Index: lib/src/result_future.dart |
diff --git a/lib/src/result_future.dart b/lib/src/result_future.dart |
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+// Copyright (c) 2015, 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. |
+ |
+library async.result_future; |
+ |
+import 'dart:async'; |
+ |
+import '../result.dart'; |
+import 'delegate/future.dart'; |
+ |
+/// A [Future] wrapper that provides synchronous access to the result of the |
+/// wrapped [Future] once it's completed. |
+class ResultFuture<T> extends DelegatingFuture<T> { |
+ /// The wrapped [Future]. |
+ Future<T> _future; |
+ |
+ /// Whether the future has fired and [result] is available. |
+ bool get hasResult => result != null; |
Lasse Reichstein Nielsen
2015/07/09 11:18:20
I prefer isComplete - that's the direct question,
nweiz
2015/07/13 20:05:52
Done.
|
+ |
+ /// The result of the wrapped [Future], if it's completed. |
+ /// |
+ /// If it hasn't completed yet, this will be `null`. |
+ Result<T> get result => _result; |
+ Result<T> _result; |
+ |
+ factory ResultFuture(Future<T> future) { |
+ var resultFuture; |
+ resultFuture = new ResultFuture._(Result.capture(future).then((result) { |
+ resultFuture._result = result; |
+ return result.asFuture; |
+ })); |
+ return resultFuture; |
+ } |
+ |
+ ResultFuture._(Future<T> future) |
+ : super(future); |
+} |