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32 lines
752 B
JavaScript
32 lines
752 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* ES6 20140718 draft 19.5.3.4. */
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function ErrorToString()
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{
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/* Steps 1-2. */
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var obj = this;
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if (!IsObject(obj))
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ThrowTypeError(JSMSG_INCOMPATIBLE_PROTO, "Error", "toString", "value");
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/* Steps 3-5. */
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var name = obj.name;
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name = (name === undefined) ? "Error" : ToString(name);
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/* Steps 6-8. */
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var msg = obj.message;
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msg = (msg === undefined) ? "" : ToString(msg);
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/* Step 9. */
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if (name === "")
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return msg;
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/* Step 10. */
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if (msg === "")
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return name;
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/* Step 11. */
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return name + ": " + msg;
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}
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