test/language/expressions/compound-assignment/11.13.2-6-17-s.js


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// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es5id: 11.13.2-6-17-s
description: >
    Strict Mode - SyntaxError is thrown if the identifier arguments
    appear as the LeftHandSideExpression of a Compound Assignment
    operator(<<=)
flags: [onlyStrict]
includes: [runTestCase.js]
---*/

function testcase() {
        var blah = arguments;
        try {
            eval("arguments <<= 20;");
            return false;
        } catch (e) {
            return e instanceof SyntaxError && blah === arguments;
        }
    }
runTestCase(testcase);