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// 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]. ToPropertyKey(prop)
is only called once.
Check operator is "x += y".
---*/
var propKeyEvaluated = false;
var base = {};
var prop = {
toString: function() {
assert(!propKeyEvaluated);
propKeyEvaluated = true;
return "";
}
};
var expr = function() {
return 0;
};
base[prop] += expr();
reportCompare(0, 0);
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