inline bool
ForOfIterator::nextFromOptimizedArray(MutableHandleValue vp, bool* done)
{
MOZ_ASSERT(index != NOT_ARRAY);
if (!CheckForInterrupt(cx_))
return false;
ArrayObject* arr = &iterator->as<ArrayObject>();
if (index >= arr->length()) {
vp.setUndefined();
*done = true;
return true;
}
*done = false;
// Try to get array element via direct access.
if (index < arr->getDenseInitializedLength()) {
vp.set(arr->getDenseElement(index));
if (!vp.isMagic(JS_ELEMENTS_HOLE)) {
++index;
return true;
}
}
return GetElement(cx_, iterator, iterator, index++, vp);
}
