Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
38 lines
821 B
Dart
38 lines
821 B
Dart
// Copyright (c) 2012, 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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import "package:expect/expect.dart";
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abstract class A {
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factory A(int x, int y) = B;
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}
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class B implements A {
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final int x;
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final int y;
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B(this.x, this.y);
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// This factory should never be invoked.
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factory B.A(int a, int b) {
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return new B(0, 0);
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}
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factory B.X(int a, int b) {
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return new B(a * 10, b * 10);
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}
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}
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main() {
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var a = new B(1, 2);
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// Check that constructor B is invoked and not factory B.A.
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Expect.equals(1, a.x);
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Expect.equals(2, a.y);
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var x = new B.X(11, 22);
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// Check that factory is invoked.
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Expect.equals(110, x.x);
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Expect.equals(220, x.y);
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}
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