| /* |
| * 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 A simple member invocation on a target expression X is an |
| * expression of one of the forms: |
| * Member invocation on target X Corresponding member name |
| * X[expr2] = expr3 []= |
| * @description Check explicit extension member invocation in form of |
| * X[expr2] = expr3 |
| * @author sgrekhov@unipro.ru |
| */ |
| |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| String value = ""; |
| void operator []=(int index, String value) { |
| this.value = "C:$value:$index"; |
| } |
| } |
| |
| extension Extension1 on C { |
| void operator []=(int index, String value) { |
| this.value = "Extension1:$value:$index"; |
| } |
| } |
| |
| extension Extension2 on C { |
| void operator []=(int index, String value) { |
| this.value = "Extension2:$value:$index"; |
| } |
| } |
| |
| main() { |
| C c = new C(); |
| Extension1(c)[42] = "Lily was here"; |
| Expect.equals("Extension1:Lily was here:42", c.value); |
| Extension2(c)[41] = "Show must go on"; |
| Expect.equals("Extension2:Show must go on:41", c.value); |
| c[40] = "Let it be"; |
| Expect.equals("C:Let it be:40", c.value); |
| } |