Re: Objects and OOP

[Robert T. Short]

Sorry to be so slow.  There is a lot of code to understand before I try 
to make any changes.  I am probably a little overcautious.  Also, like 
everybody, somewhat time-constrained.

I am building a test case by stripping down a very complex MATLAB system 
that I have been building for a client.  The result will be a somewhat 
contrived but fairly complete test suite.  Attached is a very 
preliminary version - just single inheritance.  The next step will be to 
add the appropriate support in "isa()".  Multiple and multi-level 
inheritance will come as I am able to get it done.  There are some 
things that I haven't figured out how to do yet but since basic class 
support is present I don't really think this is a hard problem - or at 
least wouldn't be if I was more familiar with the sources.  I think 
aggregation will be easier than inheritance.

The way I am approaching this is to implement the "old-style" OOP 
interface first; class methods are all in a directory with name 
@ClassName.  There are two reasons for this.  First, my MATLAB is a 
little long in the tooth and doesn't have classdef-style OOP support, 
and second I don't have to muck about with the parser much (not at 
all?).  I think classdef support will be able to build on the old-style 
stuff without much code support - just parser support.  In the end, I 
would like to have a very complete MATLAB style OOP system. 

I have done some modification to ov-class.{h,cc}, and hope to have 
something functional to post by the weekend.  I certainly won't have the 
complete solution that soon, but you did ask me to do small chunks.  I 
really want to get this to work so I can quit using Windows and back to 
my linux system.


Bob
--
Robert T. Short
PhaseLocked Systems

John W. Eaton wrote:
> On  8-Jan-2009, Robert T. Short wrote:
>
> | I am new to this list, so forgive me if I am rehashing old topics.
> | 
> | I downloaded the 3.1.51+ sources and have been experimenting with the 
> | OOP facilities.  I have two questions.
> | 
> | It seems that support for basic objects is present, but support for 
> | inheritance is not.  True?
>
> Can you post an example of what you expect to work?
>
> | If true, then my second question is: can I help implement the 
> | inheritance features?
>
> Yes.
>
> jwe
>
>
>

classtest.tgz
Description: GNU Unix tar archive