@field private in @meta file triggers warning even when accessed within the same class

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

Expected Behaviour

When defining a class in a ---@meta file with @field private annotations, the Lua language server warns about accessing those private fields even when they are accessed within the implementation of the same class (just in a separate file). This makes private fields effectively unusable if you're organizing types in meta files.

The language server should not warn about access to @field private fields when they are accessed within the implementation of the class they belong to, even if that implementation is in a separate file.

I think this is by design rather than a bug, so maybe this is a feature request?

Actual Behaviour

Even though I'm accessing the private field in the implementation of that class, I see a warning:

Reproduction steps

1. In types.lua (meta file)

---@meta

---@class (exact) ModuleMixin
---@field private __loaded boolean
---@field Load fun(self)
---@field IsLoaded fun(self): boolean
---@field Init fun(self)

2. ModuleMixin.lua (implementation)

---@type SmartChat.ModuleMixin
local ModuleMixin = {}

function ModuleMixin:Init()
  self.__loaded = false  -- <-- LuaLS warns that __loaded is private
end

Additional Notes

I use a @meta file to separate type annotations from implementation, which is common in larger projects. This issue makes it difficult to use private meaningfully unless everything is co-located in the same file, which defeats the purpose of a metadata/type declaration file.

Would it be possible to make private refer to "the class definition context" rather than "the file only"?

Thanks!

Log File

No response

使用 types.lua 和 ModuleMixin.lua 示例重现警告，先从 language server 中的 private 字段诊断开始。跟踪类声明及其实现文件是如何关联的。当从实现文件进行访问时不再产生警告，同时其他位置的 private 字段检查仍保持不变时，即可视为完成。