| // Copyright (c) 2014, 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 'dart:mirrors'; |
| |
| import 'package:expect/expect.dart'; |
| |
| class A { |
| toString() => "A"; |
| } |
| |
| class B { |
| int x = 99; |
| toString() => "B"; |
| } |
| |
| void main() { |
| var a = new A(); |
| var am = reflect(a); |
| for (int i = 0; i < 10; i++) { |
| // Adds a probe function on the symbol. |
| am.getField(#toString); |
| } |
| var b = new B(); |
| var bm = reflect(b); |
| for (int i = 0; i < 10; i++) { |
| // Adds a field-cache on the mirror. |
| bm.getField(#x); |
| } |
| // There is a cache now, but the cache should not contain 'toString' from |
| // JavaScript's Object.prototype. |
| var toString = bm.getField(#toString).reflectee; |
| Expect.equals("B", toString()); |
| } |