Method mutableCopy

Fleece/Tree/MutableNode.hh:346–353

        }

        static MutableInterior* mutableCopy(const Interior *iNode, unsigned extraCapacity =0) {
            auto childCount = iNode->childCount();
            auto node = newNode(childCount + extraCapacity);
            node->_bitmap = asBitmap(iNode->bitmap());
            for (unsigned i = 0; i < childCount; ++i)
                node->_children[i] = NodeRef(iNode->childAtIndex(i));
            return node;
        }

        static MutableInterior* promoteLeaf(NodeRef& childLeaf, unsigned shift) {
            unsigned level = shift / kBitShift;