For the case of Jane Street ppx rewriters (assuming you are using
ppx_sexp_conv), you can install ppx_jane and do:

  ppx-jane file.ml

On Thu, Mar 24, 2016 at 9:27 AM, Goswin von Brederlow <goswin-v-b@web.de>
wrote:

> On Wed, Mar 23, 2016 at 06:02:49PM +0100, Louis Roché wrote:
> > Hi,
> >
> > 1) With utop, you will get what you want:
> >
> > utop # type t = {
> >   i: int;
> >   f: float
> > } [@@deriving eq,show];;
> > type t = { i : int; f : float; }
> > val equal : t -> t -> bool = <fun>
> > val pp : Format.formatter -> t -> unit = <fun>
> > val show : t -> bytes = <fun>
> >
> > 2) I believe that you are looking for an option like -dsource for ocamlc
> >
> > Louis
> >
> >
> > 2016-03-23 17:39 GMT+01:00 Francois Berenger <francois.berenger@inria.fr
> >:
> >
> > > 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.
>
> 'ocamlc -i' should work too.
>
> MfG
>         Goswin
>
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-- 
Jeremie