.config/coc/extensions/node_modules/coc-prettier/node_modules/eslint/lib/rules/no-whitespace-before-property.js

   1 /**
   2  * @fileoverview Rule to disallow whitespace before properties
   3  * @author Kai Cataldo
   4  */
   5 "use strict";
   6
   7 //------------------------------------------------------------------------------
   8 // Requirements
   9 //------------------------------------------------------------------------------
  10
  11 const astUtils = require("./utils/ast-utils");
  12
  13 //------------------------------------------------------------------------------
  14 // Rule Definition
  15 //------------------------------------------------------------------------------
  16
  17 module.exports = {
  18     meta: {
  19         type: "layout",
  20
  21         docs: {
  22             description: "disallow whitespace before properties",
  23             category: "Stylistic Issues",
  24             recommended: false,
  25             url: "https://eslint.org/docs/rules/no-whitespace-before-property"
  26         },
  27
  28         fixable: "whitespace",
  29         schema: []
  30     },
  31
  32     create(context) {
  33         const sourceCode = context.getSourceCode();
  34
  35         //--------------------------------------------------------------------------
  36         // Helpers
  37         //--------------------------------------------------------------------------
  38
  39         /**
  40          * Reports whitespace before property token
  41          * @param {ASTNode} node the node to report in the event of an error
  42          * @param {Token} leftToken the left token
  43          * @param {Token} rightToken the right token
  44          * @returns {void}
  45          * @private
  46          */
  47         function reportError(node, leftToken, rightToken) {
  48             const replacementText = node.computed ? "" : ".";
  49
  50             context.report({
  51                 node,
  52                 message: "Unexpected whitespace before property {{propName}}.",
  53                 data: {
  54                     propName: sourceCode.getText(node.property)
  55                 },
  56                 fix(fixer) {
  57                     if (!node.computed && astUtils.isDecimalInteger(node.object)) {
  58
  59                         /*
  60                          * If the object is a number literal, fixing it to something like 5.toString() would cause a SyntaxError.
  61                          * Don't fix this case.
  62                          */
  63                         return null;
  64                     }
  65                     return fixer.replaceTextRange([leftToken.range[1], rightToken.range[0]], replacementText);
  66                 }
  67             });
  68         }
  69
  70         //--------------------------------------------------------------------------
  71         // Public
  72         //--------------------------------------------------------------------------
  73
  74         return {
  75             MemberExpression(node) {
  76                 let rightToken;
  77                 let leftToken;
  78
  79                 if (!astUtils.isTokenOnSameLine(node.object, node.property)) {
  80                     return;
  81                 }
  82
  83                 if (node.computed) {
  84                     rightToken = sourceCode.getTokenBefore(node.property, astUtils.isOpeningBracketToken);
  85                     leftToken = sourceCode.getTokenBefore(rightToken);
  86                 } else {
  87                     rightToken = sourceCode.getFirstToken(node.property);
  88                     leftToken = sourceCode.getTokenBefore(rightToken, 1);
  89                 }
  90
  91                 if (sourceCode.isSpaceBetweenTokens(leftToken, rightToken)) {
  92                     reportError(node, leftToken, rightToken);
  93                 }
  94             }
  95         };
  96     }
  97 };