Patch 8.2.4217

[Bram Moolenaar]

Patch 8.2.4217
Problem: Illegal memory access when undo makes Visual area invalid.
Solution: Correct the Visual area after undo.
Files: src/undo.c, src/testdir/test_visual.vim


*** ../vim-8.2.4216/src/undo.c 2022-01-08 16:19:18.509639849 +0000
--- src/undo.c 2022-01-25 18:23:16.267308948 +0000
***************
*** 3029,3034 ****
--- 3029,3036 ----
}
}
#endif
+ if (VIsual_active)
+ check_pos(curbuf, &VIsual);

smsg_attr_keep(0, _("%ld %s; %s #%ld %s"),
u_oldcount < 0 ? -u_oldcount : u_oldcount,
*** ../vim-8.2.4216/src/testdir/test_visual.vim 2022-01-25 13:52:49.409429882 +0000
--- src/testdir/test_visual.vim 2022-01-25 18:17:06.014445529 +0000
***************
*** 1339,1343 ****
--- 1339,1358 ----
bwipe!
endfunc

+ " This was leaving the end of the Visual area beyond the end of a line.
+ " Set 'undolevels' to start a new undo block.
+ func Test_visual_undo_deletes_last_line()
+ new
+ call setline(1, ["aaa", "ccc", "dyd"])
+ set undolevels=100
+ exe "normal obbbbbbbbbxbb\<Esc>"
+ set undolevels=100
+ /y
+ exe "normal ggvjfxO"
+ undo
+ normal gNU
+ bwipe!
+ endfunc
+

" vim: shiftwidth=2 sts=2 expandtab
*** ../vim-8.2.4216/src/version.c 2022-01-25 15:51:52.434855097 +0000
--- src/version.c 2022-01-25 17:38:13.824799643 +0000
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 4217,
/**/

--
What do you get when you cross a joke with a rehtorical question?

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// \\\
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\\\ help me help AIDS victims -- http://ICCF-Holland.org ///