Re: [Caml-list] camlp4 and class introspection

["Yaron Minsky" <yminsky@cs.cornell.edu>]

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Others can probably give a better definition of type-directed programming
than I can, and it's possible I'm misusing the time.  But in any case, what
I mean by type-directed programming is roughly this:  for each type, you
define a value corresponding to that type that contains useful information
about the type.  In our s-expression macros, these values are simply
functions named sexp_of_<type> and <type>_of_sexp for each type.  The role
of these values is to essentially give you a run-time representation of the
type, in a rather static way.

Macros come in by giving you a way to automate the generation of these
type-related values, which otherwise can be rather tedious.

y

On 6/10/07, Joel Reymont <joelr1@gmail.com> wrote:
>
> Yaron,
>
> On Jun 10, 2007, at 9:02 PM, Yaron Minsky wrote:
> > I actually think you can do this kind of thing with a combination of
> > type-directed programming and macros.
>
> What would be type-directed programming in this scenario?
>
> Would this be done within camlp4?
>
>         Thanks, Joel
>
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