| // 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 |
| |
| import "package:expect/expect.dart"; |
| |
| // Test of compile time constant local variables. |
| |
| const N = 8; |
| |
| class ConstFoo { |
| final x; |
| const ConstFoo(this.x); |
| } |
| |
| main() { |
| const MIN = 2 - 1; |
| const MAX = N * 2; |
| const MASK = (1 << (MAX - MIN + 1)) - 1; // 65535. |
| Expect.equals(1, MIN); |
| Expect.equals(16, MAX); |
| Expect.equals(65535, MASK); |
| const s = 'MIN = $MIN MAX = $MAX MASK = $MASK'; |
| Expect.identical(s, 'MIN = $MIN MAX = $MAX MASK = $MASK'); |
| Expect.equals("MIN = 1 MAX = 16 MASK = 65535", s); |
| var cf1 = const ConstFoo(MASK); |
| var cf2 = const ConstFoo(s); |
| var cf3 = const ConstFoo('MIN = $MIN MAX = $MAX MASK = $MASK'); |
| Expect.identical(cf2, cf3); |
| Expect.isFalse(identical(cf2, cf1)); |
| } |