LuaLS / LuaLS/lua-language-server
Indexing anything other than tables and userdata should give an error
Open
Nobody has claimed this yet.
enhancement
- Dominant language
- Lua
- Stars
- 4.4k
- Forks
- 442
- PR merge metrics
- No merged PRs in 30d
Description
How are you using the lua-language-server?
NeoVim
Which OS are you using?
Linux
What is the issue affecting?
Type Checking
Expected Behaviour
Type error: attempt to index number
Actual Behaviour
No type error reported by LLS, runtime error: attempt to index number
Reproduction steps
a = 1
a.b = 2
Additional Notes
The inferred type is strange:
a: number {
b: unknown,
}
Log File
No response
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 provided Lua reproduction in the language server's type-checking workflow and trace how indexing expressions are handled. Done means indexing a number reports a type error like “attempt to index number” and does not infer a field on the number; no source file or test path is identified in the issue.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- lua
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100