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