rustfmt stopped formatting `const` items in macros
Open
Nobody has claimed this yet.
A-macros
C-bug
- Dominant language
- Rust
- Stars
- 7k
- Forks
- 1.1k
- Avg merge
- 2d 13h
- Merged PRs (30d)
- 24
Description
Test:
> echo "m!(const N: usize = 0;);" | rustup run beta rustfmt
m!(
const N: usize = 0;
);
> echo "m!(const N: usize = 0;);" | rustup run nightly rustfmt
m!(const N: usize = 0;);
> rustup run beta rustfmt -Vv
rustfmt 1.7.0-beta (f732c37b417 2024-01-12)
> rustup run nightly rustfmt -Vv
rustfmt 1.7.0-nightly (88189a71 2024-01-19)
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 running the shell reproducer with the beta and nightly rustfmt versions shown in the issue. Trace the formatting path for const items inside macros and identify where the version behavior diverges. Done means the regression is covered and rustfmt consistently handles this input as expected.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100