nsresult
SVGNumberListSMILType::Assign(nsSMILValue& aDest,
const nsSMILValue& aSrc) const
{
NS_PRECONDITION(aDest.mType == aSrc.mType, "Incompatible SMIL types");
NS_PRECONDITION(aDest.mType == this, "Unexpected SMIL value");
const SVGNumberListAndInfo* src =
static_cast<const SVGNumberListAndInfo*>(aSrc.mU.mPtr);
SVGNumberListAndInfo* dest =
static_cast<SVGNumberListAndInfo*>(aDest.mU.mPtr);
return dest->CopyFrom(*src);
}
nsSMILValue
SVGAnimatedNumberList::SMILAnimatedNumberList::GetBaseValue() const
{
// To benefit from Return Value Optimization and avoid copy constructor calls
// due to our use of return-by-value, we must return the exact same object
// from ALL return points. This function must only return THIS variable:
nsSMILValue val;
nsSMILValue tmp(&SVGNumberListSMILType::sSingleton);
SVGNumberListAndInfo *nlai = static_cast<SVGNumberListAndInfo*>(tmp.mU.mPtr);
nsresult rv = nlai->CopyFrom(mVal->mBaseVal);
if (NS_SUCCEEDED(rv)) {
nlai->SetInfo(mElement);
Swap(val, tmp);
}
return val;
}
