LuaLS / LuaLS/lua-language-server
The overload of arguments in the function has ceased to be correctly determined
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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?
Visual Studio Code Extension (sumneko.lua)
Which OS are you using?
Windows
What is the issue affecting?
Annotations, Type Checking, Hover, Other
Expected Behaviour

Actual Behaviour

Reproduction steps
---@enum Enum
local Enum =
{
ENUM_1 = 1,
ENUM_2 = 2
}
---@class Test
Test = {};
---@param id integer
---@return Test
function Test:New(id)
return setmetatable({}, { __index = self });
end
---@param enumId Enum
---@return Test
function Test:New(enumId)
return setmetatable({}, { __index = self });
end
local test = Test:New(Enum.ENUM_1);
Additional Notes
No response
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 supplied Lua reproduction in the Visual Studio Code extension and inspect the annotations, type checking, and hover results for the two Test:New overloads. Compare the result with the expected and actual screenshots; done means the call with Enum.ENUM_1 selects the enum overload correctly without losing the integer overload.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- lua, vscode
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100