// Copyright (c) 2022, 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<X extends num> { | |
const A({int? x, String? y, bool? z}); | |
} | |
const a = {"a": A(x: 0, y: "", z: false, x: 1)}; | |
main() {} |