Context ctx = exctx.getContext(parentState);
Evaluator eval = exctx.getEvaluator();
ctx.setLocal(getNamespacesKey(), getNamespaces());
// "location" gets preference over "name"
if (location != null) {
Node oldNode = eval.evalLocation(ctx, location);
if (oldNode != null) {
//// rvalue may be ...
// a Node, if so, import it at location
Node newNode;
try {