| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
|
|
| /**
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| * @assertion An interface has a set of direct superinterfaces.
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| * An interface J is a superinterface of an interface I iff either J is a
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| * direct superinterface of I or J is a superinterface of a direct
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| * superinterface of I.
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| * @description Checks that it is a compile-time error if the chain of
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| * superinterfaces forms a circular dependency.
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| * @compile-error
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| * @author vasya
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| */
|
|
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| abstract class C implements A {}
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| abstract class B implements C {}
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| abstract class A implements B {}
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|
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| class D implements A {}
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|
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| main() {
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| new D();
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| }
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|