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- 'use strict';
- var callBound = require('call-bind/callBound');
- var $TypeError = require('es-errors/type');
- var Get = require('./Get');
- var HasProperty = require('./HasProperty');
- 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/14.0/#sec-sortindexedproperties
- module.exports = function SortIndexedProperties(obj, len, SortCompare, holes) {
- 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');
- }
- if (holes !== 'skip-holes' && holes !== 'read-through-holes') {
- throw new $TypeError('Assertion failed: `holes` must be either `skip-holes` or `read-through-holes`');
- }
- var items = []; // step 1
- var k = 0; // step 2
- while (k < len) { // step 3
- var Pk = ToString(k);
- var kRead = holes === 'skip-holes' ? HasProperty(obj, Pk) : true; // step 3.b - 3.c
- if (kRead) { // step 3.d
- var kValue = Get(obj, Pk);
- $push(items, kValue);
- }
- k += 1; // step 3.e
- }
- $sort(items, SortCompare); // step 4
- return items; // step 5
- };
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