/**
   * @fileoverview The rule should warn against code that tries to compare against -0.
   * @author Aladdin-ADD <hh_2013@foxmail.com>
   */
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = {
      meta: {
          docs: {
              description: "disallow comparing against -0",
              category: "Possible Errors",
              recommended: false
          },
          fixable: null,
          schema: []
      },
  
      create(context) {
  
          //--------------------------------------------------------------------------
          // Helpers
          //--------------------------------------------------------------------------
  
          /**
           * Checks a given node is -0
           *
           * @param {ASTNode} node - A node to check.
           * @returns {boolean} `true` if the node is -0.
           */
          function isNegZero(node) {
              return node.type === "UnaryExpression" && node.operator === "-" && node.argument.type === "Literal" && node.argument.value === 0;
          }
          const OPERATORS_TO_CHECK = new Set([">", ">=", "<", "<=", "==", "===", "!=", "!=="]);
  
          return {
              BinaryExpression(node) {
                  if (OPERATORS_TO_CHECK.has(node.operator)) {
                      if (isNegZero(node.left) || isNegZero(node.right)) {
                          context.report({
                              node,
                              message: "Do not use the '{{operator}}' operator to compare against -0.",
                              data: { operator: node.operator }
                          });
                      }
                  }
              }
          };
      }
  };