本文整理汇总了C++中ObjectElements::elements方法的典型用法代码示例。如果您正苦于以下问题：C++ ObjectElements::elements方法的具体用法？C++ ObjectElements::elements怎么用？C++ ObjectElements::elements使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ObjectElements的用法示例。
在下文中一共展示了ObjectElements::elements方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: sizeof
size_t
ForkJoinNursery::copyElementsToTospace(JSObject *dst, JSObject *src, AllocKind dstKind)
{
if (src->hasEmptyElements())
return 0;
ObjectElements *srcHeader = src->getElementsHeader();
ObjectElements *dstHeader;
// TODO Bug 874151: Prefer to put element data inline if we have space.
// (Note, not a correctness issue.)
if (!isInsideFromspace(srcHeader)) {
JS_ASSERT(src->elements == dst->elements);
hugeSlots[hugeSlotsFrom].remove(reinterpret_cast<HeapSlot*>(srcHeader));
if (!isEvacuating_)
hugeSlots[hugeSlotsNew].put(reinterpret_cast<HeapSlot*>(srcHeader));
return 0;
}
size_t nslots = ObjectElements::VALUES_PER_HEADER + srcHeader->capacity;
// Unlike other objects, Arrays can have fixed elements.
if (src->is<ArrayObject>() && nslots <= GetGCKindSlots(dstKind)) {
dst->setFixedElements();
dstHeader = dst->getElementsHeader();
js_memcpy(dstHeader, srcHeader, nslots * sizeof(HeapSlot));
setElementsForwardingPointer(srcHeader, dstHeader, nslots);
return nslots * sizeof(HeapSlot);
}
JS_ASSERT(nslots >= 2);
dstHeader = reinterpret_cast<ObjectElements *>(allocateInTospace(nslots, sizeof(HeapSlot)));
if (!dstHeader)
CrashAtUnhandlableOOM("Failed to allocate elements while moving object.");
js_memcpy(dstHeader, srcHeader, nslots * sizeof(HeapSlot));
setElementsForwardingPointer(srcHeader, dstHeader, nslots);
dst->elements = dstHeader->elements();
return nslots * sizeof(HeapSlot);
}