// Copyright (C) 2018 André Bargull. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-array.prototype.map description: > Non-writable properties are overwritten by CreateDataPropertyOrThrow. info: | 22.1.3.16 Array.prototype.map ( callbackfn [ , thisArg ] ) ... 7. Repeat, while k < len ... c. If kPresent is true, then ... iii. Perform ? CreateDataPropertyOrThrow(A, Pk, mappedValue). ... features: [Symbol.species] includes: [propertyHelper.js] ---*/ var a = [1]; a.constructor = {}; a.constructor[Symbol.species] = function(len) { var q = new Array(0); Object.defineProperty(q, 0, { value: 0, writable: false, configurable: true, enumerable: false, }); return q; }; var r = a.map(function(){ return 2; }); verifyProperty(r, 0, { value: 2, writable: true, configurable: true, enumerable: true, }); reportCompare(0, 0);