From 838631e29ef3051d6117b3d5c340d2be9f1f29b4 Mon Sep 17 00:00:00 2001
From: Gregory Anders <8965202+gpanders@users.noreply.github.com>
Date: Sat, 1 Jan 2022 12:58:34 -0700
Subject: fix(diagnostic): improve validation for list arguments (#16855)

Function arguments that expect a list should explicitly use tbl_islist
rather than just checking for a table. This helps catch some simple
errors where a single table item is passed as an argument, which passes
validation (since it's a table), but causes other errors later on.
---
 runtime/lua/vim/shared.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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

diff --git a/runtime/lua/vim/shared.lua b/runtime/lua/vim/shared.lua
index 133f7e64ac..e170befa4c 100644
--- a/runtime/lua/vim/shared.lua
+++ b/runtime/lua/vim/shared.lua
@@ -592,7 +592,7 @@ do
         -- Check user-provided validation function.
         local valid, optional_message = types(val)
         if not valid then
-          local error_message = string.format("%s: expected %s, got %s", param_name, (spec[3] or '?'), val)
+          local error_message = string.format("%s: expected %s, got %s", param_name, (spec[3] or '?'), tostring(val))
           if optional_message ~= nil then
             error_message = error_message .. string.format(". Info: %s", optional_message)
           end
-- 
cgit