blob: 16e514d8611bba6ac4a977ca7d7833b18ebe47bb [file] [log] [blame]
// Copyright (c) 2020, 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 T is nullable if Null <: T and not T <: Object.
/// This is equivalent to the syntactic criterion that T is any of:
/// Null
/// S? for some S
/// S* for some S where S is nullable
/// FutureOr<S> for some S where S is nullable
/// dynamic
/// void
/// @description Check that null can be assigned to nullable type. Test S? for
/// some S
/// @author
// Requirements=nnbd-weak
class C {}
main() {
C? c = C();
c = null;
int? i = null;
String? s = "";
s = null;