Module import and use in GHC plugin?

[Simon Peyton-Jones]

Plugin support is not well documented, and could do with some love. If someone would like to take it up, I'm sure it could be improved a lot.

Simon

From: ghc-devs-bounces at haskell.org [mailto:ghc-devs-bounces at haskell.org] On Behalf Of Amos Robinson
Sent: 29 May 2013 23:50
To: Conal Elliott
Cc: glasgow-haskell-users at haskell.org; ghc-devs at haskell.org
Subject: Re: Module import and use in GHC plugin?

I'd love to know a nicer way to do this, but what Ben Lippmeier did as a workaround is require a binding

"repa_primitives = R.primitives"
where repa_primitives is a record with references to all the primitive types you need. It's not great, but it works.

Plugin code:
http://code.ouroborus.net/repa/repa-head/repa-plugin/Data/Array/Repa/Plugin/Primitives.hs

Primitives export:
http://code.ouroborus.net/repa/repa-head/repa-series/Data/Array/Repa/Series/Prim.hs


On Thu, May 30, 2013 at 7:37 AM, Conal Elliott <conal at conal.net<mailto:conal at conal.net>> wrote:
In writing GHC plugins, how can I (a) add a module import (preferably qualified) and (b) make vars/ids for names imported from the newly imported module (to insert in the transformed Core code)?

If it's not possible to do what I want, I'd be willing to require an explicit import (say "import qualified Foo") in client code, as a temporary workaround.
So far I've been unable to import even from the base package. Maybe I'm missing something basic that you folks have learned.

My simple & unsuccessful attempt is at https://github.com/conal/plugin-import-id . Help greatly appreciated.

Thanks,

  - Conal

_______________________________________________
ghc-devs mailing list
ghc-devs at haskell.org<mailto:ghc-devs at haskell.org>
http://www.haskell.org/mailman/listinfo/ghc-devs

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/ghc-devs/attachments/20130530/c34d5e0b/attachment.htm>