Re: [gobo-eiffel-develop] GOBO and eXML

[Berend de B. <be...@po...>]

Eric Bezault <er...@go...> writes:

> I would suggest that you put all your external routines in
> a class *_EXTERNALS along with routines without POINTERs
> as arguments or results, and that you put this class in
> clusters spec/[ise|se|ve|hact] (you can possibly use 'gepp').

I think #ifdefs are an absolutely bad way to manage code. Perhaps in a
few low level classes I can live with them, but generally they
generate a mess of used on a larger scale. So lets avoid them at all
costs. 

Perhaps put this in the guidelines as well:
1. gepp only to be used for ise/se/ve/hact distinctions.
2. deferred classes are a much better choice. gepp is completely
   orthogonal to oo programming in almost any case. If you use it,
   there is something wrong.

For example, if a new Eiffel compiler pops up (Eiffel .NET comes to
mind), you have to scrawl all over your code to fix the #ifdefs and
not forget anything.

Deferred classes with a proper implementation work just as good and
give you a nice warning if you forgot to implement a method.

Groetjes,

Berend. (-: