| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| // for details. All rights reserved. Use of this source code is governed by a | |
| // BSD-style license that can be found in the LICENSE file. | |
| /// A pair of values. | |
| class Pair<E, F> { | |
| E first; | |
| F last; | |
| Pair(this.first, this.last); | |
| } | |
| /// Returns a [Comparator] that asserts that its first argument is comparable. | |
| Comparator/*<T>*/ defaultCompare/*<T>*/() => | |
| (value1, value2) => (value1 as Comparable).compareTo(value2); |