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From: Rudi Grinberg <rudi.grinberg@gmail.com>
To: "Paul A. Steckler" <steck@stecksoft.com>,
	Ocaml Mailing List <caml-list@inria.fr>
Subject: Re: [Caml-list] Porting old-style ppx to driver-style?
Date: Thu, 10 May 2018 14:00:11 +0700	[thread overview]
Message-ID: <m28t8sj8qs.fsf@Rudis-MacBook-Pro.local.i-did-not-set--mail-host-address--so-tickle-me> (raw)
In-Reply-To: <CAMSKV5fLxsTFyrR1naMSPk_Nb7kEd3dLeeD1eF8T3p7C6YKf7w@mail.gmail.com>


Hi Paul,

> I believe the solution is to turn the ppx into a new-style "driver".
> What's the best way to do that? Is it as simple as changing the build
> to use a jbuild as described in the section "Creating a new Ppx_driver
> based rewriter"?:

Using ppx_driver (now a part of ppxlib I believe) isn't necessary. I
think it should be enough to follow the lead of other ppx_deriving
plugins that are built with dune (ppx_deriving_yojson for example). The
necessary bit here is to use omp and generate a correct META file that
will make ppx_deriving_lens usable in driver *and* as a dynlinked
deriver for ppx_deriving itself.

There's an existing PR to port ocaml-lens and I believe it's on the
right track:

https://github.com/pdonadeo/ocaml-lens/pull/9

Perhaps you can help out with that effort?

Cheers,

Rudi.

  reply	other threads:[~2018-05-10  7:00 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-04 22:20 Paul A. Steckler
2018-05-10  7:00 ` Rudi Grinberg [this message]
2018-05-11  1:18   ` Paul A. Steckler

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