| // Copyright (c) 2011, 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. |
| |
| /// @assertion Stream<T> stream |
| /// The stream that this controller is controlling. |
| /// @description Checks that property stream implements Stream interface |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:async"; |
| import "../Stream/allTests_A01.lib.dart"; |
| |
| Stream<T> create<T>(Iterable<T> data, {bool isError(T element)?}) { |
| StreamController<T>? sc; |
| sc = new StreamController<T>( |
| sync: true, |
| onListen: () { |
| new Future(() { |
| for (T e in data) { |
| if (sc!.isClosed){ |
| break; |
| } |
| if (isError != null && isError(e)) { |
| sc.addError(e as Object); |
| } else { |
| sc.add(e); |
| } |
| } |
| }).then((_) => sc?.close()); |
| }, |
| onCancel: () { |
| sc?.close(); |
| } |
| ); |
| return sc.stream; |
| } |
| |
| main() { |
| test(create); |
| } |