bool StructureSet::merge(const StructureSet& other)
{
if (other.isThin()) {
if (other.singleStructure())
return add(other.singleStructure());
return false;
}
OutOfLineList* list = other.structureList();
if (list->m_length >= 2) {
if (isThin()) {
OutOfLineList* myNewList = OutOfLineList::create(
list->m_length + !!singleStructure());
if (singleStructure()) {
myNewList->m_length = 1;
myNewList->list()[0] = singleStructure();
}
set(myNewList);
}
bool changed = false;
for (unsigned i = 0; i < list->m_length; ++i)
changed |= addOutOfLine(list->list()[i]);
return changed;
}
ASSERT(list->m_length);
return add(list->list()[0]);
}
void StructureSet::copyFromOutOfLine(const StructureSet& other)
{
ASSERT(!other.isThin() && other.m_pointer != reservedValue);
OutOfLineList* otherList = other.structureList();
OutOfLineList* myList = OutOfLineList::create(otherList->m_length);
myList->m_length = otherList->m_length;
for (unsigned i = otherList->m_length; i--;)
myList->list()[i] = otherList->list()[i];
set(myList);
}
