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- 'use strict';
- var callBound = require('call-bind/callBound');
- var $TypeError = require('es-errors/type');
- var DeletePropertyOrThrow = require('./DeletePropertyOrThrow');
- var Get = require('./Get');
- var HasProperty = require('./HasProperty');
- var Set = require('./Set');
- var ToString = require('./ToString');
- var Type = require('./Type');
- var isAbstractClosure = require('../helpers/isAbstractClosure');
- var isInteger = require('../helpers/isInteger');
- var $push = callBound('Array.prototype.push');
- var $sort = callBound('Array.prototype.sort');
- // https://262.ecma-international.org/13.0/#sec-sortindexedproperties
- module.exports = function SortIndexedProperties(obj, len, SortCompare) {
- if (Type(obj) !== 'Object') {
- throw new $TypeError('Assertion failed: Type(obj) is not Object');
- }
- if (!isInteger(len) || len < 0) {
- throw new $TypeError('Assertion failed: `len` must be an integer >= 0');
- }
- if (!isAbstractClosure(SortCompare) || SortCompare.length !== 2) {
- throw new $TypeError('Assertion failed: `SortCompare` must be an abstract closure taking 2 arguments');
- }
- var items = []; // step 1
- var k = 0; // step 2
- while (k < len) { // step 3
- var Pk = ToString(k);
- var kPresent = HasProperty(obj, Pk);
- if (kPresent) {
- var kValue = Get(obj, Pk);
- $push(items, kValue);
- }
- k += 1;
- }
- var itemCount = items.length; // step 4
- $sort(items, SortCompare); // step 5
- var j = 0; // step 6
- while (j < itemCount) { // step 7
- Set(obj, ToString(j), items[j], true);
- j += 1;
- }
- while (j < len) { // step 8
- DeletePropertyOrThrow(obj, ToString(j));
- j += 1;
- }
- return obj; // step 9
- };
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