Patch/feature proposal: "Source plugins"

[Edsko de Vries]

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
<simonpj at microsoft.com>wrote:

>  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***
> *
>
> ** **
>
> I’m more than happy to adopt patches that improve the plugin API, but
> you’ll have to lead me through it!****
>
> ** **
>
> No hurry, just when you are ready.****
>
> ** **
>
> Simon****
>
> ** **
>
> *From:* Edsko de Vries [mailto:edskodevries at gmail.com]
> *Sent:* 26 June 2013 09:21
> *To:* Luite Stegeman
> *Cc:* Simon Peyton-Jones; Thomas Schilling; ghc-devs at haskell.org
>
> *Subject:* Re: Patch/feature proposal: "Source plugins"****
>
>  ** **
>
> Hi Luite,****
>
> ** **
>
> 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 :)****
>
> ** **
>
> Edsko****
>
> ** **
>
> On Wed, Jun 26, 2013 at 8:51 AM, Luite Stegeman <stegeman at gmail.com>
> 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.****
>
> ** **
>
> luite****
>
> ** **
>
> ** **
>
> On Tue, Jun 11, 2013 at 3:21 PM, Simon Peyton-Jones <simonpj at 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 at haskell.org [mailto:ghc-devs-bounces at haskell.org]
> | On Behalf Of Thomas Schilling
> | Sent: 11 June 2013 12:53
> | To: Edsko de Vries
> | Cc: ghc-devs at haskell.org
> | Subject: Re: Patch/feature proposal: "Source plugins"
> |
> | On 5 June 2013 13:51, Edsko de Vries <edskodevries at gmail.com> 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?
> |
> | _______________________________________________
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>
> _______________________________________________
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>
>  ** **
>
>  ** **
>
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