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eval: Refactor var_check_ro, tv_check_lock and var_check_fixed

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- They are no longer responble for using gettext.
- They now receive string length and use %.* format specifier in messages.
- And one less global: one of the error messages is never repeated.
This commit is contained in:
ZyX 2017-02-21 00:07:04 +03:00
parent d820daf076
commit d5ab50a040
2 changed files with 135 additions and 86 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

219
src/nvim/eval.c
View File

@ -2191,7 +2191,8 @@ get_lval (
clear_tv(&var1);
break;
// existing variable, need to check if it can be changed
} else if (var_check_ro(lp->ll_di->di_flags, name, false)) {
} else if (var_check_ro(lp->ll_di->di_flags, (const char *)name,
STRLEN(name))) {
if (len == -1) {
clear_tv(&var1);
}
@ -2295,8 +2296,10 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, ch
if (get_var_tv((const char *)lp->ll_name, (int)STRLEN(lp->ll_name),
&tv, &di, true, false) == OK) {
if ((di == NULL
|| (!var_check_ro(di->di_flags, lp->ll_name, false)
&& !tv_check_lock(di->di_tv.v_lock, lp->ll_name, false)))
|| (!var_check_ro(di->di_flags, (const char *)lp->ll_name,
STRLEN(lp->ll_name))
&& !tv_check_lock(di->di_tv.v_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name))))
&& tv_op(&tv, rettv, op) == OK) {
set_var(lp->ll_name, &tv, false);
}
@ -2309,7 +2312,7 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, ch
} else if (tv_check_lock(lp->ll_newkey == NULL
? lp->ll_tv->v_lock
: lp->ll_tv->vval.v_dict->dv_lock,
lp->ll_name, false)) {
(const char *)lp->ll_name, STRLEN(lp->ll_name))) {
} else if (lp->ll_range) {
listitem_T *ll_li = lp->ll_li;
int ll_n1 = lp->ll_n1;
@ -2317,7 +2320,8 @@ static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv, int copy, ch
// Check whether any of the list items is locked
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, lp->ll_name, false)) {
if (tv_check_lock(ll_li->li_tv.v_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name))) {
return;
}
ri = ri->li_next;
@ -2929,9 +2933,12 @@ static int do_unlet_var(lval_T *lp, char_u *name_end, int forceit)
}
*name_end = cc;
} else if ((lp->ll_list != NULL
&& tv_check_lock(lp->ll_list->lv_lock, lp->ll_name, false))
&& tv_check_lock(lp->ll_list->lv_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name)))
|| (lp->ll_dict != NULL
&& tv_check_lock(lp->ll_dict->dv_lock, lp->ll_name, false))) {
&& tv_check_lock(lp->ll_dict->dv_lock,
(const char *)lp->ll_name,
STRLEN(lp->ll_name)))) {
return FAIL;
} else if (lp->ll_range) {
listitem_T *li;
@ -2940,7 +2947,8 @@ static int do_unlet_var(lval_T *lp, char_u *name_end, int forceit)
while (ll_li != NULL && (lp->ll_empty2 || lp->ll_n2 >= ll_n1)) {
li = ll_li->li_next;
if (tv_check_lock(ll_li->li_tv.v_lock, lp->ll_name, false)) {
if (tv_check_lock(ll_li->li_tv.v_lock, (const char *)lp->ll_name,
STRLEN(lp->ll_name))) {
return false;
}
ll_li = li;
@ -3022,13 +3030,14 @@ int do_unlet(char_u *name, int forceit)
}
if (hi != NULL && !HASHITEM_EMPTY(hi)) {
di = HI2DI(hi);
if (var_check_fixed(di->di_flags, name, false)
|| var_check_ro(di->di_flags, name, false)
|| tv_check_lock(d->dv_lock, name, false)) {
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))) {
return FAIL;
}
if (d == NULL || tv_check_lock(d->dv_lock, name, false)) {
if (d == NULL
|| tv_check_lock(d->dv_lock, (const char *)name, STRLEN(name))) {
return FAIL;
}
@ -7803,9 +7812,10 @@ 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,
(char_u *)N_("add() argument"), true)) {
&& !tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
list_append_tv(l, &argvars[1]);
copy_tv(&argvars[0], rettv);
}
@ -9382,7 +9392,8 @@ void dict_extend(dict_T *d1, dict_T *d2, char_u *action)
hashitem_T *hi2;
int todo;
bool watched = is_watched(d1);
char_u *arg_errmsg = (char_u *)N_("extend() argument");
const char *const arg_errmsg = _("extend() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
todo = (int)d2->dv_hashtab.ht_used;
for (hi2 = d2->dv_hashtab.ht_array; todo > 0; ++hi2) {
@ -9416,8 +9427,8 @@ void dict_extend(dict_T *d1, dict_T *d2, char_u *action)
} else if (*action == 'f' && HI2DI(hi2) != di1) {
typval_T oldtv;
if (tv_check_lock(di1->di_tv.v_lock, arg_errmsg, true)
|| var_check_ro(di1->di_flags, arg_errmsg, true)) {
if (tv_check_lock(di1->di_tv.v_lock, arg_errmsg, arg_errmsg_len)
|| var_check_ro(di1->di_flags, arg_errmsg, arg_errmsg_len)) {
break;
}
@ -9443,7 +9454,8 @@ void dict_extend(dict_T *d1, dict_T *d2, char_u *action)
*/
static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
char_u *arg_errmsg = (char_u *)N_("extend() argument");
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) {
list_T *l1, *l2;
@ -9453,7 +9465,7 @@ static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
l1 = argvars[0].vval.v_list;
l2 = argvars[1].vval.v_list;
if (l1 != NULL && !tv_check_lock(l1->lv_lock, arg_errmsg, true)
if (l1 != NULL && !tv_check_lock(l1->lv_lock, arg_errmsg, arg_errmsg_len)
&& l2 != NULL) {
if (argvars[2].v_type != VAR_UNKNOWN) {
before = get_tv_number_chk(&argvars[2], &error);
@ -9483,7 +9495,7 @@ static void f_extend(typval_T *argvars, typval_T *rettv, FunPtr fptr)
d1 = argvars[0].vval.v_dict;
d2 = argvars[1].vval.v_dict;
if (d1 != NULL && !tv_check_lock(d1->dv_lock, arg_errmsg, true)
if (d1 != NULL && !tv_check_lock(d1->dv_lock, arg_errmsg, arg_errmsg_len)
&& d2 != NULL) {
/* Check the third argument. */
if (argvars[2].v_type != VAR_UNKNOWN) {
@ -9626,20 +9638,22 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
typval_T save_key;
int rem = false;
int todo;
char_u *ermsg = (char_u *)(map ? "map()" : "filter()");
char_u *arg_errmsg = (char_u *)(map ? N_("map() argument")
: N_("filter() argument"));
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);
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, true))) {
|| (!map && tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len))) {
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, true))) {
|| (!map && tv_check_lock(d->dv_lock, arg_errmsg, arg_errmsg_len))) {
return;
}
} else {
@ -9672,8 +9686,8 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
di = HI2DI(hi);
if (map
&& (tv_check_lock(di->di_tv.v_lock, arg_errmsg, true)
|| var_check_ro(di->di_flags, arg_errmsg, true))) {
&& (tv_check_lock(di->di_tv.v_lock, arg_errmsg, arg_errmsg_len)
|| var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len))) {
break;
}
@ -9683,8 +9697,8 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
if (r == FAIL || did_emsg)
break;
if (!map && rem) {
if (var_check_fixed(di->di_flags, arg_errmsg, true)
|| var_check_ro(di->di_flags, arg_errmsg, true)) {
if (var_check_fixed(di->di_flags, arg_errmsg, arg_errmsg_len)
|| var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len)) {
break;
}
dictitem_remove(d, di);
@ -9696,7 +9710,8 @@ static void filter_map(typval_T *argvars, typval_T *rettv, int map)
vimvars[VV_KEY].vv_type = VAR_NUMBER;
for (li = l->lv_first; li != NULL; li = nli) {
if (map && tv_check_lock(li->li_tv.v_lock, arg_errmsg, true)) {
if (map
&& tv_check_lock(li->li_tv.v_lock, arg_errmsg, arg_errmsg_len)) {
break;
}
nli = li->li_next;
@ -12375,12 +12390,13 @@ static void f_insert(typval_T *argvars, typval_T *rettv, FunPtr fptr)
listitem_T *item;
list_T *l;
int 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,
(char_u *)N_("insert() argument"), true)) {
&& !tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
if (argvars[2].v_type != VAR_UNKNOWN) {
before = get_tv_number_chk(&argvars[2], &error);
}
@ -14404,20 +14420,21 @@ static void f_remove(typval_T *argvars, typval_T *rettv, FunPtr fptr)
char_u *key;
dict_T *d;
dictitem_T *di;
char_u *arg_errmsg = (char_u *)N_("remove() argument");
const char *const arg_errmsg = _("remove() argument");
const size_t arg_errmsg_len = strlen(arg_errmsg);
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, true)) {
&& !tv_check_lock(d->dv_lock, arg_errmsg, arg_errmsg_len)) {
key = get_tv_string_chk(&argvars[1]);
if (key != NULL) {
di = dict_find(d, key, -1);
if (di == NULL) {
EMSG2(_(e_dictkey), key);
} else if (!var_check_fixed(di->di_flags, arg_errmsg, true)
&& !var_check_ro(di->di_flags, arg_errmsg, true)) {
} else if (!var_check_fixed(di->di_flags, arg_errmsg, arg_errmsg_len)
&& !var_check_ro(di->di_flags, arg_errmsg, arg_errmsg_len)) {
*rettv = di->di_tv;
init_tv(&di->di_tv);
dictitem_remove(d, di);
@ -14430,7 +14447,7 @@ 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, true)) {
&& !tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
int error = (int)false;
idx = get_tv_number_chk(&argvars[1], &error);
@ -14701,19 +14718,19 @@ fail:
*/
static void f_reverse(typval_T *argvars, typval_T *rettv, FunPtr fptr)
{
list_T *l;
listitem_T *li, *ni;
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,
(char_u *)N_("reverse() argument"), true)) {
li = l->lv_last;
&& !tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
listitem_T *li = l->lv_last;
l->lv_first = l->lv_last = NULL;
l->lv_len = 0;
while (li != NULL) {
ni = li->li_prev;
listitem_T *const ni = li->li_prev;
list_append(l, li);
li = ni;
}
@ -16358,16 +16375,17 @@ static void do_sort_uniq(typval_T *argvars, typval_T *rettv, bool sort)
sortinfo_T *old_sortinfo = sortinfo;
sortinfo = &info;
const char *const arg_errmsg = (sort
? _("sort() argument")
: _("uniq() argument"));
const size_t arg_errmsg_len = strlen(arg_errmsg);
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,
(char_u *)(sort
? N_("sort() argument")
: N_("uniq() argument")),
true)) {
|| tv_check_lock(l->lv_lock, arg_errmsg, arg_errmsg_len)) {
goto theend;
}
rettv->vval.v_list = l;
@ -20475,8 +20493,8 @@ set_var (
if (v != NULL) {
// existing variable, need to clear the value
if (var_check_ro(v->di_flags, name, false)
|| tv_check_lock(v->di_tv.v_lock, name, false)) {
if (var_check_ro(v->di_flags, (const char *)name, STRLEN(name))
|| tv_check_lock(v->di_tv.v_lock, (const char *)name, STRLEN(name))) {
return;
}
@ -20549,30 +20567,47 @@ set_var (
}
}
// Return true if di_flags "flags" indicates variable "name" is read-only.
// Also give an error message.
static bool var_check_ro(int flags, char_u *name, bool use_gettext)
/// Check whether variable is read-only (DI_FLAGS_RO, DI_FLAGS_RO_SBX)
///
/// Also gives an error message.
///
/// @param[in] flags di_flags attribute value.
/// @param[in] name Variable name, for use in error message.
/// @param[in] name_len Variable name length.
///
/// @return True if variable is read-only: either always or in sandbox when
/// sandbox is enabled, false otherwise.
static bool var_check_ro(const int flags, const char *const name,
const size_t name_len)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (flags & DI_FLAGS_RO) {
const char_u *const name_translated = (
use_gettext ? (char_u *)_(name) : name);
emsgf(_(e_readonlyvar), (int)STRLEN(name_translated), name_translated);
emsgf(_(e_readonlyvar), (int)name_len, name);
return true;
}
if ((flags & DI_FLAGS_RO_SBX) && sandbox) {
EMSG2(_(e_readonlysbx), use_gettext ? (char_u *)_(name) : name);
emsgf(_("E794: Cannot set variable in the sandbox: \"%.*s\""),
(int)name_len, name);
return true;
}
return false;
}
// Return true if di_flags "flags" indicates variable "name" is fixed.
// Also give an error message.
static bool var_check_fixed(int flags, char_u *name, bool use_gettext)
/// Check whether variable is fixed (DI_FLAGS_FIX)
///
/// Also gives an error message.
///
/// @param[in] flags di_flags attribute value.
/// @param[in] name Variable name, for use in error message.
/// @param[in] name_len Variable name length.
///
/// @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)
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (flags & DI_FLAGS_FIX) {
EMSG2(_("E795: Cannot delete variable %s"),
use_gettext ? (char_u *)_(name) : name);
emsgf(_("E795: Cannot delete variable %.*s"), (int)name_len, name);
return true;
}
return false;
@ -20623,28 +20658,42 @@ static int valid_varname(char_u *varname)
return TRUE;
}
// Return true if typeval "tv" is set to be locked (immutable).
// Also give an error message, using "name" or _("name") when use_gettext is
// true.
static bool tv_check_lock(int lock, char_u *name, bool use_gettext)
/// Check whether typval is locked
///
/// Also gives an error message.
///
/// @param[in] lock Lock status.
/// @param[in] name Value name, for use in error message.
/// @param[in] name_len Value name length.
///
/// @return True if value is locked.
static bool tv_check_lock(const VarLockStatus lock,
const char *const name,
const size_t name_len)
FUNC_ATTR_WARN_UNUSED_RESULT
{
if (lock & VAR_LOCKED) {
EMSG2(_("E741: Value is locked: %s"),
name == NULL
? (char_u *)_("Unknown")
: use_gettext ? (char_u *)_(name)
: name);
return true;
const char *error_message = NULL;
switch (lock) {
case VAR_UNLOCKED: {
return false;
}
case VAR_LOCKED: {
error_message = N_("E741: Value is locked: %.*s");
break;
}
case VAR_FIXED: {
error_message = N_("E742: Cannot change value of %.*s");
break;
}
}
if (lock & VAR_FIXED) {
EMSG2(_("E742: Cannot change value of %s"),
name == NULL
? (char_u *)_("Unknown")
: use_gettext ? (char_u *)_(name)
: name);
return true;
}
return false;
assert(error_message != NULL);
const char *const unknown_name = _("Unknown");
emsgf(_(error_message), (name != NULL ? name_len : strlen(unknown_name)),
(name != NULL ? name : unknown_name));
return true;
}
/*
@ -21443,11 +21492,13 @@ void ex_function(exarg_T *eap)
goto erret;
}
if (fudi.fd_di == NULL) {
if (tv_check_lock(fudi.fd_dict->dv_lock, eap->arg, false)) {
if (tv_check_lock(fudi.fd_dict->dv_lock, (const char *)eap->arg,
STRLEN(eap->arg))) {
// Can't add a function to a locked dictionary
goto erret;
}
} else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, eap->arg, false)) {
} else if (tv_check_lock(fudi.fd_di->di_tv.v_lock, (const char *)eap->arg,
STRLEN(eap->arg))) {
// Can't change an existing function if it is locked
goto erret;
}

2
src/nvim/globals.h
View File

@ -1173,8 +1173,6 @@ EXTERN char_u e_re_damg[] INIT(= N_("E43: Damaged match string"));
EXTERN char_u e_re_corr[] INIT(= N_("E44: Corrupted regexp program"));
EXTERN char_u e_readonly[] INIT(= N_(
"E45: 'readonly' option is set (add ! to override)"));
EXTERN char_u e_readonlysbx[] INIT(= N_(
"E794: Cannot set variable in the sandbox: \"%s\""));
EXTERN char_u e_readerrf[] INIT(= N_("E47: Error while reading errorfile"));
EXTERN char_u e_sandbox[] INIT(= N_("E48: Not allowed in sandbox"));
EXTERN char_u e_secure[] INIT(= N_("E523: Not allowed here"));