public Object get(Object key) {
String symbol = ((String) key).intern();
NamedValue value = pkg.lookup(symbol);
if (value != null) {
return value.get();
}
return null;
}
public Object put(Object key, Object value) {
String symbol = ((String) key).intern();
NamedValue binding = pkg.lookup(symbol);
if (binding != null) {
Object old = binding.get();
binding.set(value);
return old;
} else {
pkg.set(symbol, value);
return null;
}
}