blob: cad3f94200a6dd0acd74d262921df73579a5d139 [file] [log] [blame]
// Copyright (c) 2018, 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.
// @dart = 2.9
// Test that TypeErrors happen for sync* methods without creating iterator.
import 'package:expect/expect.dart';
class D<T> {
// Parametric covariance check is usually compiled into method.
Iterable<T> add(T n) sync* {
yield n;
main() {
D<num> d = new D<int>();
Expect.throwsTypeError(() => d.add(4.6));