From 3ac76977bca5ce204fea856d69d52895f67332e5 Mon Sep 17 00:00:00 2001
From: Kira Kawai <66677201+ras0q@users.noreply.github.com>
Date: Fri, 2 Jan 2026 15:49:28 +0900
Subject: fix(diagnostic): check for extmark in get_logical_pos #37127

Problem: The function get_logical_pos did not account for the possibility that a diagnostic might not have an associated extmark, leading to potential errors or incorrect behavior.

Solution: Add a check for diagnostic._extmark_id and return the logical positions directly if it does not exist.
---
 runtime/lua/vim/diagnostic.lua | 4 ++++
 1 file changed, 4 insertions(+)

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

diff --git a/runtime/lua/vim/diagnostic.lua b/runtime/lua/vim/diagnostic.lua
index 002d9a63cb..37089f972e 100644
--- a/runtime/lua/vim/diagnostic.lua
+++ b/runtime/lua/vim/diagnostic.lua
@@ -655,6 +655,10 @@ local sign_highlight_map = make_highlight_map('Sign')
 --- @return integer end_col
 --- @return boolean valid
 local function get_logical_pos(diagnostic)
+  if not diagnostic._extmark_id then
+    return diagnostic.lnum, diagnostic.col, diagnostic.end_lnum, diagnostic.end_col, true
+  end
+
   local ns = M.get_namespace(diagnostic.namespace)
   local extmark = api.nvim_buf_get_extmark_by_id(
     diagnostic.bufnr,
-- 
cgit