// Copyright (C) 2015 André Bargull. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- info: Compound Assignment Operator evaluates its operands from left to right. description: > The left-hand side expression is evaluated before the right-hand side. Left-hand side expression is MemberExpression: base[prop]. Evaluating ToPropertyKey(prop) throws an error. Check operator is "x /= y". ---*/ function DummyError() { } assert.throws(DummyError, function() { var base = {}; var prop = { toString: function() { throw new DummyError(); } }; var expr = function() { $ERROR("right-hand side expression evaluated"); }; base[prop] /= expr(); });