[CM] metaobject protocol for S7?

[Iain Duncan]

Oops, forgot to reply to this, apologies!

Thanks for this Bill. More again for me to read up on. Generally I agree
that in my experience, composition makes for better maintenance over
inheritance. But was curious. Thanks for your thoughts.

iain

On Sun, Aug 2, 2020 at 2:36 PM <bil at ccrma.stanford.edu> wrote:

> stuff.scm has define-class, define-method, etc.  I just use
> openlets, where the outer let can be the "class" and each
> instance inherits from it.  I find this much more flexible
> and easier to understand than CLOS-style machinery.  I read
> somewhere that this is called a "prototype system".  I used
> CLOS heavily in cmn (back in the 90's), and found that
> the hierarchy simply made the code rigid (hard to change)
> and opaque (hard to read/debug).  A better debugger would have
> helped, but this was back in the dark ages.  Nowadays
> everyone says you should keep your hierarchies as shallow
> as possible, which means (does it not?) that no hierarchy
> is best :)
>
>
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