21 lines
573 B
JavaScript
21 lines
573 B
JavaScript
/*
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* Ensure Error .fileName, .lineNumber, and .stack are not directly writable,
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* but can be written using Object.defineProperty(). This matches Duktape
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* 1.3.0 and prior.
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*
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* See: https://github.com/svaarala/duktape/pull/390.
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*/
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(function () {
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var err = new Error('test');
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err.fileName = 999;
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if (err.fileName !== 999) { return; } // already non-writable
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var fn = new Function(''); // nop
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Object.defineProperties(Error.prototype, {
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fileName: { set: fn },
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lineNumber: { set: fn },
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stack: { set: fn }
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});
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})();
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