Structure* Structure::flattenDictionaryStructure(JSGlobalData& globalData, JSObject* object)
{
ASSERT(isDictionary());
if (isUncacheableDictionary()) {
ASSERT(m_propertyTable);
size_t propertyCount = m_propertyTable->size();
Vector<JSValue> values(propertyCount);
unsigned i = 0;
PropertyOffset firstOffset = firstPropertyOffsetFor(m_typeInfo.type());
PropertyTable::iterator end = m_propertyTable->end();
for (PropertyTable::iterator iter = m_propertyTable->begin(); iter != end; ++iter, ++i) {
values[i] = object->getDirectOffset(iter->offset);
// Update property table to have the new property offsets
iter->offset = i + firstOffset;
}
// Copy the original property values into their final locations
for (unsigned i = 0; i < propertyCount; i++)
object->putDirectOffset(globalData, firstOffset + i, values[i]);
m_propertyTable->clearDeletedOffsets();
}
m_dictionaryKind = NoneDictionaryKind;
return this;
}
Structure* Structure::flattenDictionaryStructure(JSGlobalData& globalData, JSObject* object)
{
ASSERT(isDictionary());
if (isUncacheableDictionary()) {
ASSERT(m_propertyTable);
size_t propertyCount = m_propertyTable->size();
// Holds our values compacted by insertion order.
Vector<JSValue> values(propertyCount);
// Copies out our values from their hashed locations, compacting property table offsets as we go.
unsigned i = 0;
PropertyTable::iterator end = m_propertyTable->end();
for (PropertyTable::iterator iter = m_propertyTable->begin(); iter != end; ++iter, ++i) {
values[i] = object->getDirectOffset(iter->offset);
iter->offset = propertyOffsetFor(i, m_inlineCapacity);
}
// Copies in our values to their compacted locations.
for (unsigned i = 0; i < propertyCount; i++)
object->putDirectOffset(globalData, propertyOffsetFor(i, m_inlineCapacity), values[i]);
m_propertyTable->clearDeletedOffsets();
}
m_dictionaryKind = NoneDictionaryKind;
return this;
}
PropertyOffset Structure::removePropertyWithoutTransition(JSGlobalData& globalData, PropertyName propertyName)
{
ASSERT(isUncacheableDictionary());
ASSERT(!m_enumerationCache);
materializePropertyMapIfNecessaryForPinning(globalData);
pin();
return remove(propertyName);
}
size_t Structure::removePropertyWithoutTransition(JSGlobalData& globalData, const Identifier& propertyName)
{
ASSERT(isUncacheableDictionary());
ASSERT(!m_enumerationCache);
materializePropertyMapIfNecessaryForPinning(globalData);
pin();
size_t offset = remove(propertyName);
return offset;
}
