1. /**
    
  2.  * Copyright (c) Meta Platforms, Inc. and affiliates.
    
  3.  *
    
  4.  * This source code is licensed under the MIT license found in the
    
  5.  * LICENSE file in the root directory of this source tree.
    
  6.  *
    
  7.  * @emails react-core
    
  8.  */
    
  9. 
    
  10. 'use strict';
    
  11. 
    
  12. module.exports = {
    
  13.   meta: {
    
  14.     schema: [],
    
  15.   },
    
  16.   create(context) {
    
  17.     function report(node, name, msg) {
    
  18.       context.report(node, `Do not use the ${name} constructor. ${msg}`);
    
  19.     }
    
  20. 
    
  21.     function check(node) {
    
  22.       const name = node.callee.name;
    
  23.       switch (name) {
    
  24.         case 'Boolean':
    
  25.           report(
    
  26.             node,
    
  27.             name,
    
  28.             'To cast a value to a boolean, use double negation: !!value'
    
  29.           );
    
  30.           break;
    
  31.         case 'String':
    
  32.           if (node.type === 'NewExpression') {
    
  33.             context.report(
    
  34.               node,
    
  35.               "Do not use `new String()`. Use String() without new (or '' + value for perf-sensitive code)."
    
  36.             );
    
  37.           }
    
  38.           break;
    
  39.         case 'Number':
    
  40.           report(
    
  41.             node,
    
  42.             name,
    
  43.             'To cast a value to a number, use the plus operator: +value'
    
  44.           );
    
  45.           break;
    
  46.       }
    
  47.     }
    
  48. 
    
  49.     return {
    
  50.       CallExpression: check,
    
  51.       NewExpression: check,
    
  52.     };
    
  53.   },
    
  54. };