uvm-plaid / uvmhs Goto Github PK

Unless there is a reason why this cannot be done, it would allow using the errSetLoc type of techniques for implicit source location tracking.

Feels like it'd be nice to know where it failed when it does. @davdar

Happy to submit a PR if this is acceptable.

The project should document how to use the various monad transformers, and associated combinators.

Emphasis should be placed on ways in which transformers differ from popular packages like mtl. For example, no Traversable means that certain patterns are different.

The project should document what the required language extensions are for UVMHS, and briefly say what they are used for.

AFAICT, now that UVMHS uses Template Haskell's examineCode, it is no longer compatible with GHC < 9.

Attempting to compile with, say, 8.10.7 proceeds for a while before hitting such a symbol and complains that it does not exist.

I think adding a >= 4.15 lower bound to base would make this fail earlier.

The project should document the parser combinator library.

Perhaps an example of developing a parser with all the fixings — left recursion, location information, … — and text explaining as you go.

David D can spin up a parser very quickly, but others can’t.

The project should document how to interoperate with existing Haskell packages that don’t use UVMHS.

This could include things like…

• How to convert to / from Haskell types
• How to safely interact with infinite data structures (because UVMHS assumes strict Haskell)
• …

The following create a couple of issues:

1. For users with a dark terminal, the foreground text is often white or close, resulting in almost zero contrast between background and foreground.
2. Regardless of user background/foreground terminal, this also plays poorly with the current defaults, say for keywords.

In this screenshot, both effects can be seen, the double quotes, as well as the let keyword, are barely legible.

I feel like this ought to be configured via PrettyParams, so that users can at least override it.