20 lines
905 B
JavaScript
20 lines
905 B
JavaScript
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/*
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* Ensure Error .fileName, .lineNumber, and .stack are directly writable
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* without having to use Object.defineProperty(). This matches Duktape
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* 1.4.0 behavior.
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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 writable
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Object.defineProperties(Error.prototype, {
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fileName: { set: new Function('v', 'Object.defineProperty(this, "fileName", { value: v, writable: true, enumerable: false, configurable: true });') },
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lineNumber: { set: new Function('v', 'Object.defineProperty(this, "lineNumber", { value: v, writable: true, enumerable: false, configurable: true });') },
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stack: { set: new Function('v', 'Object.defineProperty(this, "stack", { value: v, writable: true, enumerable: false, configurable: true });') },
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});
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})();
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