| 'use strict'; |
| var $ = require('../internals/export'); |
| var lengthOfArrayLike = require('../internals/length-of-array-like'); |
| var toIntegerOrInfinity = require('../internals/to-integer-or-infinity'); |
| var toIndexedObject = require('../internals/to-indexed-object'); |
| var createProperty = require('../internals/create-property'); |
|
|
| var $Array = Array; |
| var $RangeError = RangeError; |
|
|
| |
| var INCORRECT_EXCEPTION_ON_COERCION_FAIL = (function () { |
| try { |
| |
| []['with']({ valueOf: function () { throw 4; } }, null); |
| } catch (error) { |
| return error !== 4; |
| } |
| })(); |
|
|
| |
| |
| $({ target: 'Array', proto: true, forced: INCORRECT_EXCEPTION_ON_COERCION_FAIL }, { |
| 'with': function (index, value) { |
| var O = toIndexedObject(this); |
| var len = lengthOfArrayLike(O); |
| var relativeIndex = toIntegerOrInfinity(index); |
| var actualIndex = relativeIndex < 0 ? len + relativeIndex : relativeIndex; |
| if (actualIndex >= len || actualIndex < 0) throw new $RangeError('Incorrect index'); |
| var A = new $Array(len); |
| var k = 0; |
| for (; k < len; k++) createProperty(A, k, k === actualIndex ? value : O[k]); |
| return A; |
| } |
| }); |
|
|