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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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