To: vim_dev@googlegroups.com
Subject: Patch 7.3.155
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
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------------

Patch 7.3.155
Problem:    Crash when using map(), filter() and remove() on v:. (ZyX)
            Also for extend(). (Yukihiro Nakadaira)
Solution:   Mark v: as locked.  Also correct locking error messages.
Files:	    src/eval.c


*** ../vim-7.3.154/src/eval.c	2011-04-01 16:07:41.000000000 +0200
--- src/eval.c	2011-04-11 13:28:34.000000000 +0200
***************
*** 853,858 ****
--- 853,859 ----
  
      init_var_dict(&globvardict, &globvars_var);
      init_var_dict(&vimvardict, &vimvars_var);
+     vimvardict.dv_lock = VAR_FIXED;
      hash_init(&compat_hashtab);
      hash_init(&func_hashtab);
  
***************
*** 8545,8551 ****
      if (argvars[0].v_type == VAR_LIST)
      {
  	if ((l = argvars[0].vval.v_list) != NULL
! 		&& !tv_check_lock(l->lv_lock, (char_u *)"add()")
  		&& list_append_tv(l, &argvars[1]) == OK)
  	    copy_tv(&argvars[0], rettv);
      }
--- 8546,8552 ----
      if (argvars[0].v_type == VAR_LIST)
      {
  	if ((l = argvars[0].vval.v_list) != NULL
! 		&& !tv_check_lock(l->lv_lock, (char_u *)_("add() argument"))
  		&& list_append_tv(l, &argvars[1]) == OK)
  	    copy_tv(&argvars[0], rettv);
      }
***************
*** 9946,9951 ****
--- 9947,9954 ----
      typval_T	*argvars;
      typval_T	*rettv;
  {
+     char      *arg_errmsg = N_("extend() argument");
+ 
      if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST)
      {
  	list_T		*l1, *l2;
***************
*** 9955,9961 ****
  
  	l1 = argvars[0].vval.v_list;
  	l2 = argvars[1].vval.v_list;
! 	if (l1 != NULL && !tv_check_lock(l1->lv_lock, (char_u *)"extend()")
  		&& l2 != NULL)
  	{
  	    if (argvars[2].v_type != VAR_UNKNOWN)
--- 9958,9964 ----
  
  	l1 = argvars[0].vval.v_list;
  	l2 = argvars[1].vval.v_list;
! 	if (l1 != NULL && !tv_check_lock(l1->lv_lock, (char_u *)_(arg_errmsg))
  		&& l2 != NULL)
  	{
  	    if (argvars[2].v_type != VAR_UNKNOWN)
***************
*** 9994,10000 ****
  
  	d1 = argvars[0].vval.v_dict;
  	d2 = argvars[1].vval.v_dict;
! 	if (d1 != NULL && !tv_check_lock(d1->dv_lock, (char_u *)"extend()")
  		&& d2 != NULL)
  	{
  	    /* Check the third argument. */
--- 9997,10003 ----
  
  	d1 = argvars[0].vval.v_dict;
  	d2 = argvars[1].vval.v_dict;
! 	if (d1 != NULL && !tv_check_lock(d1->dv_lock, (char_u *)_(arg_errmsg))
  		&& d2 != NULL)
  	{
  	    /* Check the third argument. */
***************
*** 10236,10255 ****
      typval_T	save_key;
      int		rem;
      int		todo;
!     char_u	*ermsg = map ? (char_u *)"map()" : (char_u *)"filter()";
      int		save_did_emsg;
      int		idx = 0;
  
      if (argvars[0].v_type == VAR_LIST)
      {
  	if ((l = argvars[0].vval.v_list) == NULL
! 		|| (map && tv_check_lock(l->lv_lock, ermsg)))
  	    return;
      }
      else if (argvars[0].v_type == VAR_DICT)
      {
  	if ((d = argvars[0].vval.v_dict) == NULL
! 		|| (map && tv_check_lock(d->dv_lock, ermsg)))
  	    return;
      }
      else
--- 10239,10260 ----
      typval_T	save_key;
      int		rem;
      int		todo;
!     char_u	*ermsg = (char_u *)(map ? "map()" : "filter()");
!     char	*arg_errmsg = (map ? N_("map() argument")
! 				   : N_("filter() argument"));
      int		save_did_emsg;
      int		idx = 0;
  
      if (argvars[0].v_type == VAR_LIST)
      {
  	if ((l = argvars[0].vval.v_list) == NULL
! 		|| tv_check_lock(l->lv_lock, (char_u *)_(arg_errmsg)))
  	    return;
      }
      else if (argvars[0].v_type == VAR_DICT)
      {
  	if ((d = argvars[0].vval.v_dict) == NULL
! 		|| tv_check_lock(d->dv_lock, (char_u *)_(arg_errmsg)))
  	    return;
      }
      else
***************
*** 10286,10292 ****
  		{
  		    --todo;
  		    di = HI2DI(hi);
! 		    if (tv_check_lock(di->di_tv.v_lock, ermsg))
  			break;
  		    vimvars[VV_KEY].vv_str = vim_strsave(di->di_key);
  		    if (filter_map_one(&di->di_tv, expr, map, &rem) == FAIL
--- 10291,10298 ----
  		{
  		    --todo;
  		    di = HI2DI(hi);
! 		    if (tv_check_lock(di->di_tv.v_lock,
! 						     (char_u *)_(arg_errmsg)))
  			break;
  		    vimvars[VV_KEY].vv_str = vim_strsave(di->di_key);
  		    if (filter_map_one(&di->di_tv, expr, map, &rem) == FAIL
***************
*** 10305,10311 ****
  
  	    for (li = l->lv_first; li != NULL; li = nli)
  	    {
! 		if (tv_check_lock(li->li_tv.v_lock, ermsg))
  		    break;
  		nli = li->li_next;
  		vimvars[VV_KEY].vv_nr = idx;
--- 10311,10317 ----
  
  	    for (li = l->lv_first; li != NULL; li = nli)
  	    {
! 		if (tv_check_lock(li->li_tv.v_lock, (char_u *)_(arg_errmsg)))
  		    break;
  		nli = li->li_next;
  		vimvars[VV_KEY].vv_nr = idx;
***************
*** 12910,12916 ****
      if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listarg), "insert()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)"insert()"))
      {
  	if (argvars[2].v_type != VAR_UNKNOWN)
  	    before = get_tv_number_chk(&argvars[2], &error);
--- 12916,12922 ----
      if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listarg), "insert()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)_("insert() argument")))
      {
  	if (argvars[2].v_type != VAR_UNKNOWN)
  	    before = get_tv_number_chk(&argvars[2], &error);
***************
*** 14775,14787 ****
      char_u	*key;
      dict_T	*d;
      dictitem_T	*di;
  
      if (argvars[0].v_type == VAR_DICT)
      {
  	if (argvars[2].v_type != VAR_UNKNOWN)
  	    EMSG2(_(e_toomanyarg), "remove()");
  	else if ((d = argvars[0].vval.v_dict) != NULL
! 		&& !tv_check_lock(d->dv_lock, (char_u *)"remove() argument"))
  	{
  	    key = get_tv_string_chk(&argvars[1]);
  	    if (key != NULL)
--- 14781,14794 ----
      char_u	*key;
      dict_T	*d;
      dictitem_T	*di;
+     char	*arg_errmsg = N_("remove() argument");
  
      if (argvars[0].v_type == VAR_DICT)
      {
  	if (argvars[2].v_type != VAR_UNKNOWN)
  	    EMSG2(_(e_toomanyarg), "remove()");
  	else if ((d = argvars[0].vval.v_dict) != NULL
! 		&& !tv_check_lock(d->dv_lock, (char_u *)_(arg_errmsg)))
  	{
  	    key = get_tv_string_chk(&argvars[1]);
  	    if (key != NULL)
***************
*** 14801,14807 ****
      else if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listdictarg), "remove()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)"remove() argument"))
      {
  	int	    error = FALSE;
  
--- 14808,14814 ----
      else if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listdictarg), "remove()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)_(arg_errmsg)))
      {
  	int	    error = FALSE;
  
***************
*** 15135,15141 ****
      if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listarg), "reverse()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)"reverse()"))
      {
  	li = l->lv_last;
  	l->lv_first = l->lv_last = NULL;
--- 15142,15148 ----
      if (argvars[0].v_type != VAR_LIST)
  	EMSG2(_(e_listarg), "reverse()");
      else if ((l = argvars[0].vval.v_list) != NULL
! 	    && !tv_check_lock(l->lv_lock, (char_u *)_("reverse() argument")))
      {
  	li = l->lv_last;
  	l->lv_first = l->lv_last = NULL;
***************
*** 16432,16438 ****
      else
      {
  	l = argvars[0].vval.v_list;
! 	if (l == NULL || tv_check_lock(l->lv_lock, (char_u *)"sort()"))
  	    return;
  	rettv->vval.v_list = l;
  	rettv->v_type = VAR_LIST;
--- 16439,16446 ----
      else
      {
  	l = argvars[0].vval.v_list;
! 	if (l == NULL || tv_check_lock(l->lv_lock,
! 					     (char_u *)_("sort() argument")))
  	    return;
  	rettv->vval.v_list = l;
  	rettv->v_type = VAR_LIST;
*** ../vim-7.3.154/src/version.c	2011-04-02 15:12:45.000000000 +0200
--- src/version.c	2011-04-11 13:13:38.000000000 +0200
***************
*** 716,717 ****
--- 716,719 ----
  {   /* Add new patch number below this line */
+ /**/
+     155,
  /**/

-- 
I used to be indecisive, now I'm not sure.

 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\  an exciting new programming language -- http://www.Zimbu.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///