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vim-patch:8.2.3089: garbage collection has useless code #15027

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Problem:    Garbage collection has useless code.
Solution:   Bail out when aborting. (closes vim/vim#8504)
20cc528320
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dundargoc 2021-07-08 20:03:33 +02:00 committed by GitHub
parent 03d15d9e09
commit 4339f528db
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 38 deletions
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76
src/nvim/eval/userfunc.c
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@ -3459,54 +3459,54 @@ dictitem_T *find_var_in_scoped_ht(const char *name, const size_t namelen,
/// Set "copyID + 1" in previous_funccal and callers.
bool set_ref_in_previous_funccal(int copyID)
{
bool abort = false;
for (funccall_T *fc = previous_funccal; !abort && fc != NULL;
for (funccall_T *fc = previous_funccal; fc != NULL;
fc = fc->caller) {
fc->fc_copyID = copyID + 1;
abort = abort
|| set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1, NULL)
|| set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1, NULL)
|| set_ref_in_list(&fc->l_varlist, copyID + 1, NULL);
if (set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID + 1, NULL)
|| set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID + 1, NULL)
|| set_ref_in_list(&fc->l_varlist, copyID + 1, NULL)) {
return true;
}
}
return abort;
return false;
}
static bool set_ref_in_funccal(funccall_T *fc, int copyID)
{
bool abort = false;
if (fc->fc_copyID != copyID) {
fc->fc_copyID = copyID;
abort = abort
|| set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL)
|| set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL)
|| set_ref_in_list(&fc->l_varlist, copyID, NULL)
|| set_ref_in_func(NULL, fc->func, copyID);
if (set_ref_in_ht(&fc->l_vars.dv_hashtab, copyID, NULL)
|| set_ref_in_ht(&fc->l_avars.dv_hashtab, copyID, NULL)
|| set_ref_in_list(&fc->l_varlist, copyID, NULL)
|| set_ref_in_func(NULL, fc->func, copyID)) {
return true;
}
}
return abort;
return false;
}
/// Set "copyID" in all local vars and arguments in the call stack.
bool set_ref_in_call_stack(int copyID)
{
bool abort = false;
for (funccall_T *fc = current_funccal; !abort && fc != NULL;
for (funccall_T *fc = current_funccal; fc != NULL;
fc = fc->caller) {
abort = abort || set_ref_in_funccal(fc, copyID);
}
// Also go through the funccal_stack.
for (funccal_entry_T *entry = funccal_stack; !abort && entry != NULL;
entry = entry->next) {
for (funccall_T *fc = entry->top_funccal; !abort && fc != NULL;
fc = fc->caller) {
abort = abort || set_ref_in_funccal(fc, copyID);
if (set_ref_in_funccal(fc, copyID)) {
return true;
}
}
return abort;
// Also go through the funccal_stack.
for (funccal_entry_T *entry = funccal_stack; entry != NULL;
entry = entry->next) {
for (funccall_T *fc = entry->top_funccal; fc != NULL;
fc = fc->caller) {
if (set_ref_in_funccal(fc, copyID)) {
return true;
}
}
}
return false;
}
/// Set "copyID" in all functions available by name.
@ -3514,7 +3514,6 @@ bool set_ref_in_functions(int copyID)
{
int todo;
hashitem_T *hi = NULL;
bool abort = false;
ufunc_T *fp;
todo = (int)func_hashtab.ht_used;
@ -3522,24 +3521,25 @@ bool set_ref_in_functions(int copyID)
if (!HASHITEM_EMPTY(hi)) {
todo--;
fp = HI2UF(hi);
if (!func_name_refcount(fp->uf_name)) {
abort = abort || set_ref_in_func(NULL, fp, copyID);
if (!func_name_refcount(fp->uf_name)
&& set_ref_in_func(NULL, fp, copyID)) {
return true;
}
}
}
return abort;
return false;
}
/// Set "copyID" in all function arguments.
bool set_ref_in_func_args(int copyID)
{
bool abort = false;
for (int i = 0; i < funcargs.ga_len; i++) {
abort = abort || set_ref_in_item(((typval_T **)funcargs.ga_data)[i],
copyID, NULL, NULL);
if (set_ref_in_item(((typval_T **)funcargs.ga_data)[i],
copyID, NULL, NULL)) {
return true;
}
}
return abort;
return false;
}
/// Mark all lists and dicts referenced through function "name" with "copyID".