Re: Patch/feature proposal: "Source plugins"

Ok, sorry all for the delay. Attached is a "frontend plugins" patch for ghc 7.4.2. It will not work for ghc HEAD because the structure of the compiler has changed in various places, but I cannot currently compile my code against HEAD. Making this available now because it's been far too long already :) Comments/suggestions/feedback welcome. Hopefully the patch is pretty self-explanatory; and it's only small. -E On Mon, Jul 1, 2013 at 9:32 AM, Edsko de Vries wrote:

Yes, I fully intend to create a ticket with a detailed description and a first patch, but I've been struggling with the latest HEAD, and specifically the fact that it now uses dynamic libraries for TH. I (think I am) stuck at a Cabal bug and I cannot currently build my code at all :-/ Duncan is looking into this though.

Edsko

On Fri, Jun 28, 2013 at 1:43 PM, Simon Peyton-Jones

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wrote:

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I’m confused as to details here. ****

**· **Edsko is doing something; Nick is doing something else (attached for completeness).****

**· **I can’t locate a Trac Wiki page that describes the design** **

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I’m more than happy to adopt patches that improve the plugin API, but you’ll have to lead me through it!****

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No hurry, just when you are ready.****

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Simon****

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*From:* Edsko de Vries [mailto:edskodevries@gmail.com] *Sent:* 26 June 2013 09:21 *To:* Luite Stegeman *Cc:* Simon Peyton-Jones; Thomas Schilling; ghc-devs@haskell.org

*Subject:* Re: Patch/feature proposal: "Source plugins"****

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Hi Luite,****

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I was fully planning on a first version of the patch yesterday, but so far my efforts were thwarted by annoying problems with dynamic libraries (not -- directly -- related to the patch at all). I will try again today :) ****

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Edsko****

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On Wed, Jun 26, 2013 at 8:51 AM, Luite Stegeman wrote:****

Any news on this? I'd really like to have this in GHC 7.8.1 so that we can release a fully working GHCJS with GhcMake functionality based on it. I'd be happy to help write the patch.****

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luite****

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On Tue, Jun 11, 2013 at 3:21 PM, Simon Peyton-Jones < simonpj@microsoft.com> wrote:****

Guys,

I'm not following the details here, but I'm open to suggestions (patches, even) that improve the GHC API.

Simon****

| -----Original Message----- | From: ghc-devs-bounces@haskell.org [mailto:ghc-devs-bounces@haskell.org ] | On Behalf Of Thomas Schilling | Sent: 11 June 2013 12:53 | To: Edsko de Vries | Cc: ghc-devs@haskell.org | Subject: Re: Patch/feature proposal: "Source plugins" | | On 5 June 2013 13:51, Edsko de Vries wrote: | > It is a little bit messy mostly because parts of the AST get lost | along the | > way: quasi-quotes in the renamer, data type declarations and other | things | > during type checking. A more ideal way, but also more time consuming, | would | > be to change this so that the renamer leaves evidence of the quasi- | quotes in | > the tree, and the type checker returns the entire tree type checked, | rather | > than just a subset. I think that ultimately this is the better | approach, at | > least for our purposes -- I'm not sure about other tools, but since | this | > would be a larger change that affects larger parts of the ghc pipeline | I'm | > not sure that I'll be able to do it. | | I needed something similar. In particular, I built a custom code | generator, but now I need a similar feature for extracting information | from a Haskell file (for IDE features). | | Since I needed to modify one-shot compilation mode I couldn't use the | GHC API. For the IDE stuff I'm using Shake as the build manager, so | that also needs a customized one-shot mode. For my current | implementation I just copied and adapted the necessary parts of | HscMain, DriverPipeline, etc. That's very messy, fragile and breaks | on every GHC release so I'd really like to see the necessary features | put into GHC. | | Do you have a working patch somewhere? | | _______________________________________________ | ghc-devs mailing list | ghc-devs@haskell.org | http://www.haskell.org/mailman/listinfo/ghc-devs

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