Thanks Joachim, this document is extremely helpful. I'm also pretty
satisfied about the current state. I'll be a bit grumpy about GADTs and
type families for a while, I guess. But since this is the first GHC20XX and
we decided to be pretty conservative, it's fine not to leave some out.
We're still rolling nearly 40 extensions in. It's nearly half of the
Haskell 98 joke. This is pretty decent progress, I'd say.
On Wed, Dec 23, 2020 at 12:15 PM Joachim Breitner
Hi,
Am Mittwoch, den 23.12.2020, 10:07 +0000 schrieb Simon Peyton Jones via ghc-steering-committee:
Simon, is this sufficient that it can replace manually maintaining the Google doc?
Thank you! Yes, it's 90% as good which is probably enough. Can you put them in a specified order rather than alphabetical? (Having "Class and instance decls" so far from "Types" is odd.)
Tricky. Maybe I can parse docs/users_guide/exts.rst and use the order of that file (putting all those that are _not_ part of that file afterwards).
… ok, done. (If the order is now unsuitable I hope that we can improve that at the source, in the GHC docs :-))
TypeApplications has nothing to do with Patterns.
Hmm, this is because GHC’s master
users_guide/exts/patterns.rst
mentions type_application. This glitch will go away once someone merges https://gitlab.haskell.org/ghc/ghc/-/merge_requests/4673
Why is DeriveGeneric under "Misc" rather than "Deriving"?
Because it’s official place in the documentation at
https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/generics.html#extens... is in
Docs » 6. Language extensions » 6.19. Miscellaneous » 6.19.3. Generic programming
What is the difference between "Other" and "Misc"?
Miscellaneous is when I find the extension in https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/misc.html
Other is when my script can’t make sense of which section it belongs to. This happens when the documentation isn’t grouped under a dedicated header; for example
https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/ffi.html#extension-F... has
Docs » 6. Language extensions » 6.17. Foreign function interface (FFI)
I guess in that case I should try to take the title of that section…
… done, no Other shows up any more.
It would be helpful if GHC would publish a fully machine-readable file with all the meta data about extensions:
* Name * Since which version * Category * Link to docs * Implied extensions * Part of Haskell98? Part of Haskell2010? Part of the “default set”?
Until we have that, I guess I'll continue scraping the `.rst` files.
Cheers, Joachim -- Joachim Breitner mail@joachim-breitner.de http://www.joachim-breitner.de/
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