Index: lib/src/typed/future.dart |
diff --git a/lib/src/typed/future.dart b/lib/src/typed/future.dart |
new file mode 100644 |
index 0000000000000000000000000000000000000000..a269593dff651fe11c4e21179d01edb4d9b3d632 |
--- /dev/null |
+++ b/lib/src/typed/future.dart |
@@ -0,0 +1,25 @@ |
+// 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. |
+ |
+import 'dart:async'; |
+ |
+class TypeSafeFuture<T> implements Future<T> { |
+ final Future _future; |
+ |
+ TypeSafeFuture(this._future); |
+ |
+ Stream<T> asStream() => _future.then((value) => value as T).asStream(); |
+ |
+ Future catchError(Function onError, {bool test(Object error)}) => |
+ _future.catchError(onError, test: test); |
+ |
+ Future/*<S>*/ then/*<S>*/(/*=S*/ onValue(T value), {Function onError}) => |
+ _future.then((value) => onValue(value as T), onError: onError); |
+ |
+ Future<T> whenComplete(action()) => |
+ new TypeSafeFuture<T>(_future.whenComplete(action)); |
+ |
+ Future<T> timeout(Duration timeLimit, {onTimeout()}) => |
+ new TypeSafeFuture<T>(_future.timeout(timeLimit, onTimeout: onTimeout)); |
+} |