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/vim/log.lua | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'runtime/lua/vim/log.lua')

diff --git a/runtime/lua/vim/log.lua b/runtime/lua/vim/log.lua
index 84fcdd0713..c9e00d32b5 100644
--- a/runtime/lua/vim/log.lua
+++ b/runtime/lua/vim/log.lua
@@ -104,8 +104,8 @@ local function default_format_func(min_level, level, ...)
     '[%s][%s] %s:%s',
     level_names[level],
     os.date(log_date_format),
-    info.short_src,
-    info.currentline
+    info and info.short_src or '?',
+    info and info.currentline or -1
   )
   local parts = { header }
   local argc = select('#', ...)
-- 
cgit