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Fix :emenu crash when it's associated with a macaction in a non-valid mode #1305

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merged 1 commit into from
Oct 7, 2022
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Fix :emenu crash when it's associated with a macaction in a non-valid mode #1305

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33 changes: 17 additions & 16 deletions src/menu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2376,9 +2376,24 @@ execute_menu(exarg_T *eap, vimmenu_T *menu, int mode_idx)
if (idx == MENU_INDEX_INVALID || eap == NULL)
idx = MENU_INDEX_NORMAL;

if (menu->strings[idx] != NULL && menu->strings[idx][0] != NUL
&& (menu->modes & (1 << idx)))
if (menu->strings[idx] != NULL && (menu->modes & (1 << idx)))
{
#ifdef FEAT_GUI_MACVIM
// When a menu is bound to <Nop>, we let :emenu fall through to execute
// the associated macaction (if one exists) instead. Otherwise, we
// simply execute the associated Vim command. Note that if you
// physically press the menu item (or the associated shortcut key), the
// macaction is always invoked even if the menu isn't bound to <Nop>.
if (menu->mac_action != NULL && menu->strings[idx] != NULL && menu->strings[idx][0] == NUL)
{
// Count on the fact taht ex_macaction() only looks at eap->arg.
old_arg = eap->arg;
eap->arg = menu->mac_action;
ex_macaction(eap);
eap->arg = old_arg;
}
#endif // FEAT_GUI_MACVIM

// When executing a script or function execute the commands right now.
// Also for the window toolbar.
// Otherwise put them in the typeahead buffer.
Expand Down Expand Up @@ -2425,20 +2440,6 @@ execute_menu(exarg_T *eap, vimmenu_T *menu, int mode_idx)
default:
mode = (char_u *)"Normal";
}
#ifdef FEAT_GUI_MACVIM
if (menu->mac_action != NULL && menu->strings[idx][0] == NUL)
{
// This allows us to bind a menu to an action without mapping to
// anything so that pressing the menu's key equivalent and typing
// ":emenu ..." does the same thing. (HACK: We count on the fact
// that ex_macaction() only looks at eap->arg.)
old_arg = eap->arg;
eap->arg = menu->mac_action;
ex_macaction(eap);
eap->arg = old_arg;
}
else
#endif // FEAT_GUI_MACVIM
semsg(_(e_menu_not_defined_for_str_mode), mode);
}
}
Expand Down