| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion A constant expression is an expression whose value can never |
| /// change, and that can be evaluated entirely at compile time. |
| /// A constant expression is one of the following: |
| /// . . . |
| /// • A literal string where any interpolated expression is a compile-time |
| /// constant that evaluates to a numeric, string or boolean value or to null. |
| /// @description Checks that a string literal that involves string interpolation, |
| /// that evaluates to a bool value and is a constant expression can be assigned |
| /// to a constant variable. |
| /// @author msyabro |
| |
| |
| import "../../../Utils/expect.dart"; |
| |
| const i1 = "${1 is int}"; |
| const i2 = "${1 is String}"; |
| |
| main() { |
| Expect.equals("true", i1); |
| Expect.equals("false", i2); |
| } |