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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 ch11/11.13/11.13.2/11.13.2-30-s.js |
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8 * @description Strict Mode - TypeError is thrown if The LeftHandSide of a Compound Assignment operator(>>>=) is a reference to a data property with the attribute value {[[Writable]]:false} |
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9 * @onlyStrict |
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10 */ |
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11 |
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12 |
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13 function testcase() { |
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14 "use strict"; |
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15 var obj = {}; |
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16 Object.defineProperty(obj, "prop", { |
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17 value: 10, |
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18 writable: false, |
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19 enumerable: true, |
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20 configurable: true |
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21 }); |
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22 |
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23 try { |
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24 obj.prop >>>= 20; |
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25 return false; |
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26 } catch (e) { |
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27 return e instanceof TypeError && obj.prop === 10; |
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28 } |
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29 } |
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30 runTestCase(testcase); |