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eval: Change the point at which arg_errmsg and its length are changed

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Ref #6437
This commit is contained in:
ZyX 2017-04-13 19:16:32 +03:00
parent 58d2ce9bdb
commit b2942d1e72
3 changed files with 98 additions and 65 deletions
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130
src/nvim/eval.c
View File

@ -2378,9 +2378,9 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv,
&tv, &di, true, false) == OK) {
if ((di == NULL
|| (!var_check_ro(di->di_flags, (const char *)lp->ll_name,
STRLEN(lp->ll_name))
TV_CSTRING)
&& !tv_check_lock(di->di_tv.v_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name))))
TV_CSTRING)))
&& eexe_mod_op(&tv, rettv, (const char *)op) == OK) {
set_var(lp->ll_name, lp->ll_name_len, &tv, false);
}
@ -2393,7 +2393,7 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv,
} else if (tv_check_lock(lp->ll_newkey == NULL
? lp->ll_tv->v_lock
: lp->ll_tv->vval.v_dict->dv_lock,
(const char *)lp->ll_name, STRLEN(lp->ll_name))) {
(const char *)lp->ll_name, TV_CSTRING)) {
} else if (lp->ll_range) {
listitem_T *ll_li = lp->ll_li;
int ll_n1 = lp->ll_n1;
@ -2402,7 +2402,7 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv,
for (listitem_T *ri = rettv->vval.v_list->lv_first;
ri != NULL && ll_li != NULL; ) {
if (tv_check_lock(ll_li->li_tv.v_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name))) {
TV_CSTRING)) {
return;
}
ri = ri->li_next;
@ -2992,14 +2992,14 @@ int do_unlet(const char *const name, const size_t name_len, const int forceit)
}
if (hi != NULL && !HASHITEM_EMPTY(hi)) {
dictitem_T *const di = TV_DICT_HI2DI(hi);
if (var_check_fixed(di->di_flags, (const char *)name, STRLEN(name))
|| var_check_ro(di->di_flags, (const char *)name, STRLEN(name))
|| tv_check_lock(d->dv_lock, (const char *)name, STRLEN(name))) {
if (var_check_fixed(di->di_flags, (const char *)name, TV_CSTRING)
|| var_check_ro(di->di_flags, (const char *)name, TV_CSTRING)
|| tv_check_lock(d->dv_lock, (const char *)name, TV_CSTRING)) {
return FAIL;
}
if (d == NULL
|| tv_check_lock(d->dv_lock, (const char *)name, STRLEN(name))) {
|| tv_check_lock(d->dv_lock, (const char *)name, TV_CSTRING)) {
return FAIL;
}
@ -6553,10 +6553,8 @@ static void f_add(typval_T *argvars, typval_T *rettv, FunPtr fptr)
rettv->vval.v_number = 1; /* Default: Failed */
if (argvars[0].v_type == VAR_LIST) {
const char *const arg_errmsg = _("add() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
if ((l = argvars[0].vval.v_list) != NULL
&& !tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
&& !tv_check_lock(l->lv_lock, "add() argument", TV_TRANSLATE)) {
tv_list_append_tv(l, &argvars[1]);
tv_copy(&argvars[0], rettv);
}
@ -8152,7 +8150,6 @@ static void f_expand(typval_T *argvars, typval_T *rettv, FunPtr fptr)
static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
const char *const arg_errmsg = N_("extend() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
if (argvars[0].v_type == VAR_LIST && argvars[1].v_type == VAR_LIST) {
long before;
@ -8161,13 +8158,13 @@ static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
list_T *const l1 = argvars[0].vval.v_list;
list_T *const l2 = argvars[1].vval.v_list;
if (l1 == NULL) {
const bool locked = tv_check_lock(VAR_FIXED, arg_errmsg, arg_errmsg_len);
const bool locked = tv_check_lock(VAR_FIXED, arg_errmsg, TV_TRANSLATE);
(void)locked;
assert(locked == true);
} else if (l2 == NULL) {
// Do nothing
tv_copy(&argvars[0], rettv);
} else if (!tv_check_lock(l1->lv_lock, arg_errmsg, arg_errmsg_len)) {
} else if (!tv_check_lock(l1->lv_lock, arg_errmsg, TV_TRANSLATE)) {
listitem_T *item;
if (argvars[2].v_type != VAR_UNKNOWN) {
before = tv_get_number_chk(&argvars[2], &error);
@ -8195,13 +8192,13 @@ static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
dict_T *const d1 = argvars[0].vval.v_dict;
dict_T *const d2 = argvars[1].vval.v_dict;
if (d1 == NULL) {
const bool locked = tv_check_lock(VAR_FIXED, arg_errmsg, arg_errmsg_len);
const bool locked = tv_check_lock(VAR_FIXED, arg_errmsg, TV_TRANSLATE);
(void)locked;
assert(locked == true);
} else if (d2 == NULL) {
// Do nothing
tv_copy(&argvars[0], rettv);
} else if (!tv_check_lock(d1->dv_lock, arg_errmsg, arg_errmsg_len)) {
} else if (!tv_check_lock(d1->dv_lock, arg_errmsg, TV_TRANSLATE)) {
const char *action = "force";
// Check the third argument.
if (argvars[2].v_type != VAR_UNKNOWN) {
@ -8349,20 +8346,19 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
int todo;
char_u *ermsg = (char_u *)(map ? "map()" : "filter()");
const char *const arg_errmsg = (map
? _("map() argument")
: _("filter() argument"));
const size_t arg_errmsg_len = strlen(arg_errmsg);
? 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
|| (!map && tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len))) {
|| (!map && tv_check_lock(l->lv_lock, arg_errmsg, TV_TRANSLATE))) {
return;
}
} else if (argvars[0].v_type == VAR_DICT) {
if ((d = argvars[0].vval.v_dict) == NULL
|| (!map && tv_check_lock(d->dv_lock, arg_errmsg, arg_errmsg_len))) {
|| (!map && tv_check_lock(d->dv_lock, arg_errmsg, TV_TRANSLATE))) {
return;
}
} else {
@ -8395,8 +8391,8 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
di = TV_DICT_HI2DI(hi);
if (map
&& (tv_check_lock(di->di_tv.v_lock, arg_errmsg, arg_errmsg_len)
|| var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len))) {
&& (tv_check_lock(di->di_tv.v_lock, arg_errmsg, TV_TRANSLATE)
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE))) {
break;
}
@ -8407,8 +8403,8 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
break;
}
if (!map && rem) {
if (var_check_fixed(di->di_flags, arg_errmsg, arg_errmsg_len)
|| var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len)) {
if (var_check_fixed(di->di_flags, arg_errmsg, TV_TRANSLATE)
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE)) {
break;
}
tv_dict_item_remove(d, di);
@ -8421,7 +8417,7 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
for (li = l->lv_first; li != NULL; li = nli) {
if (map
&& tv_check_lock(li->li_tv.v_lock, arg_errmsg, arg_errmsg_len)) {
&& tv_check_lock(li->li_tv.v_lock, arg_errmsg, TV_TRANSLATE)) {
break;
}
nli = li->li_next;
@ -11158,13 +11154,12 @@ static void f_insert(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
list_T *l;
bool error = false;
const char *const arg_errmsg = _("insert() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
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, arg_errmsg, arg_errmsg_len)) {
&& !tv_check_lock(l->lv_lock, N_("insert() argument"),
TV_TRANSLATE)) {
long before = 0;
if (argvars[2].v_type != VAR_UNKNOWN) {
before = tv_get_number_chk(&argvars[2], &error);
@ -13205,21 +13200,20 @@ static void f_remove(typval_T *argvars, typval_T *rettv, FunPtr fptr)
long end;
dict_T *d;
dictitem_T *di;
const char *const arg_errmsg = _("remove() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
const char *const 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, arg_errmsg, arg_errmsg_len)) {
&& !tv_check_lock(d->dv_lock, arg_errmsg, TV_TRANSLATE)) {
const char *key = tv_get_string_chk(&argvars[1]);
if (key != NULL) {
di = tv_dict_find(d, key, -1);
if (di == NULL) {
EMSG2(_(e_dictkey), key);
} else if (!var_check_fixed(di->di_flags, arg_errmsg, arg_errmsg_len)
&& !var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len)) {
} else if (!var_check_fixed(di->di_flags, arg_errmsg, TV_TRANSLATE)
&& !var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE)) {
*rettv = di->di_tv;
di->di_tv = TV_INITIAL_VALUE;
tv_dict_item_remove(d, di);
@ -13232,7 +13226,7 @@ static void f_remove(typval_T *argvars, typval_T *rettv, FunPtr fptr)
} 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, arg_errmsg, arg_errmsg_len)) {
&& !tv_check_lock(l->lv_lock, arg_errmsg, TV_TRANSLATE)) {
bool error = false;
idx = tv_get_number_chk(&argvars[1], &error);
@ -13503,14 +13497,12 @@ static void f_resolve(typval_T *argvars, typval_T *rettv, FunPtr fptr)
*/
static void f_reverse(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
const char *const arg_errmsg = _("reverse() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
list_T *l;
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, arg_errmsg, arg_errmsg_len)) {
&& !tv_check_lock(l->lv_lock, N_("reverse() argument"),
TV_TRANSLATE)) {
listitem_T *li = l->lv_last;
l->lv_first = l->lv_last = NULL;
l->lv_len = 0;
@ -15202,16 +15194,14 @@ static void do_sort_uniq(typval_T *argvars, typval_T *rettv, bool sort)
sortinfo = &info;
const char *const arg_errmsg = (sort
? _("sort() argument")
: _("uniq() argument"));
const size_t arg_errmsg_len = strlen(arg_errmsg);
? N_("sort() argument")
: N_("uniq() argument"));
if (argvars[0].v_type != VAR_LIST) {
EMSG2(_(e_listarg), sort ? "sort()" : "uniq()");
} else {
l = argvars[0].vval.v_list;
if (l == NULL
|| tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
if (l == NULL || tv_check_lock(l->lv_lock, arg_errmsg, TV_TRANSLATE)) {
goto theend;
}
rettv->vval.v_list = l;
@ -18876,24 +18866,37 @@ static void set_var(const char *name, const size_t name_len, typval_T *const tv,
///
/// @param[in] flags di_flags attribute value.
/// @param[in] name Variable name, for use in error message.
/// @param[in] name_len Variable name length.
/// @param[in] name_len Variable name length. Use #TV_TRANSLATE to translate
/// variable name and compute the length. Use #TV_CSTRING
/// to compute the length with strlen() without
/// translating.
///
/// @return True if variable is read-only: either always or in sandbox when
/// sandbox is enabled, false otherwise.
bool var_check_ro(const int flags, const char *const name,
const size_t name_len)
bool var_check_ro(const int flags, const char *name,
size_t name_len)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
const char *error_message = NULL;
if (flags & DI_FLAGS_RO) {
emsgf(_(e_readonlyvar), (int)name_len, name);
return true;
error_message = N_(e_readonlyvar);
} else if ((flags & DI_FLAGS_RO_SBX) && sandbox) {
error_message = N_("E794: Cannot set variable in the sandbox: \"%.*s\"");
}
if ((flags & DI_FLAGS_RO_SBX) && sandbox) {
emsgf(_("E794: Cannot set variable in the sandbox: \"%.*s\""),
(int)name_len, name);
return true;
if (error_message == NULL) {
return false;
}
return false;
if (name_len == TV_TRANSLATE) {
name = _(name);
name_len = strlen(name);
} else if (name_len == TV_CSTRING) {
name_len = strlen(name);
}
emsgf(_(error_message), (int)name_len, name);
return true;
}
/// Check whether variable is fixed (DI_FLAGS_FIX)
@ -18902,14 +18905,23 @@ bool var_check_ro(const int flags, const char *const name,
///
/// @param[in] flags di_flags attribute value.
/// @param[in] name Variable name, for use in error message.
/// @param[in] name_len Variable name length.
/// @param[in] name_len Variable name length. Use #TV_TRANSLATE to translate
/// variable name and compute the length. Use #TV_CSTRING
/// to compute the length with strlen() without
/// translating.
///
/// @return True if variable is fixed, false otherwise.
static bool var_check_fixed(const int flags, const char *const name,
const size_t name_len)
static bool var_check_fixed(const int flags, const char *name,
size_t name_len)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (flags & DI_FLAGS_FIX) {
if (name_len == TV_TRANSLATE) {
name = _(name);
name_len = strlen(name);
} else if (name_len == TV_CSTRING) {
name_len = strlen(name);
}
emsgf(_("E795: Cannot delete variable %.*s"), (int)name_len, name);
return true;
}
@ -19716,12 +19728,12 @@ void ex_function(exarg_T *eap)
}
if (fudi.fd_di == NULL) {
if (tv_check_lock(fudi.fd_dict->dv_lock, (const char *)eap->arg,
STRLEN(eap->arg))) {
TV_CSTRING)) {
// Can't add a function to a locked dictionary
goto erret;
}
} else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, (const char *)eap->arg,
STRLEN(eap->arg))) {
TV_CSTRING)) {
// Can't change an existing function if it is locked
goto erret;
}

22
src/nvim/eval/typval.c
View File

@ -2045,11 +2045,14 @@ bool tv_islocked(const typval_T *const tv)
///
/// @param[in] lock Lock status.
/// @param[in] name Variable name, used in the error message.
/// @param[in] name_len Variable name length.
/// @param[in] name_len Variable name length. Use #TV_TRANSLATE to translate
/// variable name and compute the length. Use #TV_CSTRING
/// to compute the length with strlen() without
/// translating.
///
/// @return true if variable is locked, false otherwise.
bool tv_check_lock(const VarLockStatus lock, const char *const name,
const size_t name_len)
bool tv_check_lock(const VarLockStatus lock, const char *name,
size_t name_len)
FUNC_ATTR_WARN_UNUSED_RESULT
{
const char *error_message = NULL;
@ -2068,10 +2071,17 @@ bool tv_check_lock(const VarLockStatus lock, const char *const name,
}
assert(error_message != NULL);
const char *const unknown_name = _("Unknown");
if (name == NULL) {
name = _("Unknown");
name_len = strlen(name);
} else if (name_len == TV_TRANSLATE) {
name = _(name);
name_len = strlen(name);
} else if (name_len == TV_CSTRING) {
name_len = strlen(name);
}
emsgf(_(error_message), (name != NULL ? name_len : strlen(unknown_name)),
(name != NULL ? name : unknown_name));
emsgf(_(error_message), (int)name_len, name);
return true;
}

11
src/nvim/eval/typval.h
View File

@ -423,6 +423,17 @@ static inline bool tv_is_func(const typval_T tv)
return tv.v_type == VAR_FUNC || tv.v_type == VAR_PARTIAL;
}
/// Specify that argument needs to be translated
///
/// Used for size_t length arguments to avoid calling gettext() and strlen()
/// unless needed.
#define TV_TRANSLATE (SIZE_MAX)
/// Specify that argument is a NUL-terminated C string
///
/// Used for size_t length arguments to avoid calling strlen() unless needed.
#define TV_CSTRING (SIZE_MAX - 1)
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "eval/typval.h.generated.h"
#endif