| // Copyright (c) 2018, 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. |
| |
| // @dart = 2.9 |
| |
| // Verifies that VM is able to handle certain cases of unreachable code. |
| |
| // VMOptions=--no_background_compilation --optimization_counter_threshold=10 |
| |
| import "package:expect/expect.dart"; |
| |
| class A { |
| dynamic next; |
| } |
| |
| test1(A arg1, bool arg2, bool arg3) { |
| assert(arg1.next == (arg2 ?? arg3)); |
| } |
| |
| test2(A arg1, bool arg2, bool arg3) { |
| print(((throw 'Error') as dynamic).next == (arg2 ?? arg3)); |
| } |
| |
| void doTests() { |
| test1(new A(), null, null); |
| Expect.throws(() { |
| test2(new A(), null, null); |
| }); |
| } |
| |
| void main() { |
| for (int i = 0; i < 20; i++) { |
| doTests(); |
| } |
| } |