rust-lang / rust-lang/rust-clippy
Lints to suggest deriving more traits
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A-lint
E-medium
T-middle
- Dominant language
- Rust
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Description
A few suggestions:
- If a type derives
Eq, it should also deriveHash. - If a type is trivial (e.g. a unit struct or an enum of only unit variants) we should suggest to implement
Copy,Eq,Default,Hash, and their dependencies. - If a type derives
PartialEqbut could also deriveEq, suggest derivingEq. - Similar to 3 but with
Ord.
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
The issue proposes four related groups of derive-trait lints but names no implementation files or tests. Start by locating the existing derive-related lint entry points and test conventions, then narrow the scope and define dependency and suggestion behavior for each case; done means the agreed suggestions are implemented with coverage for the listed type forms.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100