Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
34 lines
976 B
Dart
34 lines
976 B
Dart
// Copyright (c) 2011, 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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//
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// Test verifying that generic extends are processed correctly.
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// @dart = 2.9
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import "package:expect/expect.dart";
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class A<T> {}
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class B<T1, T2 extends A<T1>> {}
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class C<T1 extends A<T2>, T2> {}
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main() {
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var a = new A<String>();
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var b = new B<String, A<String>>();
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var c = new C<A<String>, String>();
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Expect.isTrue(a is Object);
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Expect.isTrue(a is A<Object>);
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Expect.isTrue(a is A<String>);
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Expect.isTrue(a is! A<int>);
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Expect.isTrue(b is Object);
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Expect.isTrue(b is B<Object, A<Object>>);
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Expect.isTrue(b is B<String, A<String>>);
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Expect.isTrue(b is! B<int, A<int>>);
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Expect.isTrue(c is Object);
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Expect.isTrue(c is C<A<Object>, Object>);
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Expect.isTrue(c is C<A<String>, String>);
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Expect.isTrue(c is! C<A<int>, int>);
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}
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