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- 'use strict';
- var hasOwn = require('hasown');
- // accessor descriptor properties
- var accessor = {
- __proto__: null,
- configurable: 'boolean',
- enumerable: 'boolean',
- get: 'function',
- set: 'function'
- };
- module.exports = function isAccessorDescriptor(obj, prop) {
- if (typeof prop === 'string') {
- var val = Object.getOwnPropertyDescriptor(obj, prop);
- return typeof val !== 'undefined';
- }
- if (!obj || typeof obj !== 'object') {
- return false;
- }
- if (hasOwn(obj, 'value') || hasOwn(obj, 'writable')) {
- return false;
- }
- // one of them must be a function
- if (
- (!hasOwn(obj, 'get') || typeof obj.get !== 'function')
- && (!hasOwn(obj, 'set') || typeof obj.set !== 'function')
- ) {
- return false;
- }
- // both of them must be a function or undefined
- if (
- (hasOwn(obj, 'get') && typeof obj.get !== 'function' && typeof obj.get !== 'undefined')
- || (hasOwn(obj, 'set') && typeof obj.set !== 'function' && typeof obj.set !== 'undefined')
- ) {
- return false;
- }
- for (var key in obj) { // eslint-disable-line no-restricted-syntax
- if (hasOwn(obj, key) && hasOwn(accessor, key) && typeof obj[key] !== accessor[key] && typeof obj[key] !== 'undefined') {
- return false;
- }
- }
- return true;
- };
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