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| 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 | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 // Test switch statement using labels. | |
| 5 | |
| 6 class Switcher { | |
| 7 | |
| 8 Switcher() { } | |
| 9 | |
| 10 say1 (sound) { | |
| 11 var x = 0; | |
| 12 switch (sound) { | |
| 13 MOO: | |
| 14 case "moo": | |
| 15 x = 100; | |
| 16 break; | |
| 17 case "woof": | |
| 18 x = 200; | |
| 19 continue MOO; | |
| 20 default: | |
| 21 x = 300; | |
| 22 break; | |
| 23 } | |
| 24 return x; | |
| 25 } | |
| 26 | |
| 27 say2 (sound) { | |
| 28 var x = 0; | |
| 29 switch (sound) { | |
| 30 WOOF: | |
| 31 case "woof": | |
| 32 x = 200; | |
| 33 break; | |
| 34 case "moo": | |
| 35 x = 100; | |
| 36 continue WOOF; | |
| 37 default: | |
| 38 x = 300; | |
| 39 break; | |
| 40 } | |
| 41 return x; | |
| 42 } | |
| 43 | |
| 44 // forward label to outer switch | |
| 45 say3 (animal, sound) { | |
| 46 var x = 0; | |
| 47 switch (animal) { | |
| 48 case "cow": | |
| 49 switch (sound) { | |
| 50 case "moo": | |
| 51 x = 100; break; | |
| 52 case "muh": | |
| 53 x = 200; break; | |
| 54 default: | |
| 55 continue NIX_UNDERSTAND; | |
| 56 } | |
| 57 break; | |
| 58 case "dog": | |
| 59 if (sound == "woof") { | |
| 60 x = 300; | |
| 61 } else { | |
| 62 continue NIX_UNDERSTAND; | |
| 63 } | |
| 64 break; | |
| 65 NIX_UNDERSTAND: | |
| 66 case "unicorn": | |
| 67 x = 400; | |
| 68 break; | |
| 69 default: | |
| 70 x = 500; | |
| 71 break; | |
| 72 } | |
| 73 return x; | |
| 74 } | |
| 75 } | |
| 76 | |
| 77 class SwitchLabelTest { | |
| 78 static testMain() { | |
| 79 Switcher s = new Switcher(); | |
| 80 Expect.equals(100, s.say1("moo")); | |
| 81 Expect.equals(100, s.say1("woof")); | |
| 82 Expect.equals(300, s.say1("cockadoodledoo")); | |
| 83 | |
| 84 Expect.equals(200, s.say2("moo")); | |
| 85 Expect.equals(200, s.say2("woof")); | |
| 86 Expect.equals(300, s.say2("")); // Dead unicorn says nothing. | |
| 87 | |
| 88 Expect.equals(100, s.say3("cow", "moo")); | |
| 89 Expect.equals(200, s.say3("cow", "muh")); | |
| 90 Expect.equals(400, s.say3("cow", "boeh")); // Don't ask. | |
| 91 Expect.equals(300, s.say3("dog", "woof")); | |
| 92 Expect.equals(400, s.say3("dog", "boj")); // Ĉu vi parolas Esperanton? | |
| 93 Expect.equals(400, s.say3("unicorn", "")); // Still dead. | |
| 94 Expect.equals(500, s.say3("angry bird", "whoooo")); | |
| 95 } | |
| 96 } | |
| 97 | |
| 98 main() { | |
| 99 SwitchLabelTest.testMain(); | |
| 100 } | |
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