/// Copyright (c) 2012 Ecma International. All rights reserved. | |
/// Ecma International makes this code available under the terms and conditions set | |
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the | |
/// "Use Terms"). Any redistribution of this code must retain the above | |
/// copyright and this notice and otherwise comply with the Use Terms. | |
/** | |
* @path ch11/11.13/11.13.2/11.13.2-39-s.js | |
* @description Strict Mode - TypeError is thrown if The LeftHandSide of a Compound Assignment operator(<<=) is a reference to an accessor property with the attribute value {[[Set]]:undefined} | |
* @onlyStrict | |
*/ | |
function testcase() { | |
"use strict"; | |
var obj = {}; | |
Object.defineProperty(obj, "prop", { | |
get: function () { | |
return 11; | |
}, | |
set: undefined, | |
enumerable: true, | |
configurable: true | |
}); | |
try { | |
obj.prop <<= 20; | |
return false; | |
} catch (e) { | |
return e instanceof TypeError && obj.prop === 11; | |
} | |
} | |
runTestCase(testcase); |