Re: OOing RPG was RE: open source rpg compiler

[Hans <boldt@xxxxxxxxxx>]

Steve Richter wrote:
> You cant be serious! For the programmer, there doesnt have to be anything
> kludgy about C++.

Hmmm, off the top of my head there's the fact that some variables can be 
objects and others not, which causes trouble if for example you want to put 
an int into a collection class. There's the famous lack of a garbage 
collector. Be sure to code "#undef private" at the beginning of your .hpp 
files lest someone "#define private public". Then there's the gotcha of 
returning a reference to an object allocated on the stack from a function. 
Shall I go on?

> 
> A big first step toward OOing RPG is to allow a proc to be a member of a
> data structure.
> 
> d Pr_Employee   ds                qualified
> d  Name                      30a  varying
> d  Number                     7a
> 
> d Display       pr                MemberProcOfDataStuct( Pr_Employee )
> 
> d Employee      ds                likeds(Pr_Employee)
> 
>  /free
>       Employee.Name    = 'Betty' ;
>       Employee.Number  = 'a1234' ;
>       Employee.Display( ) ;
> 
>       return ;
> ** -------------------- Pr_Employee.Display -----------------------
> p Display       b
> d Display       pi                MemberProcOfDataStuct( Pr_Employee )
>  /free
>       fDisplay( Name + ' ' + Number ) ;
>  /end-free
> p               e
> 
> And ILE does not have a fit over this because the RPG compiler would
> simply insert a C++ like "this" parm as parm1 of the actual
> Pr_Employee_Display proc.

And you demonstrate my point nicely. How is this not kludgy? And there's a 
lot more territory to cover before you can call a language object-oriented. 

Cheers! Hans