@Override
public @Nullable abstract_value lookup(principal_type key) {
if (key instanceof master_type) {
return params.get((master_type) key);
} else {
return null;
}
}
@Override
public string to_string() {
StringBuilder s = new StringBuilder();
boolean first = true;
s.append('[');
if (!params.is_empty()) {
readonly_list<dictionary.entry<master_type, abstract_value>> named_list = params.elements();
for (int i = 0; i < named_list.size(); ++i) {
if (first) {
first = false;
} else {
s.append(", ");
}
s.append(utilities.s(named_list.get(i).key().short_name().to_string()));
s.append(": ");
s.append(utilities.s(named_list.get(i).value().to_string()));
}
}
s.append(']');
return new base_string(s.toString());
}