| /* |
| * Copyright (c) 2019, 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 If e1 translates to F then e1?[e2] = e3 translates to: |
| * SHORT[EXP(e1), fn[x] => x[EXP(e2)] = EXP(e3)] |
| * |
| * @description Check that if e1 translates to F then e1?[e2] = e3 translates |
| * to: SHORT[EXP(e1), fn[x] => x[EXP(e2)] = EXP(e3)]. Test legacy pre-NNBD types |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable |
| // Requirements=nnbd-weak |
| import "../../Utils/expect.dart"; |
| import "legacy_lib.dart"; |
| |
| void testShort(A? x, int index, dynamic value) { |
| var actual = x?[index] = value; |
| var n0 = x; |
| var expected = n0 == null ? null : n0[index] = value; |
| Expect.equals(expected, actual); |
| } |
| |
| main() { |
| A? a1 = null; |
| testShort(a1, 42, "Lily was here"); |
| a1 = new A(); |
| testShort(a1, 42, "Show must go on"); |
| |
| A a2 = new A(); |
| testShort(a2, 42, "Show must go on"); |
| } |