Re: hook? primitive

["Marisha Ray & Neil Jerram" <mpriz@dircon.co.uk>]

From: Greg Badros <gjb@cs.washington.edu>

>That doesn't mean that you should have *less* information about a hooks
>intended procedure type.  Ideally the hook would be able to report more
>information about the intended kind of procedure.


Isn't that rather like saying that all integer-type variables should somehow
know what sort of integer they are, such as a guile version number or the
number of hairs on a dog's head?  In languages like Scheme and C, this sort
of semantic information is usually described implicitly by
- documentation
- context
- variable and procedure names
- knowledge in the programmers' heads.
Why make a special case for hooks?

Surely, at the point in SCWM where you are using, say, pointer-motion-hook,
you know the type of procedures that can be added to this hook?

    Neil