GHC plugin without registering the plugin

kudah kudahkukarek at gmail.com
Mon May 6 05:51:08 CEST 2013


Shouldn't it just work with
$GHC_PACKAGE_PATH or --package-db = dist/package.conf.inplace?

On Sun, 5 May 2013 14:31:20 -0700 Andrew Farmer <afarmer at ittc.ku.edu>
wrote:

> I've also been trying to find a good way to do this. I had a somewhat
> hacky driver that would use GHC to compile the plugin in a temporary
> directory, then create a custom package database with only that
> plugin and add that database to the stack of package databases when
> compiling the target program. The annoying part was creating the
> package description, as you need to determine which other packages
> the plugin depends on. However, it just occurred to me that "ghc
> --make" does this, so its probably a matter of finding the proper GHC
> API call to get the list of packages used to build the plugin and
> converting that into a package description.
> 
> Can anyone familiar with either the plugin API or Cabal/ghc-pkg
> comment on whether there is an easier way?
> 
> Thanks!
> Andrew
> 
> 
> On Sat, May 4, 2013 at 8:07 PM, Erik de Castro Lopo
> <mle+hs at mega-nerd.com>wrote:
> 
> > Hi all,
> >
> > I'm messing about with writing a GHC plugin and looking at the
> > documentation here:
> >
> >
> > http://www.haskell.org/ghc/docs/7.6.3/html/users_guide/compiler-plugins.html
> >
> > which states:
> >
> >     Plugins can be specified on the command line with the option
> >     -fplugin=module where module is a module in a registered package
> >     that exports a plugin.
> >
> > Is there anyway I can have a plugin in my local source tree rather
> > than being installed and registered? Not having to cabal install it
> > would make development and debugging somewhat easier.
> >
> > Cheers,
> > Erik
> > --
> > ----------------------------------------------------------------------
> > Erik de Castro Lopo
> > http://www.mega-nerd.com/
> >
> > _______________________________________________
> > ghc-devs mailing list
> > ghc-devs at haskell.org
> > http://www.haskell.org/mailman/listinfo/ghc-devs
> >



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