OpenEuphoria

Re: Object Oriented Euphoria

• Posted by Matt Lewis <matthewwalkerlewis at yahoo.com> Dec 12, 2004
• 669 views

Tone Škoda wrote:
> 
> Matt, this looks very good. I would use it, especially if preprocessor will be
> available
> so that there is no speed loss. If only it would work more "intuitive", like
> example
> I gave below.

It turns out the preprocessor is fairly trivial, now that it correctly 
parses.  I'm basically adding a '-p' command line option.  It will then
parse the program, and any files that needed to be modified are rewritten
into a 'preprocess' subdirectory (from the directory where the main 
file was).

> I would also like to use classes as structures, ie only data no routines.
> Because the
> meaning of OO or classes for me is in that it helps me organize my code more
> clear.

I'll have to think about how to manage this.  Or maybe you can. :)

> I like name class more than euclass.

Me, too, but I've got several projects where class already exists, and I
think euclass isn't too bad.  We'll see.  You can always change it in 
your copy, and use that in your code (keylist.e).

> About trace or debugger: in my opinion it should be part of editor, so that
> you have
> all at one place. Debugger will have to display lines of code anyway, why not
> use an
> existing editor to do it?

I'd like to have a nicer, GUI based editor, and I don't want to bloat the
code to include all that.  I *do* plan to give an API that others can
use to build whatever sort of debugger they'd like.

> }}}
<eucode>
> 
> include get.e
> 
> euclass PERSON
> 	integer age
> 	sequence name
> 	procedure show_stats ()
> 		printf (1, "Persons name is %s and is %d years old.\n",
> 			{name, age})
> 	end procedure
> end euclass
> 
> PERSON tone
> tone.age = 23
> tone.name = "Tone Škoda"
> tone.show_stats ()
> 
> if wait_key () then end if
> 
> </eucode>
{{{


Hmmm...I've thought about making separate data, but I decided against it,
because there would be other issues, like when and how to copy things.
All data would be held in the class object itself (so maybe it's a 
sequence).  It would probably be possible to turn something like the
above into:

me.name  ==> me[1]

Matt Lewis