more advanced reference queries

[oriongonza]

This would be an LSP extension, of course.

Rustdoc allows for really nice queries, like -> MyTy that returns all functions that return that type.
I'd love to have that in my editor, I could configure it so that I can see all functions that return this type with a click.

Likewise for all functions that take this as an argument, etc.

Rustdoc seems to have a DSL for this, could r-a have a similar thing?

[ChayimFriedman2]

I would definitely love to provide more comprehensive search. It doesn't need to be a separate feature, it can be the normal "workspace symbols". Unfortunately, VSCode peculiars prevent that; this is tracked at microsoft/language-server-protocol#2091.