OLD | NEW |
1 // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2016, 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 import 'package:expect/expect.dart'; | 5 import 'package:expect/expect.dart'; |
6 | 6 |
7 // Test that the context depth is correct in the presence of control flow, | 7 // Test that the context depth is correct in the presence of control flow, |
8 // specifically branching and joining in the presence of break. The | 8 // specifically branching and joining in the presence of break. The |
9 // implementation uses the context depth after the else block of an if/then/else | 9 // implementation uses the context depth after the else block of an if/then/else |
10 // as the context depth at the join point. This test has an extra context | 10 // as the context depth at the join point. This test has an extra context |
11 // allocated in the (untaken) else branch so it tests that compiling the | 11 // allocated in the (untaken) else branch so it tests that compiling the |
12 // (untaken) break properly tracks the context depth. | 12 // (untaken) break properly tracks the context depth. |
13 | 13 |
14 test(list) { | 14 test(list) { |
15 // The loops force creation of a new context, otherwise context allocated | 15 // The loops force creation of a new context, otherwise context allocated |
16 // variables might be hoisted to an outer context. | 16 // variables might be hoisted to an outer context. |
17 do { | 17 do { |
18 if (list.length > 1) { | 18 if (list.length > 1) { |
19 do { | 19 do { |
20 var sum = 0; | 20 var sum = 0; |
21 addem() { | 21 addem() { |
22 for (var x in list) sum += x; | 22 for (var x in list) sum += x; |
23 } | 23 } |
| 24 |
24 addem(); | 25 addem(); |
25 Expect.isTrue(sum == 15); | 26 Expect.isTrue(sum == 15); |
26 L: if (sum != 15) { | 27 L: |
| 28 if (sum != 15) { |
27 // Unreachable. | 29 // Unreachable. |
28 do { | 30 do { |
29 var product = 1; | 31 var product = 1; |
30 multiplyem() { | 32 multiplyem() { |
31 for (var x in list) product *= x; | 33 for (var x in list) product *= x; |
32 } | 34 } |
| 35 |
33 multiplyem(); | 36 multiplyem(); |
34 Expect.isTrue(false); | 37 Expect.isTrue(false); |
35 break L; | 38 break L; |
36 } while (false); | 39 } while (false); |
37 } | 40 } |
38 } while (false); | 41 } while (false); |
39 } | 42 } |
40 } while (false); | 43 } while (false); |
41 Expect.isTrue(list.length == 5); | 44 Expect.isTrue(list.length == 5); |
42 } | 45 } |
43 | 46 |
44 | |
45 main() { | 47 main() { |
46 test([1, 2, 3, 4, 5]); | 48 test([1, 2, 3, 4, 5]); |
47 } | 49 } |
OLD | NEW |