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16f072c783
Change-Id: Id66e712eaf52fda2069ce5177aa091e373ad52c1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134244 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Reviewed-by: Erik Ernst <eernst@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
21 lines
574 B
Dart
21 lines
574 B
Dart
// Copyright (c) 2018, 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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// Test that TypeErrors happen for async methods without using returned Future.
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import 'dart:async';
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import 'package:expect/expect.dart';
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class D<T> {
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// Parametric covariance check is usually compiled into method.
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Future<T> add(T n) async {
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return n;
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}
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}
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main() async {
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D<num> d = new D<int>();
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Expect.throwsTypeError(() => d.add(4.6));
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}
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