From f5d1e1b2b3285c4caa0c7b09691f5d1511acb426 Mon Sep 17 00:00:00 2001
From: "Andy K. Massimino" <f8a663@normed.space>
Date: Wed, 12 Apr 2023 20:59:58 -0400
Subject: [PATCH] Fix crash on invalid nvim float buffer

re #282
---
 autoload/matchup/matchparen.vim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/autoload/matchup/matchparen.vim b/autoload/matchup/matchparen.vim
index a2d680a..5bf166c 100644
--- a/autoload/matchup/matchparen.vim
+++ b/autoload/matchup/matchparen.vim
@@ -789,7 +789,8 @@ function! s:do_offscreen_popup_nvim(offscreen) abort " {{{1
     endif
 
     if l:text_method
-      if !exists('s:float_bufnr')
+      if !exists('s:float_bufnr') || bufnr(s:float_bufnr) < 0
+        call s:close_floating_win()
         let s:float_bufnr = nvim_create_buf(0, 1)
       endif
       let l:bufnr = s:float_bufnr