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19 lines
394 B
Dart
19 lines
394 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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class A implements C {}
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class B extends A {}
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class C extends B implements D {}
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class D {}
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main() {
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print(new A());
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print(new B());
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print(new C());
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print(new D());
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}
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