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1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 // | 4 // |
5 // VMOptions=--optimization_counter_threshold=5 | 5 // VMOptions=--optimization_counter_threshold=5 |
6 // | 6 // |
7 // Basic null-aware operator test that invokes the optimizing compiler. | 7 // Basic null-aware operator test that invokes the optimizing compiler. |
8 | 8 |
9 import "package:expect/expect.dart"; | 9 import "package:expect/expect.dart"; |
10 | 10 |
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61 var x = 5 ?? bomb(); | 61 var x = 5 ?? bomb(); |
62 } | 62 } |
63 | 63 |
64 // Check that instructions without result do not crash. | 64 // Check that instructions without result do not crash. |
65 test2() { | 65 test2() { |
66 var c; | 66 var c; |
67 c?.v; | 67 c?.v; |
68 c?.m(bomb()); | 68 c?.m(bomb()); |
69 } | 69 } |
70 | 70 |
71 class Bar { | |
72 String s; | |
73 } | |
74 | |
75 class Foo { | |
76 Bar _bar; | |
77 String str; | |
78 | |
79 Foo(this._bar) : str = _bar?.s; | |
80 } | |
81 | |
82 main() { | 71 main() { |
83 for (int i = 0; i < 10; i++) { | 72 for (int i = 0; i < 10; i++) { |
84 test(); | 73 test(); |
85 test2(); | 74 test2(); |
86 } | 75 } |
87 | |
88 Expect.equals(null, new Foo(new Bar()).str); | |
89 } | 76 } |
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