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42 lines
1.5 KiB
42 lines
1.5 KiB
4 weeks ago
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'use strict';
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var $ = require('../internals/export');
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var globalThis = require('../internals/global-this');
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var defineBuiltInAccessor = require('../internals/define-built-in-accessor');
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var DESCRIPTORS = require('../internals/descriptors');
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var $TypeError = TypeError;
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// eslint-disable-next-line es/no-object-defineproperty -- safe
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var defineProperty = Object.defineProperty;
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var INCORRECT_VALUE = globalThis.self !== globalThis;
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// `self` getter
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// https://html.spec.whatwg.org/multipage/window-object.html#dom-self
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try {
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if (DESCRIPTORS) {
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// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
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var descriptor = Object.getOwnPropertyDescriptor(globalThis, 'self');
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// some engines have `self`, but with incorrect descriptor
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// https://github.com/denoland/deno/issues/15765
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if (INCORRECT_VALUE || !descriptor || !descriptor.get || !descriptor.enumerable) {
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defineBuiltInAccessor(globalThis, 'self', {
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get: function self() {
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return globalThis;
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},
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set: function self(value) {
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if (this !== globalThis) throw new $TypeError('Illegal invocation');
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defineProperty(globalThis, 'self', {
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value: value,
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writable: true,
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configurable: true,
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enumerable: true
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});
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},
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configurable: true,
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enumerable: true
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});
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}
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} else $({ global: true, simple: true, forced: INCORRECT_VALUE }, {
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self: globalThis
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});
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} catch (error) { /* empty */ }
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