| // 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)] |
| /// |
| /// The other assignment operators are handled equivalently. |
| /// |
| /// @description Check that assignments like e1?[e2] %= e3 translates to: |
| /// SHORT[EXP(e1), fn[x] => x[EXP(e2)] %= EXP(e3)] |
| /// @author sgrekhov@unipro.ru |
| |
| // Requirements=nnbd-strong |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| List<int> _list = [3, 1, 4]; |
| int operator[](int index) => _list[index]; |
| void operator[]=(int index, dynamic value) => _list[index] = value; |
| |
| void init() { |
| _list = [3, 1, 4]; |
| } |
| } |
| |
| void testShort(C? x, int index, dynamic value) { |
| var actual = x?[index] %= value; |
| var n0 = x; |
| x?.init(); |
| var expected = n0 == null ? null : n0[index] %= value; |
| Expect.equals(expected, actual); |
| } |
| |
| main() { |
| C? c1 = null; |
| testShort(c1, 0, 42); |
| c1 = new C(); |
| testShort(c1, 0, 42); |
| |
| C c2 = new C(); |
| testShort(c2, 0, 42); |
| } |