Procedure to find all CST nodes in a given source range?

[mlyoung101]

Hi,

I'm trying to add a feature to my project that will allow the user to ignore certain diagnostics with a comment, similar to clang-tidy's NOLINTNEXTLINE.

I know that I can use the trivia attached to CST nodes to read the comment, so that's fine; but how can I actually find all the CST nodes that are within a given source range? The source range is provided by the diagnostic.

Alternatively, is it possible to query the exact CST token the diagnostic refers to, and then I can just walk it's hierarchy?

Cheers :)

[MikePopoloski]

slang doesn't store a mapping in that direction, so you'd have to build it yourself. Tools like https://github.com/hudson-trading/slang-server have to do this to provide an editor experience where you can click on a token and find it via source offset.

Also note that slang has a // slang lint_off comment handler; you can take a look at how that works too.