allow are not applied
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Description
Summary
While trying to do a code with #[allow(unused_variables)] i saw that it shows the warning message even with this line.
Reproducer
I tried this code:
#[allow(unused_variables)]
pub fn main () {
let a = 4;
return ()
}
Does the code make use of any (1.49) nightly feature ?
- Nightly
Godbolt link
https://godbolt.org/z/zhW6M4Yv9
Actual behavior
The current behavior is shows unused variables
Expected behavior
I expected to see is not seeing anything
GCC Version
f0558a0
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 compiling the Rust reproducer from the issue and compare its output with the Godbolt link. Trace how the gccrs frontend handles #[allow(unused_variables)] and add or update a regression test for this case; done means the unused-variable warning is suppressed.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100