table validation is not working as expected

[kuxynator]

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

[tomlau10]

Seems duplicated as the following issues:

• a comment within the mega thread about exact class
  [Feature Request] Add a strong typed struct/class that cannot assign a new field that is not defined in the struct/class. #1990 (comment)
• Exact classes can have fields injected when used as parameters to funcitons #2288
• Table literals aren't properly checked for field injections and missing fields #2802

---

Meanwhile, I think the undefined-field check is unrelated here. 🤔
It is for checking if the code tries to index an undefined field:

	---@type Foo
	local entity = {  --  <--expected error "bar  is missing"
	}
	print(entity.x) --> Undefined field `x`.
	
	---@class (exact) Foo
	---@field bar string