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@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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