From 3a59b04c1997a697c3428bcfcf4fa9e875e718dd Mon Sep 17 00:00:00 2001
From: James McCoy <jamessan@jamessan.com>
Date: Thu, 29 Sep 2016 13:37:39 -0400
Subject: Correct logic for setting NormalState.toplevel

In Vim's main_loop function, the main loop is

        while (!cmdwin
    #ifdef FEAT_CMDWIN
                || cmdwin_result == 0
    #endif
                )
        {
    ...
    #ifdef FEAT_EVAL
            /*
             * May perform garbage collection when waiting for a character, but
             * only at the very toplevel.  Otherwise we may be using a List or
             * Dict internally somewhere.
             * "may_garbage_collect" is reset in vgetc() which is invoked through
             * do_exmode() and normal_cmd().
             */
            may_garbage_collect = (!cmdwin && !noexmode);
    #endif
            /*
             * If we're invoked as ex, do a round of ex commands.
             * Otherwise, get and execute a normal mode command.
             */
            if (exmode_active)
            {
                if (noexmode)   /* End of ":global/path/visual" commands */
                    return;
                do_exmode(exmode_active == EXMODE_VIM);
            }
            else
                normal_cmd(&oa, TRUE);
        }

cmdwin_result is set to 0 before calling main_loop to handle the cmdwin
window and gets changed when the user causes a command to execute
(either through pressing <CR> or <C-c>).  This means that when the
cmdwin isn't active OR the user is still editing their command,
main_loop runs and main_loop calls normal_cmd with toplevel true as long
as exmode isn't active.

When the normal mode state was extracted in dae006a9, the conditions for
toplevel and may_garbage_collect were combined.  Since toplevel was set
to always ignore cmdwin, the v:count(1) variables were no longer being
updated when a command was prefixed with a count in the cmdwin.

Closes #5404
---
 src/nvim/normal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/nvim/normal.c b/src/nvim/normal.c
index d0a9d3aca7..c7c112200a 100644
--- a/src/nvim/normal.c
+++ b/src/nvim/normal.c
@@ -459,7 +459,7 @@ void normal_enter(bool cmdwin, bool noexmode)
   normal_state_init(&state);
   state.cmdwin = cmdwin;
   state.noexmode = noexmode;
-  state.toplevel = !cmdwin && !noexmode;
+  state.toplevel = (!cmdwin || cmdwin_result == 0) && !noexmode;
   state_enter(&state.state);
 }
 
@@ -1360,7 +1360,7 @@ static int normal_check(VimState *state)
   // Dict internally somewhere.
   // "may_garbage_collect" is reset in vgetc() which is invoked through
   // do_exmode() and normal_cmd().
-  may_garbage_collect = s->toplevel;
+  may_garbage_collect = !s->cmdwin && !s->noexmode;
 
   // Update w_curswant if w_set_curswant has been set.
   // Postponed until here to avoid computing w_virtcol too often.
-- 
cgit