| 1 | 'use strict';
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| 2 |
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| 3 | var callBound = require('call-bound');
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| 4 |
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| 5 | var $TypeError = require('es-errors/type');
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| 6 | var isInteger = require('math-intrinsics/isInteger');
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| 7 | var isObject = require('es-object-atoms/isObject');
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| 8 |
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| 9 | var DeletePropertyOrThrow = require('./DeletePropertyOrThrow');
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| 10 | var Get = require('./Get');
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| 11 | var HasProperty = require('./HasProperty');
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| 12 | var Set = require('./Set');
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| 13 | var ToString = require('./ToString');
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| 14 |
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| 15 | var isAbstractClosure = require('../helpers/isAbstractClosure');
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| 16 |
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| 17 | var $sort = callBound('Array.prototype.sort');
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| 18 |
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| 19 | // https://262.ecma-international.org/13.0/#sec-sortindexedproperties
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| 20 |
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| 21 | module.exports = function SortIndexedProperties(obj, len, SortCompare) {
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| 22 | if (!isObject(obj)) {
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| 23 | throw new $TypeError('Assertion failed: Type(obj) is not Object');
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| 24 | }
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| 25 | if (!isInteger(len) || len < 0) {
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| 26 | throw new $TypeError('Assertion failed: `len` must be an integer >= 0');
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| 27 | }
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| 28 | if (!isAbstractClosure(SortCompare) || SortCompare.length !== 2) {
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| 29 | throw new $TypeError('Assertion failed: `SortCompare` must be an abstract closure taking 2 arguments');
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| 30 | }
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| 31 |
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| 32 | var items = []; // step 1
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| 33 |
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| 34 | var k = 0; // step 2
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| 35 |
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| 36 | while (k < len) { // step 3
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| 37 | var Pk = ToString(k);
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| 38 | var kPresent = HasProperty(obj, Pk);
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| 39 | if (kPresent) {
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| 40 | var kValue = Get(obj, Pk);
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| 41 | items[items.length] = kValue;
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| 42 | }
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| 43 | k += 1;
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| 44 | }
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| 45 |
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| 46 | var itemCount = items.length; // step 4
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| 47 |
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| 48 | $sort(items, SortCompare); // step 5
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| 49 |
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| 50 | var j = 0; // step 6
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| 51 |
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| 52 | while (j < itemCount) { // step 7
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| 53 | Set(obj, ToString(j), items[j], true);
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| 54 | j += 1;
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| 55 | }
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| 56 |
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| 57 | while (j < len) { // step 8
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| 58 | DeletePropertyOrThrow(obj, ToString(j));
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| 59 | j += 1;
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| 60 | }
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| 61 | return obj; // step 9
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| 62 | };
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