文件操作 - web.self.js

文件: /usr/share/nodejs/core-js/modules/web.self.js

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'use strict';
var $ = require('../internals/export');
var global = require('../internals/global');
var defineBuiltInAccessor = require('../internals/define-built-in-accessor');
var DESCRIPTORS = require('../internals/descriptors');

var $TypeError = TypeError;
// eslint-disable-next-line es/no-object-defineproperty -- safe
var defineProperty = Object.defineProperty;
var INCORRECT_VALUE = global.self !== global;

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

文件操作 - web.self.js

文件: /usr/share/nodejs/core-js/modules/web.self.js

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