Lasse R.H. Nielsen
5642199dd0
Change-Id: I35bb926e53e92fd02e264fb5b14feadf063fb8db Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/257961 Reviewed-by: Michael Thomsen <mit@google.com> Commit-Queue: Lasse Nielsen <lrn@google.com>
58 lines
1.2 KiB
Dart
58 lines
1.2 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Dart test program for constructors and initializers.
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import "package:expect/expect.dart";
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// Super initializer and super constructor body are executed in with the same
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// bindings.
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String trace = "";
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int E(int i) {
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trace = "$trace$i-";
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return i;
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}
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class A {
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A({arg1 = 100, arg2 = 200})
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: a1 = E(arg1++),
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a2 = E(arg2++) {
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// b2 should be initialized between the above initializers and the following
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// statements.
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E(arg1); // 101
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E(arg2); // 51
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}
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var a1;
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var a2;
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}
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class B extends A {
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// Initializers in order: b1, super, b2.
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B(x, y)
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: b1 = E(x++),
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b2 = E(y++),
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super(arg2: 50) {
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// Implicit super call to A's body happens here.
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E(x); // 11
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E(y); // 21
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}
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var b1;
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var b2;
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}
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class C extends B {
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C() : super(10, 20);
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}
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main() {
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var c = new C();
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Expect.equals(100, c.a1);
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Expect.equals(50, c.a2);
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Expect.equals(10, c.b1);
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Expect.equals(20, c.b2);
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Expect.equals("10-20-100-50-101-51-11-21-", trace);
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}
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