From d7af8707026968887ea4ee3a4e6fa51fd4372033 Mon Sep 17 00:00:00 2001
From: Lewis Russell <lewis6991@gmail.com>
Date: Thu, 24 Sep 2026 13:30:07 +0100
Subject: fix(lua): enable nil-safety diagnostics in runtime code

Enable EmmyLua's need-check-nil diagnostic and resolve nullable values
through more precise types, explicit invariants, and guards for missing
runtime state. Keep analyzer-specific workarounds local and update the
affected API documentation.

Exclude the bundled re.lua from analysis so its nil-check warnings do
not fail CI.

AI-assisted
---
 runtime/lua/editorconfig.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'runtime/lua/editorconfig.lua')

diff --git a/runtime/lua/editorconfig.lua b/runtime/lua/editorconfig.lua
index 90baf784dc..c91f9ed04d 100644
--- a/runtime/lua/editorconfig.lua
+++ b/runtime/lua/editorconfig.lua
@@ -59,7 +59,7 @@
 
 local nvim_on = require('vim._core.util').nvim_on
 
---- @type table<string,fun(bufnr: integer, val: string, opts?: table)>
+--- @type table<string,fun(bufnr: integer, val: string, opts: table)>
 local properties = {}
 
 --- Modified version of the builtin assert that does not include error position information
-- 
cgit