dart-sdk/tests/language_2/function/type_test.dart
Leaf Petersen b101a7d002 Add language versions to _2 test libraries
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
2021-04-26 17:58:57 +00:00

20 lines
695 B
Dart

// Copyright (c) 2012, 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.
// @dart = 2.9
// Dart test for a function type test that cannot be eliminated at compile time.
import "package:expect/expect.dart";
typedef FListInt(List<int> l);
main() {
Expect.throwsTypeError(() {
// Static result type of f(), i.e. FList, is a subtype of FListInt.
// However, run time type of returned function is not a subtype of FListInt.
// Run time type check should not be eliminated.
FListInt fli = ((List<String> l) => null) as dynamic;
});
}