LuaLS / LuaLS/lua-language-server
For loop with negative step: false positive
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- Dominant language
- Lua
- Stars
- 4.4k
- Forks
- 442
- PR merge metrics
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Description
### How are you using the lua-language-server?
NeoVim
### Which OS are you using?
Windows WSL
### What is the issue affecting?
Diagnostics/Syntax Checking
### Expected Behaviour
Warning shouldn't be displayed
### Actual Behaviour
Warning is displayed
### Reproduction steps
```lua
local r = 1
for x = -r, 1 do
print(x)
end
```
### Additional Notes
Tested on 3.13.2.
### Log File
I am using nvim + mason, and it does not save any logs even with command line arguments.
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
Run the provided Lua snippet in LuaLS 3.13.2 through the reported Neovim setup and confirm the diagnostic under Diagnostics/Syntax Checking. Trace how numeric for loops are analyzed, then verify that this valid loop no longer produces the warning.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- lua, neovim
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100