C++ (Cpp) SlotVisitor::markingVersionの例

コード例 #1

ファイル: WeakBlock.cpp プロジェクト: mjparme/openjdk-jfx

void WeakBlock::specializedVisit(ContainerType& container, SlotVisitor& visitor)
{
    HeapVersion markingVersion = visitor.markingVersion();

    size_t count = weakImplCount();
    for (size_t i = 0; i < count; ++i) {
        WeakImpl* weakImpl = &weakImpls()[i];
        if (weakImpl->state() != WeakImpl::Live)
            continue;

        WeakHandleOwner* weakHandleOwner = weakImpl->weakHandleOwner();
        if (!weakHandleOwner)
            continue;

        JSValue jsValue = weakImpl->jsValue();
        if (container.isMarkedConcurrently(markingVersion, jsValue.asCell()))
            continue;

        if (!weakHandleOwner->isReachableFromOpaqueRoots(Handle<Unknown>::wrapSlot(&const_cast<JSValue&>(jsValue)), weakImpl->context(), visitor))
            continue;

        visitor.appendUnbarriered(jsValue);
    }
}