/* nsIDOMNode nextSibling (); */ NS_IMETHODIMP nsTreeWalker::NextSibling(nsIDOMNode **_retval) { return NextSiblingInternal(PR_FALSE, _retval); }
already_AddRefed<nsINode> TreeWalker::NextSibling(ErrorResult& aResult) { return NextSiblingInternal(false, aResult); }
/* nsIDOMNode previousSibling (); */ NS_IMETHODIMP nsTreeWalker::PreviousSibling(nsIDOMNode **_retval) { return NextSiblingInternal(PR_TRUE, _retval); }
already_AddRefed<nsINode> TreeWalker::PreviousSibling(ErrorResult& aResult) { return NextSiblingInternal(true, aResult); }