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39 lines
989 B
39 lines
989 B
'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://ecma-international.org/ecma-262/6.0/#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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