Re: [Caml-list] Is it possible to get back some OCaml code after ppx processing ?

["Louis Roché" <louis@louisroche.net>]

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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.
>
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