1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768 |
- 'use strict';
- var $TypeError = require('es-errors/type');
- var Call = require('./Call');
- var CreateDataProperty = require('./CreateDataProperty');
- var EnumerableOwnProperties = require('./EnumerableOwnProperties');
- var Get = require('./Get');
- var IsArray = require('./IsArray');
- var LengthOfArrayLike = require('./LengthOfArrayLike');
- var ToString = require('./ToString');
- var Type = require('./Type');
- var forEach = require('../helpers/forEach');
- // https://262.ecma-international.org/14.0/#sec-internalizejsonproperty
- // note: `reviver` was implicitly closed-over until ES2020, where it becomes a third argument
- module.exports = function InternalizeJSONProperty(holder, name, reviver) {
- if (Type(holder) !== 'Object') {
- throw new $TypeError('Assertion failed: `holder` is not an Object');
- }
- if (typeof name !== 'string') {
- throw new $TypeError('Assertion failed: `name` is not a String');
- }
- if (typeof reviver !== 'function') {
- throw new $TypeError('Assertion failed: `reviver` is not a Function');
- }
- var val = Get(holder, name); // step 1
- if (Type(val) === 'Object') { // step 2
- var isArray = IsArray(val); // step 2.a
- if (isArray) { // step 2.b
- var I = 0; // step 2.b.i
- var len = LengthOfArrayLike(val, 'length'); // step 2.b.ii
- while (I < len) { // step 2.b.iii
- var newElement = InternalizeJSONProperty(val, ToString(I), reviver); // step 2.b.iv.1
- if (typeof newElement === 'undefined') { // step 2.b.iii.2
- delete val[ToString(I)]; // step 2.b.iii.2.a
- } else { // step 2.b.iii.3
- CreateDataProperty(val, ToString(I), newElement); // step 2.b.iii.3.a
- }
- I += 1; // step 2.b.iii.4
- }
- } else { // step 2.c
- var keys = EnumerableOwnProperties(val, 'key'); // step 2.c.i
- forEach(keys, function (P) { // step 2.c.ii
- // eslint-disable-next-line no-shadow
- var newElement = InternalizeJSONProperty(val, P, reviver); // step 2.c.ii.1
- if (typeof newElement === 'undefined') { // step 2.c.ii.2
- delete val[P]; // step 2.c.ii.2.a
- } else { // step 2.c.ii.3
- CreateDataProperty(val, P, newElement); // step 2.c.ii.3.a
- }
- });
- }
- }
- return Call(reviver, holder, [name, val]); // step 3
- };
|