OpenEuphoria

Re: Euphoria Object Oriented Programming

• Posted by jacques deschênes <desja at globetrotter.net> Jan 02, 2007
• 1293 views

Hi Jason,

1)It's not about closure but namespaces. Namespaces are very usefull to avoid 
naming conflict but also to groups functions and data like in oop except 
in a simpler (and limited) way. Obviously the same could be done by creating 
a lot of small includes files. But I think it would be usefull to be able 
to declare many namespaces inside a single file.

2) How often I do something like that in my coding:
integer a   a= 10
sequence test  test = "ceci est un exemple"
a lot of typing for nothing
I would appreciate to be able to do.
integer a= 10
sequence test="ceci est un test"

3) I see myself often declaring variables outside procedures (functions) for the
the only usage of a single procedure (function) to keep persistant state between
call. I don't think such variables should be declared at top level.

I won't talk about closure here, although I read about it in wikipedia I don't
grasp the concept completely.

regards,
Jacques Deschênes

 
Jason Gade wrote:
> 
> jacques deschênes wrote:
> > 3) persistant variables inside procedures and functions
> > procedure proc(integer n)
> > persist atom a=0,b=0 -- need feature 2 above
> >   a += 10*n
> >   b = n/10
> > end procedure
> > those persistents objects would be stored in global space as top level
> > objects
> > 
> > regards,
> > Jacques Deschênes
> 
> I think you can do this with the multitasking. At least I've assumed as much
> even though I haven't tried it.
> 
> I think Euphoria's multitasking essentially creates closures.
> --
> "Any programming problem can be solved by adding a level of indirection."
> --anonymous
> "Any performance problem can be solved by removing a level of indirection."
> --M. Haertel
> "Premature optimization is the root of all evil in programming."
> --C.A.R. Hoare
> j.