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Change-Id: Icb4eae77fab5257ea00ff948d3f775725398e6ab Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142067 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
32 lines
848 B
Dart
32 lines
848 B
Dart
// Copyright (c) 2016, 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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class Implementation {
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dynamic method(int x) {}
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}
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abstract class Interface1<T> {
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dynamic method(T x);
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}
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abstract class Interface2<T> {
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dynamic method(T x);
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}
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class Subclass extends Implementation
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implements Interface1<int>, Interface2<int> {}
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main() {
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Subclass subclass = new Subclass();
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Interface1<int> intInterface1 = subclass;
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Interface1<num> numInterface1 = intInterface1;
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Expect.throws(() => numInterface1.method(2.5));
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Interface2<int> intInterface2 = subclass;
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Interface2<num> numInterface2 = intInterface2;
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Expect.throws(() => numInterface2.method(2.5));
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}
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