Am So., 6. Nov. 2022 um 16:57 Uhr schrieb Marc Nieper-Wißkirchen
<xxxxxx@nieper-wisskirchen.de>:
>
> Am So., 6. Nov. 2022 um 16:54 Uhr schrieb John Cowan <xxxxxx@ccil.org>:
> >
> >
> >
> > On Sun, Nov 6, 2022 at 6:00 AM Marc Nieper-Wißkirchen <xxxxxx@nieper-wisskirchen.de> wrote:
> >
> >> Fluids have been added to the latest version in my personal repository.
> >
> >
> > To improve interoperability, it would be good to add operations to make a fluid from an existing parameter object and to extract the parameter object from an existing fluid.  I suggest the names "fluidify" (which is an unusual word, but standard) and "fluid-parameter".

So,

(fluid-parameter <fluid>)

has to be syntax because a fluid is a syntactic entity.

The same is valid for "fluidify" ("verflüssigen" in German).  It has
to bind a fluid because, at runtime, a fluid is not a value.

What syntax did you have in mind?

Akin to SRFI 212 ("alias"), we can have

(fluidify <fluid> <param-expr>)

which binds <fluid> to the (!) underlying fluid of <param-expr>.
Therefore, no "define-" because there would be no new fluid created:

(define p (make-parameter 'initial))
(fluidify x p)
(fluidify y p)
(free-identifier=? x y) ; => #t
(eqv? (fluid-parameter x) p))
(eqv? (fluid-parameter y) p))

Comments?