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>
25 lines
845 B
Dart
25 lines
845 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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// Check that duplicate types in implements/extends list are
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// compile-time errors.
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abstract class I {}
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abstract class J {}
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abstract class K<T> {}
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class X implements I, J, I { } // //# 01: compile-time error
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class X implements J, I, K<int>, K<int> { } // //# 02: compile-time error
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abstract class Z implements I, J, J { } // //# 03: compile-time error
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abstract class Z implements K<int>, K<int> { } // //# 04: compile-time error
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main() {
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X x = new X(); // //# 01: continued
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X x = new X(); // //# 02: continued
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Z z = new Z(); // //# 03: continued
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Z z = new Z(); // //# 04: continued
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}
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