69 lines
2.1 KiB
JavaScript
69 lines
2.1 KiB
JavaScript
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'use strict';
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var $TypeError = require('es-errors/type');
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var Call = require('./Call');
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var CreateDataProperty = require('./CreateDataProperty');
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var EnumerableOwnPropertyNames = require('./EnumerableOwnPropertyNames');
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var Get = require('./Get');
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var IsArray = require('./IsArray');
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var ToLength = require('./ToLength');
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var ToString = require('./ToString');
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var Type = require('./Type');
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var forEach = require('../helpers/forEach');
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// https://262.ecma-international.org/9.0/#sec-internalizejsonproperty
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// note: `reviver` was implicitly closed-over until ES2020, where it becomes a third argument
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module.exports = function InternalizeJSONProperty(holder, name, reviver) {
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if (Type(holder) !== 'Object') {
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throw new $TypeError('Assertion failed: `holder` is not an Object');
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}
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if (typeof name !== 'string') {
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throw new $TypeError('Assertion failed: `name` is not a String');
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}
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if (typeof reviver !== 'function') {
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throw new $TypeError('Assertion failed: `reviver` is not a Function');
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}
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var val = Get(holder, name); // step 1
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if (Type(val) === 'Object') { // step 2
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var isArray = IsArray(val); // step 2.a
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if (isArray) { // step 2.b
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var I = 0; // step 2.b.i
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var len = ToLength(Get(val, 'length')); // step 2.b.ii
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while (I < len) { // step 2.b.iii
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var newElement = InternalizeJSONProperty(val, ToString(I), reviver); // step 2.b.iv.1
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if (typeof newElement === 'undefined') { // step 2.b.iii.2
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delete val[ToString(I)]; // step 2.b.iii.2.a
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} else { // step 2.b.iii.3
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CreateDataProperty(val, ToString(I), newElement); // step 2.b.iii.3.a
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}
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I += 1; // step 2.b.iii.4
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}
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} else { // step 2.c
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var keys = EnumerableOwnPropertyNames(val, 'key'); // step 2.c.i
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forEach(keys, function (P) { // step 2.c.ii
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// eslint-disable-next-line no-shadow
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var newElement = InternalizeJSONProperty(val, P, reviver); // step 2.c.ii.1
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if (typeof newElement === 'undefined') { // step 2.c.ii.2
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delete val[P]; // step 2.c.ii.2.a
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} else { // step 2.c.ii.3
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CreateDataProperty(val, P, newElement); // step 2.c.ii.3.a
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}
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});
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}
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}
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return Call(reviver, holder, [name, val]); // step 3
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};
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