syntax-local-value

syntax-local-value

[Stefan Israelsson Tampe]

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In looking at racket syntax-parse there seems to be some advanced macrology
that is not included in guile.

The light now is on the possibility to attach data to macros. I figure that
I could
reproduce this by using a weak hash-table but miss the functionality of

syntax-local-value

e.g.
http://docs.racket-lang.org/reference/stxtrans.html#%28def._%28%28quote._~23~25kernel%29._syntax-local-value%29%29

Basically the possibility to get the macro-object associated to a symbol in
an environment if I have understyand this.

So is there a guile feature that matches this at a reasonable level?

Regards
Stefan

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Re: syntax-local-value

[Andy Wingo]

On Sun 04 Dec 2011 20:22, Stefan Israelsson Tampe <stefan.itampe@gmail.com> writes:

> In looking at racket syntax-parse there seems to be some advanced macrology
> that is not included in guile.

Indeed :)

> syntax-local-value
>
> e.g.
> http://docs.racket-lang.org/reference/stxtrans.html#%28def._%28%28quote._~23~25kernel%29._syntax-local-value%29%29

We don't have this.  It wouldn't be too hard to implement though; want
to give it a try?

What is it used for, though?

Andy
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