void WeakSet::sweep() { for (WeakBlock* block = m_blocks.head(); block;) { heap()->sweepNextLogicallyEmptyWeakBlock(); WeakBlock* nextBlock = block->next(); block->sweep(); if (block->isLogicallyEmptyButNotFree()) { // If this WeakBlock is logically empty, but still has Weaks pointing into it, // we can't destroy it just yet. Detach it from the WeakSet and hand ownership // to the Heap so we don't pin down the entire MarkedBlock or LargeAllocation. m_blocks.remove(block); heap()->addLogicallyEmptyWeakBlock(block); block->disconnectContainer(); } block = nextBlock; } resetAllocator(); }