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| 1 // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --harmony-proxies --harmony-reflect --allow-natives-syntax |
| 6 |
| 7 |
| 8 var symbol = %CreatePrivateSymbol("private"); |
| 9 |
| 10 |
| 11 // Private symbols must never be listed. |
| 12 |
| 13 var object = {}; |
| 14 object[symbol] = 42; |
| 15 for (var key of Object.keys(object)) assertUnreachable(); |
| 16 for (var key of Object.getOwnPropertySymbols(object)) assertUnreachable(); |
| 17 for (var key of Object.getOwnPropertyNames(object)) assertUnreachable(); |
| 18 for (var key of Reflect.ownKeys(object)) assertUnreachable(); |
| 19 for (var key of Reflect.enumerate(object)) assertUnreachable(); |
| 20 for (var key in object) assertUnreachable(); |
| 21 |
| 22 var object2 = {__proto__: object}; |
| 23 for (var key of Object.keys(object2)) assertUnreachable(); |
| 24 for (var key of Object.getOwnPropertySymbols(object2)) assertUnreachable(); |
| 25 for (var key of Object.getOwnPropertyNames(object2)) assertUnreachable(); |
| 26 for (var key of Reflect.ownKeys(object2)) assertUnreachable(); |
| 27 for (var key of Reflect.enumerate(object2)) assertUnreachable(); |
| 28 for (var key in object2) assertUnreachable(); |
| 29 |
| 30 |
| 31 // Private symbols must never leak to proxy traps. |
| 32 |
| 33 var proxy = new Proxy({}, new Proxy({}, {get() {return () => {throw 666}}})); |
| 34 var object = {__proto__: proxy}; |
| 35 |
| 36 // [[Set]] |
| 37 assertEquals(42, proxy[symbol] = 42); |
| 38 assertThrows(function() { "use strict"; proxy[symbol] = 42 }, TypeError); |
| 39 assertEquals(false, Reflect.set(proxy, symbol, 42)); |
| 40 assertEquals(42, object[symbol] = 42); |
| 41 assertEquals(43, (function() {"use strict"; return object[symbol] = 43})()); |
| 42 assertEquals(true, Reflect.set(object, symbol, 44)); |
| 43 |
| 44 // [[DefineOwnProperty]] |
| 45 assertEquals(false, Reflect.defineProperty(proxy, symbol, {})); |
| 46 assertThrows(() => Object.defineProperty(proxy, symbol, {}), TypeError); |
| 47 assertEquals(true, Reflect.defineProperty(object, symbol, {})); |
| 48 assertEquals(object, Object.defineProperty(object, symbol, {})); |
| 49 |
| 50 // [[Delete]] |
| 51 assertEquals(true, delete proxy[symbol]); |
| 52 assertEquals(true, (function() {"use strict"; return delete proxy[symbol]})()); |
| 53 assertEquals(true, Reflect.deleteProperty(proxy, symbol)); |
| 54 assertEquals(true, delete object[symbol]); |
| 55 assertEquals(true, (function() {"use strict"; return delete object[symbol]})()); |
| 56 assertEquals(true, Reflect.deleteProperty(object, symbol)); |
| 57 |
| 58 // [[GetOwnPropertyDescriptor]] |
| 59 assertEquals(undefined, Object.getOwnPropertyDescriptor(proxy, symbol)); |
| 60 assertEquals(undefined, Reflect.getOwnPropertyDescriptor(proxy, symbol)); |
| 61 assertFalse(Object.prototype.hasOwnProperty.call(proxy, symbol)); |
| 62 assertEquals(undefined, Object.getOwnPropertyDescriptor(object, symbol)); |
| 63 assertEquals(undefined, Reflect.getOwnPropertyDescriptor(object, symbol)); |
| 64 assertFalse(Object.prototype.hasOwnProperty.call(object, symbol)); |
| 65 |
| 66 // [[Has]] |
| 67 assertFalse(symbol in proxy); |
| 68 assertFalse(Reflect.has(proxy, symbol)); |
| 69 assertFalse(symbol in object); |
| 70 assertFalse(Reflect.has(object, symbol)); |
| 71 |
| 72 // [[Get]] |
| 73 assertEquals(undefined, proxy[symbol]); |
| 74 assertEquals(undefined, Reflect.get(proxy, symbol)); |
| 75 assertEquals(undefined, Reflect.get(proxy, symbol, 42)); |
| 76 assertEquals(undefined, object[symbol]); |
| 77 assertEquals(undefined, Reflect.get(object, symbol)); |
| 78 assertEquals(undefined, Reflect.get(object, symbol, 42)); |
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