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comparison: js/src/tests/ecma_5/extensions/destructuring-for-inof-__proto__.js
js/src/tests/ecma_5/extensions/destructuring-for-inof-__proto__.js
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| -1:000000000000 | 0:70a50a884fd0 |
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| 1 /* | |
| 2 * Any copyright is dedicated to the Public Domain. | |
| 3 * http://creativecommons.org/licenses/publicdomain/ | |
| 4 */ | |
| 5 | |
| 6 var gTestfile = 'destructuring-for-inof-__proto__.js'; | |
| 7 var BUGNUMBER = 963641; | |
| 8 var summary = | |
| 9 "__proto__ should work in destructuring patterns as the targets of " + | |
| 10 "for-in/for-of loops"; | |
| 11 | |
| 12 print(BUGNUMBER + ": " + summary); | |
| 13 | |
| 14 /************** | |
| 15 * BEGIN TEST * | |
| 16 **************/ | |
| 17 | |
| 18 function objectWithProtoProperty(v) | |
| 19 { | |
| 20 var obj = {}; | |
| 21 return Object.defineProperty(obj, "__proto__", | |
| 22 { | |
| 23 enumerable: true, | |
| 24 configurable: true, | |
| 25 writable: true, | |
| 26 value: v | |
| 27 }); | |
| 28 } | |
| 29 | |
| 30 function* objectWithProtoGenerator(v) | |
| 31 { | |
| 32 yield objectWithProtoProperty(v); | |
| 33 } | |
| 34 | |
| 35 function* identityGenerator(v) | |
| 36 { | |
| 37 yield v; | |
| 38 } | |
| 39 | |
| 40 for (var { __proto__: target } of objectWithProtoGenerator(null)) | |
| 41 assertEq(target, null); | |
| 42 | |
| 43 for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt")) | |
| 44 assertEq(target, "aacchhorrt"); | |
| 45 | |
| 46 for ({ __proto__: target } of identityGenerator(42)) | |
| 47 assertEq(target, Number.prototype); | |
| 48 | |
| 49 for (var { __proto__: target } in { prop: "kneedle" }) | |
| 50 assertEq(target, String.prototype); | |
| 51 | |
| 52 for ({ __proto__: target } in { prop: "snork" }) | |
| 53 assertEq(target, String.prototype); | |
| 54 | |
| 55 for ({ __proto__: target } in { prop: "ohia" }) | |
| 56 assertEq(target, String.prototype); | |
| 57 | |
| 58 function nested() | |
| 59 { | |
| 60 for (var { __proto__: target } of objectWithProtoGenerator(null)) | |
| 61 assertEq(target, null); | |
| 62 | |
| 63 for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt")) | |
| 64 assertEq(target, "aacchhorrt"); | |
| 65 | |
| 66 for ({ __proto__: target } of identityGenerator(42)) | |
| 67 assertEq(target, Number.prototype); | |
| 68 | |
| 69 for (var { __proto__: target } in { prop: "kneedle" }) | |
| 70 assertEq(target, String.prototype); | |
| 71 | |
| 72 for ({ __proto__: target } in { prop: "snork" }) | |
| 73 assertEq(target, String.prototype); | |
| 74 | |
| 75 for ({ __proto__: target } in { prop: "ohia" }) | |
| 76 assertEq(target, String.prototype); | |
| 77 } | |
| 78 nested(); | |
| 79 | |
| 80 /******************************************************************************/ | |
| 81 | |
| 82 if (typeof reportCompare === "function") | |
| 83 reportCompare(true, true); | |
| 84 | |
| 85 print("Tests complete"); |
