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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 A([arg1 = 100, arg2 = 200]) : a1 = E(arg1++), a2 = E(arg2++) { | |
| 18 // b2 should be initialized between the above initializers and the following | |
| 19 // statements. | |
| 20 E(arg1); // 101 | |
| 21 E(arg2); // 51 | |
| 22 } | |
| 23 var a1; | |
| 24 var a2; | |
| 25 } | |
| 26 | |
| 27 class B extends A { | |
| 28 // Initializers in order: b1, super, b2. | |
| 29 B(x, y) : b1 = E(x++), super(arg2: 50), b2 = E(y++) { | |
| 30 // Implicit super call to A's body happens here. | |
| 31 E(x); // 11 | |
| 32 E(y); // 21 | |
| 33 } | |
| 34 var b1; | |
| 35 var b2; | |
| 36 } | |
| 37 | |
| 38 class C extends B { | |
| 39 C() : super(10, 20); | |
| 40 } | |
| 41 | |
| 42 main() { | |
| 43 var c = new C(); | |
| 44 Expect.equals(100, c.a1); | |
| 45 Expect.equals(50, c.a2); | |
| 46 Expect.equals(10, c.b1); | |
| 47 Expect.equals(20, c.b2); | |
| 48 | |
| 49 Expect.equals("10-100-50-20-101-51-11-21-", trace); | |
| 50 } | |
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