Unable to use @enum or @alias type in table index (index signature)

[tmillr]

I don't know if this is intended or not, but IIRC this is possible in typescript.

---@enum idx
local enum = { a = 'a', b = 'b' }

---@param tbl table<idx, string>
local function x(tbl) end

When calling x with a table (e.g. x({ | })), I expect to receive completion for a and b, but I don't get that.

[tmillr]

Surprisingly, it doesn't work with @alias either -_-.

I guess @alias doesn't actually create an "alias".

[tomlau10]

Some similar issues:

• Indexing a table by an enum's value #2410
• The type of keys used to index [] tables is not checked #2610
• vscode does not list server-provided completion items. #2783

[wiredmatt]

This used to work perfectly fine, what broke it? I remember using this december last year with no issue at all. Is it the LSP or VS Code?

[tmillr]

Is it the LSP or VS Code?

LSP. I don't use vscode.