Array type matches any table

How are you using the lua-language-server?

Other

Which OS are you using?

Linux

What is the issue affecting?

Type Checking

Expected Behaviour

When assigning a class/key-value table to a type defined as an array, a diagnostics error should be raised.

Actual Behaviour

No diagnostics error is raised.

Reproduction steps

local dict = {a = 'a'}

---@type number[]
local array = dict

Observe that no diagnostics error is raised when assigning dict to array, which is defined as an array.

Additional Notes

lua-langauge-server should check for the presence of non-integer indices in a table. If there are any, the table should not match the array type.

I believe the present issue is the underlying issue in #1721.

Version

3.13.6-1

この issue ではソースファイルもテストも指定されていません。まず、提供されている Lua の再現コードを lua-language-server 3.13.6-1 で実行し、テーブルから配列への代入における型チェックの経路を追跡してください。整数でないキーを含むテーブルに対して diagnostic が報告され、有効な配列は引き続き受け入れられれば完了です。