删除一些buffer之后再次执行Leaderf会触发vim.error: Vim:E315: ml_get: 无效的 lnum: 7

[roachsinai]

• vim or neovim?
  • [x] vim
  • [ ] neovim
• Output of vim --version or nvim --version: gvim-lily 8.2.2339-1
• Output of :echo has("python"): 0
• Output of :echo has("python3"): 1
• Output of :echo &pythondll(only vim, not neovim):
• Output of :echo &pythonthreedll(only vim, not neovim):libpython3.9.so.1.0
• Output of :py3 print(sys.version): 3.9.1
• Operating system:
  • [x] Linux
  • [ ] Mac OS X
  • [ ] Windows
  • [ ] Etc.

Describe your question, feature request, or bug.

使用了Leaderf对asynctasks的扩展，先进行代码编译会打开一个窗口，然后进行代码执行再打开一个窗口。之后使用map同时关闭编译窗口和执行窗口。再次打开leaderf对于asynctasks的扩展时报错：

minimal vimrc

.vimrc

" 定义快捷键的前缀，即<leader>
let mapleader=" "
command! BufOnly silent! execute "%bd|e#|bd#"
nnoremap <silent> <leader>bo :BufOnly<CR>

call plug#begin('~/.vim/plugged')
Plug 'Yggdroot/LeaderF', { 'do': ':LeaderfInstallCExtension' }
Plug 'skywind3000/asyncrun.vim'
Plug 'skywind3000/asynctasks.vim'
call plug#end()

set hidden
let g:Lf_RootMarkers = ['.project', '.root', '.svn', '.git', '.hg']

let g:Lf_GtagsAutoGenerate = 1
let g:Lf_Gtagslabel = 'native-pygments'
let g:Lf_GtagsSource = 2
let g:Lf_GtagsfilesCmd = {
        \ '.git': 'git ls-files --recurse-submodules',
        \ '.hg': 'hg files',
        \ 'default': 'rg --no-messages --files'
        \}

let g:Lf_DefaultExternalTool='rg'
let g:Lf_IgnoreCurrentBufferName = 1
let g:Lf_NormalMap = {
	\ "File":   [["<ESC>", ':exec g:Lf_py "fileExplManager.quit()"<CR>']],
	\ "Buffer": [["<ESC>", ':exec g:Lf_py "bufExplManager.quit()"<CR>']],
	\ "Mru":    [["<ESC>", ':exec g:Lf_py "mruExplManager.quit()"<CR>']],
	\ "Tag":    [["<ESC>", ':exec g:Lf_py "tagExplManager.quit()"<CR>']],
	\ "BufTag":    [["<ESC>", ':exec g:Lf_py "bufTagExplManager.quit()"<CR>']],
	\ "Function":    [["<ESC>", ':exec g:Lf_py "functionExplManager.quit()"<CR>']],
	\ "Colorscheme":    [["<ESC>", ':exec g:Lf_py "colorschemeExplManager.quit()"<CR>']],
	\ }

let g:Lf_MruMaxFiles = 2048
let g:Lf_StlSeparator = { 'left': "\ue0b0", 'right': "\ue0b2", 'font': ''}
let g:Lf_StlColorscheme = 'powerline'

let g:Lf_WorkingDirectoryMode = 'Ac'
let g:Lf_WindowHeight = 0.30
let g:Lf_ShowRelativePath = 1
let g:Lf_CursorBlink = 0
let g:Lf_JumpToExistingWindow = 0

let g:Lf_WildIgnore = {
            \ 'dir': ['.svn','.git','.hg'],
            \ 'file': ['*.sw?','~$*','*.bak','*.exe','*.o','*.so','*.py[co]']
			\ }

let g:Lf_MruFileExclude = ['*.so', '*.exe', '*.py[co]', '*.sw?', '~$*', '*.bak', '*.tmp', '*.dll']

if (exists('*popup_create') && has('patch-8.1.2000')) || has('nvim-0.4')
	let g:Lf_WindowPosition = 'popup'
    let g:Lf_PreviewInPopup = 1
endif

"----------------------------------------------------------------------
" keymap
"----------------------------------------------------------------------
let g:Lf_ShortcutF = '<leader>e'
" noremap <leader>el :LeaderfFile %:p:h<CR>
let g:Lf_ShortcutB = '<leader>fb'

let g:asyncrun_open = 6
let g:asyncrun_rootmarks = ['.git', '.svn', '.root', '.project', '.hg']

" https://github.com/skywind3000/asynctasks.vim/blob/master/README-cn.md#%E5%A4%9A%E7%A7%8D%E8%BF%90%E8%A1%8C%E6%A8%A1%E5%BC%8F
let g:asynctasks_term_pos = 'bottom'
let g:asynctasks_term_rows = 10    " 设置纵向切割时，高度为 10
let g:asynctasks_term_cols = 80    " 设置横向切割时，宽度为 80

" https://github.com/skywind3000/asynctasks.vim/wiki/UI-Integration#leaderf
noremap <tab>t :Leaderf --nowrap task<cr>
let g:asynctasks_profile = 'release'

"----------------------------------------------------------------------
" source task
"----------------------------------------------------------------------
function! LfTaskSource(...)
	let rows = asynctasks#source(&columns * 48 / 100)
	let source = []
	for row in rows
		let name = row[0]
		let source += [name . '  ' . row[1] . '  : ' . row[2]]
	endfor
	return source
endfunc


function! LfTaskAccept(line, arg)
	let pos = stridx(a:line, '<')
	if pos < 0
		return
	endif
	let name = strpart(a:line, 0, pos)
	let name = substitute(name, '^\s*\(.\{-}\)\s*$', '\1', '')
	redraw
	if name != ''
		exec "AsyncTask " . name
	endif
endfunc

function! LfTaskDigest(line, mode)
	let pos = stridx(a:line, '<')
	if pos < 0
		return [a:line, 0]
	endif
	let name = strpart(a:line, 0, pos)
	return [name, 0]
endfunc

function! LfWinInit(...)
	setlocal nonumber
	setlocal nowrap
endfunc


let g:Lf_Extensions = get(g:, 'Lf_Extensions', {})
let g:Lf_Extensions.task = {
			\ 'source': string(function('LfTaskSource'))[10:-3],
			\ 'accept': string(function('LfTaskAccept'))[10:-3],
			\ 'get_digest': string(function('LfTaskDigest'))[10:-3],
			\ 'highlights_def': {
			\     'Lf_hl_funcScope': '^\S\+',
			\     'Lf_hl_funcDirname': '^\S\+\s*\zs<.*>\ze\s*:',
			\ },
			\ 'after_enter': string(function('LfWinInit'))[10:-3],
		\ }

~/.vim/tasks.ini

# https://github.com/skywind3000/vim/blob/master/tasks.ini
# vim: set noet fenc=utf-8 sts=4 sw=4 ts=4 ft=dosini:

[file-build:release]
command:c/linux=gcc -O2 -Wall "$(VIM_FILEPATH)" -o "$(VIM_PATHNOEXT).out" -lstdc++ -lm -msse3 -ldl -lpthread
command:cpp/linux=g++ -O2 -Wall "$(VIM_FILEPATH)" -o "$(VIM_PATHNOEXT).out" -lstdc++ -lm -msse3 -ldl -lpthread
output=quickfix
# 结束时发送 QuickFixCmdPost make 触发 errormarker
auto=make
save=2

[file-build:debug]
command:c/linux=gcc "$(VIM_FILEPATH)" -o "$(VIM_PATHNOEXT).out" -lstdc++ -lm -msse3 -ldl -lpthread -g
command:cpp/linux=g++ "$(VIM_FILEPATH)" -o "$(VIM_PATHNOEXT).out" -lstdc++ -lm -msse3 -ldl -lpthread -g
output=quickfix
auto=make
save=2

[file-run]
command:c,cpp="$(VIM_PATHNOEXT).out"
output=terminal
cwd=$(VIM_FILEDIR)
save=2

[file-run-gpu]
command:python/linux=optirun /home/roach/.pyenv/versions/3.7.4/envs/nn/bin/python "$(VIM_FILENAME)"
output=terminal
cwd=$(VIM_FILEDIR)
save=2

[show-python-script-bytecode]
command:python/linux=/home/roach/.pyenv/versions/3.7.4/envs/nn/bin/python -m dis "$(VIM_FILENAME)"
output=terminal
cwd=$(VIM_FILEDIR)
save=2

[project-build:release]
command=make
cwd=$(VIM_ROOT)

[project-build:debug]
command=make debug=1
cwd=$(VIM_ROOT)

[project-run]
command=make run
cwd=$(VIM_ROOT)
output=terminal

[project-test]
command=make test
cwd=$(VIM_ROOT)
output=terminal

[project-clean]
command=make clean
cwd=$(VIM_ROOT)
output=terminal

tt.cpp

#include <iostream>
using namespace std;

class Base1 {
public:
    int ibase1;
    Base1():ibase1(10) {}
    virtual void f() { cout << "Base1::f()" << endl; }
    virtual void g() { cout << "Base1::g()" << endl; }
    virtual void h() { cout << "Base1::h()" << endl; }

};

class Base2 {
public:
    int ibase2;
    Base2():ibase2(20) {}
    virtual void f() { cout << "Base2::f()" << endl; }
    virtual void g() { cout << "Base2::g()" << endl; }
    virtual void h() { cout << "Base2::h()" << endl; }
};

class Base3 {
public:
    int ibase3;
    Base3():ibase3(30) {}
    virtual void f() { cout << "Base3::f()" << endl; }
    virtual void g() { cout << "Base3::g()" << endl; }
    virtual void h() { cout << "Base3::h()" << endl; }
};

class Derive : public Base1, public Base2, public Base3 {
public:
    int iderive;
    Derive():iderive(100) {}
    virtual void f() { cout << "Derive::f()" << endl; }
    virtual void g1() { cout << "Derive::g1()" << endl; }
};

int main()
{
    Derive d;
    cout << (void*)&d << endl;
    Base1* p;
    p = (Base1*) &d;
    cout << (void*)p << endl;

	return 0;
}

Steps to reproduce

1. vim tt.cpp
2. 执行快捷键<tab>t调出leaderf对asynctask的扩展窗口直接<Enter>进行编译
3. 同样调出扩展窗口执行第二选项，执行编译的结果
4. <C-W>k切换到tt.cpp对应的窗口，执行映射<leader>bo关闭其他的buffer
5. <tab>t报错

More infos

操作系统 Manjaro Linux，安装的vim包含了最新的vim提交。

[Yggdroot]

我在我的环境上用你的配置没有复现。vim用的是8.2.2282.

[Yggdroot]

8.2.2339也没有复现。

[roachsinai]

Y大，你用的是哪个发行版，还有终端。我看看能不能找到对应的环境试试。因为我这里目前是稳定复现的。

[Yggdroot]

centOS 7, gnome. 我觉得跟这些可能没关系。 既然你那里可以稳定复现，可以尝试不用LeaderF能不能复现，就像https://github.com/vim/vim/issues/7598 里面的做法。

[roachsinai]

嗯嗯。

[roachsinai]

把BufOnly换成下面的命令没有错误，

" https://github.com/vim-scripts/BufOnly.vim/blob/master/plugin/BufOnly.vim

command! -nargs=? -complete=buffer -bang Bonly
    \ :call BufOnly('<args>', '<bang>')
command! -nargs=? -complete=buffer -bang BOnly
    \ :call BufOnly('<args>', '<bang>')
command! -nargs=? -complete=buffer -bang Bufonly
    \ :call BufOnly('<args>', '<bang>')
command! -nargs=? -complete=buffer -bang BufOnly
    \ :call BufOnly('<args>', '<bang>')

function! BufOnly(buffer, bang)
	if a:buffer == ''
		" No buffer provided, use the current buffer.
		let buffer = bufnr('%')
	elseif (a:buffer + 0) > 0
		" A buffer number was provided.
		let buffer = bufnr(a:buffer + 0)
	else
		" A buffer name was provided.
		let buffer = bufnr(a:buffer)
	endif

	if buffer == -1
		echohl ErrorMsg
		echomsg "No matching buffer for" a:buffer
		echohl None
		return
	endif

	let last_buffer = bufnr('$')

	let delete_count = 0
	let n = 1
	while n <= last_buffer
		if n != buffer && buflisted(n)
			if a:bang == '' && getbufvar(n, '&modified')
				echohl ErrorMsg
				echomsg 'No write since last change for buffer'
							\ n '(add ! to override)'
				echohl None
			else
				silent exe 'bdel' . a:bang . ' ' . n
				if ! buflisted(n)
					let delete_count = delete_count+1
				endif
			endif
		endif
		let n = n+1
	endwhile

	if delete_count == 1
		echomsg delete_count "buffer deleted"
	elseif delete_count > 1
		echomsg delete_count "buffers deleted"
	endif

endfunction

[Yggdroot]

你的这个.vimrc，我不设一下set nocp都没法跑，你确定你那边没问题？

[roachsinai]

我这里第一次打开vimrc,可看到内容是完全一样的，应该是没有问题，用的gvim.

然后是复现。

---

我这里还有一种情况在:Leaderf file会遇到ml_get. 情况有点特殊，存在某些文件名组合的时候会出现。感觉和 https://github.com/vim/vim/issues/7598 有点像，但是用那里的方法没有办法脱离leaderf复现。

[Yggdroot]

我用vim -u vimrc tt.cpp 就会报错。 vimrc就是你那个vimrc。

[Yggdroot]

我用vim -u vimrc tt.cpp 就会报错。 vimrc就是你那个vimrc。

-u vimrc 会把compatible 设上。

[Yggdroot]

非popup模式可以出现吗？

[roachsinai]

非popup模式可以出现吗？

非popup没有错误。

[Yggdroot]

终端vim可以出现吗？我一直在终端vim上试的。 换个环境能复现吗？

[roachsinai]

我就是在终端中用的gvim，然后卸载gvim安装vim也可以复现。

---

我这几天改成不用popup了，目前没有出现过ml_get的问题。因为在其他地方popup也出现过ml_get的问题。其他，发行版还没有试验。