rust-lang / rust-lang/rust-clippy
corner cases for `default_trait_access`
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C-enhancement
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Description
Description
Currently for code like
let foo = Default::default();
or
foo: Default::default(),
where foo is a variable of type Option<usize>
suggests to replace it with Option::default(), which is not wrong but suggesting None would be better. Can probably be extended to some other types in stdlib.
Version
rustc 1.70.0 (90c541806 2023-05-31)
binary: rustc
commit-hash: 90c541806f23a127002de5b4038be731ba1458ca
commit-date: 2023-05-31
host: x86_64-unknown-linux-gnu
release: 1.70.0
LLVM version: 16.0.2
Additional Labels
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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 by locating the default_trait_access lint and its existing tests. Reproduce the Option<usize> examples, then verify that the suggestion prefers None and assess which other standard-library types should receive equivalent handling.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- tooling
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100