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35 lines
1.2 KiB
35 lines
1.2 KiB
'use strict'; |
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var callBind = require('call-bind-apply-helpers'); |
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var gOPD = require('gopd'); |
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var $TypeError = require('es-errors/type'); |
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/** @type {{ __proto__?: object | null }} */ |
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var obj = {}; |
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try { |
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obj.__proto__ = null; // eslint-disable-line no-proto |
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} catch (e) { |
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if (!e || typeof e !== 'object' || !('code' in e) || e.code !== 'ERR_PROTO_ACCESS') { |
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throw e; |
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} |
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} |
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var hasProtoMutator = !('toString' in obj); |
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// eslint-disable-next-line no-extra-parens |
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var desc = gOPD && gOPD(Object.prototype, /** @type {keyof typeof Object.prototype} */ ('__proto__')); |
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/** @type {import('./set')} */ |
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module.exports = hasProtoMutator && ( |
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// eslint-disable-next-line no-extra-parens |
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(!!desc && typeof desc.set === 'function' && /** @type {import('./set')} */ (callBind([desc.set]))) |
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|| /** @type {import('./set')} */ function setDunder(object, proto) { |
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// this is node v0.10 or older, which doesn't have Object.setPrototypeOf and has undeniable __proto__ |
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if (object == null) { // eslint-disable-line eqeqeq |
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throw new $TypeError('set Object.prototype.__proto__ called on null or undefined'); |
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} |
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// eslint-disable-next-line no-proto, no-param-reassign, no-extra-parens |
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/** @type {{ __proto__?: object | null }} */ (object).__proto__ = proto; |
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return proto; |
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} |
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);
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