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.getRefData();
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 (ds && pobj->o_instanceof("Serializable")) {
return true;
}
if (pobj->hasInternalReference(vars, ds)) {
return true;
}
} else if (var.isArray() &&
var.getArrayData()->hasInternalReference(vars, ds)) {
return true;
}
}
return false;
}
ObjectData *FuncScopeVariableEnvironment::getContinuation() const {
const vector<ParameterPtr> ¶ms = m_func->getParams();
if (m_func->name().find('0') == 0 && params.size() == 1
&& params[0]->getName().find(CONTINUATION_OBJECT_NAME) == 0) {
Array args = getParams();
ASSERT(args.size() == 1);
ObjectData *obj = args[0].getObjectData();
if (obj->o_instanceof("Continuation")) return obj;
}
return NULL;
}
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;
}
if (obj->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;
}
bool f_is_callable(CVarRef v, bool syntax /* = false */,
VRefParam name /* = null */) {
bool ret = true;
if (LIKELY(!syntax)) {
if (hhvm) {
CallerFrame cf;
ObjectData* obj = NULL;
HPHP::VM::Class* cls = NULL;
StringData* invName = NULL;
const HPHP::VM::Func* f = vm_decode_function(v, cf(), false, obj, cls,
invName, false);
if (f == NULL) {
ret = false;
}
if (invName != NULL) {
LITSTR_DECREF(invName);
}
} else {
MethodCallPackage mcp;
String classname, methodname;
bool doBind;
ret = get_user_func_handler(v, true, mcp,
classname, methodname, doBind, false);
if (ret && mcp.ci->m_flags & (CallInfo::Protected|CallInfo::Private)) {
classname = mcp.getClassName();
if (!ClassInfo::HasAccess(classname, *mcp.name,
mcp.ci->m_flags & CallInfo::StaticMethod ||
!mcp.obj,
mcp.obj)) {
ret = false;
}
}
}
if (!name.isReferenced()) return ret;
}
Variant::TypedValueAccessor tv_func = v.getTypedAccessor();
if (Variant::IsString(tv_func)) {
if (name.isReferenced()) name = Variant::GetStringData(tv_func);
return ret;
}
if (Variant::GetAccessorType(tv_func) == KindOfArray) {
CArrRef arr = Variant::GetAsArray(tv_func);
CVarRef clsname = arr.rvalAtRef(0LL);
CVarRef mthname = arr.rvalAtRef(1LL);
if (arr.size() != 2 ||
&clsname == &null_variant ||
&mthname == &null_variant) {
name = v.toString();
return false;
}
Variant::TypedValueAccessor tv_meth = mthname.getTypedAccessor();
if (!Variant::IsString(tv_meth)) {
if (name.isReferenced()) name = v.toString();
return false;
}
Variant::TypedValueAccessor tv_cls = clsname.getTypedAccessor();
if (Variant::GetAccessorType(tv_cls) == KindOfObject) {
name = Variant::GetObjectData(tv_cls)->o_getClassName();
} else if (Variant::IsString(tv_cls)) {
name = Variant::GetStringData(tv_cls);
} else {
name = v.toString();
return false;
}
name = concat3(name, "::", Variant::GetAsString(tv_meth));
return ret;
}
if (Variant::GetAccessorType(tv_func) == KindOfObject) {
ObjectData *d = Variant::GetObjectData(tv_func);
if (hhvm) {
static const StringData* sd__invoke
= StringData::GetStaticString("__invoke");
const VM::Func* invoke = d->getVMClass()->lookupMethod(sd__invoke);
if (name.isReferenced()) {
if (d->o_instanceof("closure")) {
// Hack to stop the mangled name from showing up
name = "Closure::__invoke";
} else {
name = d->o_getClassName() + "::__invoke";
}
}
return invoke != NULL;
} else {
void *extra;
if (d->t___invokeCallInfoHelper(extra)) {
name = d->o_getClassName() + "::__invoke";
return ret;
}
if (name.isReferenced()) {
name = v.toString();
}
}
}
return false;
}
