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