// 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. | |
class A<T> { | |
void f<U>(Map<T, U> m) {} | |
} | |
class B extends A<String> { | |
// To see that this is a valid override, both T and U need to be substituted | |
// correctly. | |
void f<V>(Map<String, V> m) {} | |
} | |
main() {} |