40 lines
984 B
JavaScript
40 lines
984 B
JavaScript
'use strict';
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var has = require('has');
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var assertRecord = require('../helpers/assertRecord');
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var IsDataDescriptor = require('./IsDataDescriptor');
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var IsGenericDescriptor = require('./IsGenericDescriptor');
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var Type = require('./Type');
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// https://262.ecma-international.org/6.0/#sec-completepropertydescriptor
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module.exports = function CompletePropertyDescriptor(Desc) {
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/* eslint no-param-reassign: 0 */
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assertRecord(Type, 'Property Descriptor', 'Desc', Desc);
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if (IsGenericDescriptor(Desc) || IsDataDescriptor(Desc)) {
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if (!has(Desc, '[[Value]]')) {
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Desc['[[Value]]'] = void 0;
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}
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if (!has(Desc, '[[Writable]]')) {
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Desc['[[Writable]]'] = false;
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}
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} else {
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if (!has(Desc, '[[Get]]')) {
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Desc['[[Get]]'] = void 0;
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}
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if (!has(Desc, '[[Set]]')) {
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Desc['[[Set]]'] = void 0;
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}
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}
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if (!has(Desc, '[[Enumerable]]')) {
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Desc['[[Enumerable]]'] = false;
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}
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if (!has(Desc, '[[Configurable]]')) {
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Desc['[[Configurable]]'] = false;
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}
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return Desc;
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};
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