From 2e493151da8b3d184eb87af2178ccafcf4b66f87 Mon Sep 17 00:00:00 2001
From: Caleb Maclennan <caleb@alerque.com>
Date: Sat, 23 Apr 2022 13:34:29 +0300
Subject: [PATCH] fix: Exempt special builtin _ENV from 214 warning

---
 src/luacheck/stages/detect_unused_locals.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/luacheck/stages/detect_unused_locals.lua b/src/luacheck/stages/detect_unused_locals.lua
index 740433be..01ce3328 100644
--- a/src/luacheck/stages/detect_unused_locals.lua
+++ b/src/luacheck/stages/detect_unused_locals.lua
@@ -152,7 +152,7 @@ local function detect_unused_local(chstate, var)
    elseif #var.values == 1 then
       local value = var.values[1]
 
-      if var.hint_unused then
+      if var.hint_unused and var.name ~= "_ENV" then
          if value.used then
             chstate:warn_var("214", var)
          end