OLD | NEW |
(Empty) | |
| 1 // Copyright 2015 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 |
| 6 |
| 7 |
| 8 |
| 9 function toKey(x) { |
| 10 if (typeof x === "symbol") return x; |
| 11 return String(x); |
| 12 } |
| 13 |
| 14 |
| 15 const noconf = {configurable: false}; |
| 16 const noconf_nowrite = {configurable: false, writable: false}; |
| 17 |
| 18 |
| 19 var symbol = Symbol(); |
| 20 |
| 21 |
| 22 var log = []; |
| 23 var logger = {}; |
| 24 var handler = new Proxy({}, logger); |
| 25 |
| 26 logger.get = function(t, trap, r) { |
| 27 return function() { |
| 28 log.push([trap, ...arguments]); |
| 29 return Reflect[trap](...arguments); |
| 30 } |
| 31 }; |
| 32 |
| 33 |
| 34 (function Seal() { |
| 35 var target = []; |
| 36 var proxy = new Proxy(target, handler); |
| 37 log.length = 0; |
| 38 |
| 39 target.wurst = 42; |
| 40 target[0] = true; |
| 41 Object.defineProperty(target, symbol, {get: undefined}); |
| 42 |
| 43 Object.seal(proxy); |
| 44 assertEquals(6, log.length) |
| 45 for (var i in log) assertSame(target, log[i][1]); |
| 46 |
| 47 assertArrayEquals( |
| 48 ["preventExtensions", target], log[0]); |
| 49 assertArrayEquals( |
| 50 ["ownKeys", target], log[1]); |
| 51 assertArrayEquals( |
| 52 ["defineProperty", target, toKey(0), noconf], log[2]); |
| 53 assertArrayEquals( |
| 54 ["defineProperty", target, toKey("length"), noconf], log[3]); |
| 55 assertArrayEquals( |
| 56 ["defineProperty", target, toKey("wurst"), noconf], log[4]); |
| 57 assertArrayEquals( |
| 58 ["defineProperty", target, toKey(symbol), noconf], log[5]); |
| 59 })(); |
| 60 |
| 61 |
| 62 (function Freeze() { |
| 63 var target = []; |
| 64 var proxy = new Proxy(target, handler); |
| 65 log.length = 0; |
| 66 |
| 67 target.wurst = 42; |
| 68 target[0] = true; |
| 69 Object.defineProperty(target, symbol, {get: undefined}); |
| 70 |
| 71 Object.freeze(proxy); |
| 72 assertEquals(10, log.length) |
| 73 for (var i in log) assertSame(target, log[i][1]); |
| 74 |
| 75 assertArrayEquals( |
| 76 ["preventExtensions", target], log[0]); |
| 77 assertArrayEquals( |
| 78 ["ownKeys", target], log[1]); |
| 79 assertArrayEquals( |
| 80 ["getOwnPropertyDescriptor", target, toKey(0)], log[2]); |
| 81 assertArrayEquals( |
| 82 ["defineProperty", target, toKey(0), noconf_nowrite], log[3]); |
| 83 assertArrayEquals( |
| 84 ["getOwnPropertyDescriptor", target, toKey("length")], log[4]); |
| 85 assertArrayEquals( |
| 86 ["defineProperty", target, toKey("length"), noconf_nowrite], log[5]); |
| 87 assertArrayEquals( |
| 88 ["getOwnPropertyDescriptor", target, toKey("wurst")], log[6]); |
| 89 assertArrayEquals( |
| 90 ["defineProperty", target, toKey("wurst"), noconf_nowrite], log[7]); |
| 91 assertArrayEquals( |
| 92 ["getOwnPropertyDescriptor", target, toKey(symbol)], log[8]); |
| 93 assertArrayEquals( |
| 94 ["defineProperty", target, toKey(symbol), noconf], log[9]); |
| 95 })(); |
OLD | NEW |