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1 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file | |
2 // for details. All rights reserved. Use of this source code is governed by a | |
3 // BSD-style license that can be found in the LICENSE file. | |
4 | |
5 /*@testedFeatures=inference*/ | |
6 library test; | |
7 | |
8 import 'dart:async'; | |
9 | |
10 class MyFuture<T> implements Future<T> { | |
11 MyFuture() {} | |
12 MyFuture.value(x) {} | |
13 dynamic noSuchMethod(invocation); | |
14 MyFuture<S> then<S>(dynamic f(T x), {Function onError}) => null; | |
15 } | |
16 | |
17 Future<int> g1(bool x) async { | |
18 return /*info:DOWN_CAST_COMPOSITE*/ x | |
19 ? 42 | |
20 : /*@typeArgs=int*/ new Future.value(42); | |
21 } | |
22 | |
23 Future<int> g2(bool x) async => | |
24 /*info:DOWN_CAST_COMPOSITE*/ x | |
25 ? 42 | |
26 : /*@typeArgs=int*/ new Future.value(42); | |
27 Future<int> g3(bool x) async { | |
28 var /*@type=Object*/ y = x ? 42 : /*@typeArgs=dynamic*/ new Future.value(42); | |
29 return /*info:DOWN_CAST_COMPOSITE*/ /*@promotedType=none*/ y; | |
30 } | |
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