blob: fddc23248e456378613371640b0b9c3c111533d0 [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 For the purposes of errors and warnings, the null aware operators
* ?., ?.., and ?[] are checked as if the receiver of the operator had
* non-nullable type. More specifically, if the type of the receiver of a null
* aware operator is T, then the operator is checked as if the receiver had type
* NonNull(T).
* @description Check that it is no error if receiver has nullable type. Test
* type alias
* @author
// SharedOptions=--enable-experiment=nonfunction-type-aliases
// Requirements=nnbd-strong
class A {
void test() {}
int operator[](int index) => 0;
typedef AAlias = A?;
main() {
AAlias a = null;
a ?.. test();