Robert Nystrom
6cc9efe290
Change-Id: I94dfcea40566190c6bf153c108b0d0d5dbf27a4d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/400148 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
51 lines
1.2 KiB
Dart
51 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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// f closes-over arg. arg needs to be preserved while b2 is initialized.
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A(arg) : a = E(arg += 1), f = (() => E(arg += 10)) {
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// b2 should be initialized between the above initializers and the following
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// statements.
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var r1 = f();
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E(arg += 100); // If this is the same arg as closed by f, ...
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var r2 = f(); // .. the effect of +=100 will be seen here.
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}
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final a;
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final f;
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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) : b1 = E(x++), b2 = E(y++), super(1000) {
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// Implicit super call to A's body happens here.
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E(x);
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E(y);
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f();
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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("10-20-1001-1011-1111-1121-11-21-1131-", trace);
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}
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