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vim-patch:8.2.1210: using ht_used when looping through a hashtab is less reliable

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Problem:    Using ht_used when looping through a hashtab is less reliable.
Solution:   Use ht_changed in a few more places.

1f22cc5cdb

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq 2022-12-17 08:50:17 +08:00
parent 73a6000120
commit b969844398
1 changed files with 9 additions and 7 deletions
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16
src/nvim/eval/userfunc.c
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@ -1297,7 +1297,7 @@ void free_all_functions(void)
ufunc_T *fp;
uint64_t skipped = 0;
uint64_t todo = 1;
uint64_t used;
int changed;
// Clean up the current_funccal chain and the funccal stack.
while (current_funccal != NULL) {
@ -1321,9 +1321,9 @@ void free_all_functions(void)
if (func_name_refcount((char_u *)fp->uf_name)) {
skipped++;
} else {
used = func_hashtab.ht_used;
changed = func_hashtab.ht_changed;
func_clear(fp, true);
if (used != func_hashtab.ht_used) {
if (changed != func_hashtab.ht_changed) {
skipped = 0;
break;
}
@ -1993,8 +1993,8 @@ char *save_function_name(char **name, bool skip, int flags, funcdict_T *fudi)
/// Otherwise functions matching "regmatch".
static void list_functions(regmatch_T *regmatch)
{
const size_t used = func_hashtab.ht_used;
size_t todo = used;
const int changed = func_hashtab.ht_changed;
size_t todo = func_hashtab.ht_used;
const hashitem_T *const ht_array = func_hashtab.ht_array;
for (const hashitem_T *hi = ht_array; todo > 0 && !got_int; hi++) {
@ -2008,7 +2008,7 @@ static void list_functions(regmatch_T *regmatch)
: (!isdigit(*fp->uf_name)
&& vim_regexec(regmatch, (char *)fp->uf_name, 0)))) {
list_func_head(fp, false, false);
if (used != func_hashtab.ht_used || ht_array != func_hashtab.ht_array) {
if (changed != func_hashtab.ht_changed) {
emsg(_("E454: function list was modified"));
return;
}
@ -2730,15 +2730,17 @@ bool function_exists(const char *const name, bool no_deref)
char *get_user_func_name(expand_T *xp, int idx)
{
static size_t done;
static int changed;
static hashitem_T *hi;
ufunc_T *fp;
if (idx == 0) {
done = 0;
hi = func_hashtab.ht_array;
changed = func_hashtab.ht_changed;
}
assert(hi);
if (done < func_hashtab.ht_used) {
if (changed == func_hashtab.ht_changed && done < func_hashtab.ht_used) {
if (done++ > 0) {
hi++;
}