eslint/tests/fixtures/testers/rule-tester/modify-ast-at-first.js

   1 /**
   2  * @fileoverview Rule which modifies AST.
   3  * @author Toru Nagashima
   4  */
   5
   6 "use strict";
   7
   8 //------------------------------------------------------------------------------
   9 // Rule Definition
  10 //------------------------------------------------------------------------------
  11
  12 module.exports = {
  13     meta: {
  14         type: "problem",
  15         schema: []
  16     },
  17     create(context) {
  18         return {
  19             "Program": function(node) {
  20                 node.body.push({
  21                     "type": "Identifier",
  22                     "name": "modified",
  23                     "range": [0, 8],
  24                     "loc": {
  25                         "start": {
  26                             "line": 1,
  27                             "column": 0
  28                         },
  29                         "end": {
  30                             "line": 1,
  31                             "column": 8
  32                         }
  33                     }
  34                 });
  35             },
  36
  37             "Identifier": function(node) {
  38                 if (node.name === "bar") {
  39                     context.report({message: "error", node: node});
  40                 }
  41             }
  42         };
  43     },
  44 };