// Copyright 2016 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. // Flags: --harmony-proxies --harmony-reflect --allow-natives-syntax var symbol = %CreatePrivateSymbol("private"); // Private symbols must never be listed. var object = {}; object[symbol] = 42; for (var key of Object.keys(object)) assertUnreachable(); for (var key of Object.getOwnPropertySymbols(object)) assertUnreachable(); for (var key of Object.getOwnPropertyNames(object)) assertUnreachable(); for (var key of Reflect.ownKeys(object)) assertUnreachable(); for (var key of Reflect.enumerate(object)) assertUnreachable(); for (var key in object) assertUnreachable(); var object2 = {__proto__: object}; for (var key of Object.keys(object2)) assertUnreachable(); for (var key of Object.getOwnPropertySymbols(object2)) assertUnreachable(); for (var key of Object.getOwnPropertyNames(object2)) assertUnreachable(); for (var key of Reflect.ownKeys(object2)) assertUnreachable(); for (var key of Reflect.enumerate(object2)) assertUnreachable(); for (var key in object2) assertUnreachable(); // Private symbols must never leak to proxy traps. var proxy = new Proxy({}, new Proxy({}, {get() {return () => {throw 666}}})); var object = {__proto__: proxy}; // [[Set]] assertEquals(42, proxy[symbol] = 42); assertThrows(function() { "use strict"; proxy[symbol] = 42 }, TypeError); assertEquals(false, Reflect.set(proxy, symbol, 42)); assertEquals(42, object[symbol] = 42); assertEquals(43, (function() {"use strict"; return object[symbol] = 43})()); assertEquals(true, Reflect.set(object, symbol, 44)); // [[DefineOwnProperty]] assertEquals(false, Reflect.defineProperty(proxy, symbol, {})); assertThrows(() => Object.defineProperty(proxy, symbol, {}), TypeError); assertEquals(true, Reflect.defineProperty(object, symbol, {})); assertEquals(object, Object.defineProperty(object, symbol, {})); // [[Delete]] assertEquals(true, delete proxy[symbol]); assertEquals(true, (function() {"use strict"; return delete proxy[symbol]})()); assertEquals(true, Reflect.deleteProperty(proxy, symbol)); assertEquals(true, delete object[symbol]); assertEquals(true, (function() {"use strict"; return delete object[symbol]})()); assertEquals(true, Reflect.deleteProperty(object, symbol)); // [[GetOwnPropertyDescriptor]] assertEquals(undefined, Object.getOwnPropertyDescriptor(proxy, symbol)); assertEquals(undefined, Reflect.getOwnPropertyDescriptor(proxy, symbol)); assertFalse(Object.prototype.hasOwnProperty.call(proxy, symbol)); assertEquals(undefined, Object.getOwnPropertyDescriptor(object, symbol)); assertEquals(undefined, Reflect.getOwnPropertyDescriptor(object, symbol)); assertFalse(Object.prototype.hasOwnProperty.call(object, symbol)); // [[Has]] assertFalse(symbol in proxy); assertFalse(Reflect.has(proxy, symbol)); assertFalse(symbol in object); assertFalse(Reflect.has(object, symbol)); // [[Get]] assertEquals(undefined, proxy[symbol]); assertEquals(undefined, Reflect.get(proxy, symbol)); assertEquals(undefined, Reflect.get(proxy, symbol, 42)); assertEquals(undefined, object[symbol]); assertEquals(undefined, Reflect.get(object, symbol)); assertEquals(undefined, Reflect.get(object, symbol, 42));