How to turn LHExpr GhcPs into CoreExpr
ben at well-typed.com
Thu Jan 23 12:53:48 UTC 2020
It is slightly disheartening that this relatively simple use-case requires reaching so deeply into the typechecker.
If there really exusts no easier interface then perhaps we should consider adopting your elaborateExpr as part of the GHC API.
On January 23, 2020 4:04:03 AM EST, Richard Eisenberg <rae at richarde.dev> wrote:
>I don't know the exact semantics of the interactive context, etc., but
>that looks plausible. It won't give the *wrong* answer. :)
>Thanks for sharing!
>> On Jan 23, 2020, at 4:52 AM, Yiyun Liu <liuyiyun at terpmail.umd.edu>
>> Thank you all for your help! It turns out that I was missing the
>constraint solving and zonking step by desugaring the result of
>> I have the implementation of the function here
>Not sure if it's 100% correct but at least it works for all the
>examples I can come up with so far.
>> - Yiyun
>> On 1/22/20 7:09 AM, Andreas Klebinger wrote:
>>> I tried this for fun a while ago and ran into the issue of needing
>to provide a type environment containing Prelude and so on.
>>> I gave up on that when some of the calls failed because I must have
>missed to set up some implicit state properly.
>>> I didn't have an actual use case (only curiosity) so I didn't look
>further into it. If you do find a way please let me know.
>>> I would also support adding any missing functions to GHC-the-library
>to make this possible if any turn out to be required.
>>> As an alternative you could also use the GHCi approach of using a
>fake Module. This would allow you to copy whatever GHCi is doing.
>>> But I expect that to be slower if you expect to process many such
>>> Richard Eisenberg schrieb am 22.01.2020 um 10:36:
>>>> You'll need to run the expression through the whole pipeline.
>>>> 1. Parsing
>>>> 2. Renaming
>>>> 3. Type-checking
>>>> 3a. Constraint generation
>>>> 3b. Constraint solving
>>>> 3c. Zonking
>>>> 4. Desugaring
Sent from my Android device with K-9 Mail. Please excuse my brevity.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the ghc-devs