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