Lint on `mod foo {}` inside of `foo.rs`
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@chenyukang is already working on this.
Since Oct 12, 2025.
A-lints
C-feature-request
D-newcomer-roadblock
E-mentor
P-low
T-compiler
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- Rust
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Description
One newcomer mistake is getting confused by the module system ending up with crate::module::module by having pub mod module {} inside of module.rs. We should have a lint that detects this case and gently nudges the user towards the more likely intended structure.
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