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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 // Super initializer and super constructor body are executed in with the same | |
7 // bindings. | |
8 | |
9 String trace = ""; | |
10 | |
11 int E(int i) { | |
12 trace += "$i-"; | |
13 return i; | |
14 } | |
15 | |
16 class A { | |
17 // f closes-over arg. arg needs to be preserved while b2 is initialized. | |
18 A(arg) | |
19 : a = E(arg += 1) | |
20 , f = (() => E(arg += 10)) { | |
21 // b2 should be initialized between the above initializers and the following | |
22 // statements. | |
23 var r1 = f(); | |
24 E(arg += 100); // If this is the same arg as closed by f, ... | |
25 var r2 = f(); // .. the effect of +=100 will be seen here. | |
26 } | |
27 final a; | |
28 final f; | |
29 } | |
30 | |
31 class B extends A { | |
32 // Initializers in order: b1, super, b2. | |
33 B(x, y) : b1 = E(x++), super(1000), b2 = E(y++) { | |
34 // Implicit super call to A's body happens here. | |
35 E(x); | |
36 E(y); | |
37 f(); | |
38 } | |
39 var b1; | |
40 var b2; | |
41 } | |
42 | |
43 class C extends B { | |
44 C() : super(10, 20); | |
45 } | |
46 | |
47 main() { | |
48 var c = new C(); | |
49 Expect.equals("10-1001-20-1011-1111-1121-11-21-1131-", trace); | |
50 } | |
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