rust-lang / rust-lang/rust-clippy
new lint: catch division by zero in const range
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A-lint
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- Rust
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Description
for i in -2..2 {
let x = 1/i;
println!("{}", x);
}
my original rustc ticket: https://github.com/rust-lang/rust/issues/52696
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the Rust example in this issue and review the linked rustc issue #52696 to understand the intended division-by-zero diagnostic. Then inspect Clippy's existing lint infrastructure and tests to determine where constant ranges and divisions are analyzed. Done means the example is reported by a new lint without introducing false positives.
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
- 38/100