eslint/lib/rules/no-iterator.js

   1 /**
   2  * @fileoverview Rule to flag usage of __iterator__ property
   3  * @author Ian Christian Myers
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Requirements
  10 //------------------------------------------------------------------------------
  11
  12 const { getStaticPropertyName } = require("./utils/ast-utils");
  13
  14 //------------------------------------------------------------------------------
  15 // Rule Definition
  16 //------------------------------------------------------------------------------
  17
  18 /** @type {import('../shared/types').Rule} */
  19 module.exports = {
  20     meta: {
  21         type: "suggestion",
  22
  23         docs: {
  24             description: "Disallow the use of the `__iterator__` property",
  25             recommended: false,
  26             url: "https://eslint.org/docs/latest/rules/no-iterator"
  27         },
  28
  29         schema: [],
  30
  31         messages: {
  32             noIterator: "Reserved name '__iterator__'."
  33         }
  34     },
  35
  36     create(context) {
  37
  38         return {
  39
  40             MemberExpression(node) {
  41
  42                 if (getStaticPropertyName(node) === "__iterator__") {
  43                     context.report({
  44                         node,
  45                         messageId: "noIterator"
  46                     });
  47                 }
  48             }
  49         };
  50
  51     }
  52 };