dart-sdk/tests/web/js_interop_implements_test.dart
Sigmund Cherem 912005267d [web] rename suite dart2js -> web.
Change-Id: I46be49b2effec3e38a3dc44cd45cfe736f77fa78
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/182680
Commit-Queue: Sigmund Cherem <sigmund@google.com>
Reviewed-by: Joshua Litt <joshualitt@google.com>
Reviewed-by: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Stephen Adams <sra@google.com>
2021-02-04 23:11:32 +00:00

37 lines
877 B
Dart

// 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.
// Test that methods implemented (not extended) in js-interop classes are still
// considered live.
@JS()
library anonymous_js_test;
import 'package:js/js.dart';
@JS()
@anonymous
abstract class A {
external factory A();
external String get a;
external set a(String a);
}
@JS()
@anonymous
abstract class B implements A {
external factory B();
external String get b;
external set b(String b);
}
void main() {
final b = B();
// This setter is missing if we don't assume the receiver could be an
// unknown but concrete implementation of A.
b.a = 'Hi';
b.b = 'Hello';
if (b.a != 'Hi') throw 'b.a';
if (b.b != 'Hello') throw 'b.b';
}