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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 // Dart test program for constructors and initializers. | |
| 5 | |
| 6 // Expect the initializer expressions E(i) to be evaluated | |
| 7 // in the order 1, 2, 3, ... | |
| 8 // Each expression must be evaluated exactly once. | |
| 9 | |
| 10 String trace = ""; | |
| 11 | |
| 12 int E(int i) { | |
| 13 trace = trace.concat("$i-"); | |
| 14 return i; | |
| 15 } | |
| 16 | |
| 17 class A { | |
| 18 var a1; | |
| 19 A(x, y) : a1 = E(4) { | |
| 20 Expect.equals(2, x); | |
| 21 Expect.equals(3, y); | |
| 22 Expect.equals(4, a1); | |
| 23 E(6); | |
| 24 } | |
| 25 } | |
| 26 | |
| 27 class B extends A { | |
| 28 var b1, b2; | |
| 29 | |
| 30 B(x) : b1 = E(1), super(E(2), E(3)), b2 = E(5) { | |
| 31 Expect.equals(1, b1); | |
| 32 Expect.equals(5, b2); | |
| 33 E(7); | |
| 34 } | |
| 35 } | |
| 36 | |
| 37 main() { | |
| 38 var b = new B(0); | |
| 39 Expect.equals("1-2-3-4-5-6-7-", trace); | |
| 40 } | |
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