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1 /// Copyright (c) 2012 Ecma International. All rights reserved. |
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2 /// Ecma International makes this code available under the terms and conditions set |
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3 /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the |
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4 /// "Use Terms"). Any redistribution of this code must retain the above |
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5 /// copyright and this notice and otherwise comply with the Use Terms. |
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6 /** |
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7 * @path ch13/13.2/13.2-17-1.js |
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8 * @description Function Object has 'constructor' as its own property, it is not enumerable and does not invoke the setter defined on Function.prototype.constructor (Step 17) |
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9 */ |
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10 |
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11 |
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12 function testcase() { |
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13 var desc = Object.getOwnPropertyDescriptor(Object.prototype, "constructor"); |
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14 try { |
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15 var getFunc = function () { |
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16 return 100; |
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17 }; |
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18 |
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19 var data = "data"; |
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20 var setFunc = function (value) { |
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21 data = value; |
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22 }; |
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23 |
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24 Object.defineProperty(Object.prototype, "constructor", { |
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25 get: getFunc, |
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26 set: setFunc, |
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27 configurable: true |
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28 }); |
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29 |
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30 var fun = function () {}; |
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31 |
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32 var verifyValue = false; |
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33 verifyValue = typeof fun.prototype.constructor === "function"; |
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34 |
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35 var verifyEnumerable = false; |
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36 for (var p in fun.prototype) { |
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37 if (p === "constructor" && fun.prototype.hasOwnProperty("constructor")) { |
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38 verifyEnumerable = true; |
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39 } |
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40 } |
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41 |
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42 var verifyWritable = false; |
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43 fun.prototype.constructor = 12; |
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44 verifyWritable = (fun.prototype.constructor === 12); |
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45 |
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46 var verifyConfigurable = false; |
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47 delete fun.prototype.constructor; |
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48 verifyConfigurable = fun.hasOwnProperty("constructor"); |
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49 |
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50 return verifyValue && verifyWritable && !verifyEnumerable && !verifyConfigurable && data === "data"; |
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51 } finally { |
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52 Object.defineProperty(Object.prototype, "constructor", desc); |
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53 } |
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54 } |
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55 runTestCase(testcase); |