Re: [Help-smalltalk] Object>>#do: ???

[Stephen Compall]

On Wed, 2007-06-06 at 07:12 +0200, Paolo Bonzini wrote:
> Stephen's idea and my answer regarding #flatten: gave me a weird idea. 
> Adding
> 
>      Object >> do: aBlock [ aBlock value: self ]
> 
> would be quite convenient in many cases where you have double dispatch 
> going on between normal objects and collections.  How weird would this be?

Very.  I got a distinctly bad taste in my figurative mouth when I saw it
in RBProgramNode.

I actually would rather that #flatten (or whatever it's called) not
conflate non-collections with collections so that

#((1 2) 3) flatten

signals an error.

On the other hand, something like the CL utility seen in some places

(defun mklist (obj)
  (if (listp obj)
      obj
      (list obj)))

might be a good solution for those cases, since it makes it absolutely
clear that the code wishes to conflate collections and non-collections.
Something other than #asArray, of course :)

-- 
;;; Stephen Compall ** http://scompall.nocandysw.com/blog **
Failure to imagine vast possibilities usually stems from a lack of
imagination, not a lack of possibility.

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