|  | // Copyright (c) 2024, 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. | 
|  |  | 
|  | // Requirements=nnbd-weak | 
|  | // dart2jsOptions=--experiment-null-safety-checks | 
|  | // ddcOptions=--weak-null-safety-errors | 
|  |  | 
|  | import 'package:dart2js_runtime_metrics/null_safety.dart'; | 
|  | import 'package:expect/expect.dart'; | 
|  |  | 
|  | void main() { | 
|  | onExtraNullSafetyError = (e, _) { | 
|  | throw e; | 
|  | }; | 
|  |  | 
|  | Expect.throwsTypeError(() => [1, 2, null] is List<int>); | 
|  |  | 
|  | final getInt = () => null; | 
|  | Expect.throwsTypeError(() => getInt as int Function()); | 
|  |  | 
|  | Expect.throwsTypeError(() => [1, 2, null] as List<int>); | 
|  |  | 
|  | Expect.throwsTypeError(() => null as String); | 
|  |  | 
|  | Expect.throwsTypeError(() => null as Object); | 
|  | } |