blob: 8a332c83092758f187e687fca13dcd52100deeb6 [file] [log] [blame]
// 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 the very simple case:
/// [A<X extends num>]
/// @author iarkh@unipro.ru
import "../../../Utils/expect.dart";
class A<X extends num> {}
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<Never>?>? target3 = fsource;
// ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
F<A<Object>?>? target4 = fsource;
// ^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
A();
}