// 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.

// @dart = 2.9

/// @assertion
///    typeParameter ::= metadata identifier (extends typeNotVoid)?
///    typeParameters ::= ‘<’ typeParameter (‘,’ typeParameter)* ‘>’
/// ...
/// Type parameters are declared in the type parameter scope of a class or
/// function. The type parameters of a generic [G] are in scope in the bounds of
/// all of the type parameters of [G].
/// @description Checks that typedef type parameter is in the type parameter
/// scope.
/// @author iarkh@unipro.ru

import "../../Utils/expect.dart";

class A {}

typedef Test<X1 extends A, X2 extends X1> = X1 Function(X2);
typedef Expected1 = A Function(Null);
typedef Expected2 = A Function(A);

main() {
  Expect.equals(Expected1, Test);
  Expect.notEquals(Expected2, Test);
}