Merge pull request #13865 from janlazo/vim-8.2.2437

vim-patch:8.2.{2437,2439,2442,2446,2447,2448,2457,2458,2462,2464}

src/nvim/ex_cmds.c

@@ -790,7 +790,10 @@ void ex_retab(exarg_T *eap)
             for (col = 0; col < len; col++) {
               ptr[col] = (col < num_tabs) ? '\t' : ' ';
             }
-            ml_replace(lnum, new_line, false);
+            if (ml_replace(lnum, new_line, false) == OK) {
+              // "new_line" may have been copied
+              new_line = curbuf->b_ml.ml_line_ptr;
+            }
             if (first_line == 0) {
               first_line = lnum;
             }
@@ -2413,7 +2416,10 @@ int do_ecmd(
                      (flags & ECMD_HIDE) || curbuf->terminal ? 0 : DOBUF_UNLOAD,
                      false);
 
-        the_curwin->w_closing = false;
+        // Autocommands may have closed the window.
+        if (win_valid(the_curwin)) {
+          the_curwin->w_closing = false;
+        }
         buf->b_locked--;
 
         // autocmds may abort script processing

src/nvim/fold.c

@@ -2999,7 +2999,6 @@ static void foldlevelDiff(fline_T *flp)
 static void foldlevelExpr(fline_T *flp)
 {
   win_T       *win;
-  int n;
   int c;
   linenr_T lnum = flp->lnum + flp->off;
 
@@ -3017,7 +3016,7 @@ static void foldlevelExpr(fline_T *flp)
   /* KeyTyped may be reset to 0 when calling a function which invokes
    * do_cmdline().  To make 'foldopen' work correctly restore KeyTyped. */
   const bool save_keytyped = KeyTyped;
-  n = (int)eval_foldexpr(flp->wp->w_p_fde, &c);
+  const int n = eval_foldexpr(flp->wp->w_p_fde, &c);
   KeyTyped = save_keytyped;
 
   switch (c) {
@@ -3202,8 +3201,10 @@ int put_folds(FILE *fd, win_T *wp)
 {
   if (foldmethodIsManual(wp)) {
     if (put_line(fd, "silent! normal! zE") == FAIL
-        || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL)
+        || put_folds_recurse(fd, &wp->w_folds, (linenr_T)0) == FAIL
+        || put_line(fd, "let &fdl = &fdl") == FAIL) {
       return FAIL;
+    }
   }
 
   /* If some folds are manually opened/closed, need to restore that. */

src/nvim/spellfile.c

@@ -5387,7 +5387,8 @@ spell_add_word (
                    len, word, NameBuff);
             }
           }
-          if (fseek(fd, fpos_next, SEEK_SET) <= 0) {
+          if (fseek(fd, fpos_next, SEEK_SET) != 0) {
+            PERROR(_("Seek error in spellfile"));
             break;
           }
         }

src/nvim/testdir/test_autocmd.vim

@@ -1939,4 +1939,15 @@ func Test_autocmd_window()
   %bw!
 endfunc
 
+func Test_autocmd_closes_window()
+  au BufNew,BufWinLeave * e %e
+  file yyy
+  au BufNew,BufWinLeave * ball
+  call assert_fails('n xxx', 'E143:')
+
+  bwipe %
+  au! BufNew
+  au! BufWinLeave
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab

src/nvim/testdir/test_mksession.vim

@@ -291,6 +291,32 @@ endfunc
 
 endif
 
+func Test_mkview_open_folds()
+  enew!
+
+  call append(0, ['a', 'b', 'c'])
+  1,3fold
+  " zR affects 'foldlevel', make sure the option is applied after the folds
+  " have been recreated.
+  normal zR
+  write! Xtestfile
+
+  call assert_equal(-1, foldclosed(1))
+  call assert_equal(-1, foldclosed(2))
+  call assert_equal(-1, foldclosed(3))
+
+  mkview! Xtestview
+  source Xtestview
+
+  call assert_equal(-1, foldclosed(1))
+  call assert_equal(-1, foldclosed(2))
+  call assert_equal(-1, foldclosed(3))
+
+  call delete('Xtestview')
+  call delete('Xtestfile')
+  %bwipe
+endfunc
+
 " Test :mkview with a file argument.
 func Test_mkview_file()
   " Create a view with line number and a fold.

src/nvim/testdir/test_options.vim

@@ -330,12 +330,10 @@ func Test_set_ttytype()
     set ttytype=xterm
     call assert_equal('xterm', &ttytype)
     call assert_equal(&ttytype, &term)
-    " "set ttytype=" gives E522 instead of E529
-    " in travis on some builds. Why?  Catch both for now
     try
       set ttytype=
       call assert_report('set ttytype= did not fail')
-    catch /E529\|E522/
+    catch /E529/
     endtry
 
     " Some systems accept any terminal name and return dumb settings,