Coccinelle files generated by Clippy?

[leonardo-m]

An idea is to add a switch to Clippy to make it generate a Coccinelle file that fixes a good part of the problems that Clippy has found in a source file.

Info about the Coccinelle tool for Rust:

https://gitlab.inria.fr/coccinelle/coccinelleforrust/

https://docs.kernel.org/dev-tools/coccinelle.html

https://lwn.net/SubscriberLink/991399/8bfb2ec24205dbaa/

https://kangrejos.com/2024/Coccinelle%20for%20Rust.pdf

[y21]

This sounds like a problem that's already solved by cargo clippy --fix? Or is this doing something else?

If not, I feel like this should either be implemented in rustc, or more realistically, as a separate tool (you can get warnings and suggestions from rustc in a JSON format with --error-format=json).
Clippy warnings and suggestions are no different from rustc's suggestions so if this exists this could trivially also work for rustc warnings and any other linter/tool that uses the compiler APIs for emitting suggestions.