dart-sdk/tests/lib_2/mirrors/get_field_cache_test.dart
Leaf Petersen b101a7d002 Add language versions to _2 test libraries
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Leaf Petersen <leafp@google.com>
2021-04-26 17:58:57 +00:00

38 lines
882 B
Dart

// 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());
}