rust-lang / rust-lang/rust-analyzer
feat: extension `Merge match arms`
Open
Nobody has claimed this yet.
C-feature
- Dominant language
- Rust
- Stars
- 16.9k
- Forks
- 2.2k
- Avg merge
- 1d 12h
- Merged PRs (30d)
- 72
Description
Add assist, Merge all match arms
Example
fn main() {
let n = 2;
$0match n {
0 => 1,
1 => 1,
2 => 2,
3 => 2,
4 => 3,
5 => 3,
_ => 0,
};
}
->
fn main() {
let n = 2;
match n {
0 | 1 => 1,
2 | 3 => 2,
4 | 5 => 3,
_ => 0,
};
}
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
No specific file or test is named. Start by searching rust-analyzer's existing match-expression assists and their tests, then use the issue's before-and-after example to define the expected transformation; done means the assist merges match arms with identical bodies as shown.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- developer-experience
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Quiet
- Clarity
- Clearly specified
- Newbie friendliness
- 68/100