rust-lang / rust-lang/rust-clippy

Don't fire items_after_statements when the statement isn't used before its declaration

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#13,135 2 comments 1 reaction 0 assignees View on GitHub

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C-bug I-false-positive
Dominant language
Rust
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Description

Summary

I'm finding that items_after_statements makes my code more confusing by forcing me to put inner structs way before they are used (I do this often as a one-time thing to clarify a tuple). I believe it would make more sense to only fire this lint if the struct/function is actually used before it is declared.

Lint Name

items_after_statements

Reproducer

No response

Version

No response

Additional Labels

No response

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the implementation and tests for the items_after_statements lint. Read how declaration use-before-declaration is detected, then add coverage for declarations used only after their declaration; done means the lint no longer reports those cases while preserving its existing behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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