| // 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 test program for testing params. |
| // VMOptions=--optimization-counter-threshold=10 |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| main() { |
| for (int i = 0; i < 20; i++) testNumberIdentity(); |
| } |
| |
| testNumberIdentity() { |
| const int smi = 8; |
| const int mint = 9223372036854775806; |
| const double dbl = 8.0; |
| |
| var a = smi; |
| var b = a + 0; |
| Expect.isTrue(identical(a, b)); |
| Expect.isFalse(identical(b, mint)); |
| |
| a = mint; |
| b = a + 0; |
| Expect.isTrue(identical(a, b)); |
| Expect.isFalse(identical(b, smi)); |
| Expect.isFalse(identical(b, dbl)); |
| |
| var a2 = dbl; |
| var b2 = a2 + 0.0; |
| Expect.isTrue(identical(a2, b2)); |
| Expect.isFalse(identical(b2, mint)); |
| } |