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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-object-values-entries --harmony-proxies --harmony-reflect |
| 6 |
| 7 function TestMeta() { |
| 8 assertEquals(1, Object.entries.length); |
| 9 assertEquals(Function.prototype, Object.getPrototypeOf(Object.entries)); |
| 10 } |
| 11 TestMeta(); |
| 12 |
| 13 |
| 14 function TestBasic() { |
| 15 var x = 16; |
| 16 var O = { |
| 17 d: 1, |
| 18 c: 3, |
| 19 [Symbol.iterator]: void 0, |
| 20 0: 123, |
| 21 1000: 456, |
| 22 [x * x]: "ducks", |
| 23 [`0x${(x * x).toString(16)}`]: "quack" |
| 24 }; |
| 25 O.a = 2; |
| 26 O.b = 4; |
| 27 Object.defineProperty(O, "HIDDEN", { enumerable: false, value: NaN }); |
| 28 assertEquals([ |
| 29 ["0", 123], |
| 30 ["256", "ducks"], |
| 31 ["1000", 456], |
| 32 ["d", 1], |
| 33 ["c", 3], |
| 34 ["0x100", "quack"], |
| 35 ["a", 2], |
| 36 ["b", 4] |
| 37 ], Object.entries(O)); |
| 38 assertEquals(Object.entries(O), Object.keys(O).map(key => [key, O[key]])); |
| 39 } |
| 40 TestBasic(); |
| 41 |
| 42 |
| 43 function TestOrder() { |
| 44 var O = { |
| 45 a: 1, |
| 46 [Symbol.iterator]: null |
| 47 }; |
| 48 O[456] = 123; |
| 49 Object.defineProperty(O, "HIDDEN", { enumerable: false, value: NaN }); |
| 50 |
| 51 var log = []; |
| 52 var P = new Proxy(O, { |
| 53 ownKeys(target) { |
| 54 log.push("[[OwnPropertyKeys]]"); |
| 55 return Reflect.ownKeys(target); |
| 56 }, |
| 57 get(target, name) { |
| 58 log.push(`[[Get]](${JSON.stringify(name)})`); |
| 59 return Reflect.get(target, name); |
| 60 }, |
| 61 set(target, name, value) { |
| 62 assertUnreachable(); |
| 63 } |
| 64 }); |
| 65 |
| 66 assertEquals([["456", 123], ["a", 1]], Object.entries(P)); |
| 67 assertEquals([ |
| 68 "[[OwnPropertyKeys]]", |
| 69 "[[Get]](\"456\")", |
| 70 "[[Get]](\"a\")" |
| 71 ], log); |
| 72 } |
| 73 TestOrder(); |
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