blob: 0bf731964d76cbbfdaae5429509545215240aef8 [file] [log] [blame]
// 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.
// @dart = 2.9
import 'package:expect/expect.dart';
class A {}
class B extends A {}
class Foo<T extends A> {
String foo(T x) {
if (x is B) {
var list = [x];
return list.runtimeType.toString();
}
return '';
}
List<T> bar(T x) {
var tlist = <T>[];
if (x is B) {
var list = [x];
tlist = list;
}
return tlist;
}
}
main() {
var foo = new Foo<B>();
var b = new B();
// List class has many different platform specific implementations
// so we can't rely on the fact that all of them have the same
// user visible name. Instead we build a name for List<B> from List<A>.
final expected = (<A>[]).runtimeType.toString().replaceAll('<$A>', '<$B>');
Expect.equals(expected, foo.foo(b));
Expect.listEquals([b], foo.bar(b));
}