blob: 8a0e046de84fbbe9123c39840d7ed1ec1018adf4 [file] [log] [blame]
* Copyright (c) 2018, 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1)
* when:
* Left Bottom: if T0 is Never then T0 <: T1
* @description Check that if type T0 is Never then T0 is a subtype of T1
* @author
// SharedOptions=--enable-experiment=non-nullable,nonfunction-type-aliases
import "../../../../Utils/expect.dart";
class T1 {}
class C<X extends T1> {}
void foo<X extends T1>() {}
typedef Neverland = Never;
main() {
Expect.isTrue(C<Neverland>() is C<Never>);
void x2 = foo<Neverland>();