1 | 'use strict';
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2 |
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3 | var $TypeError = require('es-errors/type');
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4 |
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5 | var Call = require('./Call');
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6 | var CreateDataProperty = require('./CreateDataProperty');
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7 | var EnumerableOwnNames = require('./EnumerableOwnNames');
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8 | var Get = require('./Get');
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9 | var IsArray = require('./IsArray');
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10 | var ToLength = require('./ToLength');
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11 | var ToString = require('./ToString');
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12 | var Type = require('./Type');
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13 |
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14 | var forEach = require('../helpers/forEach');
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15 |
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16 | // https://262.ecma-international.org/6.0/#sec-internalizejsonproperty
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17 |
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18 | // note: `reviver` was implicitly closed-over until ES2020, where it becomes a third argument
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19 |
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20 | module.exports = function InternalizeJSONProperty(holder, name, reviver) {
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21 | if (Type(holder) !== 'Object') {
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22 | throw new $TypeError('Assertion failed: `holder` is not an Object');
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23 | }
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24 | if (typeof name !== 'string') {
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25 | throw new $TypeError('Assertion failed: `name` is not a String');
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26 | }
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27 | if (typeof reviver !== 'function') {
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28 | throw new $TypeError('Assertion failed: `reviver` is not a Function');
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29 | }
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30 |
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31 | var val = Get(holder, name); // step 1
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32 |
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33 | if (Type(val) === 'Object') { // step 3
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34 | var isArray = IsArray(val); // step 3.a
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35 | if (isArray) { // step 3.c
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36 | var I = 0; // step 3.c.i
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37 |
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38 | var len = ToLength(Get(val, 'length')); // step 3.b.ii
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39 |
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40 | while (I < len) { // step 3.b.iv
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41 | var newElement = InternalizeJSONProperty(val, ToString(I), reviver); // step 3.b.iv.1
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42 |
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43 | if (typeof newElement === 'undefined') { // step 3.b.iv.3
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44 | delete val[ToString(I)]; // step 3.b.iv.3.a
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45 | } else { // step 3.b.iv.4
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46 | CreateDataProperty(val, ToString(I), newElement); // step 3.b.iv.4.a
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47 | }
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48 |
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49 | I += 1; // step 3.b.iv.6
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50 | }
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51 | } else {
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52 | var keys = EnumerableOwnNames(val); // step 3.d.i
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53 |
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54 | forEach(keys, function (P) { // step 3.d.iii
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55 | // eslint-disable-next-line no-shadow
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56 | var newElement = InternalizeJSONProperty(val, P, reviver); // step 3.d.iii.1
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57 |
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58 | if (typeof newElement === 'undefined') { // step 3.d.iii.3
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59 | delete val[P]; // step 3.d.iii.3.a
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60 | } else { // step 3.d.iii.4
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61 | CreateDataProperty(val, P, newElement); // step 3.d.iii.4.a
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62 | }
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63 | });
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64 | }
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65 | }
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66 |
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67 | return Call(reviver, holder, [name, val]); // step 4
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68 | };
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