sdk/lib/coreimpl/expando.dart

// Copyright (c) 2012, 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.

class ExpandoImplementation<T> implements Expando<T> {
  final String name;
  const ExpandoImplementation([String this.name]);
  String toString() => "Expando:$name";
  external T operator [](Object object);
  external void operator []=(Object object, T value);
}