// Copyright (C) 2015 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys description: > If target is not extensible, the result must contain all the keys of the own properties of the target object and no other values info: | [[OwnPropertyKeys]] ( ) ... 21. Return trapResult. features: [Proxy] ---*/ var target = { foo: 1, bar: 2 }; var p = new Proxy(target, { ownKeys: function() { return ["foo", "bar"]; } }); Object.preventExtensions(target); var keys = Object.getOwnPropertyNames(p); assert.sameValue(keys[0], "foo"); assert.sameValue(keys[1], "bar"); assert.sameValue(keys.length, 2); reportCompare(0, 0);