Hi Francois,

You can use ppx_tools (https://github.com/alainfrisch/ppx_tools) to do it:

  ocamlfind ppx_tools/rewriter ./my_ppx_rewriter foo.ml

Cheers,
Nicolas


On Wed, Mar 23, 2016 at 5:39 PM, Francois Berenger <
francois.berenger@inria.fr> wrote:

> Dear list,
>
> I am completely new to the -ppx option of the compiler, so please
> forgive in advance my (probably stupid) two questions.
>
> Here is some example code:
> ---
> type t = {
>   i: int;
>   f: float
> } [@@deriving sexp]
> ---
>
> 1) I'd like to see all the functions automatically created
> by the magical spell "[@@deriving sexp]".
> At least their names and type signatures would be nice.
> How to do that?
>
> 2) If that's not possible, I'd like to get back some
> OCaml code corresponding to the AST after ppx processing.
> If that's possible, how to do that?
>
> Thanks a lot,
> Francois.
>
> --
> Caml-list mailing list.  Subscription management and archives:
> https://sympa.inria.fr/sympa/arc/caml-list
> Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
> Bug reports: http://caml.inria.fr/bin/caml-bugs
>