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jamessan
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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 or ). 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 dae006a, 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to always ignore cmdwin, the v:count(1) variables were no longer being
updated when a command was prefixed with a count in the cmdwin.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

@jamessan
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I still intend to add a couple tests for this v:count/v:count1 behavior in both "normal" mode and "cmdwin" mode. Just wanted to get the code up for review.

@justinmk
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LGTM

@jamessan
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Ok. Added a couple tests for basic behavior of v:count/v:count1.

@justinmk
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LGTM, though I would normally avoid screen tests where they aren't needed.

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 dae006a, 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 neovim#5404
@jamessan
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Good point. Removed the use of screen tests.

@jamessan jamessan merged commit 3a59b04 into neovim:master Sep 30, 2016
jamessan added a commit that referenced this pull request Sep 30, 2016
Correct logic for setting NormalState.toplevel
justinmk added a commit to justinmk/neovim that referenced this pull request Oct 27, 2016
FEATURES:
0b5a7e4 neovim#4432 API: external UIs can render custom popupmenu
c6ac4f8 neovim#4934 API: call any API method from vimscript
31df051 neovim#4568 API: nvim_call_atomic(): multiple calls in a single request
b268ba3 neovim#5424 API: nvim_win_get_number(), nvim_tabpage_get_number()
e7e2844 has("nvim-1.2.3") checks for a specific Nvim version
522b885 neovim#5295, neovim#5493 `:CheckHealth` checks tmux, terminfo, performance
719dae2 neovim#5384 events: allow event processing in getchar()
f25797f neovim#5386 API: metadata: Nvim version & API level
22dfe69 neovim#5389 API: metadata: "since", "deprecated_since"
605e743 Added QuickFixLine highlight group

CHANGES:
4af6ec7 neovim#5253 perf: Disable clipboard in do_cmdline()
6e9f329 neovim#5299 perf: Skip foldUpdate() in insert-mode.
9d4fcec neovim#5426 perf: Do not auto-update folds for some foldmethods.
eeec0ca neovim#5419 tui: Default to normal-mode cursor shape.

FIXES:
e838452 neovim#5436 tui: Fix "weird characters" / "bleeding termcodes"
10a54ad neovim#5243 signal_init: Always unblock SIGCHLD.
bccb49b neovim#5316 eval.c: Fix memory leak for detached pty job
626065d neovim#5227 tchdir: New tab should inherit CWD.
cd321b7 neovim#5292 getcwd(): Return empty string if CWD is invalid.
6127eae shada: Fix non-writeable ShaDa directory handling
ca65514 neovim#2789 system(): Respect shellxescape, shellxquote
2daf54e neovim#4874 Restore vim-like tab dragging
0c536b5 neovim#5319 syntax.c: Support bg/fg special color-names.
3c53371 neovim#4972 from justinmk/schedule-ui_refresh
68bcb32 neovim#4789 tui.c: Do not wait for tui loop on teardown.
c8b6ec2 neovim#5409 v:count broken in command-line window
6bc3bce neovim#5461 fix emoji display
51937e1 neovim#5470 fix :terminal with :argadd, :argu
79d77da neovim#5481 external UIs: opening multiple files from command-line
657ba62 neovim#5501 rplugin: resolve paths in manifest file
6a6f188 neovim#5502 system('foo &', 'bar'): Show error, don't crash.
1ff162c neovim#5515 os_nodetype: open fd with O_NONBLOCK
2a6c5bb neovim#5450 modeline: Handle version number overflow.
0ade1bb neovim#5225 CI tests now run against Windows!
justinmk added a commit to justinmk/neovim that referenced this pull request Oct 28, 2016
FEATURES:
0b5a7e4 neovim#4432 API: external UIs can render custom popupmenu
c6ac4f8 neovim#4934 API: call any API method from vimscript
31df051 neovim#4568 API: nvim_call_atomic(): multiple calls in a single request
b268ba3 neovim#5424 API: nvim_win_get_number(), nvim_tabpage_get_number()
e7e2844 has("nvim-1.2.3") checks for a specific Nvim version
522b885 neovim#5295, neovim#5493 `:CheckHealth` checks tmux, terminfo, performance
719dae2 neovim#5384 events: allow event processing in getchar()
f25797f neovim#5386 API: metadata: Nvim version & API level
22dfe69 neovim#5389 API: metadata: "since", "deprecated_since"
605e743 Added QuickFixLine highlight group

CHANGES:
4af6ec7 neovim#5253 perf: Disable clipboard in do_cmdline()
6e9f329 neovim#5299 perf: Skip foldUpdate() in insert-mode.
9d4fcec neovim#5426 perf: Do not auto-update folds for some foldmethods.
eeec0ca neovim#5419 tui: Default to normal-mode cursor shape.

FIXES:
e838452 neovim#5436 tui: Fix "weird characters" / "bleeding termcodes"
10a54ad neovim#5243 signal_init: Always unblock SIGCHLD.
bccb49b neovim#5316 eval.c: Fix memory leak for detached pty job
626065d neovim#5227 tchdir: New tab should inherit CWD.
cd321b7 neovim#5292 getcwd(): Return empty string if CWD is invalid.
6127eae shada: Fix non-writeable ShaDa directory handling
ca65514 neovim#2789 system(): Respect shellxescape, shellxquote
2daf54e neovim#4874 Restore vim-like tab dragging
0c536b5 neovim#5319 syntax.c: Support bg/fg special color-names.
3c53371 neovim#4972 from justinmk/schedule-ui_refresh
68bcb32 neovim#4789 tui.c: Do not wait for tui loop on teardown.
c8b6ec2 neovim#5409 v:count broken in command-line window
6bc3bce neovim#5461 fix emoji display
51937e1 neovim#5470 fix :terminal with :argadd, :argu
79d77da neovim#5481 external UIs: opening multiple files from command-line
657ba62 neovim#5501 rplugin: resolve paths in manifest file
6a6f188 neovim#5502 system('foo &', 'bar'): Show error, don't crash.
1ff162c neovim#5515 os_nodetype: open fd with O_NONBLOCK
2a6c5bb neovim#5450 modeline: Handle version number overflow.
0ade1bb neovim#5225 CI tests now run against Windows!
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v:count broken in command-line window
2 participants