LanguageFeatures/Simple-bounds/static/type-aliases/typedef1_l1_t05.dart

// 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 Let [G] be a generic class or parameterized type alias with formal
/// type parameter declarations [F1] .. [Fk] containing formal type parameters
/// [X1] .. [Xk] and bounds [B1] .. [Bk]. We say that the formal type parameter
/// [Xj] has a simple bound when one of the following requirements is satisfied:
/// [Bj] is omitted.
/// [Bj] is included, but does not contain any of [X1] .. [Xk]. If [Bj] contains
/// a type [T] on the form qualified (for instance, [C] or [p.D]) which denotes a
/// generic class or parameterized type alias [G1] (that is, [T] is a raw type),
/// every type argument of [G1] has a simple bound.
/// @description Checks that simple bounds are correct for non-nullable
/// non-function type alias [A<X extends num> = C<X>?]
/// @Issue 42449
/// @author iarkh@unipro.ru

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

class C<X> {}
typedef A<X extends num> = C<X>?;

main() {
  A source;
  var fsource = toF(source);

  F<A<num>>? target = fsource;

  F<A<num?>>? target0 = fsource;
//                       ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  F<A<int>>? target1 = fsource;
//                     ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  F<A<dynamic>>? target2 = fsource;
//                         ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  F<A<Null>>? target3 = fsource;
//                      ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  F<A<Object>>? target4 = fsource;
//                        ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  F<A<Never>>? target5 = fsource;
//                       ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  A();
}