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node_modules/eslint/lib/rules/no-empty-pattern.js 1.13 KB
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  /**
   * @fileoverview Rule to disallow an empty pattern
   * @author Alberto Rodríguez
   */
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = {
      meta: {
          docs: {
              description: "disallow empty destructuring patterns",
              category: "Best Practices",
              recommended: true,
              url: "https://eslint.org/docs/rules/no-empty-pattern"
          },
  
          schema: [],
  
          messages: {
              unexpected: "Unexpected empty {{type}} pattern."
          }
      },
  
      create(context) {
          return {
              ObjectPattern(node) {
                  if (node.properties.length === 0) {
                      context.report({ node, messageId: "unexpected", data: { type: "object" } });
                  }
              },
              ArrayPattern(node) {
                  if (node.elements.length === 0) {
                      context.report({ node, messageId: "unexpected", data: { type: "array" } });
                  }
              }
          };
      }
  };