void JSQuarantinedObjectWrapper::transferExceptionToExecState(ExecState* exec) const
{
ASSERT(exec != unwrappedExecState());
if (!unwrappedExecState()->hadException())
return;
exec->setException(wrapOutgoingValue(unwrappedExecState(), unwrappedExecState()->exception()));
unwrappedExecState()->clearException();
}
JSValue* JSInspectedObjectWrapper::prepareIncomingValue(ExecState*, JSValue* value) const
{
// The Inspector is only allowed to pass primitive values and wrapped objects to objects from the inspected page.
if (!value->isObject())
return value;
JSQuarantinedObjectWrapper* wrapper = asWrapper(value);
ASSERT_WITH_MESSAGE(wrapper, "Objects passed to JSInspectedObjectWrapper must be wrapped");
if (!wrapper)
return jsUndefined();
if (wrapper->allowsUnwrappedAccessFrom(unwrappedExecState())) {
ASSERT_WITH_MESSAGE(wrapper->inherits(&s_info), "A wrapper contains an object from the inspected page but is not a JSInspectedObjectWrapper");
if (!wrapper->inherits(&s_info))
return jsUndefined();
// Return the unwrapped object so the inspected page never sees one of its own objects in wrapped form.
return wrapper->unwrappedObject();
}
ASSERT_WITH_MESSAGE(wrapper->inherits(&JSInspectorCallbackWrapper::s_info), "A wrapper that was not from the inspected page and is not an Inspector callback was passed to a JSInspectedObjectWrapper");
if (!wrapper->inherits(&JSInspectorCallbackWrapper::s_info))
return jsUndefined();
return wrapper;
}
void JSQuarantinedObjectWrapper::getPropertyNames(ExecState* exec, PropertyNameArray& array)
{
if (!allowsGetPropertyNames())
return;
m_unwrappedObject->getPropertyNames(unwrappedExecState(), array);
}
void JSQuarantinedObjectWrapper::put(ExecState* exec, unsigned identifier, JSValue* value)
{
if (!allowsSetProperty())
return;
m_unwrappedObject->put(unwrappedExecState(), identifier, prepareIncomingValue(exec, value));
transferExceptionToExecState(exec);
}
bool JSQuarantinedObjectWrapper::getOwnPropertySlot(ExecState* exec, unsigned identifier, PropertySlot& slot)
{
if (!allowsGetProperty()) {
slot.setUndefined();
return true;
}
PropertySlot unwrappedSlot(m_unwrappedObject);
bool result = m_unwrappedObject->getOwnPropertySlot(unwrappedExecState(), identifier, unwrappedSlot);
if (result) {
JSValue* unwrappedValue = unwrappedSlot.getValue(unwrappedExecState(), identifier);
slot.setCustom(static_cast<JSObject*>(wrapOutgoingValue(unwrappedExecState(), unwrappedValue)), cachedValueGetter);
}
transferExceptionToExecState(exec);
return result;
}
bool JSQuarantinedObjectWrapper::hasInstance(ExecState* exec, JSValue* value)
{
if (!allowsHasInstance())
return false;
bool result = m_unwrappedObject->hasInstance(unwrappedExecState(), prepareIncomingValue(exec, value));
transferExceptionToExecState(exec);
return result;
}
bool JSQuarantinedObjectWrapper::deleteProperty(ExecState* exec, unsigned identifier)
{
if (!allowsDeleteProperty())
return false;
bool result = m_unwrappedObject->deleteProperty(unwrappedExecState(), identifier);
transferExceptionToExecState(exec);
return result;
}
