eslint/lib/rules/no-caller.js

   1 /**
   2  * @fileoverview Rule to flag use of arguments.callee and arguments.caller.
   3  * @author Nicholas C. Zakas
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Rule Definition
  10 //------------------------------------------------------------------------------
  11
  12 module.exports = {
  13     meta: {
  14         type: "suggestion",
  15
  16         docs: {
  17             description: "disallow the use of `arguments.caller` or `arguments.callee`",
  18             recommended: false,
  19             url: "https://eslint.org/docs/rules/no-caller"
  20         },
  21
  22         schema: [],
  23
  24         messages: {
  25             unexpected: "Avoid arguments.{{prop}}."
  26         }
  27     },
  28
  29     create(context) {
  30
  31         return {
  32
  33             MemberExpression(node) {
  34                 const objectName = node.object.name,
  35                     propertyName = node.property.name;
  36
  37                 if (objectName === "arguments" && !node.computed && propertyName && propertyName.match(/^calle[er]$/u)) {
  38                     context.report({ node, messageId: "unexpected", data: { prop: propertyName } });
  39                 }
  40
  41             }
  42         };
  43
  44     }
  45 };