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patch 9.0.1763: crash when passing invalid buffer to undotree()

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Problem:  crash when passing invalid buffer to undotree()
Solution: Use get_buf_arg() instead of tv_get_buf_from_arg().

closes: #12862
closes: #12830

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: zeertzjq <zeertzjq@outlook.com>
This commit is contained in:
zeertzjq
2023-08-20 18:35:10 +02:00
committed by Christian Brabandt
parent f9037f186a
commit ab9f2ecfd4
3 changed files with 21 additions and 12 deletions
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12
src/testdir/test_undo.vim
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@@ -134,6 +134,18 @@ func Test_undotree_bufnr()
call assert_notequal(d1, d)
call assert_equal(d2, d)
" error cases
call assert_fails('call undotree(-1)', 'E158:')
call assert_fails('call undotree("nosuchbuf")', 'E158:')
" after creating a buffer nosuchbuf, undotree('nosuchbuf') should
" not error out
new nosuchbuf
let d = {'seq_last': 0, 'entries': [], 'time_cur': 0, 'save_last': 0, 'synced': 1, 'save_cur': 0, 'seq_cur': 0}
call assert_equal(d, undotree("nosuchbuf"))
" clean up
bw nosuchbuf
" Drop created windows
set ul&
new