A comment on Introspective-Haskell

Thomas Bereknyei tomberek at gmail.com
Wed Dec 9 15:55:56 UTC 2015

This should be possible to start as a custom library. Appropriately
shimming the result back into TH. Then with some experience and lessons
learned we can investigate replacing TH with this new approach.

I ran across many similar issues with TH, haskell-src-exts,
haskell-src-meta, etc.

Levent: Would it be appropriate for us to start putting together this shim?
As Simon says in (https://ghc.haskell.org/trac/ghc/ticket/11081#comment:5)
we can go a long ways with a plethora of pattern synonyms.

On Tue, Dec 8, 2015 at 9:51 PM, Levent Erkok <erkokl at gmail.com> wrote:

> I just came across https://ghc.haskell.org/trac/ghc/ticket/11081, and the
> corresponding wiki-page:
> https://ghc.haskell.org/trac/ghc/wiki/TemplateHaskell/Introspective
> I think this is a terrific idea. In the past, I've tried both TH and
> haskell-src-exts to do relatively simple things, but ended-up abandoning
> them due to the inherent complexity of source level haskell that had very
> little to do with what I really cared about. Being able to get your hands
> on Core at the regular Haskell level would truly simplify life, and I
> suspect would open the flood-gates for a lot of people to develop extremely
> cool/useful artifacts, making the GHC/Haskell experience even better.
> I hope this idea is taken further and sees the light-of-day.
> Richard: Did you have any further thoughts about possible plans?
> -Levent.
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