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b955271e51
Change-Id: I8d41ad649c83cd97253006693a0cf3676de418e9 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/145542 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
28 lines
720 B
Dart
28 lines
720 B
Dart
// Copyright (c) 2013, 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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// Dart test program for constructors and initializers.
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// Check function subtyping with type variables in factory constructors.
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import 'package:expect/expect.dart';
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typedef void Foo<T>(T t);
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class C<T> {
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factory C(foo) {
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if (foo is Foo<T>) {
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return new C.internal();
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}
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throw 'not Foo<$T>';
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}
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C.internal();
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}
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void method(String s) {}
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void main() {
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Expect.isNotNull(new C<String>(method));
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Expect.throws(() => new C<bool>(method), (error) => error == 'not Foo<bool>');
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}
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