Sigmund Cherem
c26f1c6bf7
Change-Id: Ib795cfdbcf9599f7e4bc2688b9a965f50c0b7c3c Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/98421 Commit-Queue: Sigmund Cherem <sigmund@google.com> Reviewed-by: Stephen Adams <sra@google.com>
43 lines
1.0 KiB
Dart
43 lines
1.0 KiB
Dart
// Copyright (c) 2019, 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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/// Regression test: stack trace can be null when using async-await.
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import 'dart:async';
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import 'package:expect/expect.dart';
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main() async {
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C value = await test();
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Expect.equals("[[null]]", "$value");
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}
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Future<C> test() async {
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try {
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await throwInFuture();
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return C(StackTrace.fromString("no-throw"));
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} on MyException catch (e, s) {
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return C(s); // Note: s is null
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}
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}
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Future<int> throwInFuture() {
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var completer = new Completer<int>();
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var future = completer.future;
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new Future(() {}).then((_) {
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StackTrace.fromString("hi");
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completer.completeError(new MyException());
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});
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return future;
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}
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class MyException {}
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class C {
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final StackTrace _s; // Global inference used to infer this field as non-null
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C(this._s);
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@override
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String toString() => '[[$_s]]';
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}
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