LuaLS / LuaLS/lua-language-server

table validation is not working as expected

Open
#3,040 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

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?

Type Checking

Expected Behaviour

"inject-field" or "undefined-field" should show an error in table definition

Actual Behaviour
	"Lua.diagnostics.severity": {
		"inject-field": "Error",
		"undefined-field": "Error"
		"missing-fields": "Error"  // <-this works
	},
	---@type Foo
	local entity = {  --  <--expected error "bar  is missing"
		here_should_be_an_error ="but is not"
	}
	
	---@class (exact) Foo
	---@field bar string
Reproduction steps
  1. Go to '...'
  2. Click '...'
  3. See error '...'
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

Start by reproducing the configuration and Lua snippet in the Visual Studio Code extension on Windows, then inspect which diagnostics are emitted for the exact class and table definition. Done means the expected field-related error is reported for the shown mismatch, with behavior verified against the configured diagnostic severities.

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
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.