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| 1 // Copyright (c) 2012, 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 | |
| 5 // A break label must be declared where it's used. | |
| 6 undeclaredBreakLabel1() { | |
| 7 foo: { break bar; break foo; } /// 01: compile-time error | |
| 8 } | |
| 9 | |
| 10 undeclaredBreakLabel2() { | |
| 11 foo: while (true) { break bar; break foo; } /// 02: compile-time error | |
| 12 } | |
| 13 | |
| 14 // An unlabeled break must be inside a loop or switch. | |
| 15 noBreakTarget() { | |
| 16 foo: if (true) { break; break foo; } /// 03: compile-time error | |
| 17 } | |
| 18 | |
| 19 // A continue label must be declared where it's used. | |
| 20 undeclaredContinueLabel() { | |
| 21 foo: for (;;) { continue bar; break foo; } /// 04: compile-time error | |
| 22 } | |
| 23 | |
| 24 // An unlabeled continue must be inside a loop. | |
| 25 noContinueTarget() { | |
| 26 foo: if (true) continue; else break foo; /// 05: compile-time error | |
| 27 } | |
| 28 | |
| 29 // A continue label must point to a continue-able statement. | |
| 30 wrongContinueLabel() { | |
| 31 foo: if (true) continue foo; /// 06: compile-time error | |
| 32 } | |
| 33 | |
| 34 // Labels are not captured by closures. | |
| 35 noncaptureLabel() { | |
| 36 foo: { /// 07: compile-time error | |
| 37 (() { break foo; })(); /// 07: continued | |
| 38 break foo; /// 07: continued | |
| 39 } /// 07: continued | |
| 40 } | |
| 41 | |
| 42 // Implicit break targets are not captured by closures. | |
| 43 noncaptureBreak() { | |
| 44 while(true) (() { break; })(); /// 08: compile-time error | |
| 45 } | |
| 46 | |
| 47 // Implicit continue targets are not captured by closures. | |
| 48 noncaptureContinue() { | |
| 49 while(true) (() { continue; })(); /// 09: compile-time error | |
| 50 } | |
| 51 | |
| 52 main() { | |
| 53 undeclaredBreakLabel1(); | |
| 54 undeclaredBreakLabel2(); | |
| 55 noBreakTarget(); | |
| 56 undeclaredContinueLabel(); | |
| 57 noContinueTarget(); | |
| 58 wrongContinueLabel(); | |
| 59 noncaptureLabel(); | |
| 60 noncaptureBreak(); | |
| 61 noncaptureContinue(); | |
| 62 } | |
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