runtime/observatory/tests/observatory_ui/mocks/repositories/retained_size.dart

// Copyright (c) 2016, 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

part of mocks;

typedef Future<M.Guarded<M.Instance>> RetainedSizeRepositoryMockGetter(
    M.IsolateRef i, String id);

class RetainedSizeRepositoryMock implements M.RetainedSizeRepository {
  final RetainedSizeRepositoryMockGetter _getter;

  Future<M.Guarded<M.Instance>> get(M.IsolateRef i, String id) {
    if (_getter != null) {
      return _getter(i, id);
    }
    return new Future.value(
        new GuardedMock<M.Instance>.fromSentinel(new SentinelMock()));
  }

  RetainedSizeRepositoryMock({RetainedSizeRepositoryMockGetter getter})
      : _getter = getter;
}