45 lines
1.1 KiB
JavaScript
45 lines
1.1 KiB
JavaScript
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// Copyright 2017 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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const obj = {};
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Object.defineProperty(obj, 'value', {
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enumerable: true,
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configurable: true,
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get: assertUnreachable,
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set: assertUnreachable,
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});
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let called_get = false;
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let called_has = false;
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let called_set = false;
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const has = function(target, prop) {
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assertEquals('value', prop);
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called_has = true;
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return false; // Need to return false to trigger GetOwnProperty call.
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};
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const get = function(target, prop) {
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assertEquals('value', prop);
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called_get = true;
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return 'yep';
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};
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const set = function(target, prop, value) {
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assertEquals('value', prop);
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called_set = true;
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return true; // Need to return true to trigger GetOwnProperty call.
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};
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const proxy = new Proxy(obj, { has, get, set });
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assertFalse(Reflect.has(proxy, 'value'));
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assertTrue(called_has);
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assertEquals('nope', proxy.value = 'nope');
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assertTrue(called_set);
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assertEquals('yep', proxy.value);
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assertTrue(called_get);
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