Matchup adding random characters on the beginning of the buffer.

[zer09]

Explain the issue

When matchup_matchparen_offscreen method is set to popup, and you split the screen and go off screen and the paren matched, it will add some random character on the beginning of the file. Something like the image below.

1. What vim version are you using?

NVIM v0.10.0-dev-1284+gf67517bba-dirty
Build type: Release
LuaJIT 2.1.1695653777
Run "nvim -V1 -v" for more info
With tree-sitter

3. Steps to reproduce
   Open a file split the window, and scroll to the bottom until offscreen.
4. Expected behavior
   It should not add random characters on the first line of the buffer.
5. Observed behavior
   It add random characters on the first line of the buffer.

Minimal vimrc file

Please provide a minimal vimrc file that reproduces the issue. The
following should often suffice:

return {
	"andymass/vim-matchup",
	version = false,
	event = "VeryLazy",
	config = function()
		vim.g.matchup_matchparen_offscreen = {}
		vim.g.matchup_matchparen_deferred = 1
		vim.g.matchup_motion_override_Npercent = 0 -- enable vim default {count}%
	end,
}

[samtgarson]

I'm also getting this fairly frequently, and it's extremely frustrating 😅 it's a shame as the offscreen popup functionality is so useful most of the time.

It seems to be writing the contents of the bottom popup (including line number, sometimes repeated many times) to the top line of the file?

[kongjun18]

I also ran into this problem, but I couldn't reproduce it stably. I found that this BUG is caused by the text that should be written into the popup window being written into the buffer. The call chain is as follows.

Error detected while processing function <SNR>53_timer_callback[20]..7[153]..<SNR>53_do_offscreen[21]..<SNR>53_do_offscreen_popup_nvim[67]..<SNR>53_populate_floating_win[48]..<SNR>53_set_popup

I'm also getting this fairly frequently, and it's extremely frustrating 😅 it's a shame as the offscreen popup functionality is so useful most of the time.

It seems to be writing the contents of the bottom popup (including line number, sometimes repeated many times) to the top line of the file?

[sandeshghanta]

+1 to this issue, took a while to figure out which plugin was messing up my nvim buffers with same symptoms.

Currently have disabled plugin to bypass this issue.

[ray-x]

It took me a while to find out vim-matchup adding new line on top of my file. It exists in both neovim 0.9.x and 0.10. It might relate to cursor movement.

[andymass]

Can anyone please provide a configuration and reproduction steps?

[ray-x]

I saw same behavior as @samtgarson. This may relate to relatively large lua file(>300 loc). But I couldn't reproduce it stably.
my setup

      vim.g.matchup_enabled = true
      vim.g.matchup_surround_enabled = true
      -- vim.g.matchup_transmute_enabled = 1
      vim.g.matchup_matchparen_deferred = true
      vim.g.matchup_matchparen_offscreen = { method = 'popup' }
      vim.cmd([[nnoremap <c-s-k> :<c-u>MatchupWhereAmI?<cr>]])

-- treesitter
    matchup = {
      enable = enable, -- mandatory, false will disable the whole extension
    },

[CMOISDEAD]

Actually I have the same problem, but it happens only if I have activated matchup_matchparen_offscreen method = popup and vim.g.matchup_matchparen_deferred = 1, it happens that if I move to the end of the file these numbers appear at the beginning of the file.
It is also necessary to have some kind of window split ie. Neotree open

[mehalter]

I can also report that I'm still having this problem with both vim.g.matchup_matchparen_deferred = 1 and the offscreen method set to popup with a split open.

[mehalter]

@andymass is there any way to get this issue re-opened since the problem still persists?