E lookup(Object object) {
if (!_validKey(object)) return null;
int comp = _splay(object);
if (comp != 0) return null;
return _root.key;
}
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-collection/SplayTreeSet/lookup.html