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9443d39941
Problem: Empty group in 'tabline' may cause using an invalid pointer.
Solution: Set the group start position. (closes vim/vim#6505)
f56c95fdad
92 lines
1.9 KiB
VimL
92 lines
1.9 KiB
VimL
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source shared.vim
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func TablineWithCaughtError()
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let s:func_in_tabline_called = 1
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try
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call eval('unknown expression')
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catch
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endtry
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return ''
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endfunc
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func TablineWithError()
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let s:func_in_tabline_called = 1
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call eval('unknown expression')
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return ''
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endfunc
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func Test_caught_error_in_tabline()
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let showtabline_save = &showtabline
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set showtabline=2
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let s:func_in_tabline_called = 0
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let tabline = '%{TablineWithCaughtError()}'
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let &tabline = tabline
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redraw!
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call assert_true(s:func_in_tabline_called)
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call assert_equal(tabline, &tabline)
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set tabline=
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let &showtabline = showtabline_save
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endfunc
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func Test_tabline_will_be_disabled_with_error()
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let showtabline_save = &showtabline
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set showtabline=2
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let s:func_in_tabline_called = 0
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let tabline = '%{TablineWithError()}'
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try
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let &tabline = tabline
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redraw!
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catch
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endtry
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call assert_true(s:func_in_tabline_called)
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call assert_equal('', &tabline)
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set tabline=
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let &showtabline = showtabline_save
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endfunc
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func Test_redrawtabline()
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if has('gui')
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set guioptions-=e
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endif
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let showtabline_save = &showtabline
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set showtabline=2
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set tabline=%{bufnr('$')}
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edit Xtabline1
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edit Xtabline2
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redraw
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call assert_match(bufnr('$') . '', Screenline(1))
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au BufAdd * redrawtabline
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badd Xtabline3
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call assert_match(bufnr('$') . '', Screenline(1))
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set tabline=
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let &showtabline = showtabline_save
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au! Bufadd
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endfunc
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function EmptyTabname()
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return ""
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endfunction
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function MakeTabLine() abort
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let titles = map(range(1, tabpagenr('$')), '"%( %" . v:val . "T%{EmptyTabname()}%T %)"')
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let sep = 'あ'
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let tabpages = join(titles, sep)
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return tabpages .. sep .. '%=%999X X'
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endfunction
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func Test_tabline_empty_group()
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" this was reading invalid memory
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set tabline=%!MakeTabLine()
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tabnew
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redraw!
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tabclose
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set tabline=
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endfunc
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" vim: shiftwidth=2 sts=2 expandtab
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