void Structure::getPropertyNames(PropertyNameArray& propertyNames, EnumerationMode mode)
{
materializePropertyMapIfNecessary();
if (!m_propertyTable)
return;
if (m_propertyTable->keyCount < tinyMapThreshold) {
PropertyMapEntry* a[tinyMapThreshold];
int i = 0;
unsigned entryCount = m_propertyTable->keyCount + m_propertyTable->deletedSentinelCount;
for (unsigned k = 1; k <= entryCount; k++) {
ASSERT(m_hasNonEnumerableProperties || !(m_propertyTable->entries()[k].attributes & DontEnum));
if (m_propertyTable->entries()[k].key && (!(m_propertyTable->entries()[k].attributes & DontEnum) || (mode == IncludeDontEnumProperties))) {
PropertyMapEntry* value = &m_propertyTable->entries()[k];
int j;
for (j = i - 1; j >= 0 && a[j]->index > value->index; --j)
a[j + 1] = a[j];
a[j + 1] = value;
++i;
}
}
if (!propertyNames.size()) {
for (int k = 0; k < i; ++k)
propertyNames.addKnownUnique(a[k]->key);
} else {
for (int k = 0; k < i; ++k)
propertyNames.add(a[k]->key);
}
return;
}
// Allocate a buffer to use to sort the keys.
Vector<PropertyMapEntry*, smallMapThreshold> sortedEnumerables(m_propertyTable->keyCount);
// Get pointers to the enumerable entries in the buffer.
PropertyMapEntry** p = sortedEnumerables.data();
unsigned entryCount = m_propertyTable->keyCount + m_propertyTable->deletedSentinelCount;
for (unsigned i = 1; i <= entryCount; i++) {
if (m_propertyTable->entries()[i].key && (!(m_propertyTable->entries()[i].attributes & DontEnum) || (mode == IncludeDontEnumProperties)))
*p++ = &m_propertyTable->entries()[i];
}
size_t enumerableCount = p - sortedEnumerables.data();
// Sort the entries by index.
qsort(sortedEnumerables.data(), enumerableCount, sizeof(PropertyMapEntry*), comparePropertyMapEntryIndices);
sortedEnumerables.resize(enumerableCount);
// Put the keys of the sorted entries into the list.
if (!propertyNames.size()) {
for (size_t i = 0; i < sortedEnumerables.size(); ++i)
propertyNames.addKnownUnique(sortedEnumerables[i]->key);
} else {
for (size_t i = 0; i < sortedEnumerables.size(); ++i)
propertyNames.add(sortedEnumerables[i]->key);
}
}
void Structure::getEnumerablePropertyNames(ExecState* exec, PropertyNameArray& propertyNames, JSObject* baseObject)
{
bool shouldCache = propertyNames.shouldCache() && !(propertyNames.size() || m_isDictionary);
if (shouldCache && m_cachedPropertyNameArrayData) {
if (m_cachedPropertyNameArrayData->cachedPrototypeChain() == prototypeChain(exec)) {
propertyNames.setData(m_cachedPropertyNameArrayData);
return;
}
clearEnumerationCache();
}
getEnumerableNamesFromPropertyTable(propertyNames);
getEnumerableNamesFromClassInfoTable(exec, baseObject->classInfo(), propertyNames);
if (m_prototype.isObject()) {
propertyNames.setShouldCache(false); // No need for our prototypes to waste memory on caching, since they're not being enumerated directly.
asObject(m_prototype)->getPropertyNames(exec, propertyNames);
}
if (shouldCache) {
m_cachedPropertyNameArrayData = propertyNames.data();
m_cachedPropertyNameArrayData->setCachedPrototypeChain(prototypeChain(exec));
m_cachedPropertyNameArrayData->setCachedStructure(this);
}
}
bool _NPN_Enumerate(NPP, NPObject *o, NPIdentifier **identifier, uint32_t *count)
{
if (o->_class == NPScriptObjectClass) {
JavaScriptObject* obj = (JavaScriptObject*)o;
if (!_isSafeScript(obj))
return false;
RootObject* rootObject = obj->rootObject;
if (!rootObject || !rootObject->isValid())
return false;
ExecState* exec = rootObject->interpreter()->globalExec();
JSLock lock;
PropertyNameArray propertyNames;
obj->imp->getPropertyNames(exec, propertyNames);
unsigned size = static_cast<unsigned>(propertyNames.size());
// FIXME: This should really call NPN_MemAlloc but that's in WebKit
NPIdentifier *identifiers = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier) * size));
for (unsigned i = 0; i < size; i++)
identifiers[i] = _NPN_GetStringIdentifier(propertyNames[i].ustring().UTF8String().c_str());
*identifier = identifiers;
*count = size;
return true;
}
if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(o->_class) && o->_class->enumerate)
return o->_class->enumerate(o, identifier, count);
return false;
}
unsigned ArrayInstance::compactForSorting()
{
JSValue *undefined = jsUndefined();
unsigned o = 0;
for (unsigned i = 0; i != storageLength; ++i) {
JSValue *v = storage[i];
if (v && v != undefined) {
if (o != i)
storage[o] = v;
o++;
}
}
PropertyNameArray sparseProperties;
_prop.getSparseArrayPropertyNames(sparseProperties);
unsigned newLength = o + sparseProperties.size();
if (newLength > storageLength)
resizeStorage(newLength);
PropertyNameArrayIterator end = sparseProperties.end();
for (PropertyNameArrayIterator it = sparseProperties.begin(); it != end; ++it) {
Identifier name = *it;
storage[o] = getDirect(name);
_prop.remove(name);
o++;
}
if (newLength != storageLength)
memset(storage + o, 0, sizeof(JSValue *) * (storageLength - o));
return o;
}
void Structure::getPropertyNamesFromStructure(JSGlobalData& globalData, PropertyNameArray& propertyNames, EnumerationMode mode)
{
materializePropertyMapIfNecessary(globalData);
if (!m_propertyTable)
return;
bool knownUnique = !propertyNames.size();
PropertyTable::iterator end = m_propertyTable->end();
for (PropertyTable::iterator iter = m_propertyTable->begin(); iter != end; ++iter) {
ASSERT(m_hasNonEnumerableProperties || !(iter->attributes & DontEnum));
if (iter->key->isIdentifier() && (!(iter->attributes & DontEnum) || mode == IncludeDontEnumProperties)) {
if (knownUnique)
propertyNames.addKnownUnique(iter->key);
else
propertyNames.add(iter->key);
}
}
}
void Structure::getEnumerablePropertyNames(ExecState* exec, PropertyNameArray& propertyNames, JSObject* baseObject)
{
bool shouldCache = propertyNames.shouldCache() && !(propertyNames.size() || isDictionary());
if (shouldCache && m_cachedPropertyNameArrayData) {
if (m_cachedPropertyNameArrayData->cachedPrototypeChain() == prototypeChain(exec)) {
propertyNames.setData(m_cachedPropertyNameArrayData);
return;
}
clearEnumerationCache();
}
baseObject->getOwnPropertyNames(exec, propertyNames);
if (m_prototype.isObject()) {
propertyNames.setShouldCache(false); // No need for our prototypes to waste memory on caching, since they're not being enumerated directly.
JSObject* prototype = asObject(m_prototype);
while(1) {
if (!prototype->structure()->typeInfo().hasDefaultGetPropertyNames()) {
prototype->getPropertyNames(exec, propertyNames);
break;
}
prototype->getOwnPropertyNames(exec, propertyNames);
JSValue nextProto = prototype->prototype();
if (!nextProto.isObject())
break;
prototype = asObject(nextProto);
}
}
if (shouldCache) {
StructureChain* protoChain = prototypeChain(exec);
m_cachedPropertyNameArrayData = propertyNames.data();
if (!protoChain->isCacheable())
return;
m_cachedPropertyNameArrayData->setCachedPrototypeChain(protoChain);
m_cachedPropertyNameArrayData->setCachedStructure(this);
}
}
