[ceph.git] / ceph / src / civetweb / src / third_party / duktape-1.8.0 / polyfills / duktape-error-setter-nonwritable.js

/*
 *  Ensure Error .fileName, .lineNumber, and .stack are not directly writable,
 *  but can be written using Object.defineProperty().  This matches Duktape
 *  1.3.0 and prior.
 *
 *  See: https://github.com/svaarala/duktape/pull/390.
 */

(function () {
    var err = new Error('test');
    err.fileName = 999;
    if (err.fileName !== 999) { return; }  // already non-writable

    var fn = new Function('');  // nop
    Object.defineProperties(Error.prototype, {
        fileName: { set: fn },
        lineNumber: { set: fn },
        stack: { set: fn }
    });
})();
Commit	Line	Data
11fdf7f2 TL	1	/*
	2	* Ensure Error .fileName, .lineNumber, and .stack are not directly writable,
	3	* but can be written using Object.defineProperty(). This matches Duktape
	4	* 1.3.0 and prior.
	5	*
	6	* See: https://github.com/svaarala/duktape/pull/390.
	7	*/
	8
	9	(function () {
	10	var err = new Error('test');
	11	err.fileName = 999;
	12	if (err.fileName !== 999) { return; } // already non-writable
	13
	14	var fn = new Function(''); // nop
	15	Object.defineProperties(Error.prototype, {
	16	fileName: { set: fn },
	17	lineNumber: { set: fn },
	18	stack: { set: fn }
	19	});
	20	})();