC By: Tibor Auer <tiborauer>
9.1.0 has updated parameter specification and replaced struct specification
field-by-field with calling the struct function (lines 365-370).
Unfortunately, it prevents me from specifying my custom class, which has a
struct method as a default parameter.

After some digging, I have found that it is due to the struct function, which
does not accept such class as a field value.

Minimum code:
testClass.m
  classdef testClass
    methods
      function p = testClass ()
      end

      function s = struct(this)
        s = 12;
      end

    end
  end

>> c = testClass()
c =

  testClass object with properties:


>> s = struct("p",c)
error: struct: function called with too many inputs
error: called from
    struct
>> s.p = c
s =

  scalar structure containing the fields:

    p =

      testClass object with properties:








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