`need-check-nil` for `self`

[berkcebi]

Hey there, I use the language server VS Code extension for my Playdate project and it's been super helpful — thanks for your great work. 🙌

Since the latest release, I noticed that all the self calls I make are now flagged as Lua Diagnostics (need-check-nil). I'm not familiar with the internals of this diagnostic so I'm not sure if this is intended or not. Here's a sample:

class("Adventurer", { troops = {} }).extends()

function Adventurer:addTroop(troop)
    table.insert(self.troops, troop)
end

Here the self.troops call in the addTroop function now gets flagged as Lua Diagnostics (need-check-nil). (Playdate's class implementation can be found in their SDK.)

Screenshots

Environment

• OS: macOS
• Client: VS Code

[berkcebi]

In the sample I provided above, I realized adding Adventurer = {} above the class call solves the problem.