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Fixes incorrect adding to last in self_list 

Fixes https://github.com/godotengine/godot/issues/18052
This commit is contained in:
Crazy-P 2018-04-11 19:59:41 +08:00
parent d87307d850
commit 68dda540fd
1 changed files with 29 additions and 18 deletions
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47
core/self_list.h
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@ -39,6 +39,7 @@ public:
class List {
SelfList<T> *_first;
SelfList<T> *_last;
public:
void add(SelfList<T> *p_elem) {
@ -48,47 +49,54 @@ public:
p_elem->_root = this;
p_elem->_next = _first;
p_elem->_prev = NULL;
if (_first)
if (_first) {
_first->_prev = p_elem;
} else {
_last = p_elem;
}
_first = p_elem;
}
void add_last(SelfList<T> *p_elem) {
ERR_FAIL_COND(p_elem->_root);
if (!_first) {
add(p_elem);
return;
}
SelfList<T> *e = _first;
while (e->next()) {
e = e->next();
}
e->_next = p_elem;
p_elem->_prev = e->_next;
p_elem->_root = this;
p_elem->_next = NULL;
p_elem->_prev = _last;
if (_last) {
_last->_next = p_elem;
} else {
_first = p_elem;
}
_last = p_elem;
}
void remove(SelfList<T> *p_elem) {
ERR_FAIL_COND(p_elem->_root != this);
if (p_elem->_next) {
p_elem->_next->_prev = p_elem->_prev;
}
if (p_elem->_prev) {
if (p_elem->_prev) {
p_elem->_prev->_next = p_elem->_next;
}
if (_first == p_elem) {
_first = p_elem->_next;
}
if (_last == p_elem) {
_last = p_elem->_prev;
}
p_elem->_next = NULL;
p_elem->_prev = NULL;
p_elem->_root = NULL;
@ -96,7 +104,10 @@ public:
_FORCE_INLINE_ SelfList<T> *first() { return _first; }
_FORCE_INLINE_ const SelfList<T> *first() const { return _first; }
_FORCE_INLINE_ List() { _first = NULL; }
_FORCE_INLINE_ List() {
_first = NULL;
_last = NULL;
}
_FORCE_INLINE_ ~List() { ERR_FAIL_COND(_first != NULL); }
};