Method removeDeclaration

kdevplatform/language/duchain/persistentsymboltable.cpp:329–378

}

void PersistentSymbolTable::removeDeclaration(const IndexedQualifiedIdentifier& id,
                                              const IndexedDeclaration& declaration)
{
    ENSURE_CHAIN_WRITE_LOCKED

    PersistentSymbolTableItem item;
    item.id = id;

    LockedItemRepository::write<PersistentSymbolTable>([&item, &declaration](PersistentSymbolTableRepo& repo) {
        Q_ASSERT_X(repo.ongoingIterations == 0, Q_FUNC_INFO, "don't call removeDeclaration directly from a visitor");

        repo.declarationsCache.remove(item.id);

        uint index = repo.findIndex(item);

        if (index) {
            // Check whether the item is already in the mapped list, else copy the list into the new created item
            const PersistentSymbolTableItem* oldItem = repo.itemFromIndex(index);

            EmbeddedTreeAlgorithms<IndexedDeclaration, IndexedDeclarationHandler> alg(
                oldItem->declarations(), oldItem->declarationsSize(), oldItem->centralFreeItem);

            if (alg.indexOf(declaration) == -1)
                return;

            DynamicItem<PersistentSymbolTableItem, true> editableItem = repo.dynamicItemFromIndex(index);

            EmbeddedTreeRemoveItem<IndexedDeclaration, IndexedDeclarationHandler> remove(
                const_cast<IndexedDeclaration*>(editableItem->declarations()), editableItem->declarationsSize(),
                editableItem->centralFreeItem, declaration);

            uint newSize = remove.newItemCount();
            if (newSize != editableItem->declarationsSize()) {
                // We need to resize. Update and fill the new item, and delete the old item.
                item.declarationsList().resize(newSize);
                remove.transferData(item.declarationsList().data(), newSize, &item.centralFreeItem);

                repo.deleteItem(index);
                Q_ASSERT(!repo.findIndex(item));
            } else {
                // We're fine, the item could be added to the existing list
                return;
            }
        }

        // This inserts the changed item
        if (item.declarationsSize())
            repo.index(item);
    });
}

void PersistentSymbolTable::visitDeclarations(const IndexedQualifiedIdentifier& id,
                                              const DeclarationVisitor& visitor) const