From c50eaf5c9ad0a2db4e9403625df84ace4a51187b Mon Sep 17 00:00:00 2001
From: TJ DeVries <devries.timothyj@gmail.com>
Date: Wed, 17 Mar 2021 20:04:39 -0400
Subject: [PATCH] fix: Do not error with clearing namespace on clearing display

---
 lua/telescope/pickers/highlights.lua | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lua/telescope/pickers/highlights.lua b/lua/telescope/pickers/highlights.lua
index bbb06e4..2b6abfe 100644
--- a/lua/telescope/pickers/highlights.lua
+++ b/lua/telescope/pickers/highlights.lua
@@ -41,6 +41,14 @@ function Highlighter:hi_display(row, prefix, display_highlights)
 end
 
 function Highlighter:clear_display()
+  if not self
+      or not self.picker
+      or not self.picker.results_bufnr 
+      or not vim.api.nvim_buf_is_valid(self.picker.results_bufnr)
+        then
+    return
+  end
+
   a.nvim_buf_clear_namespace(self.picker.results_bufnr, ns_telescope_entry, 0, -1)
 end