syntax-local-value

[Stefan Israelsson Tampe]

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