dart-sdk/tests/dart2js/34701_test.dart
Joshua Litt f9f1ca6171 [dart2js] Create tests/dart2js for nnbd.
Change-Id: Ib8721cf976803d8d1b9d723b7e691e344c768b67
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149881
Reviewed-by: Sigmund Cherem <sigmund@google.com>
Commit-Queue: Joshua Litt <joshualitt@google.com>
2020-06-09 16:53:15 +00:00

36 lines
918 B
Dart

// Copyright (c) 2017, 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.
// dart2jsOptions=--omit-implicit-checks
/// Regression test for issue 34701.
import 'dart:async';
import 'package:expect/expect.dart';
class A {
@pragma('dart2js:noInline') //# 01: ok
Future<T> _foo<T>(FutureOr<T> Function() f) async {
return await f();
}
@pragma('dart2js:noInline') //# 01: continued
Future<String> get m async => _foo(() => "a");
}
class M {}
class B extends A with M {
@pragma('dart2js:noInline') //# 01: continued
Future<T> _foo<T>(FutureOr<T> Function() f) => super._foo(f);
}
main() async {
var b = new B();
print(b.m.runtimeType);
print((await b.m).runtimeType);
Expect.isTrue(b.m is Future<String>);
Expect.isTrue((await b.m) is String);
}