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utf8mb4
Commit Description:
utf8mb4
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node_modules/es-abstract/helpers/isPropertyDescriptor.js
| 31 lines
| 705 B
| application/javascript
| JavascriptLexer
|
| r789 | 'use strict'; | |||
| var GetIntrinsic = require('../GetIntrinsic'); | ||||
| var has = require('has'); | ||||
| var $TypeError = GetIntrinsic('%TypeError%'); | ||||
| module.exports = function IsPropertyDescriptor(ES, Desc) { | ||||
| if (ES.Type(Desc) !== 'Object') { | ||||
| return false; | ||||
| } | ||||
| var allowed = { | ||||
| '[[Configurable]]': true, | ||||
| '[[Enumerable]]': true, | ||||
| '[[Get]]': true, | ||||
| '[[Set]]': true, | ||||
| '[[Value]]': true, | ||||
| '[[Writable]]': true | ||||
| }; | ||||
| for (var key in Desc) { // eslint-disable-line | ||||
| if (has(Desc, key) && !allowed[key]) { | ||||
| return false; | ||||
| } | ||||
| } | ||||
| if (ES.IsDataDescriptor(Desc) && ES.IsAccessorDescriptor(Desc)) { | ||||
| throw new $TypeError('Property Descriptors may not be both accessor and data descriptors'); | ||||
| } | ||||
| return true; | ||||
| }; | ||||