rust-lang / rust-lang/rust-analyzer
Implementation count in hover is always zero for structs defined in a macro
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A-ide
C-bug
- Dominant language
- Rust
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Description
macro_rules! fff {
() => {
struct St;
};
}
fff!();
trait Tr {}
impl Tr for St {}
Hover for St shows 0 implementation, but it should show 1. We see the impl for type checking proposes so I think it is a bug in the "Find implementations".
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 with the provided Rust macro reproduction and the rust-analyzer “Find implementations” path; compare its result with the type-checking impl lookup mentioned in the report. Done means hover for St reports one implementation for Tr.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100