rust-lang / rust-lang/rust-analyzer
Properly implement `builtin#offset_of`
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A-ide
A-parser
C-feature
- Dominant language
- Rust
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Description
We already have the rough parts implemented, but our parse seems to be wrong and the IDE layer needs some help figuring out the syntax as stuff like std::mem::offset_of!(Option<&u8>, Some.0);/builtin#offset_of(Option<&u8>, Some.0); currently errors with parse errors and Some being unresolved.
The macro for this stabilizes in 3 days so
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 reading the existing builtin#offset_of parsing and IDE-layer handling, then reproduce the parse errors with the two offset_of examples in the issue. Done means both forms parse correctly and Some is resolved rather than reported as unresolved.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- rust
- Domain
- compilers, devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100