LuaLS / LuaLS/lua-language-server

Packing multiple returns into a table only shows first return value

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Dominant language
Lua
Stars
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Forks
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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?

Type Checking

Expected Behaviour

The code below should show { [1]: string, [2]: number, [3]: table }

Actual Behaviour

image

Reproduction steps
---@return string foo
---@return number bar
---@return table baz
function test()
    return "foo", 123, {};
end;

local stuff = { test() };
Additional Notes

No response

Log File

No response

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue in the Visual Studio Code extension using the supplied Lua function and table-construction snippet, then trace the type-checking path for packed multiple returns. Done means the inferred table reports string at index 1, number at index 2, and table at index 3 instead of only the first return value.

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
Mostly clear
Newbie friendliness
45/100

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