@Override
public BXElem getDocumentElement() {
final BXNList list = getChildNodes();
for (int l = 0; l < list.getLength(); ++l) {
final BXNode n = list.item(l);
if (n.getNodeType() == Node.ELEMENT_NODE) return (BXElem) n;
}
throw Util.notExpected();
}
@Override
public Iter iter(final QueryContext qc) throws QueryException {
final Value seq = qc.value(ts);
for (final TypeCase tc : cases) {
final Iter iter = tc.iter(qc, seq);
if (iter != null) return iter;
}
// will never happen
throw Util.notExpected();
}
@Override
public Test intersect(final Test other) {
if (other instanceof NodeTest) {
final NodeTest o = (NodeTest) other;
if (type != null && o.type != null && type != o.type) return null;
final NodeType nt = type != null ? type : o.type;
if (name != null && o.name != null && !name.eq(o.name)) return null;
final QNm n = name != null ? name : o.name;
final boolean both = ext != null && o.ext != null;
final Type e = ext == null ? o.ext : o.ext == null ? ext : ext.intersect(o.ext);
return both && e == null ? null : new NodeTest(nt, n, e, strip || o.strip);
}
if (other instanceof KindTest) {
return type.instanceOf(other.type) ? this : null;
}
if (other instanceof NameTest) {
throw Util.notExpected(other);
}
return null;
}
@Override
public Test intersect(final Test other) {
throw Util.notExpected(this);
}