// Copyright (c) 2013, 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<T> {}

class C<T> {
  a() {
    return () => new A<T>();
  }

  list() {
    return () => <T>[];
  }

  map() {
    return () => <T, T>{};
  }
}

main() {
  Expect.isTrue(new C<int>().a()() is A<int>);
  Expect.isFalse(new C<int>().a()() is A<String>);
  Expect.isTrue(new C<int>().list()() is List<int>);
  Expect.isFalse(new C<int>().list()() is List<String>);
  Expect.isTrue(new C<int>().map()() is Map<int, int>);
  Expect.isFalse(new C<int>().map()() is Map<String, int>);
  Expect.isFalse(new C<int>().map()() is Map<int, String>);
}