blob: 83abc500226406108fb3362eb44558d1a36ce001 [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 non-nullable if T <: Object. This is
/// equivalent to the syntactic criterion that T is any of:
/// Never
/// Any function type (including Function)
/// Any interface type except Null.
/// S* for some S where S is non-nullable
/// FutureOr<S> where S is non-nullable
/// X extends S where S is non-nullable
/// X & S where S is non-nullable
/// @description Check that type which is not subtype of Object cannot be
/// assigned to non-nullable type. Test FutureOr<S> where S is non-nullable. Test
/// legacy pre-NNBD types
/// @author
// Requirements=nnbd-weak
import "dart:async";
import "legacy_lib.dart";
main() {
FutureOr<A> fo = null;
// ^^^^
// [analyzer] unspecified
// [cfe] unspecified