Patch 8.2.2271

[Bram Moolenaar]

Patch 8.2.2271
Problem: ml_get error when changing hidden buffer in Python.
Solution: Block updating folds. (closes #7598)
Files: src/evalbuffer.c, src/testdir/test_python3.vim


*** ../vim-8.2.2270/src/evalbuffer.c 2020-10-22 18:23:34.429289412 +0200
--- src/evalbuffer.c 2021-01-02 13:48:38.246917302 +0100
***************
*** 807,812 ****
--- 807,815 ----
switch_buffer(bufref_T *save_curbuf, buf_T *buf)
{
block_autocmds();
+ #ifdef FEAT_FOLDING
+ ++disable_fold_update;
+ #endif
set_bufref(save_curbuf, curbuf);
--curbuf->b_nwindows;
curbuf = buf;
***************
*** 821,826 ****
--- 824,832 ----
restore_buffer(bufref_T *save_curbuf)
{
unblock_autocmds();
+ #ifdef FEAT_FOLDING
+ --disable_fold_update;
+ #endif
// Check for valid buffer, just in case.
if (bufref_valid(save_curbuf))
{
*** ../vim-8.2.2270/src/testdir/test_python3.vim 2020-12-22 12:50:07.368223959 +0100
--- src/testdir/test_python3.vim 2021-01-02 13:46:35.735351774 +0100
***************
*** 4016,4019 ****
--- 4016,4052 ----
sunmap <Esc>@
endfunc

+ func Test_python3_fold_hidden_buffer()
+ CheckFeature folding
+
+ set fdm=expr fde=Fde(v:lnum)
+ let b:regex = '^'
+ func Fde(lnum)
+ let ld = [{}]
+ let lines = bufnr('%')->getbufline(1, '$')
+ let was_import = 0
+ for lnum in range(1, len(lines))
+ let line = lines[lnum]
+ call add(ld, {'a': b:regex})
+ let ld[lnum].foldexpr = was_import ? 1 : '>1'
+ let was_import = 1
+ endfor
+ return ld[a:lnum].foldexpr
+ endfunc
+
+ call setline(1, repeat([''], 15) + repeat(['from'], 3))
+ eval repeat(['x'], 17)->writefile('Xa.txt')
+ split Xa.txt
+ py3 import vim
+ py3 b = vim.current.buffer
+ py3 aaa = b[:]
+ hide
+ py3 b[:] = aaa
+
+ call delete('Xa.txt')
+ set fdm& fde&
+ delfunc Fde
+ bwipe! Xa.txt
+ endfunc
+
" vim: shiftwidth=2 sts=2 expandtab
*** ../vim-8.2.2270/src/version.c 2021-01-02 12:45:38.234364061 +0100
--- src/version.c 2021-01-02 13:48:02.691043639 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 2271,
/**/

--
From "know your smileys":
:^[/ mean-smiley-with-cigarette

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///