bool ArrayData::hasInternalReference(PointerSet &vars) const {
if (supportValueRef()) {
for (ArrayIter iter(this); iter; ++iter) {
CVarRef var = iter.secondRef();
if (var.isReferenced()) {
Variant *pvar = var.getVariantData();
if (vars.find(pvar) != vars.end()) {
return true;
}
vars.insert(pvar);
}
if (var.isObject()) {
ObjectData *pobj = var.getObjectData();
if (vars.find(pobj) != vars.end()) {
return true;
}
vars.insert(pobj);
if (pobj->o_toArray().get()->hasInternalReference(vars)) {
return true;
}
} else if (var.isArray() &&
var.getArrayData()->hasInternalReference(vars)) {
return true;
}
}
}
return false;
}
SharedVariant* SharedVariant::convertObj(CVarRef var) {
if (!var.is(KindOfObject) || getObjAttempted()) {
return NULL;
}
setObjAttempted();
PointerSet seen;
ObjectData *obj = var.getObjectData();
CArrRef arr = obj->o_toArray();
if (arr->hasInternalReference(seen, true)) {
return NULL;
}
SharedVariant *tmp = new SharedVariant(var, false, true, true);
tmp->setObjAttempted();
return tmp;
}
SharedVariant* SharedVariant::convertObj(CVarRef var) {
if (!var.is(KindOfObject) || getObjAttempted()) {
return NULL;
}
setObjAttempted();
PointerSet seen;
ObjectData *obj = var.getObjectData();
if (obj->o_instanceof("Serializable")) {
// should also check the object itself
return NULL;
}
CArrRef arr = obj->o_toArray();
if (arr->hasInternalReference(seen, true)) {
return NULL;
}
SharedVariant *tmp = new SharedVariant(var, false, true, true);
tmp->setObjAttempted();
return tmp;
}
bool ArrayData::hasInternalReference(PointerSet &vars,
bool ds /* = false */) const {
if (isSharedMap()) return false;
for (ArrayIter iter(this); iter; ++iter) {
CVarRef var = iter.secondRef();
if (var.isReferenced()) {
Variant *pvar = var.getVariantData();
if (vars.find(pvar) != vars.end()) {
return true;
}
vars.insert(pvar);
}
if (var.isObject()) {
ObjectData *pobj = var.getObjectData();
if (vars.find(pobj) != vars.end()) {
return true;
}
vars.insert(pobj);
if (pobj->o_instanceof("Serializable")) {
if (ds) {
// We want to detect Serializable object as well
return true;
} else {
// Serializable object does not have internal reference issue
return false;
}
}
if (pobj->o_toArray().get()->hasInternalReference(vars, ds)) {
return true;
}
} else if (var.isArray() &&
var.getArrayData()->hasInternalReference(vars, ds)) {
return true;
}
}
return false;
}