Yes, the plugin is fully aware of module A in my example. Thanks,
Josef From: "Domínguez, Facundo" <[email protected]> Date: Tuesday, November 26, 2019 at 11:56 AM To: Josef Svenningsson <[email protected]> Cc: "[email protected]" <[email protected]> Subject: Re: Injecting imported functions using a core plugin Hello Josef, Do you know the location of foo when building the plugin? Otherwise, how is the plugin supposed to learn where it comes from? Facundo On Tue, Nov 26, 2019 at 8:49 AM Josef Svenningsson <[email protected]<mailto:[email protected]>> wrote: Hi ghc-devs, I’m currently writing a core plugin that I could use some help with. Consider the following two modules: ``` module A where foo :: Int bar :: Int module B where baz :: Int baz = bar ``` When compiling module B I run my plugin. The goal of the plugin is to replace the occurrence of `bar` with `foo`. Note that we can be sure that `foo` is actually imported, but unfortunately doesn’t occur anywhere in B before the plugin performs the transformation. The problem I have is that in order to inject `foo` in B I need to have an `Id` which represents `foo` and I’m having some trouble constructing such an `Id`. I’ve looked through the various environments that are available during the core to core transformations but none of them provides enough information to actually produce the `foo` `Id` as far as I can see. I hope I’m missing something. What do I need to do in order to construct the `foo` `Id` in module B? Thanks, Josef PS. The way I’ve phrased my problem in this email it would be possible to solve it with rewrite rules. My actual use case is unfortunately more complicated and rewrite rules don’t provide enough power to do what I want. _______________________________________________ ghc-devs mailing list [email protected]<mailto:[email protected]> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs<https://urldefense.proofpoint.com/v2/url?u=http-3A__mail.haskell.org_cgi-2Dbin_mailman_listinfo_ghc-2Ddevs&d=DwMFaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=APxRu21VjqVNNweqFCcqEg&m=GFa__bFPWUfEJ6jRu88IHniIN7ttzeLvqzwGuaUrkFQ&s=z0FCFfQcFkKAnEtXShY_RTS8-jKUYAcwQHTGYAvCJDU&e=>
_______________________________________________ ghc-devs mailing list [email protected] http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
