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34 lines
533 B
34 lines
533 B
'use strict';
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var result = require('./')();
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var test = {
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__proto__: null,
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foo: {}
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};
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var setter = require('dunder-proto/set');
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/** @type {import('./mutator')} */
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module.exports = function hasMutator() {
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if (!result) {
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return false;
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}
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var obj = { __proto__: test };
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// @ts-expect-error: TS errors on an inherited property for some reason
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if (obj.foo !== test.foo) {
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return false;
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}
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if (!setter) {
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return false;
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}
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setter(obj, null);
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if ('foo' in obj || 'toString' in obj) {
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return false;
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}
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return true;
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};
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