Merge pull request #4949 from jamessan/vim-7.4.1592

vim-patch:7.4.1592

src/nvim/quickfix.c

@@ -1576,14 +1576,23 @@ win_found:
        * set b_p_ro flag). */
       if (!can_abandon(curbuf, forceit)) {
         EMSG(_(e_nowrtmsg));
-        ok = FALSE;
+        ok = false;
-      } else
+      } else {
         ok = do_ecmd(qf_ptr->qf_fnum, NULL, NULL, NULL, (linenr_T)1,
                      ECMD_HIDE + ECMD_SET_HELP,
                      oldwin == curwin ? curwin : NULL);
-    } else
+      }
-      ok = buflist_getfile(qf_ptr->qf_fnum,
+    } else {
-          (linenr_T)1, GETF_SETMARK | GETF_SWITCH, forceit);
+      ok = buflist_getfile(qf_ptr->qf_fnum, (linenr_T)1,
+                           GETF_SETMARK | GETF_SWITCH, forceit);
+      if (qi != &ql_info && !win_valid(oldwin)) {
+        EMSG(_("E924: Current window was closed"));
+        ok = false;
+        qi = NULL;
+        qf_ptr = NULL;
+        opened_window = false;
+      }
+    }
   }
 
   if (ok == OK) {
@@ -1663,21 +1672,22 @@ win_found:
       msg_scroll = (int)i;
     }
   } else {
-    if (opened_window)
+    if (opened_window) {
-      win_close(curwin, TRUE);          /* Close opened window */
+      win_close(curwin, true);          // Close opened window
-    if (qf_ptr->qf_fnum != 0) {
+    }
-      /*
+    if (qf_ptr != NULL && qf_ptr->qf_fnum != 0) {
-       * Couldn't open file, so put index back where it was.  This could
+       // Couldn't open file, so put index back where it was.  This could
-       * happen if the file was readonly and we changed something.
+       // happen if the file was readonly and we changed something.
-       */
 failed:
       qf_ptr = old_qf_ptr;
       qf_index = old_qf_index;
     }
   }
 theend:
+  if (qi != NULL) {
     qi->qf_lists[qi->qf_curlist].qf_ptr = qf_ptr;
     qi->qf_lists[qi->qf_curlist].qf_index = qf_index;
+  }
   if (p_swb != old_swb && opened_window) {
     /* Restore old 'switchbuf' value, but not when an autocommand or
      * modeline has changed the value. */

src/nvim/version.c

@@ -100,7 +100,7 @@ static int included_patches[] = {
   // 1595 NA
   // 1594 NA
   // 1593 NA
-  // 1592,
+  1592,
   // 1591,
   // 1590,
   // 1589,

test/functional/legacy/quickfix_spec.lua

@@ -258,6 +258,25 @@ describe('helpgrep', function()
         \ l[3].lnum == 750 && l[3].col == 25 && l[3].text ==# 'Line 750')
 
       endfunction
+
+      function Test_locationlist_curwin_was_closed()
+          augroup testgroup
+            au!
+            autocmd BufReadCmd t call R(expand("<amatch>"))
+          augroup END
+
+          function R(n)
+            quit
+          endfunc
+
+          new
+          let q = []
+          call add(q, {'filename': 't' })
+          call setloclist(0, q)
+          call assert_fails('lrewind', 'E924:')
+
+          augroup! testgroup
+      endfunction
       ]])
   end)
 
@@ -315,4 +334,9 @@ describe('helpgrep', function()
     execute('copen')
     eq(':setqflist()', eval('g:foo'))
   end)
+
+  it('errors when an autocommand closes the location list\'s window', function()
+    call('Test_locationlist_curwin_was_closed')
+    expected_empty()
+  end)
 end)