Patch 8.2.0746
Problem:    popup_clear() hangs when a popup can't be closed.
Solution:   Bail out when a popup can't be closed.
Files:      src/popupwin.c, src/proto/popupwin.pro


*** ../vim-8.2.0745/src/popupwin.c      2020-04-06 22:12:57.141652839 +0200
--- src/popupwin.c      2020-05-13 00:59:04.084633443 +0200
***************
*** 2531,2538 ****
  /*
   * Close a popup window by Window-id.
   * Does not invoke the callback.
   */
!     void
  popup_close(int id)
  {
      win_T     *wp;
--- 2531,2539 ----
  /*
   * Close a popup window by Window-id.
   * Does not invoke the callback.
+  * Return OK if the popup was closed, FAIL otherwise.
   */
!     int
  popup_close(int id)
  {
      win_T     *wp;
***************
*** 2546,2570 ****
            if (wp == curwin)
            {
                error_for_popup_window();
!               return;
            }
            if (prev == NULL)
                first_popupwin = wp->w_next;
            else
                prev->w_next = wp->w_next;
            popup_free(wp);
!           return;
        }
  
      // go through tab-local popups
      FOR_ALL_TABPAGES(tp)
!       popup_close_tabpage(tp, id);
  }
  
  /*
   * Close a popup window with Window-id "id" in tabpage "tp".
   */
!     void
  popup_close_tabpage(tabpage_T *tp, int id)
  {
      win_T     *wp;
--- 2547,2573 ----
            if (wp == curwin)
            {
                error_for_popup_window();
!               return FAIL;
            }
            if (prev == NULL)
                first_popupwin = wp->w_next;
            else
                prev->w_next = wp->w_next;
            popup_free(wp);
!           return OK;
        }
  
      // go through tab-local popups
      FOR_ALL_TABPAGES(tp)
!       if (popup_close_tabpage(tp, id) == OK)
!           return OK;
!     return FAIL;
  }
  
  /*
   * Close a popup window with Window-id "id" in tabpage "tp".
   */
!     int
  popup_close_tabpage(tabpage_T *tp, int id)
  {
      win_T     *wp;
***************
*** 2577,2591 ****
            if (wp == curwin)
            {
                error_for_popup_window();
!               return;
            }
            if (prev == NULL)
                *root = wp->w_next;
            else
                prev->w_next = wp->w_next;
            popup_free(wp);
!           return;
        }
  }
  
      void
--- 2580,2595 ----
            if (wp == curwin)
            {
                error_for_popup_window();
!               return FAIL;
            }
            if (prev == NULL)
                *root = wp->w_next;
            else
                prev->w_next = wp->w_next;
            popup_free(wp);
!           return OK;
        }
+     return FAIL;
  }
  
      void
***************
*** 2594,2602 ****
      if (ERROR_IF_ANY_POPUP_WINDOW)
        return;
      while (first_popupwin != NULL)
!       popup_close(first_popupwin->w_id);
      while (curtab->tp_first_popupwin != NULL)
!       popup_close(curtab->tp_first_popupwin->w_id);
  }
  
  /*
--- 2598,2608 ----
      if (ERROR_IF_ANY_POPUP_WINDOW)
        return;
      while (first_popupwin != NULL)
!       if (popup_close(first_popupwin->w_id) == FAIL)
!           return;
      while (curtab->tp_first_popupwin != NULL)
!       if (popup_close(curtab->tp_first_popupwin->w_id) == FAIL)
!           return;
  }
  
  /*
*** ../vim-8.2.0745/src/proto/popupwin.pro      2020-03-27 20:58:33.345005916 
+0100
--- src/proto/popupwin.pro      2020-05-13 00:46:38.491537332 +0200
***************
*** 34,41 ****
  void f_popup_show(typval_T *argvars, typval_T *rettv);
  void f_popup_settext(typval_T *argvars, typval_T *rettv);
  int error_if_popup_window(int also_with_term);
! void popup_close(int id);
! void popup_close_tabpage(tabpage_T *tp, int id);
  void close_all_popups(void);
  void f_popup_move(typval_T *argvars, typval_T *rettv);
  void f_popup_setoptions(typval_T *argvars, typval_T *rettv);
--- 34,41 ----
  void f_popup_show(typval_T *argvars, typval_T *rettv);
  void f_popup_settext(typval_T *argvars, typval_T *rettv);
  int error_if_popup_window(int also_with_term);
! int popup_close(int id);
! int popup_close_tabpage(tabpage_T *tp, int id);
  void close_all_popups(void);
  void f_popup_move(typval_T *argvars, typval_T *rettv);
  void f_popup_setoptions(typval_T *argvars, typval_T *rettv);
*** ../vim-8.2.0745/src/version.c       2020-05-12 23:45:12.172749473 +0200
--- src/version.c       2020-05-13 00:59:49.824457499 +0200
***************
*** 748,749 ****
--- 748,751 ----
  {   /* Add new patch number below this line */
+ /**/
+     746,
  /**/

-- 
Momento mori, ergo carpe diem

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
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