rust-lang / rust-lang/rust-clippy

lint lints that lint spans of different nodes than those currently visited

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A-lint E-hard T-AST
Dominant language
Rust
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Description

The way the *LintPass traits are structured, the #[allow(..)], #[warn(..)], #[deny(..)] annotations only are set within the check_* callback for the respective portion of the code. As such, finding a span_lint with a span that does not come from the currently visited node (e.g. Expr) should raise a warning.

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First steps

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  3. Fork the repository and make your change on a branch.
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Research direction

Read the *LintPass trait callbacks and the span_lint call sites involved in linting spans from nodes other than the currently visited node. Determine the intended warning behavior and its scope before making a change; done means such mismatched spans are detected consistently without disrupting valid lint spans.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
devtools
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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