// Copyright (c) 2019, 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.

/// @assertion Any use of a type [T] which is not well-bounded is a
/// compile-time error.
/// @description Checks that compile error is thrown when function alias with not
/// well bounded type parameter is declared
/// @Issue 37031
/// @author iarkh@unipro.ru


class A<T extends A<T>> {}

typedef void B1<X extends A>(X);      //# 01: compile-time error
typedef void B2<X extends A<A>>(X);   //# 02: compile-time error
typedef void B3<X extends A<int>>(X); //# 03: compile-time error

main() {
}