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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 // Check that FallThroughError is thrown if switch clause does not terminate. | 4 // Check that FallThroughError is thrown if switch clause does not terminate. |
5 | 5 |
6 class SwitchFallthruTest { | 6 class SwitchFallthruTest { |
7 static String test(int n) { | 7 static String test(int n) { |
8 String result = "foo"; | 8 String result = "foo"; |
9 switch (n) { | 9 switch (n) { |
10 case 0: | 10 case 0: |
11 result = "zero"; | 11 result = "zero"; |
12 break; | 12 break; |
13 case 1: | 13 case 1: |
14 result = "one"; | 14 result = "one"; |
15 // fall-through, throw implicit FallThroughError here. | 15 // fall-through, throw implicit FallThroughError here. |
16 case 9: | 16 case 9: |
17 result = "nine"; | 17 result = "nine"; |
18 // No implicit FallThroughError at end of switch statement. | 18 // No implicit FallThroughError at end of switch statement. |
19 } | 19 } |
20 return result; | 20 return result; |
21 } | 21 } |
22 | 22 |
23 static testMain() { | 23 static testMain() { |
24 Expect.equals("zero", test(0)); | 24 Expect.equals("zero", test(0)); |
25 bool fallthroughCaught = false; | 25 bool fallthroughCaught = false; |
26 try { | 26 try { |
27 test(1); | 27 test(1); |
28 } catch (FallThroughError e) { | 28 } on FallThroughError catch (e) { |
29 fallthroughCaught = true; | 29 fallthroughCaught = true; |
30 } | 30 } |
31 Expect.equals(true, fallthroughCaught); | 31 Expect.equals(true, fallthroughCaught); |
32 Expect.equals("nine", test(9)); | 32 Expect.equals("nine", test(9)); |
33 Expect.equals("foo", test(99)); | 33 Expect.equals("foo", test(99)); |
34 } | 34 } |
35 } | 35 } |
36 | 36 |
37 main() { | 37 main() { |
38 SwitchFallthruTest.testMain(); | 38 SwitchFallthruTest.testMain(); |
39 } | 39 } |
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