| // Copyright (c) 2020, 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 assigned is a boolean value indicating whether the variable has |
| /// definitely been assigned at the given point in the source code. When assigned |
| /// is true, we say that the variable is definitely assigned at that point. |
| /// |
| /// @description Checks definite assignment and for-in loop |
| /// |
| /// @author sgrekhov@unipro.ru |
| |
| |
| main() { |
| var collection = [3, 1, 4, 1, 5]; |
| int n; |
| for (var v in collection) { |
| n = 42; |
| } |
| n; // It's an error to read local non-nullable variable when it is not definitely assigned |
| //^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
