blob: f24f2376af161d5fcd8328e846795d1080ef04e3 [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 It is a warning to use the null check operator (!) on an
* expression of type T if T is strictly non-nullable
*
* @description It is a warning to use the null check operator (!) on an
* expression of type T if T is strictly non-nullable. Test <T extends Object>
* @author sgrekhov@unipro.ru
* @issue 39598
*/
test<T extends Object>(T t) {
t!;
//^
// [cfe] Operand of null-aware operation '!' has type 'T' which excludes null.
// ^
// [analyzer] STATIC_WARNING.UNNECESSARY_NON_NULL_ASSERTION
}
main() {
test<String>("Lily was here");
}