29 lines
1.0 KiB
JavaScript
29 lines
1.0 KiB
JavaScript
|
// Copyright 2015 the V8 project authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
var handler = {};
|
||
|
|
var target = { a: 1 };
|
||
|
|
var proxy = new Proxy(target, handler);
|
||
|
|
|
||
|
|
assertTrue(target.propertyIsEnumerable('a'));
|
||
|
|
assertTrue(proxy.propertyIsEnumerable('a'));
|
||
|
|
assertFalse(target.propertyIsEnumerable('b'));
|
||
|
|
assertFalse(proxy.propertyIsEnumerable('b'));
|
||
|
|
|
||
|
|
handler.getOwnPropertyDescriptor = function(target, prop) {
|
||
|
|
return { configurable: true, enumerable: true, value: 10 };
|
||
|
|
}
|
||
|
|
assertTrue(target.propertyIsEnumerable('a'));
|
||
|
|
assertTrue(proxy.propertyIsEnumerable('a'));
|
||
|
|
assertFalse(target.propertyIsEnumerable('b'));
|
||
|
|
assertTrue(proxy.propertyIsEnumerable('b'));
|
||
|
|
|
||
|
|
handler.getOwnPropertyDescriptor = function(target, prop) {
|
||
|
|
return { configurable: true, enumerable: false, value: 10 };
|
||
|
|
}
|
||
|
|
assertTrue(target.propertyIsEnumerable('a'));
|
||
|
|
assertFalse(proxy.propertyIsEnumerable('a'));
|
||
|
|
assertFalse(target.propertyIsEnumerable('b'));
|
||
|
|
assertFalse(proxy.propertyIsEnumerable('b'));
|