Structure* Structure::addNewPropertyTransition(VM& vm, Structure* structure, PropertyName propertyName, unsigned attributes, PropertyOffset& offset, PutPropertySlot::Context context, DeferredStructureTransitionWatchpointFire* deferred)
{
ASSERT(!structure->isDictionary());
ASSERT(structure->isObject());
ASSERT(!Structure::addPropertyTransitionToExistingStructure(structure, propertyName, attributes, offset));
int maxTransitionLength;
if (context == PutPropertySlot::PutById)
maxTransitionLength = s_maxTransitionLengthForNonEvalPutById;
else
maxTransitionLength = s_maxTransitionLength;
if (structure->transitionCount() > maxTransitionLength) {
Structure* transition = toCacheableDictionaryTransition(vm, structure, deferred);
ASSERT(structure != transition);
offset = transition->add(vm, propertyName, attributes);
return transition;
}
Structure* transition = create(vm, structure, deferred);
transition->m_cachedPrototypeChain.setMayBeNull(vm, transition, structure->m_cachedPrototypeChain.get());
transition->m_nameInPrevious = propertyName.uid();
transition->setAttributesInPrevious(attributes);
transition->propertyTable().set(vm, transition, structure->takePropertyTableOrCloneIfPinned(vm));
transition->m_offset = structure->m_offset;
transition->m_inferredTypeTable.setMayBeNull(vm, transition, structure->m_inferredTypeTable.get());
offset = transition->add(vm, propertyName, attributes);
checkOffset(transition->m_offset, transition->inlineCapacity());
{
ConcurrentJITLocker locker(structure->m_lock);
structure->m_transitionTable.add(vm, transition);
}
transition->checkOffsetConsistency();
structure->checkOffsetConsistency();
return transition;
}
long DBController::checkStructure(BSONObj* obj) {
Structure* structure = new Structure();
for (std::map<std::string, BSONContent* >::const_iterator i = obj->begin(); i != obj->end(); i++) {
structure->add(i->first);
}
StructureCache* cache = CacheManager::structuresCache();
long strId = structure->crc();
if (!cache->containsKey(strId)) {
cache->add(strId, structure);
} else {
delete(structure);
}
return strId;
}