rust-lang/rust-clippy

Move `excessive_nesting` to `pedantic`

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#14,923 opened on May 30, 2025

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Description

This was originally put in complexity but with a useless value set as the config option.

I don't really see this as being beneficial anymore as other lints, such as too_many_lines, could do the same, but are completely fine in pedantic and are probably acted upon when using #![warn(clippy::pedantic). I think we should do the same with a value like 6, which seems in the same general ballpark as too_many_lines' 100.

Contributor guide

Research direction
Find the definition of `excessive nesting` in the `complexity` module and move it to the `pedantic` module with a default threshold of 6.
Tech stack
rust
Domain
developer experience
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
RustClippy internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65