Files
sdk/tests/language/switch/fallthru_test.dart
T
Robert Nystrom 5a27ea139e Migrate language_2/switch to NNBD.
Change-Id: Idbf338099414c78e1bb6ee2852c41495fb53f70b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/151471
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
Reviewed-by: Leaf Petersen <leafp@google.com>
2020-06-17 02:17:36 +00:00

33 lines
919 B
Dart

// Copyright (c) 2011, 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.
// Check that FallThroughError is thrown if switch clause does not terminate.
import "package:expect/expect.dart";
String test(int n) {
String result = "foo";
switch (n) {
case 0:
result = "zero";
break;
case 1:
// ^^^^
// [analyzer] COMPILE_TIME_ERROR.SWITCH_CASE_COMPLETES_NORMALLY
// [cfe] Switch case may fall through to the next case.
result = "one";
// fall-through, error if case is non-empty
case 9:
result = "nine";
// No implicit FallThroughError at end of switch statement.
}
return result;
}
main() {
Expect.equals("zero", test(0));
Expect.equals("nine", test(1));
Expect.equals("nine", test(9));
Expect.equals("foo", test(99));
}