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This patch allows Coq terms to be extracted into the widely used JSON
format. This is useful in at least two cases:
- One might want to manipulate Coq values outside of Coq, but without
being forced to use one of the three existing extraction languages
(OCaml, Haskell, or Scheme), and without having to compile Coq's
extracted result. This is especially useful when a Coq evaluation
produces some data structure that needs to be moved out of Coq.
Having to invoke an OCaml/Haskell/Scheme compiler just to get a
data structure out of Coq is somewhat awkward.
- One might want to experiment with extracting Coq code into other
languages (Go, Javascript, etc), without having to write the whole
extraction logic in OCaml and recompile Coq's extraction plugin
each time. This makes it easy to quickly prototype extraction
in any language, without having to build Coq from source.
Extraction to JSON is implemented by adding the JSON "pseudo-language"
to the extraction facility. Thus, one can extract the JSON encoding
of a single term using:
Extraction Language JSON.
Extraction qualid.
and extract an entire Coq library "ident" into "ident.json" using:
Extraction Language JSON.
Extraction Library ident.
Nota (Pierre Letouzey) : this is an updated version of the original
PullRequest, updated to match recent changes in trunk
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* generalize the use of .mllib to build all cma, not only in plugins/
* the .mllib in plugins/ now mention Bruno's new _mod.ml files
* lots of .cmo enumerations in Makefile.common are removed, since
they are now in .mllib
* the list of .cmo/.cmi can be retreive via a shell script line,
see for instance rule install-library
* Tolink.core_objs and Tolink.ide now contains ocaml _modules_, not
_files_
* a -I option to coqdep_boot allows to control piority of includes
(some files with the same names in kernel and checker ...)
This is quite a lot of changes, you know who to blame / report to
if something breaks.
... and last but not least I've started playing with ocamlbuild.
The myocamlbuild.ml is far from complete now, but it already allows
to build coqtop.{opt,byte} here. See comments at the top of
myocamlbuild.ml, and don't hesitate to contribute, either for completing
or simplifying it !
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@12002 85f007b7-540e-0410-9357-904b9bb8a0f7
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user contribs
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@11996 85f007b7-540e-0410-9357-904b9bb8a0f7
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Nickolai Zeldovich
letouzey