Defining optional globals doesn't trigger nil check warning

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

I have some code that runs in different environments that have different global variables available.

For example, environment1 may have a global table C_GameRules available with a function in it. environment2 does not have the global available.

I'm trying to write a meta file that makes this optional nature of this global available:

---@meta

---@type table?
C_GameRules = nil

---@return boolean
function C_GameRules.IsHardcoreActive() end

I've also tried to define a class, no change in behavior

Actual Behaviour

C_GameRules.IsHardcoreActive() does not trigger a need-nil-check warning, but the type of C_GameRules gets shown as table?

Reproduction steps

see above

Additional Notes

i don't want the inner field as nilable, environment 1 has "C_GameRules" as global available and the function is guaranteed to be in there, environment 2 has the global set to nil

Log File

No response

Tái hiện báo cáo trong Visual Studio Code Extension bằng cách sử dụng khai báo tệp meta Lua được示 và kiểm tra các chẩn đoán kiểm tra kiểu cho C_GameRules.IsHardcoreActive(). Hoàn thành khi một phần tử global tùy chọn tạo ra cảnh báo kiểm tra nil, trong khi hàm bên trong của nó vẫn không thể là nil.