Laurent Gautier a écrit :
It does not have to be a functional language.
To see it in use within a some-language-to-R bridge, you can check the
source in JRI, rpy2.
I can mostly speak for rpy2, and the way it is done there relies on both
R and Python's GC. Creating a anonymous R object presented to the Python
world is first "R_preserved" (from garbage collection from R) then using
Python's reference counting mechanism, calling an "R_Release" whenever
the Python wrapper is available for garbage collection (in fact there is
a twist, but this is roughly the way it is working). In your case,
you'll use the OCaml GC system (and "R_release" the R object when its
OCaml representation is going for garbage collection).
For now, garbage collection is a secondary issue.
I would have been interested in a binding to a functional language to
see exactly where you get a closure to closure mapping. That's why I was
asking since that's what I'm foremost interested in.
By low-level, I mean a binding that takes hold of R objects without
using symbols all over to reference them. (Using symbols in the
formals, the body or the environment of a closure is fine, for
instance, but I'd like to execute a closure directly, and eventually
be able to construct R closure from OCaml functions).
Rpy2 can do a lot of that, and probably so can JRI.
An anonymous closure to anonymous closure mapping? Could you point out
where this is done exactly?
--
Guillaume Yziquel
http://yziquel.homelinux.org/
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