// Copyright (C) 2020 Alexey Shvayka. 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 "ownKeys" trap is null or undefined, [[OwnPropertyKeys]] call is properly forwarded to [[ProxyTarget]] (which is also a Proxy object). info: | [[OwnPropertyKeys]] ( ) [...] 4. Let target be O.[[ProxyTarget]]. 5. Let trap be ? GetMethod(handler, "ownKeys"). 6. If trap is undefined, then a. Return ? target.[[OwnPropertyKeys]](). OrdinaryOwnPropertyKeys ( O ) 1. Let keys be a new empty List. 2. For each own property key P of O that is an array index, in ascending numeric index order, do a. Add P as the last element of keys. 3. For each own property key P of O that is a String but is not an array index, in ascending chronological order of property creation, do a. Add P as the last element of keys. [...] 5. Return keys. includes: [compareArray.js] features: [Proxy] ---*/ var plainObject = { foo: 1, "0": 2, get bar() {}, "1": 4, }; var plainObjectTarget = new Proxy(plainObject, {}); var plainObjectProxy = new Proxy(plainObjectTarget, { ownKeys: null, }); assert.compareArray( Object.keys(plainObjectProxy), ["0", "1", "foo", "bar"] ); reportCompare(0, 0);