public JSType getDeclaredProp(QualifiedName qname) {
if (isUnknown()) {
return UNKNOWN;
}
Preconditions.checkState(objs != null, "Cannot get declared prop %s of type %s", qname, this);
JSType ptype = BOTTOM;
for (ObjectType o : objs) {
JSType declType = o.getDeclaredProp(qname);
if (declType != null) {
ptype = join(ptype, declType);
}
}
return ptype.isBottom() ? null : ptype;
}