heirline, wilder and winbar

[DrKGD]

Any winbar configuration made through heirline throws error E36: Not enough room on any second wilder prompt(s).

E5555: API call: Vim(append):Error executing lua callback: vim/_meta.lua:0: Vim:E36: Not enough room
stack traceback:
        [C]: in function 'nvim_set_option_value'
        vim/_meta.lua: in function '_set'
        vim/_meta.lua: in function '__newindex'
       ...te/pack/packer/start/heirline.nvim/lua/heirline/init.lua:28: in function <...te/pack/packer/start/heirline.nvim/lua/heirline/init.lua:27>

Any manual, global configuration, however, does not trigger aforementioned error.

-- Any statusline configuration, no winbar configuration
require('heirline').setup( ...  , nil )

vim.opt.winbar='%f'
-- or set winbar=%f

MRE (with packer)

-- Basic wilder configuration
use { "gelguy/wilder.nvim",
	event = 'CmdlineEnter',  -- Lazy loading on CmdlineEnter 
	config = function()
		local w = require('wilder')
		w.setup({modes = { '/', '?', ':'}})
	end }

use { "rebelot/heirline.nvim",
	config = function()
		require('heirline').setup({}, { provider = 'test'})
	end },

[DrKGD]

I suppose wilder creates a new buffer, along the lines of Wilder Popup %d and its buftype is nofile (from wilder vim_api.vim)

...
let l:buf = bufadd('[Wilder Popup ' . s:index . ']')
call bufload(l:buf)
call setbufvar(l:buf, '&buftype', 'nofile')
...

Thus I tried ignoring all nofile buffers in the winbar with no success

local bar = {
	condition = function()
		return not require('heirline.conditions').buffer_matches({
			buftype = { "nofile" },
		})
	end,

	provider = '%f'
}

require('heirline').setup({}, bar)

Am I missing something here?

[rebelot]

are you on latest nightly? neovim/neovim#19458 introduced several bugs when using local winbar. Please see #47 (comment) for a temporary fix

[DrKGD]

Damn, totally missed that ... thanks for the quick fix!

[rebelot]

related neovim/neovim#19464