示例#1
0
void JSString::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
    JSString* thisObject = jsCast<JSString*>(cell);
    Base::visitChildren(thisObject, visitor);
    
    MARK_LOG_MESSAGE1("[%u]: ", thisObject->length());

#if ENABLE(OBJECT_MARK_LOGGING)
    if (!thisObject->isRope()) {
        WTF::StringImpl* ourImpl = thisObject->m_value.impl();
        if (ourImpl->is8Bit())
            MARK_LOG_MESSAGE1("[8 %p]", ourImpl->characters8());
        else
            MARK_LOG_MESSAGE1("[16 %p]", ourImpl->characters16());
    } else
        MARK_LOG_MESSAGE0("[rope]: ");
#endif

    if (thisObject->isRope())
        static_cast<JSRopeString*>(thisObject)->visitFibers(visitor);
    else {
        StringImpl* impl = thisObject->m_value.impl();
        ASSERT(impl);
        visitor.reportExtraMemoryUsage(impl->costDuringGC());
    }
}
示例#2
0
void WeakMapData::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
    Base::visitChildren(cell, visitor);
    WeakMapData* thisObj = jsCast<WeakMapData*>(cell);
    visitor.addUnconditionalFinalizer(&thisObj->m_deadKeyCleaner);
    visitor.addWeakReferenceHarvester(&thisObj->m_deadKeyCleaner);

    // Rough approximation of the external storage needed for the hashtable.
    // This isn't exact, but it is close enough, and proportional to the actual
    // external mermory usage.
    visitor.reportExtraMemoryUsage(thisObj->m_map.capacity() * (sizeof(JSObject*) + sizeof(WriteBarrier<Unknown>)));
}
示例#3
0
void JSString::visitChildren(JSCell* cell, SlotVisitor& visitor)
{
    JSString* thisObject = jsCast<JSString*>(cell);
    Base::visitChildren(thisObject, visitor);
    
    if (thisObject->isRope())
        static_cast<JSRopeString*>(thisObject)->visitFibers(visitor);
    else {
        StringImpl* impl = thisObject->m_value.impl();
        ASSERT(impl);
        visitor.reportExtraMemoryUsage(thisObject, impl->costDuringGC());
    }
}